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AnnZ [28]
2 years ago
12

Haha please help i don't know what I'm doing

Mathematics
1 answer:
tresset_1 [31]2 years ago
4 0

Answer:

(5x+1)(x+7)

Step-by-step explanation:

4x^2+26x+6+x^2+10x

5x^2+36x+7

(5x+1)(x+7)

Prove

5x*x + 5x*7 + 1*x + 1*7

= 5x^2 + 35x + x + 7

= 5x^2 + 36x + 7

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In a race, a bicyclist travels 180 miles in 10 hours what is the unit rate in miles per hour? Question A 9 Miles per hour Questi
Svet_ta [14]
18 mph. Answer B is the correct answer
8 0
3 years ago
Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for
yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have the ordered pairs

(100,54) and (660, 138)

substitute

m=\frac{138-54}{660-100}

m=\frac{84}{560}=\$0.15\ per\ minute

step 2

Find the equation of the line in point slope form

y-y1=m(x-x1)

we have

m=0.15\\point\ (100,54)

substitute

y-54=0.15(x-100)

step 3

Convert to slope intercept form

Isolate the variable y

y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

6 0
3 years ago
Please help me!! If you need a close up please don’t hesitate to ask!
aleksandrvk [35]
What’s the question?
7 0
3 years ago
What is 1/2 of 25? _______Explain.
Scilla [17]

Answer:

12.5

Step-by-step explanation:

0.5x25=12.5. FILLER

7 0
3 years ago
F(x) = x/2 - 1 find f (12)
Karo-lina-s [1.5K]

Answer:

5

Step-by-step explanation:

Hi,

f(12)= 12/2 -1 = 6 -1 = 5

Thanks

7 0
3 years ago
Read 2 more answers
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