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alina1380 [7]
2 years ago
9

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

ct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Perform the indicated operation.

Mathematics
1 answer:
Len [333]2 years ago
6 0

Answer:

In the operation, simplify

9-a² = (3-a)(3+a)

Factorize

4a²-4a-24-------------------divide each term by 4

a²-a-6-------------------------factorize

a²-3a+2a-6

a(a-3)+2(a-3)

(a+2)(a-3)

Factorize

a²-6a+9

a²-3a-3a+9

a(a-3)-3(a-3)

(a-3)(a-3)

Rewrite operation as

\frac{8}{(3-a)(3+a)} /\frac{(a+2)(a-3)}{(a-3)(a-3)}

Multiply by the recipricol

\frac{8}{(3-a)(3+a)} *\frac{(a-3)(a-3)}{(a+2)(a-3)}

cancel the similar terms

\frac{8}{(3-a)(3+a)} *\frac{(a-3)}{(a+2)}

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Polygon ABCD is translated to create polygon A′B′C′D′. Point A is located at (1, 5), and point A′ is located at (-2, 1). What is
never [62]

Answer:

The distance from B to B' is 5 units

Step-by-step explanation:

we know that

A translation is a rigid transformation, that means, the size and the shape of the pre-image is the same that the size and the shape of the image after the translation

so

The distance AA' will be equal to the distance BB'

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

we have

A(1,5) and A'(-2,1)

substitute

d=\sqrt{(1-5)^{2}+(-2-1)^{2}}

d=\sqrt{(-4)^{2}+(-3)^{2}}

d=\sqrt{25}

d=5\ units

therefore

The distance from B to B' is 5 units

3 0
3 years ago
What is the answer please give me the answer
Alex Ar [27]
69 and 83 hundredths
69.83 is the answer
3 0
3 years ago
Read 2 more answers
How much water should be added to 1 gallon of pure antifreeze to obtain a solution that is 25% ​antifreeze?
777dan777 [17]

Answer:

3 gallons.

Step-by-step explanation:

If you add three gallons of water to 1 gallon of antifreeze, then there are 4 gallons total. That means that 1/4 of the solution is antifreeze, and 1/4 is equal to 25%.

6 0
2 years ago
Read 2 more answers
Help with these questions!
LekaFEV [45]

Step-by-step explanation:

An inscribed angle is half the arc angle.

m∠MNQ = 80°/2

m∠MNQ = 40°

The angle between two chords is the average of the arc angles.

m∠AMB = (80° + 85°) / 2

m∠AMB = 82.5°

8 0
3 years ago
A right triangle has legs that measure 2 units and 5 units. What is the length of it's hypotenuse?
alina1380 [7]
Here's the equation:
2^2 + 5^2 = c^2
4 + 25 = C^2
c = 5.3851
5 0
3 years ago
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