Simplify.A.
–28xy

B.
–28

C.
28xy

D.
27

Answers

Answer 1

Answer:
Your attachment says: (-1/2) · (4x) · (-2) · (7y) · (-1)

Let's put together the
1st, 3rd, and 5th factors: (-1/2) · (-2) · (-1) = -1

So now we have    (-1) · (4x) · (7y)

Well       (4x) · (7y) = (4 · 7) · (x · y) = 28 · x · y

So all together we have    (-1) · (28 · x · y) = -28xy

Answer 2

Answer: $\left(-(1)/(2)\right)(4x)(-2)(7y)(-1)\n\n=\left(-(1)/(2)\right)(-2)(4)(7)(-1)(x)(y)\n\n=(1)(4)(7)(-1)(xy)\n\n=(28)(-1)(xy)\n\n=(-28)(xy)\n\n=\boxed{-28xy}\to\boxed{\boxed{A}}$

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Answers

Answer:

I think its 5 to the third (the second option). but I'm not sure. Im not the best with exponents.

It’s the third one (1/25) and the decimal form for it is 0.008 , Incase you wanted to know :p
Can you brainliest if I’m right ??

Find the measure of

Answers

Answer:

129

Step-by-step explanation:

If you are finding the answer of the hole thing you need to add 49+90

[(a+3)x8+26]:5=18 va multumesc frumos

Answers

$[(a+3)*8+26]:5=18 \n\n (a+3)*8+26=18*5 \n\n (a+3)*8+26=90 \n\n (a+3)*8=90-26 \n\n (a+3)*8= 64 \n\n a+3=64:8 \n\n a+3=8 \n\n a=8-3 \n\n \boxed{a=5}$

so [(a+3)8+26]/5=18
multiply out
[8a+24+26]/5=18
add
(8a+50)/5=18
bultiply both sides by 5
8a+50=90
subtract 50 from both sides
8a=40
divide both sides by 8
a=5

A cube has a surface area of 72 in2.Find the surface area of a scaled image with a scale factor of 1.5.

in2

Answers

so assuming scaled down it is
1:1.5 or
2:3
so
72 is the 3 units
divide 72 by 3
72/3=14
14 times 2=28

the surface area=28 in^2

Convert speed of 15 miles per hour to feet per second

Answers

Solutions

1 mile = 1.46667

15 miles per hour = 22 feet per second

15 miles per hour = 22 feet per second

Find the area of the circle. Round your answer to two decimal places, if necessary.

Answers

Final answer:

To find the area of a circle, use the formula A = πr^2. Identify the radius and substitute it into the formula to calculate the area. Round the answer to two decimal places if necessary.

Explanation:

To find the area of a circle, you can use the formula A = πr^2, where A represents the area and r represents the radius of the circle. Start by identifying the radius of the circle, which is the distance from the center to any point on the circumference. Once you have the radius, substitute its value into the formula and calculate the area. Make sure to round your answer to two decimal places if necessary. For example, if the radius of the circle is 5 units, the area would be A = 3.14 * 5^2 = 3.14 * 25 = 78.5 square units.