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3 years ago

A test has 20 questions how many do you need to answer correctly in order to get 4/5 of them right

Mathematics

2 answers:

Ket [755]3 years ago

7 0

4/5 x 20 = 16

Answer: 16 questions

lora16 [44]3 years ago

5 0

To figure out the question, we can do 20 multiplied by 4/5, aka 0.8, and we get 16 questions as our answer!

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Given that f(x)= x2+3 and g(x)= x+4/3 solve for (f(g(x)) when x =2

Savatey [412]

$\bf \begin{cases}
f(x)=x^2+3\\\\
g(x)=x+\cfrac{4}{3}
\end{cases}
\\\\\\
\boxed{x=2}\qquad g(2)=(2)+\cfrac{4}{3}\implies \boxed{g(2)=\cfrac{10}{3}}
\\\\\\
f(~~g(x)~~)=[g(x)]^2+3\implies f(~~g(2)~~)=[g(2)]^2+3
\\\\\\
f(~~g(2)~~)=\left[ \boxed{\frac{10}{3}} \right]^2+3\implies f(~~g(2)~~)=\cfrac{10^2}{3^2}+3
\\\\\\
f(~~g(2)~~)=\cfrac{100}{9}+3\implies f(~~g(2)~~)=\cfrac{100+27}{9}
\\\\\\
f(~~g(2)~~)=\cfrac{127}{9}$

7 0

3 years ago

Can you guys name the property please.

Setler [38]

Answer:

I think A. Reflexive Property but if I am wrong, I am so sorry

Step-by-step explanation:

because 6 + 1 is is not subtracting or multiplying

Hope this helps

3 0

3 years ago

Find the earnings rounded to the nearest cent <br>sales: $984 <br>commission: 10%

Scilla [17]

Answer:

$1082

Step-by-step explanation:

10% of $984

10/100 ($984)= $98.4

Earnings = ($98.4+$984)

Earnings = $1082.4

Earnings = $1082 (to the nearest cent)

6 0

3 years ago

4 • 4 • 4 • 4 • 4 • 4 • 4 = 47

Virty [35]

Answer: I think the answer is 16384!

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

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sertanlavr [38]

R=0.8 might be wrong tho

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2 years ago