PLEASE HELP ME!!!
Tim is sorting his book collection into groups. He places each group onto bookshelves that can each hold a maximum of 25 pounds. His collection includes hardcover books that weigh 3 pounds each and softcover books that weigh 2 pounds each.

Select all of the possible numbers of hardcover books that could be on one bookshelf.
3
4
8
9
12

Answer:

t = - 24

Step-by-step explanation:

Given t varies inversely as a then the equation relating them is

t = [tex]\frac{k}{a}[/tex] ← k is the constant of variation

To find k use the condition t = 2 when a = - 4

2 = [tex]\frac{k}{-4}[/tex] ( multiply both sides by - 4 )

- 8 = k

t = [tex]\frac{-8}{a}[/tex] ← equation of variation

When a = [tex]\frac{1}{3}[/tex] , then

t = [tex]\frac{-8}{\frac{1}{3} }[/tex] = - 24

Answer:

Step-by-step explanation:

π/2= 1.5707963267948966192313

0.5π = 1.5707963267948966192313

The correct answer is same

Answer:

yes both are same

both have same answer

hope it is helpful to you

Answer:

21/60 (simplified = 7/20)

Step-by-step explanation:

Answer:

4:1

I hope this helps a little bit.

Answer:

C

Step-by-step explanation:

Took it

The confidence interval of eggs chickens from this poultry farm lay in one month will be (22.96, 26.64). Then the correct option is C.

If the sample size is given to be n < 30, then for finding the confidence interval for mean of population from this small sample, we use t-statistic.

Let the sample mean given as μ and

The sample standard deviation σ, and

The sample size = n, and

Then the heights would be outside the 90% confidence interval will be

For 90% confidence interval, we have z = 1.645

⇒ μ ± z (σ/√n)

Kat is interested in getting chickens, so she can have fresh eggs.

Before she buys her chickens, she wants to find the mean number of eggs each one will lay.

She begins by randomly selecting 40 chickens from a large poultry farm and counts how many eggs each one lays within one month.

She finds the mean to be 24.8 eggs with a standard deviation of 6.9 eggs.

The 90% confidence interval for the true mean number of eggs chickens from this poultry farm lay in one month will be

⇒ μ ± z (σ/√n)

⇒ 24.8 ± 1.645 (6.9/√40)

⇒ 24.8 ± 1.84

Then the confidence interval of eggs chickens from this poultry farm lay in one month will be (22.96, 26.64).

Then the correct option is C.

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Answer:

to the right

Step-by-step explanation:

Answer:

Right.

Step-by-step explanation:

When the x coordinate is positive, you move right on the coordinate plane.

For reference, here are the other directions.

When the x coordinate is negative, you move left on the coordinate plane.

When the y coordinate is positive, you move up on the coordinate plane.

When the y coordinate is negative, you move down on the coordinate plane.

Answer:

the opposite Angles sum up to give 180

Step-by-step explanation:

3y +3y = 180

y=30

if y = 30 the x = 55

are you clear?

Answer:

3y+3y=180°{sum of opposite angle of parallelogram are supplementary}

6y=80

y=180/6

y=30°

again,

4y-65+x=180°{ sum of of opposite angle of parallelogram are supplementary }

4×30-65+x=108

x=180-55

x=125

so to make quadrilateral as parellogram

Answer:

[tex]A' = (-4,4)[/tex]

[tex]B' = (2,6)[/tex]

[tex]C' = (2,0)[/tex]

Step-by-step explanation:

Given [Missing from the question]

[tex]A = (-2,2)[/tex]

[tex]B= (1,3)[/tex]

[tex]C= (1,0)[/tex]

[tex]k = 2[/tex] --- scale factor

Required

The new coordinates

The new coordinate is calculated by:

[tex]New = Old * k[/tex]

So, we have:

[tex]A' = A * 2[/tex]

[tex]A' = (-2,2) * 2[/tex]

[tex]A' = (-4,4)[/tex]

[tex]B' = B * 2[/tex]

[tex]B' = (1,3) * 2[/tex]

[tex]B' = (2,6)[/tex]

[tex]C' = C * 2[/tex]

[tex]C' = (1,0) * 2[/tex]

[tex]C' = (2,0)[/tex]

Answer:

The 3rd option

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

area = base x height / 2

22 = 4x/2

2x22=44/4=x=11

hope that answers your question

Answer:

[tex]x=11[/tex]

Step-by-step explanation:

[tex]1/2*4*x=22[/tex]

→ [tex]2x=22[/tex]

→ [tex]x=22/2[/tex]

→ [tex]x=11[/tex]

[tex]-------[/tex]

hope it helps...

have a great day!!

Answer:

2 and 4 answers

Step-by-step explanation:

[tex]\frac{xy}{xv} = \frac{yz}{vw} = \frac{zx}{wx}[/tex]

so the second is correct and forth is correct too

Answer:

I think it's e) tom brady

Step-by-step explanation:

Answer:

Step-by-step explanation:

there are 3 parts to the given shape.  The half circle, the box part in the middle and then the right triangle on the left side.  Add those 3 parts up for the total area

box part in the middle:  2*4 = 8

right triangle on the left: 1/2*4*8 = 16

half circle: 1/2*[tex]\pi[/tex]*[tex]2^{2}[/tex]= 6.2831...

add the 3 up

8+16+6.2831 = 30.2831

30.3 [tex]m^{2}[/tex]  looks good  :)  for the answer ( it's a close approximation )

4/5 or 0.8 or 80%

hope you have an amazing day <3

The probability that  the pitcher will throw 4 or fewer pitches to a batter is 0.9.

