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2 years ago

2. Vera is half as old as Chuck. Write an expression in terms of x that represents her age.

Mathematics

1 answer:

Mariulka [41]2 years ago

5 0

Answer:

y=x1/2

Step-by-step explanation:

y = Vera

x = Chuck

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The sum of the measures of angle M and angle R is 90°.

denis23 [38]

Answer:

x = 5

Step-by-step explanation:

We have: The sum of the measures of angle M and angle R is 90°

M + R = 90°

M = (5x + 10)°

Plug M into (1)

the equation: (5x + 10)° + R = 90° (2)

R=55° into (2)

(5x + 10)° + 55° = 90°

5x + 10 + 55 = 90

5x + 65 = 90

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2 years ago

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3 years ago

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Write (x+7)(x−2) as a sum

Dennis_Churaev [7]

Answer:

x^2+5x-14

Step-by-step explanation:

you multiply both equations so that you get:

x^2-2x+7x-14

and then you simplify it to:

x^2+5x-14

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2 years ago

What are the solutions to the quadratic equation (5y +6) 2= 24?

boyakko [2]

Answer:

$y=-2.18,-0.22$

Step-by-step explanation:

We have been given the equation

$(5y+6)^2=24$

Take square root both sides. When ever we take square root, we include plus minus sign

$\sqrt{(5y+6)^2}=\pm\sqrt{24}\\\\5y+6=\pm2\sqrt6$

Now, subtract 6 to both sides of the equation

$5y=-6\pm2\sqrt6$

Divide both sides by 5

$y=\frac{1}{5}(-6\pm2\sqrt6)$

$y=\frac{1}{5}(-6+2\sqrt6),y=\frac{1}{5}(-6-2\sqrt6)$

In decimal we have

$y=-2.18,-0.22$

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3 years ago

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