Mathematics College

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Answers

Answer 1

Answer:

A = 254.34

Step-by-step explanation:

Area of a circle formula:

A = πr²

r = d/2 = 9

A = 3.14(9²)

A = 3.14(81)

A = 254.34

Answer 2

Answer:

254.34

Step-by-step explanation:

Good luck!

Related Questions

c2 - 6c-5
Evaluate the expression when c = -2

Answers

-2(2)-6(-2)-5
-4+12-5
Answer is 3

If the circumfrence of a circle is 117cm find length

Answers

Answer:

find the length??

Step-by-step explanation:

you do understand that length means finding how long something is right?

Abcdefghijklmnopqrstuvwxy&z

You have 26 songs in your MP3 player. After you add some more, you have 39 songs. How many songs did you add?

A. -13
B. 13
C. 65
D. 23

Answers

Answer:

Step-by-step explanation:

39-26 = ?

-26

____

you added 13 songs.

2/5 of 16= (estimate each product)

Answers

Answer:

6.4 rounds down to 6.

Step-by-step explanation:

Divide 16 by 5. Multiply that number by 2.

The sale price of $24 was 80 percent of the regular price.
What was the regular price?

Answers

$24 + 20%
=$28.8
This is the answer

Please help ASAP please and thank you have a great and blessed day!

Answers

Answer:

Step-by-step explanation:

4X15=60 9X5=45

Answer:

Multiples:

9: 9, 18, 27, 36, 45, 54, 63...

15: 15, 30, 45, 60, 75...

LCM: 45

Equivalent Fractions: 25/45 and 12/45

help me please ,
if a = 5, what is a +6?

Answers

Answer:

B.11 correct

Step-by-step explanation:

a=5

a+6

5+6=11

11 is the correct answer so B.11 is correct

Answer:

Step-by-step explanation:

If a=5 and there is a+6 you need to plug in the 5 from the a=5 in the equation a+6 to get 5+6 which equals 11 :D

Solve the inequality. y - 28 > 53

y > 28

y > 53

y > 81

y > 25

Answers

Answer:

y > 81

Step-by-step explanation:

82 - 28 = 54

So, 54 > 53

(I don't know how to explain this properly but this is the answer)

what is -2 x 3 i do not understand this and this is my last problem

Answers

Answer:

-6

Step-by-step explanation:

if they were both positive numbers, it would be 6. But when you multiply a negative by a positive, the answer is negative.

Answer:

-6

Step-by-step explanation:

When you multiply a positive number by another positive number, you will always get a positive number as your answer. Same thing for negative. If you multiply a negative by a negative, you will always get a positive. However, when you multiply a negative by a positive, you will always get a negative number.

Since you know this, you can multiply 2 by 3, which is 6. Because 2 is negative and 3 is positive, you know that the answer must be negative. Therefore, you add the negative symbol to 6, giving you -6.

I hope this isn't too confusing. Please let me know if you have any more questions. Good luck!

The graph shows a proportional relationship. Which equation matches the graph?

Answers

Answer:

Step-by-step explanation:

I think the answer is C. y=3x
Explanation: The reason I said that’s the answer is because if you do 1 x 3 you get 3 and if you do 3 x 3 that gives you 9.
Hopes this help apologize in advance if my answer is wrong :(

Show all work please :)

Answers

Answer: To find the inverse, interchange the variables and solve for y.

Step-by-step explanation:

f-^1 (x)= - 5x/3

ez math help -thanks

Answers

Answer:

use photo math.....

1) -8

2)9

3)18

3 is 8
4 is 9
5 is 18 hope is helps

ASAP HELP TYYY
A purse with a price of $58.45 has an 8% sales tax. What is the sales tax dollar amount?

Answers

It is $4.68. You do $58.45 times 0.08, which is $4.676, but you round that to $4.68.

58.45 x 0.08 = 4.676
4.67<6 round up above 5 round down below
4.68

Evaluate 8a- 1 + 0.5b when a = 1/4 and b = 10

Answers

8(1/4) - 1 + 0.5(10)

2 - 1 + 5

6

Help please plzzzzzzzz

Answers

Answer:

Step-by-step explanation:

120 + 90 + 90 + 60 = 360

-4a - 7 = 3 - 4a - 7
a) -6
b) no solution
c) -8
d) -9

Answers

No solution would be the answer because if you solve it you don’t get an answer

Answer:

it should be 3

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

Pls help me I will give brainliest

Answers

answer: x= 8, -8

explanation: i used the app m a t h w a y s

Answer:

x=8

Step-by-step explanation:

Hope this helps!!