The way to find the likeliness of an event is called Probability.

It is given that

Pitcher is throwing ball

The probability that he throws 4 or fewer pitches to a batter is = ?

The no. of favourable outcomes for the given condition is

P(X ≤4 ) = P(X=1) + P(X =2) + P(X=3)+P(X=4)

Total Outcomes = 15+20+40+15+20

Total outcomes = 100

Favourable outcomes = 15+20+40+15

Favourable Outcomes = 90

Probability =  Favourable Outcomes / Total Outcomes \

Probability = 90/100 = 0.9

Therefore the probability that  the pitcher will throw 4 or fewer pitches to a batter is 0.9.

To know more about Probability

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Answer: n=-2

Step-by-step explanation:

Given

The length of the football field is  [tex]300\ ft[/tex]

In the mile, it can be expressed as [tex]5.7\times 10^n\ mile[/tex]

Also, [tex]5280\ ft=1\ mile[/tex] or

[tex]1\ ft=\dfrac{1}{5280}\ miles\\\\1\ ft=1.893\times 10^{-4}\ miles[/tex]

converting [tex]300\ ft[/tex] to miles

[tex]\Rightarrow 300\times 1.893\times 10^{-4}\\\Rightarrow 5.68\times 10^{-2}\approx 5.7\times 10^{-2}[/tex]

Comparing it with the given value [tex]5.7\times 10^n\ mile[/tex]

we get [tex]n=-2[/tex]

Answer:

The answer is 10 foot

Step-by-step explanation:

A square has 4 sides, so technically 40/4 will give you the answer, which is 10.

Answer:

Hi! The answer is in the picture! *They're color coded*

Step-by-step explanation:

☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆

☁Brainliest is greatly appreciated!☁

Hope this helps!!

- Brooklynn Deka

Answer:

∠ACB = 59°

Step-by-step explanation:

∠BAC = 180 - 116 = 64°

∠ACB = 180 - 64 - 57 = 59°

Answer:

6:5

Step-by-step explanation:

Bubble algae cells can grow up to 5 cm in diameter. Calculate the surface area : volume ratio of this cell.

The algae is spherical in nature

Volume of the algae =4/3 pi r³

Volume of the algae = 4/3×pi×2.5³

Volume of the algae = 62.5/3 pi

Surface area = 4pi r²

Surface area = 4pi ×2.5²

Surface area = 25pi

Taking their ratio

surface area : volume ratio

= 25pi:62.5/3 pi

= 25 × 3/62.5

= 1.2

Hence the required ratio is 12/10 which is 6:5

Answer:

The 41st term of the given series is 324

Step-by-step explanation:

a= 4

a2= 12

d= a2-a

d= 12-4 = 8

now, we have to find 41 term that is a41

a41 = a+ 40d

a41= 4+ 40× 8

a41= 4+ 320

= 324

therefore the 41st term is 324

Answer:

324

Step-by-step explanation:

The sequence observed appears to be an arithmetic sequence. The formula for an arithmetic sequence is an = a1 + (n - 1)d, where an is the nth term, a1 is the first term, n is the term position, and d is the common difference. Let's write down what we know.

n = 41

a1 = 4

d = 8

So, let's plug our values into the equation and solve.

an = 4 + (41 - 1)8

an = 4 + (40)8

an = 4 + 320

an = 324

Answer:

What is the question

Step-by-step explanation:

Answer:

What the question?

Step-by-step explanation:

Answer:

4 seconds

Step-by-step explanation:

Answer:

ML = 12.8

Step-by-step explanation:

24/6.4 = 48/ML

24ML = 307.2

ML = 12.8

Answer:

x ≤ 1/3

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

9514 1404 393

Answer:

  (25/3)π

Step-by-step explanation:

A central angle of 120° is 1/3 of a circle, so the arc length will be 1/3 of the circumference:

  (1/3)(25π) = (25/3)π ≈ 26.18 . . . . units

Answer:

Circumference = 25π

Total angle made by circle = 360

Now,

120 is ⅓ of 360⁰.

⅓ × 25π = 25π/3

Hence,

Length of arc = 25π/3

[tex] \\ [/tex]

Answer:

240 ml

Step-by-step explanation:

more calculations

Answer:

11. 3

12. 78.74

13. 30

14. 69.74

15. 48

16. 7

17. 36.9

18. 69.5125888

Step-by-step explanation:

Used a calculator.

Answer:

its 84

area = perimeter of base x height + 2(area of base)

the rest you know what to do -_-

Step-by-step explanation:

Answer:

Dionne can fold 210 packing boxes in 60 minutes

Elia can fold 210 packing boxes in 70 minutes

Step-by-step explanation:

Dionne:

175 packing boxes in 50 minutes

Boxes folded per minute = Total packing boxes / number of minutes

= 175/50

= 3.5 packing boxes per minute

Number of minutes to fold 210 packing boxes = Total packing boxes / boxes packed per minute

= 210/3.5

= 60 minutes

Dionne can fold 210 packing boxes in 60 minutes

Elias:

120 packing boxes in 40 minutes

Boxes folded per minute = Total packing boxes / number of minutes

= 120/40

= 3 packing boxes per minute

Number of minutes to fold 210 packing boxes = Total packing boxes / boxes packed per minute

= 210/3

= 70 minutes

Elia can fold 210 packing boxes in 70 minutes