All categories

4 years ago

What expression is equivlennt to 3(x-2)

Mathematics

1 answer:

Allisa [31]4 years ago

5 0

Answer:

3 * (x-2)

this: * means times

When there isn't a space between a letter/number and a parenthesis, then it means to multiply.

You might be interested in

The ratio of number of boys to girls in a classroom is 6 to 5. If there are a total

timama [110]

Answer:

40 girls

Step-by-step explanation:

To get the number of girl students, we first do 48 divided by 6 to get 8. Then we do 8 x 5 to get 40.

4 0

3 years ago

Find sin θ and cos θ if tan θ= 1/4 and sin 0>0.

Serga [27]

Answer:

$\displaystyle \sin(\theta)= \frac{\sqrt{17}}{17}$

$\displaystyle \cos(\theta)= \frac{4 \sqrt {17} }{ 17 }$

Step-by-step explanation:

We want to find sin(θ) and cos(θ) given that tan(θ) = 1/4 and sin(θ) > 0.

First, since tan(θ) and sin(θ) are both positive, cos(θ) must be positive as well.

Recall that tangent is the ratio of the opposite side to the adjacent side.

Therefore, the hypotenuse is:

$h=\sqrt{4^2+1^2}=\sqrt{16+1}=\sqrt{17}$

So, with respect to θ, the opposite side is 1, the adjacent is 4, and the hypotenuse is √17.

Then it follows that:

$\displaystyle \sin(\theta)=\frac{1}{\sqrt{17}} = \frac{\sqrt{17}}{17}$

And that:

$\displaystyle \cos(\theta)= \frac{4}{\sqrt{17}} = \frac{4 \sqrt {17} }{ 17 }$

5 0

3 years ago

Margaret is saveing money for her sumergido vacation. Se calculates herstarting a Out is 0.4% of her total amount she wants to s

lubasha [3.4K]

Answer: 0.004 (you can ask Siri this question and get the same answer)

6 0

3 years ago

Robert opens an account with $600. The rate is 4% per year. How long does it take Robert to earn $72? It takes Robert years to e

Lera25 [3.4K]

Answer:

it takes Robert 3 years to get $72

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Find the exact volume of the cylinder. A: 14pi m^3 B: 28pi m^3 C: 56pi m^3 D: 112pi m^3

vivado [14]

Answer:

B: 28pi m^3

Step-by-step explanation:

r = 4/2 = 2 m

h = 7 m

Volume of cylinder

$= \pi {r}^{2} h \\ \\ = \pi \times {2}^{2} \times 7 \\ \\ = \pi \times 4 \times 7 \\ \\ = 28\pi \: {m}^{3}$

8 0

4 years ago