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3 years ago

Solve.

Mathematics

1 answer:

adoni [48]3 years ago

5 0

6+(-2)+2•(-8)•42=6-2+(-16)•42=4+(-672)=4-672=-668

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Need help with this question

-Dominant- [34]

Answer:

Step-by-step explanation:

In a right triangle, the side opposite the right angle is the largest side as the right angle represents the largest angle in the triangle. Therefore, as 17.5 is opposite the right angle, we can say that AB²+10²=17.5², and √(17.5²-10²)=AB = 14.4

Using sohcahtoa, we can establish that

sin(∠C) = opposite/hypotenuse = 14.4/17.5, and

arcsin(14.4/17.5) = ∠C = 55°

Because the angles in a right triangle add up to 180 degrees, we can say that ∠A+∠B+∠C = 180°, so ∠A + 90 + 55 = 180 and ∠A = 35°

7 0

3 years ago

Debra purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Debra used her card on

miv72 [106K]

The answer is 47 minutes.

You basically imagine this: Debra has a phone card for $30. She used x minutes every 16 cents. You end up with $22.48.

30 - (0.16x) = 22.48

You can basically graph that equation and the x-intercept will show you your answer. x = 47

7 0

3 years ago

HELP!!! 10 POINTS OFFERED!!THIS IS MY LAST QUESTION!!

Sladkaya [172]

Answer:

A (-2,8) B (-1,5) C (-6,2)

A(-2,-7) B(-5,-8) C(-8,-3)

Step-by-step explanation:

x,y x,y x,y

A(7,-2) , B(8,-5) , C(3,-8)

translation (7-9),(-2+10) (8-9),(-5+10) ( 3-9),(-8+10)

(x-9) and (y+10) (-2,8) (-1,5) (-6,2)

when rotation 270 degrees counterclockwise around the origin:

A(x,y ) Then A'(-y,x) means switch x and y and make x negative

A(7,-2 ) rotation 270 degrees counterclockwise (-2,-7)

B(8,-5) to (-5,-8)

C(3,-8) to (-8,-3)

4 0

3 years ago

What is -1 11/12 in it’s simplest form

Dafna1 [17]

Answer: - 23/12

decimal -1.916

Step-by-step explanation:

3 0

3 years ago

9x+18=-20<br><br> what does X =

Marat540 [252]

Answer:

x=-4.22222

The 2 is repeating

Step-by-step explanation:

First you subtract 18 from both sides

9x=--38

Then divide both sides by 9

x=-4.22222

The 2 is repeating

6 0

3 years ago

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