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sleet_krkn [62]
3 years ago
15

1. Mona sells previously enjoyed rare CDs for $5/ea. and rare vinyl records for $7/ea. She sold a total of 1,200 CDs and records

in a particular month, with total sales of $6,760. So:
a. What is the equation? Solve it.
b. How many CDs and records were sold?
c. What were the total dollar sales of each?

hi guys i hope you can help me to answer this question! thanks
Mathematics
1 answer:
Leokris [45]3 years ago
6 0

Answer:

C  or A

Step-by-step explanation:

I think this is write

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Find (fºg)(1)<br> f(x) = x² - 1<br> g(x) = √x <br> A.0<br> B.1<br> C.4 √2<br> D. √8
Savatey [412]

Given:

The function are

f(x)=x^2-1

g(x)=\sqrt{x}

To find:

The value of (f\circ g)(1).

Solution:

We have,

f(x)=x^2-1

g(x)=\sqrt{x}

We need to find the value of (f\circ g)(1).

(f\circ g)(1)=f(g(1))            [\because (f\circ g)(x)=f(g(x))]

(f\circ g)(1)=f(\sqrt{1})            [\because g(x)=\sqrt{x}]

(f\circ g)(1)=f(1)      

(f\circ g)(1)=(1)^2-1                  [\because f(x)=x^2-1]

(f\circ g)(1)=1-1      

(f\circ g)(1)=0      

The value of (f\circ g)(1) is 0.

Therefore, the correct option is A.

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3 years ago
8. Solve X=Students &amp; Y=Teachers<br> X+Y=24<br> X=3Y
Len [333]

Answer:

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Step-by-step explanation:

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y= 6

hence x = 24 _6 = 18

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3 years ago
What is the answer of 9^2 • 9^3
zloy xaker [14]

Answer:

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Step-by-step explanation:

the number you're multiplying stays the same and you add your powers I believe.

so it's basically 9•1 and the ^2+^3=^5

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Step-by-step explanation:

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