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3 years ago

Find the circumference and the area of a circle with radius 9 .

Mathematics

1 answer:

Eduardwww [97]3 years ago

6 0

C=2(pi)r use this equation with 9 in place of r

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3(x-2)+2(x+1)=-14<br> plz show work

Rom4ik [11]

Hello!

First, let's write the problem.
$3\left(x-2\right)+2\left(x+1\right)=-14$
Apply the distributive property on the left side of the equation.
$=3x-6+2x+2$
Add like terms.
$=5x-4$
Let's plug that in into the original equation.
$5x-4=-14$
Add 4 to both sides.
$5x-4+4=-14+4$
$5x=-10$
Divide both sides by 5.
$\frac{5x}{5}=\frac{-10}{5}$

Our final answer would be,
$x=-2$

You can feel free to let me know if you have any questions regarding this!
Thanks!

- TetraFish

5 0

3 years ago

Read 2 more answers

Please help :)

slava [35]

For a system of equations such as this, add both of the equations together. The d values will cancel each other out, making 2e=-4. This means that e=-2. If you plug this into one of the equations, you will have d + (-2) = 1. Isolate the variable by adding -2 to both sides: d=3. Written in the format described above (d,e), your answer is (3, -2).

6 0

3 years ago

Which equation represents a line that passes through (4, 1/3) and has a slope of 3/4

andrew-mc [135]

Answer:

y = 3/4x - 8/3

Step-by-step explanation:

y = 3/4x + b

1/3 = 3/4(4) + b

1/3 = 3 + b

-8/3 = b

y = 3/4x - 8/3

8 0

3 years ago

Please help 10 points asap

hoa [83]

Answer:

a) 7

b) -8.2

c) 0

d) -7

e) -1 3/4

f) 121

Step-by-step explanation:

Just put the opposite for each one. The absolute value is the distance away from 0.

3 0

3 years ago

Identify the pattern then write the next three terms in each sequence 2,8,32,128

Allisa [31]

Step-by-step explanation:

the difference is the previous term multiplied by 4 to get the next term

2,8,32,128,512,2048,8192

Hope that helps :)

3 0

3 years ago