**Answer:**

17 and a half days OR 18 days

**Step-by-step explanation:**

7 books : 8 days

20 books: x days

cross multiply

x = (8×20)÷ 7

x = 17.5

therefore

17 and a half days or 18 days

...................................................................

plz write your proper question

The polygons are similar. Find the value of each variable.

[tex]\\ \sf{:}\dashrightarrow \dfrac{4}{x}=\dfrac{6}{9}[/tex]

[tex]\\ \sf{:}\dashrightarrow 6x=36[/tex]

[tex]\\ \sf{:}\dashrightarrow x=6[/tex]

#y

[tex]\\ \sf{:}\dashrightarrow \dfrac{y}{12}=\dfrac{12}{18}[/tex]

[tex]\\ \sf{:}\dashrightarrow \dfrac{y}{12}=\dfrac{2}{3}[/tex]

[tex]\\ \sf{:}\dashrightarrow 3y=24[/tex]

[tex]\\ \sf{:}\dashrightarrow y=8[/tex]

Here we go

4/x=6/94/x=2/32/x=1/3x=6And

y/12=12/1818y=12²18y=144y=8Sheila is making accessories for the soccer team. She uses 883.14 inches of fabric on headbands for 38 players and 3 coaches. She also uses 324.52 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player?

**Answer:**

29.455

**Step-by-step explanation:**

add the inches of fabric together and divide by the total number of players and coaches

To increase the volume of a sphere, you

must in crease the radius

decrease the radius

None of the answer choices is correct

decrease the circumference

Must increase the radius r, as volume of a sphere depends on the radius.

The volume of a **sphere **is directly **proportional **to the radius cube thus with an increase in the **radius **it will increase so option (A) is correct.

A sphere is a 3D geometrical **object **which has a radius and becomes a point that **revolves **around a fixed point called the **center**.

For example, if you have a **sphere **of **radius **r then its surface area will be 4πr² and

The volume of a sphere with **radius **r is given as (4/3)πr³.

V ∝ r³

By **increasing **the **radius **r the volume V will rapidly increase.

Hence "Because the **volume **of a sphere is precisely proportional to the cube of its radius, it will **grow **as the radius grows".

For more about a **sphere**,

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Opposite rays form a:

O line

O ray

O point

O plane

5

**Answer:**

ray

**Step-by-step explanation:**

A pair of opposite rays form a straight line.

Explanation:

A pair of opposite rays are two rays that have the same endpoint and extend in opposite directions. So, together a pair of opposite rays always form a straight line. So line is your answer.

Explanation:

A pair of opposite rays are two rays that have the same endpoint and extend in opposite directions. So, together a pair of opposite rays always form a straight line. So line is your answer.

he Nassau Bahamas Community College (NBC) claims that students who take statistics spend on average 19 hours a week working. The population standard deviation is not known. Statistics students in MAT 102 believe students work more than 19 hours because they want to make more money.

Using the **t-distribution,** it is found that since the test statistic is greater than the critical value for the right-tailed test, it is found that there is **enough evidence** to conclude that the **students' claim** that they work more than 19 hours is **correct**.

At the **null hypothesis**, it is tested if they spend on average 19 hours a week working, that is:

[tex]H_0: \mu = 19[/tex]

At the **alternative hypothesis**, it is tested if they spend more than 19 hours a week working, that is:

[tex]H_1: \mu > 19[/tex]

We have the standard deviation for the sample, hence, the *t-distribution* is used.

The** test statistic **is given by:

[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]

The **parameters **are:

Searching the problem on the internet, it is found that the **values **of the *parameters *are:

[tex]\overline{x} = 24.2, \mu = 19, s = 12.59, n = 25[/tex]

Hence, the **value **of the *test statistic* is:

[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]

[tex]t = \frac{24.2 - 19}{\frac{12.59}{\sqrt{25}}}[/tex]

[tex]t = 2.07[/tex]

The **critical value** for a right-tailed test, as we are testing if the mean is greater than a value, with a significance level of 0.05 and 25 - 1 = 24 df is of [tex]t^{\ast} = 1.71[/tex]

Since the test statistic is greater than the critical value for the right-tailed test, it is found that there is **enough evidence** to conclude that the **students' claim** that they work more than 19 hours is **correct**.

