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4 years ago

What is the solution to this equation x-7=18

Mathematics

1 answer:

inna [77]4 years ago

4 0

Answer:

Step-by-step explanation:

move all numbers to one side

x=18+7

(remember when moving, a negative turns into a positive and a positive turns into a negative)

x=25

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Here are the scores that a group of teenagers earned on a driver’s education test.

svet-max [94.6K]

176 and 180 all the other numbers are good

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3 years ago

Verifying Trig Functions

anzhelika [568]

Answer:

The answer to your question is below

Step-by-step explanation:

csc α - cot α = $\frac{sin \alpha }{1 + cos \alpha }$

Work with the left part

$\frac{1}{sin\alpha } - \frac{cos \alpha }{sin \alpha}$

Simplify

$\frac{1 - cos\alpha }{sin\alpha }$

Multiply by the reciprocal

$\frac{1 - cos\alpha }{sin \alpha } x \frac{1 + cos\alpha }{1 + cos\alpha }$

Simplify

$\frac{1 - cos^{2}\alpha}{sin\alpha (1 + cos\alpha)}$

Remember that

sin²α = 1 -cos²α

Substitute the previous equation

$\frac{sin^{2}\alpha }{sin\alpha(1 + cos\alpha ) }$

Simplify

$\frac{sin\alpha}{1 + cos \alpha}$

The identity i proved.

5 0

4 years ago

How to graph -x + 2y = 6

larisa86 [58]

In order to graph the equation, you need some coordinates,
So, put x = 0,
2y = 6. y = 3. Coordinate = (0, 3)

Now, put y = 0,
-x = 6
x = -6 Coordinate (-6, 0)

In short, Just mark that two points and draw a line, graph is done

Hope this helps!

3 0

3 years ago

Which of the following expressions is/are equivalent to 16x + 8-2?

sasho [114]

B. 24x2 is the correct answer

8 0

3 years ago

Write an equation for when slope =-3 and y-intercept = 36

Elenna [48]

Answer:

-3x+36

Step-by-step explanation:

the slope is -3, so just add an x.

the y intercept is 36

put them a together and you get -3x+36

6 0

3 years ago

Read 2 more answers