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erma4kov [3.2K]
3 years ago
13

Solve the inequality. 2(4 + 2x) ≥ 5x + 5?

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
5 0
3 ≥ x. distribute the 2 to the 4 and 2x. then subtract the 4x from the 5x. subtract 5 from 8
                         

mezya [45]3 years ago
5 0
See attached image for the answer.

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Two lines intersect to form angles 1, 2, 3, and 4 as given. The measure of ∠3 is 38°. What is the measure of ​∠2​ ?
ss7ja [257]

Answer:

142° is the measure of angle 2.

Step-by-step explanation:

When two lines intersect, they make four angles. The angles facing each other are equal.

Let's say that two lines a and b intersected each other to make angles 1,2,3 and 4 respectively.

The measure of angle 3 = 38 degrees.

We know that the angle 1 is against angle 3 and is equal to 38.

Also Angle 2 and Angle 4 are also against each other and are equal let's say equal to x degrees.

Now, the sum of all four angles = 360 degrees

∠1 + ∠2+ ∠3 + ∠4 = 360°

38° + x + 38° + x = 360°

2x = 360° - 76°

2x = 284°

x = 142°

Hence, ∠2 = 142°

3 0
3 years ago
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Evaluate 7m + 3mn when m=8 and n=14
Murrr4er [49]

Answer:

392

Step-by-step explanation:

7(8) + 3(8)(14)

56 + 336

=392

*Brackets mean to multiply.

3 0
3 years ago
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Step-by-step explanation:

6 0
2 years ago
Explain how to verify that 3(2x + 5) = 9 + 3x and x = –2 are equivalent equations.
aniked [119]

3 times (2x + 5) is 6x + 15.

6x + 15 = 9 + 3x.

Group by like terms. 6 = -3x

Divide to get x by itself. 6/-3 = -2

Thus -2 = x

6 0
3 years ago
The Pythagorean Theorem can be applied to what kind of triangles?
ololo11 [35]
Right triangles. This only works if it's a right triangle, cuz right triangles have hypotenuses.
7 0
3 years ago
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