To learn more about the **t-distribution,** you can take a look at https://brainly.com/question/13873630

How do you divide 35 and 97.3

**Answer:**

To divide a decimal number by a decimal number, multiply the divisor by as many tens as necessary until we get a whole number, and remember to multiply the dividend by the same number of tens. For example, 13.8 ÷ 0.6 becomes 138 ÷ 6 = 23.

14. The sun casts a shadow from a flag pole. The height of the flag pole is three times the length of its shadow. The distance between the end of the shadow and the top of the flag pole is 20 feet. Find the height of the flag pole.

7

It would be about 6.7 ft

It would be about 6.7 ft

A marketing research company is estimating which of two soft drinks college students prefer. A random sample of n college students produced the following 95% confidence interval for the proportion of college students who prefer drink A: (.262. .622). Identify the point estimate for estimating the true proportion of college students who prefer that drink.

A) .18

B) .622

C) .262

D) .442

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

Explanation:

To get the point estimate, we average the endpoints of the given confidence interval. Add up the endpoints and divide by 2

(low+high)/2 = (0.262+0.622)/2 = **0.442**

The value **0.442** is right in the middle of the confidence interval, so it's a natural point estimate for the population proportion.

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

Alternative Method:

Subtract the endpoints to find the confidence interval width

width = high - low = 0.622 - 0.262 = 0.36

Cut this in half to get the margin of error (MoE)

MoE = width/2 = 0.36/2 = 0.18

Then we can either add on the MoE to the low endpoint, or subtract it from the high endpoint, to land on the center

center = low + MoE = 0.262 + 0.18 =In the gift shop of the History of Flight museum, Elisa bought a kit to make a model of a jet airplane. The actual plane is 27 feet long with a wingspan of 18 feet. If the finished model will be 13.5 inches long, what will the wingspan be?

The **length** of the **wingspan** of the **finished model** based on the dimensions of the kit is **0.75 feet**

Given:

Kit

Plane = **27 feet**

wingspan = **18 feet**

Model:

Plane = **13.5 inches**

Wingspan = **x feet**

**convert** 13.5 inches to feet

1 feet = 12 inches

13.5 inches = **1.125 feet**

So,

**equate** Ratio of plane to wingspan

27 : 18 = 1.125 : x

27/18 = 1.125 / x

**cross product**

27 × x = 18 × 1.125

27x = 20.25

x = 20.25/27

**x = 0.75 feet**

Therefore, the **length** of the **wingspan** of the **finished model** based on the dimensions of the kit is **0.75 feet**

Learn more about ratio:

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HELP

find the a,b,c of this table

**Answer:**

*a = b = 1 , c = - 8*

**Step-by-step explanation:**

ax² + bx + c = y

( - 5 )² a - 5b + c = 12

*c = - 8*

3² a + 3b + c = 4

25a - 5b - 8 = 12 ⇔ 25a - 5b = 20 ⇔ 5a - b = 4 ........ *(1)*

9a + 3b - 8 = 4 ⇔ 9a + 3b = 12 ⇔ 3a + b = 4 .......... *(2)*

** (1)** +

8a = 8 ; *a = 1*

*b = 1*

*y = x² + x - 8*

Find the slope of the line that passes through (28, -25) and (27, 25).

Slope is the change in Y over the change in X:

Slope = (25- -25) / (27 - 28)

Slope = 50/-1

**Slope = -50**

Which choices are equivalent to the expression below? Check all that apply.

5/3

I A. 75

]

B. v3.15

I C. 75

O D. 125. 3

IE. 45

0 F 15.15

Answer:

ADF

Step-by-step explanation:

A.root 75=root25 xroot3=5root3

B.=root15

C=75

D=5root3

E:=root9xroot5=3root5

F=root5xroot5xroot3=5root3

The solution is Option A , Option D , Option F

The values of the **equations **are √75 , √25 x √3 and √15 x √5

**What is an Equation?**

**Equations **are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an **equation**. The "=" sign and terms on both sides must always be present when writing an **equation**.

