**Answer:**

6.025

**Step-by-step explanation:**

hope this helps:)

**Answer:6.025**

**Step-by-step explanation:use calculator**

In parallelogram ABCD, AB = 3 cm and the diagonals AC and BD are 5.8 cm and 4.2 cm respectively. If the diagonals AC and BD intersect at O, then the perimeter of ∆AOB is

In **parallelogram** ABCD, AB = 3 cm and the** diagonals **AC and BD are 5.8 cm and 4.2 cm respectively. If the diagonals AC and BD i**ntersect** at O, then the perimeter of ∆AOB is 8 cm

perimeter of a triangle = length 1 + length 2 + length 3

assuming

length 1 = AB = 3 cm

length 2 = 5.8 / 2

length 3 = 4.2 / 2

Reason for length 2 and length 3 is when the diagonal of a parallelogram intersect they bisect each other. **bisect **means divide each other into two equal parts

substituting the values

perimeter of the triangle = 3 + 5.8 / 2 + 4.2 / 2

= 3 + 2.9 + 2.1

= 8 cm

The **perimeter **of the** triangle** formed is **8 cm**

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what is the answer to 7.25x348

**Answer:2,523**

**Step-by-step explanation:**

Identify the slope and y intercept

**Step-by-step explanation:**

the y-intercept (b) is the easiest :

it is the y-value, when x = 0 : -3

the slope (m) is the ratio (y coordinate difference / x coordinate difference) when going from 1 point to another.

so, we need to identify 2 points in the line.

one we have already with b : (0, -3)

another is the x-axis intercept, which is clearly (4, 0)

the difference is not important, but we need to use the same for both (x and y).

I prefer to go from left to right, so from (0, -3) to (4, 0) :

x changes by +4 (from 0 to 4)

y changes by +3 (from -3 to 0)

the slope is +3/+4 = 3/4

We would like to estimate the proportion of uf students who owns a scooter to within 1% of the truth, with 95% confidence. We believe around 20% of students do. How many students should be sampled?.

It is determined that 188 students should be** sampled **to use the **confidence interval** for a proportion.

π ± z√π(1-π)/n

In which case,

z is indeed the z-score with the p-value of 1+α/2

The** error margin** is as follows:

M = z√π(1-π)/n

In this case:

z does have a p-value of at 95% confidence, so z = 1.96.Thus p = 0.2, a 20% estimate.Taking into account, this sameThen:

M = z√π(1-π)/n

0.02 = 1.96√0.02(1-0.02)/n

√n = 13.72

n = 188.23

To summarize:

A total of 188 students must be sampled to estimate the** proportion** of of students who owns a **scooter.**

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Alayna is hanging a picture frame in the center of a wall that is 8 feet wide. If the picture frame is 21 1 over 4

inches wide, how far will each side of the picture frame be from the edge of the wall (in inches)? First, estimate the amount and then find the exact measurement. In two or more complete sentences, explain how you solved the problem. You may include a diagram in your explanation if you wish.

**8 feet **is known to **equal 96 inches.**

**48 inches** are divided in half,

and because the **image **is hung in the **middle **of the **wall**,

the subject of the **image **is that,

**11 inches **on each side, as well.

This is,

**37 inches **of wall on each side of **48-11.**

A **rectangle **is a closed figure with four equal and **opposite sides**. Consequently, the length, which is also known as the height, and the width of a **rectangle **can be used to define it (sometimes called breadth).

The formula for a rectangle's **surface area **is as follows:

**A=lxw**

A=l×w

where:

A is the surface **area **of the **rectangle**;

L specifies the length of the **rectangle**.

Usually, it refers to the longest side of the **rectangle**.

W is the rectangle's width which is **rectangle's shortest side.**

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Wukong and Nice are playing a soccer match and the probabilities of them scoring are 7/8 and 5/6 respectively. What is the probability that at least one of them will score a goal if they each play the ball once?

