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3 years ago

I need this for my homework!!!It is due tommorow.

Mathematics

1 answer:

sladkih [1.3K]3 years ago

4 0

I solved 13-18
13. -20
14. 38
15. 16/21
16. 70
17. 12
18. 25

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QUESTION 10

alexandr402 [8]

Answer:

let the grade points be a,b,c

a+b+c=258

b=c+10( since she noticed that on tests two and three,she scored 10 points fewer).

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2 years ago

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If f(x)=3x-1 and g(x)=x+2, find (f+g)(x)

Temka [501]

Answer:

4x +1 is your answer.

Step-by-step explanation:

What you do is you add f(x) and g(x) together.

3x - 1 + (x + 2)

4x +1 is your answer.

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3 years ago

Divide 4x^4+27x^3+21x^2+22x+24 by x+6 using long division.

Anna35 [415]

$\frac{4x^{4}+27x^{3}+21x^{2}+22x+24}{x+6}$

$\frac{(x+1)(x+6)(4x^{2}−x+4)}{x+6}$

$4x^{3}+3x^{2}+3x+4$

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2 years ago

Solve this equation for a: 6a + 3 = 45 A.6 B.7 C.8 D.9

a_sh-v [17]

Answer: 7

Step-by-step explanation:

6 x 7 = 42

42+3 =45

Therefore 7 is the answer

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3 years ago

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Suppose two trains leave a certain station, at the same time, traveling in opposite directions. one train travels 1010 mph fas

Rom4ik [11]

In the question, it is given that

Suppose two trains leave a certain station, at the same time, traveling in opposite directions. one train travels 10 mph faster than the other. in 2.5hours, the trains are 255 miles apart.

Let the speed of the slower train be x m/h and faster train be (x+10) m /h.

Distances travelled by them are

$d_{slower} = 2.5 x \ miles, d_{faster} = 2.5(x+10) miles$

And total distance is 255 miles, that is

$2.5x +2.5(x+10) = 255
\\
x+x+10=102
\\
2x = 92
\\
x = 46 MPH$

So the speed of slower train is 46 MPH and of faster train is 56MPH.

8 0

2 years ago