Given data ,

Let the **equation **be represented as A

Now , the value of A is

A = 5√3 be **equation **(1)

On simplifying the **equation **, we get

The value of A = √ ( 5 )² ( 3 )

The value of A = √25 x √3

The value of A = √75

The value of A = √15 x √5

Hence , the values of the **equations **are √75 , √25 x √3 and √15 x √5

To learn more about **equations **click :

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Select the equation of the quadratic function that models the relationship between time and height for an object thrown into the air, as presented in the parabola above.

Question 5 options:

A) ƒ(x) = –(x + 2)2 + 7

B) ƒ(x) = –(x – 2)2 + 7

C) ƒ(x) = (x – 2)2 + 7

D) ƒ(x) = (x + 2)2 + 7

**Answer:**

B

**Step-by-step explanation:**

lmk if you want an explanation

1. Write

500 + 40 + 7 +

6 x (1/10) +

8 X (1/100) +

3 x (1/1000)

in standard form.

The answers

1) 547

2) 0.6

3) 0.08

4) 0.003

1) 547

2) 0.6

3) 0.08

4) 0.003

If 90° < θ < 180° and cscθ = 3, then cotθ = _____.

[tex]\text{Given that,}\\\\\csc \theta = 3\\\\\implies \csc^2 \theta = 9\\\\\implies 1+ \cot^2 \theta = 9\\\\\implies \cot^2 \theta = 8\\\\\implies \cot \theta = \pm \sqrt 8 = \pm 2\sqrt 2\\\\\text{Since,}~90^{\circ}< \theta < 180^{\circ},\\\\\cot \theta = -2\sqrt 2[/tex]

2+2 (I have been struggling on this for a long time)

You might need a maths degree for this one, I believe it’s 4 but don’t quote me on that.

It’s is 4 2+2=4 ez your welcome

Identify the slope and y-intercept of the line 4x + 2y < 3.

**Answer:**

**Step-by-step explanation:**

4x+2y<3

y<-2x + [tex]\frac{3}{2}[/tex]

If f(x)=7e^x, find which is the value of f(−3) rounded to the nearest hundredth.

**Answer:**

[tex]f(-3)\approx0.35[/tex]

**Step-by-step explanation:**

[tex]f(x)=7e^x[/tex]

[tex]f(-3)=7e^{-3}\approx0.35[/tex]

Each factory at a candy company has 498 workers. There are 12 factories. )

How many workers are employed at each candy company

**Answer:**

5,976 workers

**Step-by-step explanation:**

498 times 12 = 5976

**Answer: 41.5**

**Step-by-step explanation: you have to do 498 divided by 12 and then you will get your answer.**

Can someone please help me with both questions I will mark u brilliant

1. We can simply multiply 6.50 by 2!

6.50 x 2 = 13

The book cost $13

2. The easiest way to do this is to convert the fractions into decimals.

1/4 = 0.25

1/5 = 0.2

1/8 = 0.125

Add them together: 0.575!

Subtract this from 1: .425

Multiply by 100: 42.5

42.5% is your answer!

Hope this helps!

Answer: B

Step-by-step explanation:

Simplify: (ab + bc) (ab - bc)

[tex] \: \: \: \: [/tex]

[tex] = {a}^{2} \: {b}^{2} - {b}^{2} \: {c}^{2} [/tex]

**Step-by-step explanation:**

[tex](ab + bc)(ab - bc)[/tex]

use[tex](ab {)}^{2} - (bc {)}^{2} [/tex]

to raise a[tex] = {a}^{2} {b}^{2} - {b}^{2} {c}^{2} [/tex]

hope it helpsfind the answer pleasere

**Answer:**

b is the answer f(e) gives us b

This shape is broken up into rectangles. What is the area of the

entire shape?

**Answer:**

38inch2

**Step-by-step explanation:**

3inch*2inch+8inch*4inch

=6inch2+32inch2

=38inch2

Help with the answer

**Answer:**

3 6/7

**Step-by-step explanation:**

Absolute value is the distance a number is away from 0 on a number line; another way of thinking about absolute value is that it is the positive version of every number. So, the absolute value of -1 is 1, and the absolute value of 88 is 88. We can apply this rule to 3 6/7 - how far is it away from 0 on the number line? What is it as a positive number? Well it is 3 6/7 away from 0 on the number line, and it already is positive, so our final answer will be **3 6/7**.