**Answer:**

**Step-by-step explanation:**

2038

PLease help it’s due tomorrow morning

Explain the step that is used to solve the equation

1.Multiply 4 on both sides and you will get 3x=96

2.divide both sides by 3 and you will get the answer x=32

2.divide both sides by 3 and you will get the answer x=32

a community assesses a random sample of its residents by telephone questionnaire. obesity is strongly associated with diagnosed diabetes. this study design is best described as which one of the following: a. experimental b. cohort c. cross-sectional d. case-control

The **study** design is best described as** **a** case-control study**.

A community uses a telephone survey to rate a representative sample of its citizens.

Diabetes is significantly correlated with obesity.

Non-experimental or observational study designs include** cohort designs**. In a cohort study, the participants don't already have the desired result. They are chosen based on the person's exposure status.

A **case-control study** is a sort of observational research in which two existent groups with outcomes that differ from one another are found and compared on the basis of a purported causal factor.

An example of an **observational study **design is the **cross-sectional study design**. In a cross-sectional study, the researcher simultaneously assesses the participants' exposures and outcomes.

Therefore, the study is a** case-control study**.

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The varsity baseball team has won 15 out of their last

16 games. The junior varsity team has won 6 out of their

last 10 games. What is the probability that both teams

win their next game?

If you could give me step by step explanation that would be great.

Answer:

Step-by-step explanation:

Here are six numbers

-4, -2, -1, 5, 6, 8

Arrange the numbers into two pairs with the same total

**Answer: (8,-4), (6,-2), (5,-1)**

A recipe calls for 4 apples to serve 6 people. If Jack is planning to serve a crowd of 33 people, how many apples should he use?

**Answer:**

22 apples

**Step-by-step explanation:**

33/6=5.5*4=22

Pls give brainliest

**Answer:**

I believe the answer would be 22 apples

according to a government study among adults in the 25- to 34-year age group, the mean amount spent per year on reading and entertainment is $1,875. assume that the distribution of the amounts spent follows the normal distribution with a standard deviation of $640. (round your z-score computation to 2 decimal places and final answers to 2 decimal places.) a. what percent of the adults spend more than $2,775 per year on reading and entertainment?

According to a **government study **among adults the percent of the adults spend more than $2,775 per year on **reading **and **entertainment** is

Given data form the question

the mean amount spent per year on **reading **and **entertainment** is $1,875

standard deviation of $640

what percent of the adults spend more than $2,775 per year on **reading **and **entertainment**

Definition of variables

mean sample, μ = $1,875

standard deviation, σ = $640

measure X = $2,775

For **normal distribution,** the z-score of a measure X with mean μ and standard deviation σ is given by as follows:

Z = ( X - μ ) / σ

Z = (2775 - 1875) / 640

Z = 1.40625 gives p-value of 0.0798250014

This is equivalents to 7.98%

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What is the slope of the line that passes through the points (10, 4) and

(7, 3)? Write your answer in simplest form.

================================================

Work Shown:

[tex](x_1,y_1) = (10,4) \text{ and } (x_2,y_2) = (7,3)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{3 - 4}{7 - 10}\\\\m = \frac{-1}{-3}\\\\m = \frac{1}{3}\\\\[/tex]

-----------------

Extra info:

A slope of 1/3 means "go up 1, then to the right 3"

Think of it like this

slope = rise/run = 1/3

rise = 1 = go up 1

run = 3 = go to the right 3

-3p-4<6. I rlly need help guys

**Answer:**

p > -10/3

**Step-by-step explanation:**

-4<6+3p

-10<3p

p>-10/3

:]

**Answer: p > 10/-3**

**Step-by-step explanation:**

**1) Remove the whole numbers next to the variable**

Add 10 on both sides.

-3p < 10

**2) Set x by itself**

Divide -3 on both sides. Dividing -3 will flip the operator sign. (Dividing/Multiplying negative number flips the sign)

**p > 10/-3**

What is -0.25 as a fraction in its simplest form

**Answer:**

**-1/4**

**Explanation:**

To write the decimal -0.25 as a fraction we need to multiply and divide by 100 as follows:

[tex]-0.25\times\frac{100}{100}=\frac{-0.25\times100}{100}=\frac{-25}{100}[/tex]We multiply by 100 because there are 2 digits after the decimal point.

