Can someone please answer this i will give brainliest if i can

Answer:

98π cm²

Step-by-step explanation:

A circle is a plane figure. A circle is the locus of a point such that its distance from a given point is always constant.

We can see that both circle C and circle D are equal with a radius of 7 cm.

Area of circle C = π* radius² = π * 7² = 49π cm²

Area of circle D = π* radius² = π * 7² = 49π cm²

The sum of the areas of circle C and circle D = Area of circle C + Area of circle D = 49π + 49π = 98π cm²

Answer:

c

Step-by-step explanation:

Answer:

$300.00

Step-by-step explanation:

Answer:

Step-by-step explanation:

D. 4.15

Answer:

0.28277

I got this by plugging in 0.2512 for "A" ( A = π r² ) Then I solved the rest ( divide both sides by pie, then taking the square root from that.

Step-by-step explanation:

Cos Milky Said it.

Answer:

1/5*9

Step-by-step explanation:

if sandi has 9 different types of fabric she would multiply each amount of equal fabric to get the answer so it would be 1/5*9

Answer:

sin trigonometry ratio

Step-by-step explanation:

Given

See attachment for triangles

Required

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

From the attached diagram, both triangles are similar triangles because

(1) the second triangle is a dilation of the first triangle by a ratio of 1.5

i.e

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

[tex]k = 1.5[/tex]

(2) They have angle 30 degrees, and have their right angles located at the same point

In the first triangle, the sine of 30 degrees is represented as:

[tex]sin(30) = \frac{Opp}{Hyp}[/tex]

This gives:

[tex]sin(30) = \frac{a}{8}[/tex]

In the second triangle:

[tex]sin(30) = \frac{Opp}{Hyp}[/tex]

So:

[tex]sin(30) = \frac{x}{12}[/tex]

By comparison:

[tex]sin(30) = sin(3)[/tex]

Hence:

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

Answer: 0.04

Step-by-step explanation:

The measurement error is calculated as:

= Error / Ideal value

= (2.5 - 2.4) / 2.5

= 0.1/2.5

= 0.04

Therefore, the correct option is D.

Answer:

Step-by-step explanation:

800(1-3/100)

800(100-3)/100

800(97)/100

77600/100

776 is her score.

Answer:

wait can we have the graph

Step-by-step explanation:

Answer:

Function 2 has the larger maximum at (2, 5).

Step-by-step explanation:

Answer:

28/11

Step-by-step explanation:

4x7=28

1x11=11

so and: 28/11

hope this helps

Answer:

Step-by-step explanation:

Answer:

-972

Step-by-step explanation:

if f(1)= 4 and f(n) = -3f(n-1) then find the value of f(6)

If f(1)= 4

f(2) = -3f(2-1)

f(2) = -3f(1)

f(2) = -3(4)

f(2) = -12

f(3) = -3f(3-1)

f(3) = -3f(2)

f(3) = -3(-12)

f(3) = 36

f(4) = -3f(4-1)

f(4) = -3f(3)

f(4) = -3(36)

f(4) = -108

f(5) = -3f(5-1)

f(5) = -3f(4)

f(5) = -3(-108)

f(5) = 324

f(6) = -3f(6-1)

f(6) = -3f(5)

f(6) = -3(324)

f(6) = -972

hence the sixth term of the sequence is -972

Answer:

im mexican white black indian hawaiin so yeeeee ️Step-by-step explanation:

Answer:

85 ft

Step-by-step explanation:

Use the Pythagorean theorem to find the length of the diagonal of the rectangle.

c^2 = a^2 + b^2

c^2 = 74^2 + 42^2

c^2 = 5476 + 1764

c^2 = 7240

c = sqrt(7240)

c = 85

Answer: 85 ft

Answer:

1 1/4 hours

Step-by-step explanation:

1.Tom slept the most on the night he slept 8 2/4 hours.

2.Tom slept the least on the night he slept 7 1/4 hours

3.To determine the difference between the night he slept the most and the night he slept the least, we subtract the two values.

4.The difference between the night Tom slept the most and the night Tom slept the least is 1 1/4

So your answer is  1 1/4 hours! :)

Answer:

The building is 36 feet tall.

Step-by-step explanation:

6/3.5 = x/21

Cross multiply and you get:

3.5x = 126

Divide both by 3.5:

x=36

Be sure to mark me Brainliest!!!

each number and variable inside the parentheses has an exponent, in this case all of them are 1.

3^2 * x^2 + 4^2

9*x^2+16

final answer:

Answer:

1) SAS

2) not similar (not enough info to prove)

3) SAS

4) SSS

5) v = 8, u = 8

6) x = 8√3, y = 8

7) x = 8, y = 4√2

8) x = 10√2, y = 10

9) x = 3√2, y = 3√2

10) m = 6√3, n = 3√3

Step-by-step explanation:

Answer:

Approximately $14,760 to the nearest 10 dollars.

Step-by-step explanation:

After each year passes the car is worth 100-10 = 90% of the previous year.

So the equation is

A = 25000(0.90)^t     where A is the value of the car and t = the time in years.

