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4 years ago

X^2-21.75x=-15.75 what is one solution

1 answer:

5 0

Well, there are two solutions.

Add both sides by 15.75 then from here, you can use quadratic formula.

So your answer should be x = -2.44949 or 2.44949.

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57 ÷ (9 + 3) – 8 who knows the anwser

vitfil [10]

Answer in decimal form: -3.25
answer in improper fraction form: - 13/4
answer in fraction form: -3 1/4

Hope this helped!

6 0

2 years ago

16 What value could you put in place of the x to make it a function? * (8, 7) (7,-6) (-4,5) (x, 9)

Tresset [83]

Answer:

Step-by-step explanation:

You can't have a repeated x-value in a function.

8 is taken by (8, 7)

7 is taken by (7,-6)

-4 is taken by (-4, 5)

9 is the only number that is not taken by any other point yet.

Remember that for a relationship to be a function it can't have repeated x-values. However, it doesn't matter to have the same x and y values!

Hope this helped!

6 0

3 years ago

Can someone answer this quetion please answer it correctly if it’s correct I will mark you brainliest

slega [8]

I think the answer is exactly 50 times.

HOPE THIS WILL HELP U..✌✌

6 0

3 years ago

Read 2 more answers

Solve. 90^x = 27. Explain every step.

DaniilM [7]

Answer:

The answer is ⇒ x = 0.73244

Step-by-step explanation:

∵ 90^x = 27 ⇒ insert log in both sides

∴ $log(90)^{x}=log(27)$

∵ 90 = 9 × 10 , 27 = 3³

∵ log(a)^b = b log(a)

∴ log(9 × 10)^x = x log(9 × 10)

∴ $xlog(9*10)=log(3^{3})$

∵ log(a × b) = log(a) + log(b)⇒log(9 × 10) = log(9) + log(10)

∴ $x[log(9)+log(10)]=3log(3)$

∵ log(10) = 1 , 9 = 3²

∴ $x[log(3)^{2}+1]=3log(3)$

∴ $x[2log(3)+1] = 3log(3)$

∴ x = (3log3)/[2log(3)+1]

∴ x = 0.73244

3 0

3 years ago

Read 2 more answers

I dont get it- pls help

Anettt [7]

Answer:

_ +3

Step-by-step explanation:

this should be the answer

6 0

3 years ago