Then, we need to simplify the fraction, so we can divide the numerator and the denominator by 25 as:

[tex]\frac{-25}{100}=\frac{-25\div25}{100\div25}=-\frac{1}{4}[/tex]So, the fraction in its simplest form is -1/4

Paula completely covered a square wall using 52.5 ft2 of wallpaper without any overlap. Which measurement is closest to the side

length of this wall in feet?

O 9 ft

O 7ft

O 22 ft

O 44 ft

B. 7 ft

Explanation:

We can make an equation!

Area= b^2

We know the area is 52.5 ft^2.

52.5=b^2.

To get rid of an exponent, you can square root it! And when you do something to one side, you must do it to the other as well.

The square root of 52.5 is 7.25.

This is the closest to 7. Therefore, the answer is 7 ft!!

i hope this helped! <3

Explanation:

We can make an equation!

Area= b^2

We know the area is 52.5 ft^2.

52.5=b^2.

To get rid of an exponent, you can square root it! And when you do something to one side, you must do it to the other as well.

The square root of 52.5 is 7.25.

This is the closest to 7. Therefore, the answer is 7 ft!!

i hope this helped! <3

300 divided by 2(0.5 +4.5)^2

Answer: 6

Step-by-step explanation:

1. add (0.5 + 4.5) which equals 5, so now you have 2 x 5^2.

2. evaluate the power (5^2) which equals 25 and you end up with 2 x 25 which equals 50.

3. now you have 300 divided by 50.

300 divided by 50 is 6.

The value of the **expression** 300 divided by 2(0.5 +4.5)²is 6

**Simplification **is reducing the** expression/fraction/problem** to a simpler form. It makes the problem easy with calculations and solving.

Given an **expression**, 300 divided by 2(0.5 +4.5)²

300/2(0.5 +4.5)²

= 300/2x5²

= 300/2x25

= 300/50

= 6

Hence, The value of the **expression** 300 divided by 2(0.5 +4.5)²is 6

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a student missed 4 problems on a mathematics test and received a grade of 75%. if all the problems were of equal value, how many problems were on the test?

The **problems in the test** are 16.

In the given case a student missed four problems on a test.

The test happened to be a **mathematics** test and the student scored a total **percentage** of 75%.

It is mentioned that every question has of same score values.

To find out how many problems were actually on the test we need to solve the problem by following the steps.

Let,

Questions not attempted ( x ) = 4

**Percentage** gained ( y ) = 75%

The percentage lost is 25%

The total questions in the test are;

→ A = (100/25) * 4

A = 16

Therefore, the questions in the test are 16.

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Jordan is mixing water and flour to make tortillas. The number of cups of water, w, needed for f cups of flour is described by the equation w=0.75f . What does 0.75 tell us in this situation?

If the **number of cups** of water w, needed for f cups of flour is described by the** equation **w = 0.75f, 0.75 represents the number of cups of water needed for one cup of flour

The equation is

w = 0.75f

Where w is the number of cups waters needed for f cups of flour.

Here w is is** dependent variable** and f is the **independent variable**

We can see that w is **proportional** to the f, the 0.75 is the constant.

w = 0.75f

Move the f to left hand side of the equation

w/f = 0.75

Hence, If the number of cups of water w, needed for f cups of flour is described by the equation w = 0.75f, 0.75 represents the number of cups of water needed for one cup of flour

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Gino has a debit card. The account pays no interest. He keeps track of his purchases and deposits in this debit card register. Find the missing entries a through f.

SARL

778.19

8/4 Baseball Bat

42.19

8/5 Gas

8/7 Deposit

8/7 Gas

8/7

Dinner at Spooner's

On the Beach

8/11 Books for Fall Semester

a. 92.19

b. 51.00

C. $400.00

d. 25.00

e. 71.12

f. 491.51

**

**

92 19

ST 00

25 00

71 12

491 ST

400 00

a.

b.

C.

d.

e.

D is the correct answe

The **missing entries** are (a) $686, (b) $635, (c) $1035, (d) $1010, (e) $938.88 and (f) $447.37.

Debit card is a card owned by a person for which the money used for transaction will be **withdrawn **or added into the account of the holder immediately.

Given is a table showing the **transactions **of Gino with his debit card.

He has an **initial deposit amount **of $778.19.

