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marin [14]
3 years ago
11

Simplify -8x^2-3y+4x-2y^3+x^2-7x^3

Mathematics
1 answer:
rewona [7]3 years ago
5 0

Answer:-7x(to the power of 2)-3y+4x-2y(to the 3rd power)-7x( to the third power)

Step-by-step explanation:

Collect like terms

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adoni [48]

Answer:

3

Step-by-step explanation:

5x3 is 15

8 0
3 years ago
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For this right triangle shown, what is the sine of angle C?
choli [55]

Answer:

8.212°

Step-by-step explanation:

Hypotenuse^2=base^2+perp^2

(8)^2=(7)^2+(perp)^2

64=49+(perp)^2

64/49=perp^2

1.306=perp^2

Now taking sq root on both sides

Perp=√1.306

Perp=1.142

Sin C=opposite/hypotenuse

Sin C=1.142/8

Sin C=0.14285

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5 0
3 years ago
Staying at the hotel in Virginia Beach costs $98.99 a night. How much would it cost to stay 4 nights? 1. In the box below type w
grigory [225]

Answer:

1.   395.96      2.   addition    3.  I picked it because each night it is 98.99 so if you were there for 4 days you would do  98.99 +98.99 +98.99 +98.99.  Which equals 395.96.

Step-by-step explanation:

5 0
3 years ago
if you have four rolls of quarters three rolls of Dimes and six rolls of nickels how much do you have
xz_007 [3.2K]
We know that
the number of coins that each roll contains is
<span>rolls of quarters-------> 40 coins
</span><span>rolls of Dimes---------> 50 coins
</span><span>rolls of nickels------> 40 coins

</span><span>four rolls of quarters------> 4*40*$0.25-----> $40
</span>t<span>hree rolls of Dimes-----> 3*50*$0.10------> $15
</span><span>six rolls of nickels-------> 6*40*$0.05-----> $12

total=[40+15+12]------> $67

the answer is
$67</span>
3 0
3 years ago
What is the equation of the line that passes through the point (-4, 6) and
mezya [45]
6= - 5/4 (-4) +b
6=-5+b
11=b
y=-5/4+11
6 0
2 years ago
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