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slavikrds [6]
3 years ago
11

Solve for a. 4/a+4 =-1/a+9

Mathematics
1 answer:
Bad White [126]3 years ago
5 0

Answer:

a = -8

Step-by-step explanation:

you can solve this proportion by cross-multiplying:

4(a + 9) = -1(a + 4)

now distribute to eliminate parentheses

4a + 36 = -1a - 4

5a + 36 = -4

5a = -40

a = -8

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UkoKoshka [18]
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5 0
3 years ago
How many dimensions does a point in space have
Andreas93 [3]

Hello, hope you are having a wonderful day.

A point has 0 dimensions. It has no length, width, or depth.

So any point in space has 0 dimensions.

Now, a line has 1 dimension.

Rectangles, squares and other shapes have 2 dimensions.

Cylinders, cubes, cones and other figures have 3 dimensions.

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8 0
2 years ago
The espression 4x^2-4x-120 is equivalent to?
Vadim26 [7]
Glad you know how to use the ^ feature :) it helps alot!

Answer: <span><span>4<span>(<span>x<span>−6</span></span>)</span></span><span>(<span>x+5</span>) </span></span>
5 0
3 years ago
PLEASE ANSWER ASAP WORTH 100 points get it right please
Trava [24]

Answer:

See below.

Step-by-step explanation:

Part A:

triangle QPR and triangle PSR are similar

Part B:

Triangle QPR is a right triangle with right angle QPR.

Triangle SPR is a right triangle with right angle PSR.

Angle QPR of triangle QPR corresponds to and is congruent to angle PSR of triangle PSR.

Angle R of triangle QSR corresponds to and is congruent to angle R of triangle PSR.

The similar triangles by AA Similarity are

triangle QPR and triangle PSR

Part C:

QR/PR = PR/SR

16/PR = PR/4

PR² = 16 * 4

PR² = 64

PR = 8

8 0
3 years ago
Based on her results, what is the probability that two students were randomly picked and the first one chose romance and the sec
Alexxx [7]
18/28

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18/28 is your answer
6 0
2 years ago
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