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Lina20 [59]
3 years ago
5

9ab + 3b2 – 7b2 + 8ab - 12

Mathematics
1 answer:
mr Goodwill [35]3 years ago
7 0

Answer:

35ab-12

Step-by-step explanation:

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5. Simplify the expressions below by combining like terms<br> a) 4 + x + 3x + 2x - 2
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Answer:

6x + 2

Explanation:

4 + -2 = 2 and x + 3x + 2x = 6x

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3 years ago
If 6:2=8:x, then<br><br> 6x = 16<br> 6x = 10<br> 2x = 48<br> 2x = 14
Talja [164]
The answer is 6x = 16
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3 years ago
PLSS HELP ME WITH ALL 3 I NEED THIS ASAP!! PLS
iragen [17]

1) angle 2 = angle 4

115 = 3x + 16

115 - 16 = 3x

99 = 3x

x = 33

2) angle 2 + angle 5 = 180 degrees

115 + angle 5 = 180

angle 5 = 180 - 115

angle 5 = 65 degrees

3) Angle 1 is equal to 120 degrees

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2 years ago
Find the equation of a circle that has its center at (-4, 3) and has a radius of 5. (x + 4) 2 + (y - 3) 2 = 25
Andreas93 [3]

Answer:

(x+4)^2 + (y-3)^2 = 25

Step-by-step explanation:

You can use the center of a circle to write an equation in vertex form. Vertex form is (x-h)^2+(y-k)^2 = r^2 and the vertex is (h,k). Notice (h,k) are the opposite sign in the equation then as the point.

Here h = -4 and k = 3. Substitute these values and the value r = 5.

(x--4)^2 + (y-3)^2 = 5^2\\(x+4)^2 + (y-3)^2 = 25

3 0
3 years ago
In the triangle below, what is the sine of 30°?
zlopas [31]

Answer:

There's no picture. Is it D.√3 / 2

Step-by-step explanation:

5 0
4 years ago
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