**New balance **in the account will be the difference of previous balance and the** payment amount**.

He paid $92.19 for** baseball bat**.

a = $778.19 - 92.19 = $686

He paid $51.00 for **gas**.

b = $686 - $51 = $635

He **deposited **$400.

c = $635 + $400 = $1035

He paid $25 for gas.

d = $1035 - $25 = $1010

He paid $71.12 for **dinner **at Spooner's on the beach.

e = $1010 - $71.12 = $938.88

He paid $491.51 for the **books **for all semester.

f = $938.88 - $491.51 = $447.37

Hence the missing entries are found.

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a computer randomly selects 800 names from a list of all registered voters. those selected are surveyed to predict who will win the election for mayor.

a computer randomly selects 800 names from a list of all registered voters. Then option C is correct that is Simple random **sampling**

A simple random sample in statistics, is a subset of individuals chosen from a larger set. Each individual is chosen **randomly **and entirely by chance, such that each individual has the same probability for the entire larger set.

**the complete question is**

Identify the sampling method as simple random sampling, systematic sampling, convenience sampling, or stratified sampling. A computer **randomly **selects 800 names from a list of all registered voters. Those selected are surveyed to predict who will win the election for Mayor.

Choose the correct sampling technique below.

A. Systematic sampling

B. Convenience sampling

C. Simple random **sampling**

D. Stratified sampling

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Find the value of “B,” that will make a perfect square trinomial. x² + Bx + 1.

*

Type the answer for B as a whole number.

Using **algebraic identities**, we found that for B=**2** and B= **-2** , the **trinomial** x² + Bx +1 makes a **perfect square**.

Algebraic identities are the** identities **which aids in solving **product**s or **powers** of **algebraic expressions**. Most common **identities** are :

(a+ b)² = a² + 2ab + b²

(a- b)² = a² - 2ab + b²

a² -b² = (a+ b) (a- b), where a and b can be **variable** or **constants** or algebraic expressions.

Let the **perfect square** of the **trinomial** be (x +a)²

x² + Bx +1 = (x+ a)² = x² + 2xa + a² (using** identity **(a+ b)² = a² + 2ab + b²)

⇒ x² + Bx +1 = x² + 2xa + a²

⇒ Bx = 2xa , a² =1

⇒B = 2a , a =± 1

if a =1 ⇒ B = 2

If a = -1 , B = -2

For B = 2 , x² + Bx +1 = x² + 2(1)x +1² = (x+1)² ( ∵(a+ b)² = a² + 2ab + b²)

For B = -2 , x² + Bx +1 = x² -2x + (-1)² = x² -2x +1 = ( x-1)² (∵(a- b)² = a² -2ab

+ b²)

Thus, the given **trinomia**l x² + Bx +1 is **perfect square** when B =2 or -2

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What is the percentage change from 5 to 2?

**Answer:**

the percentage change is a 60% change.

**Step-by-step explanation:**

A change from 5 to 2 represents a negative change (decrease) of -60%

Use the formula found below on this webpage to find the percent change by replacing the given values:

Percent change = New - Old

|Old|

× 100%

Percent change = 2 - 5

|5|

× 100% =

-3

5

× 100 = -60% (decrease)

Where: 5 is the old value and 2 is the new value. In this case we have a negative change (decrease) of -60 percent because the new value is smaller than the old value.

5) The lengths of the fours sides of a quadrilateral are consecutive integers. If the perimeter is 94 meters, find the value

of the shortest of the four side lengths.

The **shortest** side is **22 meters** in the mentioned quadrilateral.

Let us assume the length of first side be x. So, the other three sides of length will be (x + 1), (x + 2) and (x + 3). The **perimeter** is **sum** of all sides of the quadrilateral.

**Keep the values** in the formula of perimeter -

94 = x + x + 1 + x + 2 + x + 3

Performing **addition** on Right Hand Side of the equation

94 = 4x + 6

Shifting 6 to other side of the equation

4x = 94 - 6

Performing **subtraction** on Right Hand Side of the equation

4x = 88

Shifting 4 to Right Hand Side of the equation

x = 88 ÷ 4

Performing **division**

x = 22

Thus, the shortest **side** of quadrilateral is **22 meters** long.

