All categories

3 years ago

-2 (-7k + 4) + 9 = -13

2 answers:

5 0

<span>-2 (-7k + 4) + 9 = -13
Use distributive property
14k - 8 + 9 = -13
Add 8 to both sides
14k + 9= -5
Subtract 9 from both sides
14k= -14
Divide 14 on both sides
Final Answer: k= -1</span>

svp [43]3 years ago

3 0

The answer is -1.

-2(-7k + 4) = -13 - 9

-2(-7k + 4) = -22

-7k + 4 = -22/2

-7k + 4 = 22/2

-7k + 4 = 11

-7k = 11 - 4

-7k = 7

k = -1.

You might be interested in

23 + 12 ×13 ÷2 Math homework

Contact [7]

Answer:

101 is your answer

Step-by-step explanation:

Remember to follow PEMDAS & the left->right rule.

First, multiply 12 with 13:

12 x 13 = 156

Next, divide 156 with 2

156/2 = 78

Finally, add 23

78 + 23 = 101

101 is your answer

5 0

3 years ago

Read 2 more answers

What is percent increase from 2 to 3

Tanzania [10]

(3-2)/2= 50% increase

5 0

4 years ago

Read 2 more answers

2(2x+2)=7x+2-3x+2<br> solve

Ronch [10]

Answer:

All real numbers make this answer true: so x= all real numbers

Step-by-step explanation:

5 0

3 years ago

HELP ME PLEASEEEEE PLEASEEEEE

viktelen [127]

Answer:

5.46π cm³

Step-by-step explanation:

Volume of sphere= 4/3πr³

= 4/3×π×(1.6)³ cm³

=5.46π cm³

hope this helped you!

5 0

3 years ago

Tan ^-1 (-1). enter your answer in radians

Assoli18 [71]

Answer:

$\theta=\frac{3\pi}{4},\theta=\frac{7\pi}{4}$

Step-by-step explanation:

we are given

$tan^{-1}(-1)$

Let's assume angle as theta

$\theta =tan^{-1}(-1)$

so, we get

$tan(\theta)=-1$

now, we can use unit circle and find theta

and we get

$\theta=\frac{3\pi}{4},\theta=\frac{7\pi}{4}$

So, solution is

$\theta=\frac{3\pi}{4},\theta=\frac{7\pi}{4}$

8 0

3 years ago