3 years ago

Please Help me with my math I hate functions

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

5 0

(f+g)(x)=3x^2+x+x/2-3-6=3x^2+3x/2-9

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How many solutions does the following equation have?<br> -2z+10+7z=16z+7

lorasvet [3.4K]

Start with

$-2z+10+7z=16z+7$

Simplify the left hand side by summing like terms (the one involving z):

$5z+10 = 16z+7$

Subtract 5z from both sides:

$10 = 11z+7$

Subtract 7 from both sides

$3 = 11z$

Divide both sides by 11:

$z = \dfrac{3}{11}$

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2 years ago

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18.) Which of the following is 6x²/27x simplified?

Dima020 [189]

Answer:

2x^2/9x

Step-by-step explanation:

it Just is

2x^2 / 9x

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2 years ago

I will give brainliest if correct !!

sergiy2304 [10]

Answer:

126 :)

Step-by-step explanation:

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3 years ago

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Janet can do a job in three hours while Gary can do the same job in two hours. If Janet works for an hour before Gary be in help

yKpoI14uk [10]

Janet = 1/3

Gary = 1/2

(1/3) + (1/2) = 5/6

Let x = time they both can do the job together

(1/2) + (5/6)x = 1

Solve for x to find your answer.

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3 years ago

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Could someone help i’ll mark brainliest! please explain too

-BARSIC- [3]

Answer:

C. 8

Step-by-step explanation:

I almost thought this was going to be Pythagorean Theorem, but no.

Use Cosine Law:

cos θ = $\frac{10^2 + 21^2 - 17^2}{2(10)(21)}$

θ = cos−1(0.6)

θ = 53.130...

Now use the SOHCAHTOA ratio for sine ( $\frac{opposite}{hypotenuse}$ ) to find x now that you have one angle:

sin θ = $\frac{x}{10}$

x = 10sinθ (θ isn't needed to be written out as it is shown in the equation above)

x = 8

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2 years ago