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2 years ago

Simplify. -4 - n - 4n + 15

2 answers:

4 0

-4-n-4n+15
= -4 + -n + -4n + 15
Combine like terms:
-4+ -n + -4n + 15
= (-n + -4n) + (-4 + 15)
Your final answer is -5n + 11!

Luden [163]2 years ago

3 0

11 - 5n.. the 'n's combine and so do the numbers... If I remember...

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What is 5.704 expressed to two decimal places?

Rufina [12.5K]

I’m pretty positive it is just 5.70 you just take out the 4.

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2 years ago

What is a factor of 15xy-45x-6y+18? A. Y-2 B. 5x-3 C. 5x-2 D. Y-6

AfilCa [17]

Factor the following:
15 x y - 45 x - 6 y + 18
Factor 3 out of 15 x y - 45 x - 6 y + 18:
3 (5 x y - 15 x - 2 y + 6)
Factor terms by grouping. 5 x y - 15 x - 2 y + 6 = (5 x y - 2 y) + (6 - 15 x) = y (5 x - 2) - 3 (5 x - 2):
3 y (5 x - 2) - 3 (5 x - 2)
Factor 5 x - 2 from y (5 x - 2) - 3 (5 x - 2):
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2 years ago

Can anyone do these? Thanks.

user100 [1]

1. -1, 2,8,11

plug the values into the equation and solve

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3 years ago

Identify the slope and y-intercept of y=-5x

Alika [10]

The slope is 5.
And the y-intercept is 0.

Hope I helped! <3

4 0

3 years ago

In triangle ABC, cos A =

nikitadnepr [17]

The other expression that has a value of $\frac{7}{25}$ is A) sin B.

Step-by-step explanation:

Step 1:

$sin\theta = \frac{oppositeside}{hypotenuse} ,$ $cos\theta = \frac{adjacentside}{hypotenuse} ,$ $tan \theta = \frac{opposite side}{adjacent side} .$

For angle B, the opposite side measures 7 units, the adjacent side measures 24 units and the hypotenuse measures 25 units.

$sinB= \frac{oppositeside}{hypotenuse} = \frac{7}{25} ,$ $tan B = \frac{opposite side}{adjacent side} = \frac{7}{24} ,$ $cosB = \frac{adjacentside}{hypotenuse} = \frac{24}{25}.$

Step 2:

For angle A, the opposite side measures 24 units, the adjacent side measures 7 units and the hypotenuse measures 25 units.

$tan A = \frac{opposite side}{adjacent side} = \frac{24}{25} .$

Step 3:

tan C cannot be determined as C is the right angle. The opposite side and hypotenuse of the triangle would be the same.

So sin B also has a value of $\frac{7}{25}.$ This is option A.

7 0

3 years ago