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raketka [301]
3 years ago
9

PLEASE HELP Simplify the expression x^2 + 3x - 28/ x^2 - 7x + 12 Show your work.

Mathematics
1 answer:
vitfil [10]3 years ago
7 0

\frac{{x}^{2}  + 3x - 28}{ {x}^{2}  - 7x + 12}  \:  \: can \: be \: simplfied \: to \:  \\  \\  \frac{(x + 7)(x - 4)}{(x - 3)( x - 4)}
Cancel out the ones alike
\frac{ x + 7}{x - 3}  \: is \: your \: final \: answer
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Refer to the figure below. If m<60 degrees l, find the measure of the other angles. Show your work(or explain) to receive ful
gladu [14]
All of the angles combined =360 degrees

Vertical angles are congruent, so if angle 1 = 60, so does angle 3

Logically we have to find the measure of angle 4 and angle 2 combined and divide by 2

60 + 60 = 120

360 - 120 = 240

240 / 2 = 120

angle 4 = 120
angle 2= 120

angle 3 = 60

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3 years ago
Andy is hanging wallpaper in his kitchen. He is able to cover of the walls in the room using 6 rolls of wallpaper. What is the n
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3 years ago
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M
Alona [7]

Based on the coordinates of triangle RST, we can infer that triangle RST is <u>not a right-angled triangle. </u>

<h3>Is triangle RST a right-angled triangle?</h3>

For this to be a right-angled triangle, the Pythagoras theorem has to apply where:

Largest side² = Side A² + Side B²

Lengths of the triangle:

RS² = (4 - 2)² + (4 - 3)²

= 5

ST² = (5 - 4)² + (0 - 9)²

= 17

TR² = (2 - 5)² + (3 - 0)²

= 18

We can see that:

18 ≠ 17 + 5

This is therefore not a right-angled triangle.

Find out more on the Pythagoras theorem at brainly.com/question/343682.

#SPJ9

6 0
2 years ago
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A spherical ball with a volume of 972π in.3 is packaged in a box that is in the shape of a cube. The edge length of the box is e
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Answer:

V = 4/3 x pi x r^3

972 x pi= 4/3 x pi x r^3

729 = r^3

The cubic root of 729 is 9 because 9 x 9 x 9 = 729.

The radius is 9 inches, and the diameter is 18 inches.

The volume of the box is 18 in x 18 in x 18 in or 5832 in.³.

Step-by-step explanation:

7 0
3 years ago
Find the area of A circle whose diameter is 8.3m round to the nearest tenth
koban [17]
D=8.3

8.3/2 = 4.15


R=4.15



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HOPE THIS HELPS
6 0
3 years ago
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