Hopefully that's helpful! :)

[tex]|3\frac{6}{7}|=3\frac{6}{7} =\frac{27}{7}[/tex]

ok done. thank to me :>

What is the answer to this 1/3(n+1)=1/6(3n-5)

**Answer:**

n=7

distribute 1/3 by 1/3 and 1 then distribute 1/6 to 3n and 5 combine like terms for both sides simplifying to -n=(-7) divide - by n and -7 getting you n=7.

❤️‼️‼️‼️‼️‼️‼️‼️❌❌❣️❣️❣️❣️❣️❣️

Answer: a

Step-by-step explanation:

**Answer:**

it's A

**Step-by-step explanation:**

determine the right and left hand behavior of the graph of the following functions.

[tex]f(x)=6-2x+4x^{2} -5x^{3}[/tex]

**Answer:**

x → -∞, y → ∞

x → ∞, y → -∞

**Step-by-step explanation:**

The function is odd degree with a negative leading coefficient. Its shape is generally down to the right (\). The end behavior will be ...

** x → -∞, y → ∞**

** x → ∞, y → -∞**

AYO y'all can someone help wit this question urgent?

the amount in Maddies back account can be written ad a function of time. What is the equation for maddies bank account?!?

**Answer:**

I think this is right lol

**Step-by-step explanation:**

f(x)=49+x

The standard error of is the _____. Group of answer choices variance of variance of the sampling distribution of standard deviation of the sampling distribution of difference between the two means

**Answer:**

standard deviation of the sample distribution of the difference between these two sample means

**Step-by-step explanation:**

Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a diameter of 18 feet and a height of 15 feet. Container B has a diameter of 16 feet and a height of 18 feet. Container A is full of water and the water is pumped into Container B until Conainter B is completely full.To the nearest tenth, what is the percent of Container A that is full after the pumping is complete?
Which components are included in a written argument? Select the two correct answers.(1 point)
PLEASE ANSWER ILL GIVE 5 STARS AND A HEART
Body Cells have ____ the number of chromosomes as sex cellsA. One-HalfB. TwiceC. Four TimesD. One-Fourth
I promise I will give you a crown if you do it right.Q. Arrange the following integers in ascending order.a. 3902, -3923, -3454, -3345, 3623, -3212.b. 1005, -1090, -1420, -1230, 1302.c. -100, -110, -99, 99, 101, 110.d. 9990, 9011, 9909, -9099, -9990, 9099.
n a distant solar system, a planet of mass 5.0 x 1024 kg orbits a sun of mass 3.0 x 1030 kg at a constant distance of 2.0 x1011 m. How many earth days does it take for the planet ot execute one complete orbit about the sun
(4x 2 2x + 10) + (2x 2 + 4x 2)
Why should ethics be considered when speaking in public?
A train has 11 train cars. At least 11 passengers are in each train car. No 3 neighboring train cars have more than 50 passengers altogether. What is the maximum possible number of people on the train?
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Complete each sentence with the correct form of one of the following verbs: beber,compartir, escribir, or vender.1. Nosotras________frutas muy ricas.2. Roberto y Mario son amigos y siempre_________el almuerzo.3. Jacinto y yo________correos electrnicos todos los das.4. Por qu el seor Lpez no_________caf?
1 3/8+3 1/3 please Answer
A $500 prize is shared equally between Maxwell andLino.What fraction of the money does Maxwell get?
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35.How can Congress override a presidential veto? a. Majority vote in the House and 60 votes in the Senate b. Three-fourths vote in each house c. Two-thirds vote in each house d. Majority approval in the Supreme Court e. A two-thirds vote in the House and a majority in the Senate
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Question is in image belowA lamppost is 6 feet high and casts and 8 foot shadow. At the same time of day, a flagpole near the lamppost cast a 20 foot shadow. Using the properties of similar triangles, find the height, H, of the flagpole