A scale drawing of a rectangle painting is 12 inches long and 8 inches tall. The actual painting is 12 feet tall. What is the scale of the drawing? What is the perimeter of the actual painting? What is the area of the actual painting?

Answers

Answer:

x = 18

Step-by-step explanation:

[tex]\frac{8}{12} = \frac{12}{x}[/tex]

then cross-multiply

8x = 12 * 12

8x = 144

[tex]\frac{8x}{8} = \frac{144}{8}[/tex]

x = 18

A roller coaster is 50 feet above the ground and then drops to 18 feet below the ground. What is
the total distance of the roller coaster's drop?

Answers

Answer:

Step-by-step explanation:

50+18

1. A ball is kicked up from a platform 36 feet above the ground. The height of
the ball h(t) above the ground (measured in feet) can be modeled by the
function h (t)
-3t2 + 12t + 36, where t represents the amount of time
(in seconds) since the ball was kicked. How long to the nearest second did it
take the ball to hit the ground?
-
seconds to hit the ground

Answers

Answer:6

Step-by-step explanation:

So when the ball hits the ground -3t^2+12t+36 must equal 0

So you can factor a -3 out

-3(t^2-4t-12)=0

Factor -3(t-6)(t+2)=0

T-6=0 t+2=0

T=6 t=Negative 2

And since time can’t be negative the answer is 6

1. If tn =3n - 2, the value of S5 is:
(a) 35
(b) 40
(c) 45
(d) 30
If tn = 2n? + 3n, the value of Sais:
(a) 90
(b) 70
(C) 80
(d) None of these

Answers

Answer:

1) if tₙ = 3*n - 2, we want to find the value of S(5), which is the sum of the first 5 terms.

We can simply compute the sum directly, it is:

S(5) = t₁ + t₂ + t₃ + t₄ + t₅

S(5) = (3*1 - 2) + (3*2 - 2) + (3*3 - 2) + (3*4 - 2) + (3*5 - 2)

S(5) = 35

Then the correct option here is a).

2) This is not correctly written.

I will assume that we the n-th term is:

tₙ = n^2 + 3*n

And we want S(5) again

Then:

S(5) = t₁ + t₂ + t₃ + t₄ + t₅

S(5) = (1^2 + 3*1) + (2^2 + 3*2) + (3^2 + 3*3) + (4^2 + 3*4) + (5^2 + 3*5)

S(5) = 100

So the correct option is (d)

(Notice that if we had chosen any other S(n), the answer is still option (d) )

Find the measure of the numbered angle m<2

Answers

130 degrees yuhhhhhhhh

In AQRS, the measure of _S=90°, SQ = 13 feet, and QR = 59 feet. Find the measure
of ZR to the nearest tenth of a degree.

Answers

Answer:

Step-by-step explanation:

12.7

Sue has taken four exams so far in her History course. Her scores are 84.0, 78.2, 93, and 87.5. What is the average of these scores?

Answers

Answer: 85.7

Step-by-step explanation:

On a piece of paper, graph y< 2x+2. Then determine which answer choice
matches the graph you drew.
А
B
С
D
(0,2)
(0.2
(0.2)
(0,2)
1.4.1)
1.4.1
(1.4.1)
(4-1)
A. Graph A.
B. Graph B
ОО O
C. Graph C
D. Graph D

Answers

Answer:

graph A

Step-by-step explanation:

because 2x+2,x ...-1

so it is lies in graph A

Find the absolute value

-5/6|

Answers

Answer:

5/6 OR 0.83 (with the three repeating)

Hope that helps!

Step-by-step explanation:

6. 10-2 is how many times as large as 2 . 10-8?

Answers

Answer:

105 I think i might have did it wrong

Step-by-step explanation:

3.25 ÷ 10. 2) 685.34 ÷ 102. 3) 87 * 105.

Using the coordinate plane shown below, a third point is plotted 5 units to the right of (-4, 4). Where should a fourth point be plotted in order to create a rectangle?

(1, -4)
(1, 4)
(4, -1)
(-4, 1)

Answers

The answer is (1, -4)

Answer:The answer is (1,-4).

Step-by-step explanation: Please mark this brainliest.

Help please will give branliest

Answers

Answer:

mecury,jupiter,uranus,neptune

Step-by-step explanation:

Write an equation for the polynomial graphed below

y(x) =

Answers

you would look at the zeros of the function and their multiplicities (whether the roots pass through the x-axis or simply bounce off). Further if you look at the end behavior of the function, you know that the a value must be negative

y(x)= -1/8(x+2)(x+1)(x-2)(x-4)

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