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oksano4ka [1.4K]
2 years ago
10

Select the correct answer.

Mathematics
1 answer:
Sonja [21]2 years ago
5 0

Answer:

B) 5 + 17i is your answer.

Step-by-step explanation:

In order to write this equation as a complex number in standard form, you must first simplify each term.

<em>Apple the distributive property.</em>

21 - 4i - 1 * 16 - (7i) + 28i

<em>Multiply -1 by 16.</em>

21 - 4i -16 - (7i) + 28i

<em>Multiply 7 by -1.</em>

21 - 4i - 16 - 7i + 28i

<em>Now simplify by adding terms :)</em>

<em>Subtract 16 from 21.</em>

5 - 4i - 7i + 28i

<em>Subtract 7i from -4i.</em>

5 - 11i + 28i

<em>Add -11i and 28i.</em>

= 5 + 17i

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Problem Page Ann will run more than 38 miles this week. So far, she has run 21 miles. What are the possible numbers of additiona
krok68 [10]
She has run 21 miles already. Let t be the number of additional miles added on. 

In total, she has run t+21 miles 

This is going to be set greater than 38 since "Ann will run more than 38 miles"

So we have this inequality

t+21 > 38

we solve for t by subtracting 21 from both sides

t+21 > 38
t+21-21 > 38-21
t+0 > 17
t > 17

The final answer is t > 17

which means that the possible additional number of miles she could run is anything larger than 17. So t = 18 is one possibility. 
8 0
3 years ago
I neeed help with this​
Alina [70]
Answer: Point C.
Because √300=17.3205=17.3 :)
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3 0
3 years ago
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62 divided by 8,090 ...Who dares to take on this challenge! Must show your work!
Fynjy0 [20]
Simple lol all you do is 

62 divided by 8,090

Answer is: <span>0.00766378244

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8 0
3 years ago
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F(a) =-3a + 3; Find f(10)
Slav-nsk [51]

Answer:

-27

Step-by-step explanation:

f(a) = -3a + 3

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3 0
2 years ago
Bella bought 3.2 meters of ribbon to decorate her pencil case. each meter cost $0.46. how much did the ribbon cost?
zlopas [31]

we know that

Each meter of ribbon cost \$0.46  

so

by proportion

Find the cost of 3.2 meters of ribbon

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therefore

<u>the answer is</u>

The ribbon cost \$1.472


8 0
2 years ago
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