3 years ago

I need help on 18, thank you!

1 answer:

5 0

I think the answers are: a = 60°, b = 45°, c = 36°.

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kolezko [41]

Answer:

a = 3

Step-by-step explanation:

Calculate the distance d using the distance formula and equate to 4

d = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }$

with (x₁, y₁ ) = (2, - 1) and (x₂, y₂ ) = (2, a)

d = $\sqrt{(2-2)^2+(a+1)^2}$ = $\sqrt{0+(a+1)^2}$ = $\sqrt{(a+1)^2}$ = a + 1 then

a + 1 = 4 ( subtract 1 from both sides )

a = 3

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3 years ago

GaryK [48]

Multiply 64 and 12 three times and 64 ×12=? then ?×3=?

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4 years ago

mart [117]

Answer:

4.98

Step-by-step explanation:

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3 years ago

Klio2033 [76]

1. 5 and E, 6 and F, 7 and D, 8 and A, 9 and G

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3 years ago

Lubov Fominskaja [6]

Answer:

20%

Step-by-step explanation:

(60 - 48) / 60 = 0.2 (20%)

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4 years ago