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3 years ago

Factor a 3 - 3 + 3a 2 - a.

Mathematics

2 answers:

Nastasia [14]3 years ago

6 0

Answer:

(a - 1)(a + 1)(a + 3)

Step-by-step explanation:

Troyanec [42]3 years ago

5 0

(a - 1)(a + 1)(a + 3)

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What is the value of the expression 30n when n=2

iris [78.8K]

Hey there!
Since it's 30n, 30 is the coefficient and it's being multiplied by n.
We plug in n.
30(2) =
60
Hope this helps!

8 0

3 years ago

Read 2 more answers

Gavin likes biking. This week his goal is to bike about 65 total miles over four days. Each day he wants to ride 1.5 times as fa

IRISSAK [1]

Step-by-step explanation:

let the first-day ride be x

Then the second-day ride will be =1.5 x

The third-day ride will be=1.5(1.5x)

The Fourth-day ride will be=1.5*1.5(1.5x)

hence for the four days the distance covered is

65=x+1.5x+1.5*1.5x+1.5*1.5*1.5x

65=x+1.5x+2.25x+3.375x

65=8.125x

divide both sides by 8.125 we have

x=65/8.125

x=8mile

the first-day ride be x=8miles

the second-day ride will be =1.5 x =1.5*8= 12miles

The third-day ride will be=1.5(1.5x) = 18miles

The Fourth-day ride will be=1.5*1.5(1.5x) = 27miles

5 0

3 years ago

I need help with this problem

Brilliant_brown [7]

I dont quite know whits being asked, but the missing value is 30

6 0

3 years ago

Read 2 more answers

Find the length of the leg a of a right triangle with leg length b = 21.5 inches and the hypotenuse c = 31.9 inches. Use a calcu

mylen [45]

The length of the leg a of the right triangle is obtained by applying the Pythagorean theorem which is given as:

$\text{opposite}^2+adjacent^2=hypothenus^2$

Thus, we have that:

$a^2+b^2=c^2$

Given that b = 21.5 inches and c = 31.9 inches, we now have:

$a^2+(21.5)^2=(31.9^2)$ $a^2+462.25=1017.61$ $a^2=1017.61-462.25$ $a^2=555.36$ $\begin{gathered} a=\sqrt[]{555.36}=23.57 \\ \Rightarrow a=23.6\text{ inches (to one decimal place)} \end{gathered}$

Therefore, the length of the leg a of the right triangle is 23.6 inches

4 0

1 year ago

How do I graph in R for the following inequality?<br> -3 ≤ xV-6 > x

dedylja [7]

Answer:

I don't know if this will help you or not and I'm sorry if it doesn't.

Have a great day! :)

(The graph is what I got when I graphed the equation.)

4 0

2 years ago