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Fiesta28 [93]
3 years ago
15

1. Solve for y.

Mathematics
1 answer:
jarptica [38.1K]3 years ago
8 0
1. -5y - 9 = -y + 1
-4y = 10
y = -2,5
answer = B
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which complex number has a distance of √17 from the origin on the complex plane?a. 2 15ib. 17 ic. 20 - 3id. 4 - i
Rus_ich [418]
Let z=a+bi. |z| = \sqrt{a^2+b^2}, so:
|z_a| = \sqrt{0+15^2} = 15 \neq \sqrt{17} \\ |z_b| = \sqrt{0+17^2} = 17\neq \sqrt{17} \\ |z_c| = \sqrt{20^2+3^2} \ \textgreater \ \sqrt{20^2} = 20\ \textgreater \ \sqrt{17} \\\\ \boxed{|z_d| = \sqrt{4^2+1^2} = \sqrt{16+1} = \sqrt{17}}
4 0
4 years ago
Please help it’s due
vampirchik [111]

Answer:

x = 27.8, y = 35

Step-by-step explanation:

Angle D is equal to Angle A

Angle E is equal to Angle B

Angle F is equal to Angle C

So you can set those equal to each other:

2y - 5 = 65

2y = 70

y = 35

-------------------------

2x + y = 90.6

2x + 35 = 90.6

2x = 55.6

x = 27.8

6 0
4 years ago
If s(x) = 2 – x² and t(x) = 3x, which value is equivalent to (sof)(-7)?
mylen [45]

Answer:

- 439

Step-by-step explanation:

evaluate f(- 7) and substitute the value obtained into s(x)

f(- 7) = 3(- 7) = - 21 , then

s(- 21) = 2 - (- 21)² = 2 - 441 = - 439

6 0
2 years ago
Read 2 more answers
What’s the Final answer
Gelneren [198K]

Answer:

7) 25

8) 23

Step-by-step explanation:

4 0
4 years ago
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Mitch lives on the 20th floor of an apartment building. Every time he leaves, he rides a self-service elevator from the 20th flo
weeeeeb [17]

Answer:

He does that because he is short and his hand can't reach the 20th floor button

Step-by-step explanation:

Mitch does that simply because he is short.

When he is leaving, he doesn't need to reach the 20th floor button because the button is way taller than the reach of his hands whereas when he is returning he has to reach the 20th floor button but his hand can only reach the 15th floor button. Thus, he gets to the 15th floor and walks up the remaining 5 flights.

5 0
3 years ago
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