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3 years ago

14

. In which of the problems below would applying the multiplicative inverse be the best first step in determining a solution to t

he equation?

1 answer:

kirza4 [7]3 years ago

7 0

Answer:

B

Step-by-step explanation:

In The rest of the problems, you add or subtract first.

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Marcus observed that 8 of the 20 games that he had bowled last week were over 180. What percent of his games were over 180?

shepuryov [24]

Answer:

40%

Step-by-step explanation:

Ok so my brain is sorta not working but it said "hey! 20 divided by 2 is 10!"

So I was like ight and divided 80 by 2 to to get 40%.

Hope this helps.

6 0

3 years ago

Timmy estimated he would spend $9 at the candy store. He went a little over-budget and spent $12. What was the percent error?

kap26 [50]

<h2>Answer :</h2>

Error (e) = 12 - 9 = $ 3

assumed value (a) = $ 9

$\boxed{ \mathrm{ \% \: error = \dfrac{error}{assumed \: value} \times 100}}$

$\mathrm{ \% \: error =\dfrac{3}{9} ×100}$

$\mathrm{ \% \: error = \dfrac{1}{3} ×100}$

$\mathrm{ \% \: error = 33.33 \%}$

_____________________________

$\mathrm{ \#TeeNForeveR}$

8 0

3 years ago

Please help!!!! <br><br> If f(1) = 2 and f(n+1) = f(n)^2 – 3 then find the value of f(3).

Black_prince [1.1K]

Answer:

The value of f(3) is -2.

Step-by-step explanation:

This is a recursive function. So

$f(1) = 2$

Now, we find f(2) in function of f(1). So

$f(1+1) = f(1)^2 - 3$

$f(2) = f(1)^2 - 3 = 2^2 - 3 = 1$

Now, with f(2), we can find the value of f(3).

$f(2+1) = f(2)^2 - 3$

$f(3) = f(2)^2 - 3 = 1^2 - 3 = -2$

The value of f(3) is -2.

4 0

3 years ago

nydimaria [60]

Answer:

1) D

2) 10

Step-by-step explanation:

sin(30) = opposite/hypotenuse

sin(30) = 5/x

½ = 5/x

x = 5/0.5

x = 10

5 0

3 years ago

Math please help 10 points!

gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

$average= \frac{sum of scores}{number of tests}$

$80= \frac{79+81+77+x}{4}$

80 x 4 = 79+81+77+x

320=237 + x

320-237 = x

83=x

so Marianne must score 83 points or higher on her last test

8 0

3 years ago