Factor each expression 1. 3n + 9 2. t² + 4t 3. 15 + 20x

1 answer:

4 0

1... 3 (n + 3)
2... t (t + 4)
3... 5 (3 + 4x)

The trick to all of these is finding common factors, then taking them out... IT's pretty easy once you get the hang of it.

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Use the figure to the right to find the missing lengths of the triangle.

pychu [463]

To find AB(x) and BC(y), you can do(there are multiple ways you can do this):

tan A = $\frac{y}{7}$

tan 60° = $\frac{y}{7}$ or (tan 60°) · 7 = y

tan 60° = $\frac{\frac{\sqrt{3} }{2} }{ \frac{1}{2} } = \sqrt{3}$

√3 · 7 = y

7√3 cm = y

sin B = $\frac{7}{x}$

sin 30° = $\frac{7}{x}$ or $x= \frac{7}{sin 30}$

sin 30° = $\frac{\frac{1}{2} }{1}$ = $\frac{1}{2}$

x = $\frac{7}{\frac{1}{2} } = 14$

x = 14 cm

AB = 14cm

BC = 7√3 cm

8 0

3 years ago

Could someone please show me how to figure this problem out?

elixir [45]

The baby blue whale weighs 30 pounds, since 120 divided by 40 is 30.

5 0

3 years ago

Paul wants a bike that cost $400. If he had saved 60% of this amount, how much had he saved.

enyata [817]

Hey!

To solve this problem, we'll first start by creating an equation.

Our Created Equation :

$\frac{400 x 60}{100}$

Now we'll solve it step by step to find the answer.

So we should begin by multiplying the to portion of our fraction.

400 x 60 = 24,000

Next, we divide our answer by 100, since that is the next step to our equation.

24,000 ÷ 100 = 240

So, our answer is...

Paul has already saved $240.00 of the $400.00 he must pay for a new bike.

Hope this helps!

- Lindsey Frazier ♥

4 0

3 years ago

How many solutions does the equation 3x − 7 = 4 + 6 + 4x have?

Valentin [98]

Answer:

it is two

Step-by-step explanation:

because it is two

5 0

2 years ago

Read 2 more answers

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