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Kisachek [45]
3 years ago
9

I NEED HELP ON THISSSSS

Mathematics
2 answers:
Dafna11 [192]3 years ago
7 0

Answer:

A is correct

Step-by-step explanation:

Lynna [10]3 years ago
3 0
The answer to that question is C
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I don’t get none of the work it is very hard to do
Misha Larkins [42]

Answer:

6

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7 0
3 years ago
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Part B: Determine the volume of the sphere.
Vinil7 [7]

Answer:

V=4/3 π r ^3 is the answer

3 0
3 years ago
Use the substitution method to solve.<br><br> y=5−3x<br> 5x−4y=−3
Vadim26 [7]
Well just substitute y (the first equation) into the second equation.
So
5x-4(5-3x)=-3
Then just solve the equation from there.
5x-20+12x=-3
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6 0
3 years ago
Matthew practiced playing the guitar for 2/3 hours. Natalie practiced playing the guitar 1 3/4 times as long as
belka [17]

Answer:

2/3*(7/4)=7/6 hours

Step-by-step explanation:

7 0
2 years ago
An expression is shown below. Which expression is equivalent to the expression shown?
Vera_Pavlovna [14]

Note: In option A, it should be "+" instead of "(".

Given:

The expression is

-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)

To find:

The equivalent expression.

Solution:

We have,

-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)

Using distributive property, we get

=-2x(x)-2x(y)-2x(-3)+3(-x)+3(4y)+y(3x)+y(5y)+y(-3)

=-2x^2-2xy+6x-3x+12y+3xy+5y^2-3y

On combining like terms, we get

=-2x^2+5y^2+(-2xy+3xy)+(6x-3x)+(12y-3y)

=-2x^2+5y^2+xy+3x+9y

The expression -2x^2+5y^2+xy+3x+9y is equivalent to the given expression.

Therefore, the correct option is A.

6 0
3 years ago
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