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kolezko [41]
3 years ago
14

Juan and Nina are in the Junior High Orchestra. As part of the orchestra they each have to learn two instruments. Juan is learni

ng to play the violin and the cello. For every 3 hours that Juan spends practicing the violin he practices the cello for 2.5 hours. Nina is learning to play the viola and cello. For every 3 hours Nina spends practicing the viola she practices the cello for 2 hours.
If Juan practiced the violin for 9 hours last week and Juan and Nina practiced the cello for the same amount of time, then Nina practiced the viola for
hours last week.
Mathematics
1 answer:
sashaice [31]3 years ago
8 0

Answer:

Nina practiced the viola for 11.25 hours.

Step-by-step explanation:

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If f(x) = (x - 2) = x3 + 2x - 4 + 13<br> what is f(2)?
leva [86]

Answer:

f(2)=21

Step-by-step explanation:

f(2)=2^3+2*2-4+13=8+4-4+13=8+13=21

8 0
3 years ago
2. Find the center and radius of the circle with equation (x-6)2+ (y + 5)2 = 9.
Romashka-Z-Leto [24]

Answer:

Center (6 , -5)   and radius = 3

Step-by-step explanation:

The Standard equation of circle can  be written as

(x - a)² + (y - b)² = r²

with center (a , b)   and radius  = r

Now from given circle equation

(x - 6)² + (y +5)² = 9

so, from here center of circle (6 , -5) and radius = 3

4 0
3 years ago
NEED ASAP plz. I will also mark brainiest! Don't just take points, I will report you.
Len [333]

Answer:

A:(-2,-3)

B:(-4.009,1.018) And (-2,-3)

C:x≈0,1.61878812

Step-by-step explanation:

I found the equations

g(x)=e^x+1

p(x)=5/2x+2

f(x)=-2x-7

plugged it in on a graph found the answer to find g(x) all you need to do is know the parent function y=e^2(exponential) and I found where the lines intersect for part A and B and or p(x)=g(x) I did e^x+1=(5/2)x+2

7 0
3 years ago
If f(x) =2x-6 then f(1)=​
marin [14]

Answer:

f(1) = -4

Step-by-step explanation:

Given that,

f(x) = 2x-6

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

Put x = 1 in the above expression.

f(1) = 2(1)-6

= 2-6

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So, the value of f(1) is equal to -4.

7 0
2 years ago
Help me please? I don’t understand.
Mazyrski [523]
Use a protractor
It can’t help measure your lines
6 0
1 year ago
Read 2 more answers
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