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Shiloh is starting a new workout regimen. Her trainer recommends that she increase the number squats she does by 35% every week. If in the second week Shiloh is doing 108 squats, how many squats did she do during her first week?

Middle School Math

The number of squats she did in the first week is **81 squats.**

This refers to the **amount**** ****of**** ****value**** **that a thing is incremented by, in a **percentage****,**** **which is over 100.

Given that she had a **percentage increase **by 35%

And started doing 108 squats

To find the **number of squats **she did during the first week would be:

100-35= 75%

75/100 * 108= **81 squats.**

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A bag of fertilizer that weighs 18 3/4 pounds can cover 5000 square feet. how many pounds of fertilizer will be needed to cover 27,000 square feet? how many bags of fertilizer are needed?

We know how many pounds are needed to cover 5000 ft^2, and we need to find how many are needed to cover 27000ft^2. To find this value, divide 27000 by 5000 and multiply the result by the weight.

27000/5000 x 18.75

5.4 x 18.75

101.25

So, we need 101 1/4 pounds of fertilizer. How many bags is that?

101.25/18.75

5.4

We'll say that since the 0.4 of a bag will still need to be used, that you need 6 bags to cover 27000ft^2.

For which of the following pairs (x,y)(x,y) does the inequality 12x^2 + 6y^2 \geq 17xy12x2+6y2≥17xy fail?

**Answer:**

=(3x - 2y( (4x - 3y)

**Step-by-step explanation:**

We have,

12x2 – 17xy + 6y2

The coefficient of x2 is 12

The coefficient of x is -17y

Constant term is 6y2

So, we express the middle term -17xy as -9xy – 8xy

12x2 -17xy+ 6y2 = 12x2 – 9xy – 8xy + 6y2

= 3x (4x – 3y) – 2y (4x – 3y)

= (3x – 2y) (4x – 3y)

If I rotated Block C by 90 degrees clockwise where would it be?

After the 90° **rotation**, Block C will resemble this in some ways (see the image below).

So, rotate block C by 90°:

Block C will look somewhat like this (Refer to the image attached below) after the **rotation **of 90°.

Therefore, after the 90° **rotation**, Block C will resemble this in some ways (see the image below).

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Under her cell phone plan, Mei Mei pays a flat cost of $46 per month and $5 per

gigabyte. She wants to keep her bill under $70 per month. Write and solve an

inequality which can be used to determine g, the number of gigabytes Mei Mei can

use while staying within her budget.

The **flat cost** of the plan = is $46 per month

Cost per gigabyte = $5 per gigabyte

Number of gigabytes = g

The maximum amount Mei Mei wants to spend on the bill = is $70 per month,

So, for each month,

**$46 + $5(g) ****<**** $70**

⇒ $5(g) < $70 - $46

⇒ $5(g) < $24

⇒ g < $24/$5

⇒** g ****<**** 4.8**

The number of gigabytes to be used per month should be** less than or equal to 4.8.**

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Inequality: 5g+46<70

Answer: g<4.8

Look at the distance vs. elevation graph. Describe the relationship between distance and elevation. Does the relationship support the continental drift theory? Provide at least one piece of support for your answer by referencing your graph

The relationship has **no relation** to **continental drift theory,** as it is a relation between distance and time, not distance and elevation.

The continental drift theory states that the world's tectonic **plates **are in constant **motion **over **time**.

This is supported by the fact that some millions of years ago, there was only one continent, named Pangea, and now we have the **continents **as we know. These continents are also **moving **a small amount a year.

In this problem, the **elevation **decreases and the **distance **increases, however, the continental drift theory should have the distance increasing or decreasing over time, hence the graph relationship has **no relation** to the continental drift theory.

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the acmeville metropolitan bus service currently charges $0.99 for an all-day ticket, and has an average of 472 riders a day. the bus company is not earning a profit, but according to their contract with the city, they cannot cut the number of buses on the road. they must therefore find a way to increase revenues. the bus company is considering increasing the ticket price to $ 1.1 . the marketing department's studies indicate this price increase would reduce usage to 195 riders per day.
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