3 years ago

Combine like terms: 2r + r² – 4 + r Show Work Pls

Mathematics

1 answer:

klasskru [66]3 years ago

4 0

Answer:

r^2+3r-4

Step-by-step explanation:

combine like terms:

2r+r

vvvv

3r+r^2-4

rearrange terms:

r^2+3r-4

You might be interested in

Each base in this right prism-like figure is a semicircle with a radius of 7 cm.

zheka24 [161]

Answer:490pi

Step-by-step explanation:just trust me

5 0

3 years ago

John is interested in purchasing a multi-office building containing five offices. The current owner provides the following proba

Elenna [48]

Answer:

Option B.

Step-by-step explanation:

The given table is:

Number of Lease Offices : 0 1 2 3 4 5

Probability : 5/18 1/4 1/9 1/18 2/9 1/12

The expected probability is

Expected probability = $\sum_{i=0}^5 x_{i}p(x_i)$

Expected probability = $0p(0)+1P(1)+2P(2)+3P(3)+4P(4)+5P(5)$

Expected probability = $0\cdot (\frac{5}{18})+1\cdot (\frac{1}{4})+2\cdot (\frac{1}{9})+3\cdot (\frac{1}{18})+4\cdot (\frac{2}{9})+5\cdot (\frac{1}{12})=\frac{35}{18}$

It is given that the yearly lease = $12,000.

The yearly leases for the whole building in a given year is

Yearly leases = $\frac{35}{18}\times 12000=23333.3333333\approx 23333.33$

Therefore, the correct option is B.

3 0

4 years ago

For a sequence defined by f(1)=13 and 2f(n-1)+(n-2), which of the following is the value of f(4)

densk [106]

Given that:
f(1)=13 and 2f(n-1)+(n-2)
then:
f(4) will be found as follows:
f(2)=2f(2-1)=2f(1)=2*13=26
f(3)=2f(3-1)+(3-2)=2f(2)+1=2*26+1=53
f(4)=2f(4-1)+(4-2)=2f(3)+(4-2)=2(53)+2=108

Thus:
Answer:(3) 108

6 0

3 years ago

Stephanie is looking into season passes at magic mountain. The basic membership costs $12 monthly and $6 per each visit . The ep

Sphinxa [80]

Answer:

Step-by-step explanation:

so its at 12 visits because its their lowest common factor so i think it should be 12

4 0

3 years ago

How to solve these kind of questions.

Nonamiya [84]

To solve those you need to FOIL or rainbow the distributive property

hope this helped

8 0

3 years ago