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3 years ago

(2-5)^2-(4×5^2)what's the answer?show work

Mathematics

1 answer:

Bond [772]3 years ago

4 0

Answer: -91

Step-by-step explanation:

(2-5)^2-(4*5^2)

Follow the order of operations.

2-5=-3 Which uses the property of parentheses

(-3)^2-(4*5^2)

(-3)^2=9 which uses the property of exponents

5^2=25 which uses the property of exponents

9-(4*25)

4*25=100 which uses the property of multiplication

=9-100 which uses the property of subtraction

=-91

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X/a+y/a=1 solve for y

IRISSAK [1]

X/a=0.5
y/a=0.5
X+y/a
a=2
X=1
y=1
x+y=a(1)
1+y=2(1)
y=2-1
y=1

4 0

3 years ago

Select the correct answer from each drop-down menu.

vazorg [7]

Answer:

Step 1: Distribute $-2$ to $5x$ and $8$

Step 2: Subtract from both sides of the equation $6x$

Step 3: Add to both sides of the equation $16$

Step 4: Divide both sides of the equation by $-16$

Step-by-step explanation:

Step 1: Apply the Distributive Property. Then you must distribute $-2$ to $5x$ and $8$

Then:

$-2(5x+8)=14+6x\\\\-10x-16=14+6x$

Step 2: You must apply the Subtraction property of Equality and subtract $6x$ from both sides of the equation. Then:

$-10x-16-6x=14+6x-6x\\\\-16x-16=14$

Step 3: You must apply the Addition property of Equality and add $16$ to both sides of the equation. Then:

$-16x-16+16=14+16\\\\-16x=30$

Step 4: You must apply the Division property of Equality and divide both sides by $-16$ . Then:

$\frac{-16x}{-16}=\frac{30}{-16}\\\\x=\frac{30}{-16}\\\\x=-\frac{15}{8}$

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3 years ago

Jan made 17 baskets out of 25 shots she took. What was the percent of baskets she made?

scoundrel [369]

Since 100 is 25*4. Then you would multiply 17 by 4. To get your answer. 68%

Hope this helps!

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3 years ago

Read 2 more answers

Find the area of a regular hexagon with a radius of 6 in

s344n2d4d5 [400]

Hexagon is a total of 6 triangle
Let find area of one triangle the multiplying with 6
Area of a triangle is A=1/2bh
We know b=6 and h= (6(square root of 3))/2
A= 1/2x6x(6(square root of3))/2=9(square root of 3)
Where square root of 3= 1.732
Area of a triangle=9x1.732 =15.588
Area of Hexagon equals 6 area of triangle so
Area of Hexagon= 6x 15.588=93.53

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3 years ago

The area of a circle is 49π m2. What is the radius?

olga55 [171]

Answer: r= 3.95

Explanation: A=πr2

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3 years ago

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(2-5)^2-(4×5^2)what's the answer?show work​

(2-5)^2-(4×5^2)what's the answer?show work