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Zarrin [17]
3 years ago
7

If a= -2 and b = 4 3a^2- 5b =6ab^2=

Mathematics
2 answers:
Ivanshal [37]3 years ago
3 0

Answer:

3a^2- 5b =32

6ab^2=-192

Step-by-step explanation:

3a^2- 5b =

Let a = -2 and b=4

3(-2)^2 -5(-4)

3*4 -(-20)

12 +20

32


6ab^2=

6(-2)*(4)^2

6(-2)*16

-192

levacccp [35]3 years ago
3 0

-2 and b = 4 3a^2- 5b =6ab^2=


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3 years ago
Simplify:<br> 2(5 + w) + 3(w + 2)
AlekseyPX

Answer:

16+5w

Step-by-step explanation:

2(5 + w) + 3(w + 2)

5+w evaluates to 5+w

Multiply 2 by 5+w

we multiply 2 by each term in 5+w term by term.

This is the distributive property of multiplication.

Multiply 2 and 5

1

2 × 5 = 10

Multiply 2 and w

Multiply 1 and w

The w just gets copied along.

w

2 × w = 2w

2*(5+w) evaluates to 10+2w

w+2 evaluates to w+2

Multiply 3 by w+2

we multiply 3 by each term in w+2 term by term.

This is the distributive property of multiplication.

Multiply 3 and w

Multiply 1 and w

The w just gets copied along.

w

3 × w = 3w

Multiply 3 and 2

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3 × 2 = 6

3*(w+2) evaluates to 3w+6

To add the polynomials 10+2w and 3w+6 we try to add or combine terms in one polynomialwith any like terms in the other polynomial.

10 + 6 = 16

2w + 3w = 5w

The answer is 16+5w

2*(5+w)+3*(w+2) evaluates to 16+5w

The final answer is

16+5w

7 0
4 years ago
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What is the answer for the question 24/p=4
4vir4ik [10]

Answer:

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Step-by-step explanation:

We want to isolate p, so we can first multiply by p on both sides.

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Enter the coordinates of the vertices of r(180,0) and t(3,-2) (QRST) will give crown
Viktor [21]

Answer:

Step-by-step explanation:

From the graph attached,

Coordinates of the vertices are,

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(x, y) → (x+3, y-2)

Q(1, 3) → Q''(4, 1)

R(3, -3) → R"(6, -5)

S(0, -2) → S"(3, -4)

T(-2, 1) → T"(1, -1)

Following rule r_{(180,\text{O})} (rotation of a point by 180° about the origin) will give the image points,

(x, y) → (-x, -y)

Q"(4, 1) → Q'(-4, -1)

R"(6, -5) → R'(-6, 5)

S"(3, -4) → S'(-3, 4)

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7 0
3 years ago
6 1/4 plus 9 4/5 help
Sergeu [11.5K]

Answer: 321/20 or 16 1/20

Step-by-step explanation:

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