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rewona [7]
3 years ago
11

X Combine like terms: b + 4b2 - 8 + 3b - 2b2

Mathematics
1 answer:
emmainna [20.7K]3 years ago
4 0

Answer:

2b^{2} + 4b - 8

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sergiy2304 [10]

Answer:

the answer is what ever you want it to be

Step-by-step explanation:

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6 0
3 years ago
Question 1 of 10
goblinko [34]

Answer:

<h3>22 ÷ 0 = 0 </h3>

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6 0
2 years ago
Through:(3,-1),slope=-1
Wewaii [24]

Answer:

y = -x + 2

Step-by-step explanation:

Use the point-slope formula y - k = m(x -h):

y - [-1] = -1(x - 3), or

y + 1 = -x + 3, or

y = -x + 2

5 0
3 years ago
The oldest child in a family of four children is twice as old as the yougest. The two middle children are 12 and 16 years old. I
Vladimir [108]
Four children average is 15.25 so ages must add to 61
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6 0
2 years ago
PLEASE PLEASE HELP ​
nekit [7.7K]

Answer:68.3 degrees

Step-by-step explanation:

The diagram of the triangle ABC is shown in the attached photo. We would determine the length of side AB. It is equal to a. We would apply the cosine rule which is expressed as follows

c^2 = a^2 + b^2 - 2abCos C

Looking at the triangle,

b = 75 miles

a = 80 miles.

Angle ACB = 180 - 42 = 138 degrees. Therefore

c^2 = 80^2 + 75^2 - 2 × 80 × 75Cos 138

c^2 = 6400 + 5625 - 12000Cos 138

c^2 = 6400 + 5625 - 12000 × -0.7431

c^2 = 12025 + 8917.2

c = √20942.2 = 144.7

To determine A, we will apply sine rule

a/SinA = b/SinB = c/SinC. Therefore,

80/SinA = 144.7/Sin 138

80Sin 138 = 144.7 SinA

SinA = 53.528/144.7 = 0.3699

A = 21.7 degrees

Therefore, theta = 90 - 21.7

= 68.3 degees

8 0
3 years ago
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