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castortr0y [4]
3 years ago
9

Simplifying Rational Expressions

Mathematics
1 answer:
Evgen [1.6K]3 years ago
4 0
B^-2 / b^-3  = b^(-2-(-3) = b^1  = b

answer is d
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Algebra 2
olga55 [171]

Answer:

=5

Step-by-step explanation:

-7-6(-2)

-7+12

=5

sorry didn't read it right

4 0
4 years ago
Can someone help me on this
Ierofanga [76]

1/2 of angle D is given as 32 degrees.

The 3 inside angles need to add up to 180 degrees.

Angle B is a right angle, which is 90.

Angle C = 180 - 90 - 32 = 58 degrees.

8 0
4 years ago
What is the area of the parllelogtam shown below
Umnica [9.8K]
<h3>Answer: 16 square units</h3>

Let x be the height of the parallelogram. Right now it's unknown, but we can solve for it using the pythagorean theorem. Focus on the right triangle. It has legs a = 3 and b = x, with hypotenuse c = 5

a^2 + b^2 = c^2

3^2 + x^2 = 5^2

9 + x^2 = 25

x^2 = 25-9

x^2 = 16

x = sqrt(16)

x = 4

This is a 3-4-5 right triangle.

The height of the parallelogram is 4 units.

We have enough info to find the area of the parallelogram

Area of parallelogram = base*height

Area of parallelogram = 4*4

Area of parallelogram = 16 square units

Coincidentally, the base and height are the same, which isn't always going to be the case. The base is visually shown as the '4' in the diagram. The height is the dashed line, which also happens to be 4 units long.

6 0
3 years ago
A used car has a value of $15,250 when it is purchased in 2012. The value of the car decreases at a rate of 7.5% per year. Write
horrorfan [7]
7.5% is 3/40. The equation is y=15250(1-3/40)ˣ=15250(37/40)ˣ.
When x=8 this becomes $8173.42.
3 0
3 years ago
HELP!!!
Jobisdone [24]

Answer:

16 is the number of quarters and 14 is the number of dimes

Step-by-step explanation:

we know that

1\ dime=\$0.10

1\ quarter=\$0.25

Let

x-----> the number of dimes

y------> the number of quarters

we know that

0.10x+0.25y=5.40 -----> equation A

x+y=30 ----Isolate the variable y

y=30-x -----> equation B

Substitute equation B in equation A

0.10x+0.25(30-x)=5.40      

0.10x+7.5-0.25x=5.40

0.25x-0.10x=7.5-5.40

0.15x=2.1

x=14\ dimes

Find the value of y

y=30-x

y=30-14=16\ quarters

therefore

16 is the number of quarters and 14 is the number of dimes

8 0
3 years ago
Read 2 more answers
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