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pav-90 [236]
3 years ago
11

1. Solve this 1-step equation: a + 7 = -10 *

Mathematics
2 answers:
katrin2010 [14]3 years ago
6 0

Answer:

a = -17

Step-by-step explanation:

-17 + 7 = -10

Helga [31]3 years ago
6 0

Answer: -17

Step-by-step explanation:

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(3-4i)(-2-21) multiply
evablogger [386]

Answer:

-69 +92 i (here 'i' is imaginary value)

Step-by-step explanation:

step:-

Given (3-4 i)(-2-21)

on multiplication, we get

(3-4 i)(-2-21) = 3(-2) -3(21) - 4 i (-2) +4 i(21)

                    = -6 -63 + 8 i +84 i

                    = -69 +92 i

-69 + 92 i is a complex number.

real part x = -69

imaginary part y = 92

6 0
4 years ago
Help -8(9n-10) -20 a. 90n+54 b. -72n+60 c. -17n – 80 d. -160n
Anna [14]

Answer:

1)  -8(9n-10) - 20

-72n + 80 - 20

-7n + 60

Can't factor

2) 90n+54

18(5n+3)

3) -72n+60

-12(6n-5)

4) -17n - 80

Can't factor

5) -160n

Can't factor

3 0
3 years ago
Read 2 more answers
Not troll! Please help, will give brainliest! Explain your answer and how you got it.
Mkey [24]

Answer:

33  7/9 or 304/9

Step-by-step

7 0
3 years ago
The ratio of the height to the width of a packaging label is 5 to 19. If the height of the label is 1.5 inches, What is the widt
zhuklara [117]

Answer

Find out the  what is the width .

To prove

Let us assume that x be the scalar multiple of the height and width of the packaging label .

As given

The ratio of the height to the width of a packaging label is 5 to 19.

If the height of the label is 1.5 inches .

Than the equation becomes

5x = 1.5

x = \frac{1.5}{5}

x = 0.3

Than

The width of a packaging label = 19 × 0.3

                                                    = $ 5.7

Therefore the width of the packaging label is $ 5.7 .

 

8 0
4 years ago
The graph shows the cost for each lawn that is mowed.
den301095 [7]
The answer will be option B. 
8 0
3 years ago
Read 2 more answers
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