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leonid [27]
3 years ago
6

Gina can run 21 laps in 7 minutes.what is her average running rate in laps per minute

Mathematics
2 answers:
zheka24 [161]3 years ago
7 0
3 because 21/7=3
hope this helps!!!

ivann1987 [24]3 years ago
5 0
Average running time = \frac{laps  run}{time  taken}
                                   = \frac{21  laps}{7  mins}
                                   = 3 laps / min 
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harina [27]
The answer is 2. each toy <span />
3 0
3 years ago
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Homework due tomorrow pls help !!
Andrej [43]
8+3+11=22
8 divided by 2=4
11-3=8
2+3+3=8
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♦️=3
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5 0
2 years ago
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Which of the following is an even function g(x) = (x – 1)2 + 1g(x) = 2x2 + 1g(x) = 4x + 2g(x) = 2x
GuDViN [60]
An even function can be reflected about the y axis and map onto itself
example: y=x^2

an odd function can be reflected about the origin and map onto itself
example: y=x^3


a simple test is the following

if f(x) is even then f(-x)=f(x)
if f(x) is odd then f(-x)=-f(x)


so

even function
subsitute -x for each and see if we get the same function
remember to fully expand these

g(x)=(x-1)^2+1=x^2-2x+1+1=x^2-2x+2 is the original one

g(x)=(x-1)^2+1
g(-x)=(-x-1)^2+1
g(-x)=(1)(x+1)^2+1
g(-x)=x^2+2x+1+1
g(-x)=x^2+2x+2
not same because the original has -2x
not even


g(x)=2x^2+1
g(-x)=2(-x)^2+1
g(-x)=2x^2+1
same, it's even

g(x)=4x+2
g(-x)=4(-x)+2
g(-x)=-4x+2
not the same, not even

g(x)=2x
g(-x)=2(-x)
g(-x)=-2x
not same, not even



g(x)=2x²+1 is the even function
8 0
3 years ago
Read 2 more answers
If log_3(x)=4.5 and log_3(y)=3, what is log_3(x^2/y)?<br><br>a. 3<br>b. 6.75<br>c. 6<br>d. 1.5​
astraxan [27]

There all log base 3, the base won't matter as long as they're all the same.

log(x^2/y)=2log(x)-log(y)=2(4.5)-3=6

Answer: c. 6

4 0
3 years ago
Jarrell's family drove from their House to a
Aleksandr [31]

Answer: 156 miles

Step-by-step explanation:

First, divide 936 by 3 that is 312.

Then, do 3 times 2 because they stoped two times everyday that is 6.

Next, divide 936 by 6 that is 156.

Finally, do 312-156 that  is 156.

156 miles is the answer

8 0
3 years ago
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