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2 years ago

(x + 3x3 + 8x2) - (8x – 7x3 + 7x2)

Mathematics

2 answers:

Dafna11 [192]2 years ago

7 0

Answer:

10 x 3 + x 2 -7 x

Step-by-step explanation:

Phantasy [73]2 years ago

5 0

Answer: 10x^3

Step-by-step explanation:

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Pleaseeee I beg you helpppppp thank youuuuuu :)))

Elenna [48]

Answer: 1) 4%/40% 2)4%/40% 3)5%/50% 4)4%/40%

Step-by-step explanation:

i think those are the answers

7 0

2 years ago

What is the answer ?

Sedbober [7]

Answer:

D. Stephen

Hope This Helps! Have A Nice Day!!

5 0

3 years ago

Read 2 more answers

Dylan just started a running plan where he runs 14 miles the first week and then increases the number of miles he runs by 10% ea

Vladimir79 [104]

Answer:

36 miles

Step-by-step explanation:

Given - Dylan just started a running plan where he runs 14 miles the first

week and then increases the number of miles he runs by 10% each

week.

To find - If he keeps up this plan for 11 weeks, how many total miles would

Dylan have run ?

Proof -

1st week = 14 miles

2nd week = 14 + 10% of 14 = 14 + 1.4 = 15.4

3rd week = 15.4 + 10% of 15.4 = 15.4 + 1.54 = 16.94

4th week = 16.94 + 10% of 16.94 = 16.94 + 1.694 = 18.634

5th week = 18.634 + 10% of 18.634 = 18.634 + 1.8634 = 20.4974

6th week = 20.4974 + 10% of 20.4974 = 20.4974 + 2.04974 = 22.54714

7th week = 22.54714 + 10% of 22.54714 = 22.54714 + 2.254714 = 24.801857

8th week = 24.801857 + 10% of 24.801857 = 24.801857 + 2.4801857 = 27.2820427

9th week = 27.2820427 + 10% of 27.2820427 = 27.2820427+ 2.72820427 = 30.01024697

10th week = 30.01024697 + 10% of 30.01024697 = 30.01024697 + 3.001024697 = 33.01127167

11th week = 33.01127167 + 10% of 33.01127167 = 33.01127167 + 3.301127167 = 36.31239884 ≈ 36

∴ we get

Total miles Dylan would run = 36 miles.

8 0

2 years ago

Which events are mutually exclusive?

statuscvo [17]

The last one is I think

6 0

3 years ago

3. Graph y=-4x² – 2 and its inverse. (1 point)

madam [21]

Function and its inverse was graphed.

<u>Step-by-step explanation:</u>

y = -4x²- 2

To find the inverse function of y = -4x²- 2 we have to transform the formula to calculate x in terms of y.

y = -4x²- 2

-4x² = y - 2

x = √(y-2) / -4

Now we can change the letters to follow the convention that x is the independent variable and y is the function's value:

y = √(x-2) / -4

Now we have to draw the graph as,

It was side by side that is LHS is the function and the RHS is its inverse.

6 0

3 years ago