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Alex
3 years ago
6

HELP ME PLEASE‼️‼️‼️‼️‼️

Mathematics
1 answer:
AleksAgata [21]3 years ago
7 0

Answer:

a. 8

b. 248

Step-by-step explanation:

first, find the derivative:

-2x^2 + 32x + 120

= -4x + 32

then, have that equal 0

-4x + 32 = 0

32 = 4x

8 = x

answer a: 8

plug in answer a into the original equation

-2(8)^2 + 32(8) +120

answer b: 248

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Animal y=5.4x+34<br> person y=12x+8.5 y is weight x is years. when is the weight the same
I am Lyosha [343]

Answer:

Step-by-step explanation:

Animal                 Person

y = 5.4x + 34       y = 12x + 8.5; where y - weight, x - years

looking for when weight (y) is the same, so we need

animal weight (y) = person weight (y)

            5.4x + 34 = 12x + 8.5

        <u>   -5.4x           -5.4x</u>

                      34 = 6.6x + 8.5

                  <u>  -8.5             -8.5</u>

                   25.5  = 6.6x     divide both sides by 6.6

                         x = 3.86  years

not sure if you need your answer in decimal or what, but you can adjust accordingly.

4 0
4 years ago
How do you factor this?<br> 2z^2-12z+10=0
kotykmax [81]

Answer:

This can't be factored right now! But if it is 2z^2+12z+10=0 than it will be factored like this:

2*(z+5)(z+1)

Step-by-step explanation:

2*(z^2+6z+5)=0

2*(z+5)(z+1)

4 0
3 years ago
Read 2 more answers
Evaluate. 5(-6) = _______​
uysha [10]

Answer:

-30

Step-by-step explanation:

5 0
3 years ago
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What are the values of a, and r of the geometric series?
Charra [1.4K]
A. A= ray and r=2
That’s the answer
7 0
2 years ago
Water tank a has a capacity of 550 gallons and is 66% full. Water tank b is 53% full . The ratio of the tank a to tank b is 11:1
garik1379 [7]
A/B = 11/15 OR 15 x A = 11.B  OR  B= 15A/11

Actual Gallons in A = 550 x 66 % = 363 gal

Total capacity of B = 15A/11 OR (15 x 550)/11 = 750 gal.

Actual Gallons in B = 750 x 53% = 397.5 gal

5 0
4 years ago
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