So in 5 years:

A = 25000(0.90)^5

= 14762.25

Answer:

15

Step-by-step explanation:

I forgot all of my math vocab but basically because the two lines are parallel, those two angles are equal to each other, so 4x-30=2x

subtract 2x from both sides so that 2x-30=0

Now add 30 to both sides

2x=30

divide both sides by two

x=15

Answer:

The length is 8

The width is 8

Answer:

Step-by-step explanation:

this is about algebra, and my calculus prof. says that all people struggle with algebra, so work on it  :D

P = 32  ( the total )

use the formula

P = 2L + 2W

but we are told that L =3W also sooo put that into L

P = 2(3W ) + 2w

32 = 6W + 2W

32 = 8W

4 = W

so width is 4

and length is 12

:)

Answer:

106cm²

Method:

Draw a line separating the two rectangles so you have one with 5cm by 10cm and the other 4cm by 14cm.

5cm by 10cm:

area = 5 × 10 = 50cm²

4cm by 14cm:

area = (4 × 10) + (4 × 4) = 56cm²

area all together:

50cm² + 56cm² = 106cm²

Step-by-step explanation:

First we have to divide the figure into 2 rectangles.

Area of rectangle 1= L*B

9*4=36cm2

Area of rectangle 2=L*B

18*5=90cm2

Total area =36+90=126cm2

PLEASE FOLLOW ME AND MARK AS BRAINILIEST

Answer:

140,690

Step-by-step explanation:

89000*1.031^15=140692.188712

                         = 140,690

After 15 years, $141,689 would be the amount in the account.

Interest that compounded continuously to the principal amount. This interest rate provides exponential growth to a period of time.

Formula of continuous compound interest rate;

A = P[tex]e^{rt}[/tex],

where P is the principal amount, r is the interest rate and t is the time period.

Given:

David invested $89,000 in an account paying an interest rate of 3.1% compounded continuously.

Assuming no deposits or withdrawals are made.

P (principal) = $89,000.00

First, convert R as a percent to r as a decimal

r = R/100

r = 3.1/100

r = 0.031 rate per year,

Then solve the equation for A

A = P[tex]e^{rt}[/tex]

A = 89,000.00(2.71828[tex])^{(0.031)(15)}[/tex]

A = $141,689

Therefore, the amount is $141,689.

To learn more about the continuous compound interest;

https://brainly.com/question/18722165

#SPJ2

Answer:

The answer is "140".

Step-by-step explanation:

Calculating the average  cost:

[tex]= \frac{C(x)}{x}\\\\ = \frac{19600+500x+x^2}{x} \\\\ = \frac{19600}{x}+500 +x\\\\[/tex]

To minimize average cost we have to find x for wich A'(x)=0

[tex]A(x) = \frac{19600}{x}+500 +x \\\\A'(x) = -\frac{19600}{x^2}+1 \\\\0= -\frac{19600}{x^2}+1 \\\\\frac{19600}{x^2}=1 \\\\19600=x^2 \\\\x=140[/tex]

Answer:

x(x-4)(x+8)

Step-by-step explanation:

Factor.

x(x^2+4x-32)

x(x-4)(x+8)

Hi there! Your answers are listed below in the explanation.

Please see an explanation for a clear understanding to your problem.

Any questions about my answer and explanation can be asked through comments! :)

Step-by-step explanation:

[tex] \large \boxed{ {a}^{2} + {b}^{2} = {c}^{2} }[/tex]

First, find the missing value of hypotenuse by using Pythagorean Theorem which is in the box.

Given where a and b can be either adjacent or opposite and c-term is hypotenuse.

[tex] \large{ {8}^{2} + {15}^{2} = {c}^{2} } \\ 64 +225 = {c}^{2} \\ 289 = {c}^{2} \\ 17 = c[/tex]

Therefore, the hypotenuse is 17. Next, we are going to find a trigonometric ratio.

[tex] \large \boxed{ \mathsf{sin = \frac{opposite}{hypotenuse}}} \\ \large \boxed{ \mathsf{cos = \frac{adjacent}{hypotenuse}}} \\ \large \boxed{ \mathsf{tan = \frac{opposite}{adjacent}}}[/tex]

sin A means that A is our angle. Therefore, we focus on angle A for our calculation. Adjacent for sin A, cos A and tan A are 15. Opposite is 8 and Hypotenuse is 17.

Therefore,

[tex] \large{ \mathsf{sinA = \frac{8}{17}} } \\ \large{ \mathsf{cosA = \frac{15}{17}} } \\ \large{ \mathsf{tanA = \frac{8}{15}} }[/tex]

Next is sinB, cosB and tanB. That means we focus on angle B. Therefore, our adjacent for this would be 8. Opposite would be 15 and hypotenuse is the same which is 17.

[tex] \large{ \mathsf{sinB = \frac{15}{17}}} \\ \large{ \mathsf{cosB = \frac{8}{17}}} \\ \large{ \mathsf{tanB = \frac{15}{8}}}[/tex]

Answer:

A: 1.7

B: 1.3

C: -0.2

D: -0.8

E: -1.7

Step-by-step explanation: