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Kay [80]
3 years ago
9

Can someone help me with this math homework please!

Mathematics
1 answer:
labwork [276]3 years ago
7 0

Answer:

1/2

8

Step-by-step explanation:

When its talking about the result or output, look at the range, and then follow the line(s) back to the number(s) in the domain. Do the opposite when it's talking about the function of a certain number, e.g. f(4).

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NEED HELP ASAP, WILL MARK BRAINLIEST!!!
EastWind [94]

Answer:

7. -

a. 3.5 or 7/2 hours

b. 24.5

c. After 7 hours (and at the beginning when t=0)

8. -

a. 4 seconds

b. 1 second

c. 54 meters

Step-by-step explanation:

7. M(t)=-2t^2+14t

M’(t)=-4t+14

a)

-4t+14=0

4t=14

2t=7

t=7/2

b) M(7/2)=24.5

c)

M(t)=0

-2t^2+14t=0

t^2-7t=0

t(t-7)=0

t=0, 7

8.

a)

h(t)=0

-6t^2+12t+48=0

t^2-2t-8=0

(t-4)(t+2)=0

t=-2, 4

t=4

b)

h(t)=-6t^2+12t+48

h’(t)=-12t+12

h’(t)=0

-12t+12=0

12t=12

t=1

c) h(1)=54

I hope this helps; please vote brainliest!

3 0
3 years ago
87.5% , 100% , 83.33 , 93.33% , 100% , 82.5% are all the academic points I've gotten this quarter. What's my final grade?
9966 [12]

Write out your scores. ...

Write out the total possible points. ...

Add up both columns. ...

Calculate your average grade. ...

Multiply the decimal number by 100. ...

Determine your letter grade or grade point equivalent (GPA).


6 0
3 years ago
Which one is the answer
docker41 [41]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the sum of the first five terms of a geometric series with a1 = 6 and r = 1/3?
tresset_1 [31]
The sum of the terms of a geometric sequence with common ratio lesser than 1 is calculated through the equation,

                                  Sn = (a1) x (1 - r^n) / (1 - r)
Substituting the known values,
                                 S5 = (6) x (1 - (1/3)^5) / (1 - 1/3) = 242/27
Thus, the sum of the first five terms is approximately equal to 8.96. 

6 0
3 years ago
Read 2 more answers
I'm using system of equations and I have to use either substitution or elimination. My two equations are
Svetach [21]
There is no solution. Here is the explanation with both of the methods :)

5 0
2 years ago
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