Evaluate 2b^2 − 4a + 4a^2 for a = 3 and b = −8.

Answers

Answer 1
Answer:

(2*(-8)^2)-(4*3)+(4*3^2)

128-12+36

152


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Malina has to bowl four games in her league. She bowled a 149, 162, and a 152 in her first three games. She wants to have an average score of 154. What score does she need in her fourth game?a.152

b.153

c.154

d.155

Answers

Answer: Option 'B' is correct.

Step-by-step explanation:

Since we have given that

Number of games she bowl = 4

Score of her in first three games are

149, 162, 152.

Her average score = 154

Let the score in her fourth game be 'x'.

As we know the formula for "Average ":

Average=\frac{\text{Sum of all observation}}{\text{Total number of observations}}\n\n\n154=(149+162+152+x)/(4)\n\n\n154* 4=463+x\n\n\n616=463=x\n\n\n616-463=x\n\n\n153=x

Hence, Her score in fourth game is 153.

Therefore, Option 'B' is correct.

(149+162+152+X)/4=154
149+162+152+X=616
X=616-149-162-152=616-314-149=302-149=153
She needs a score of 153.

Solve for the value of x

Answers

Answer:

3.2

Step-by-step explanation:

9.6 divided by 3 is 3.2

Subtract 2x 2 - 6x - 4
from 4x 2 - 4x + 3.

Answers

Subtracting the polynomials, 2x² - 6x - 4 from 4x² - 4x + 3 will give 2x² + 2x + 7

How to subtract polynomials?

Polynomials can have constants, variables and exponents, but never division by a variable.

Let's do the arithmetic of the polynomial.

4x² - 4x + 3 - (2x² - 6x - 4)

Therefore, let's open the bracket with the operator

4x² - 4x + 3  - 2x² + 6x + 4

let's combine the like terms

4x² - 2x²- 4x + 6x + 3 + 4

Therefore,

2x² + 2x + 7

learn more on polynomial here: brainly.com/question/4216386

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x subtracted from y means y-x
(4x^2-4x+3)-(2x^2-6x-4)
4x^2-4x+3-2x^2+6x+4
4x^2-2x^2-4x+6x+3+4=
2x^2+2x+7

Solve for w.
4 = 0.25(w-4.3)

Answers

W=20.3

solve what's in the parenthesis, move the terms, calculate, then divide both sides.

Answer:

20.3

Step-by-step explanation:

I did it and it was right on khan

Help me find p.....​

Answers

Answer: p = 120 degrees

Step-by-step explanation:

Figure a shows a pentagon. The sum of interior angles in a pentagon is equal to 540 degrees.

1. Subtract the known numerical angle

540 - 60 = 480

All of the remaining angles (represented by the variable p) are equal to one another. Therefore, we can use the expression 4p = 480 to find the value of p.

2. Evaluate the equation to find the value of p.

4p = 480

p = 120

What is the minimum number of degrees that a regular hexagon can be rotated before it carries onto itself?A. 180
B. 90
C. 45
D. 60

Answers

Answer:

D.  60°

Step-by-step explanation:

A regular hexagon has 6 equal sides and 6 equal angles.  

To rotate the Octagon onto itself, we have to rotate each of those sides to an adjacent side. This happens when the angle of turn is (1)/(6)th of a full-circle turn.


A circle has 360^(\circ) and  (1)/(6)* 360^(\circ)=60^(\circ)

A 60° rotation clockwise or counterclockwise puts each of the edges over the position where an adjacent edge was located.

The minimum number of degrees that a regular hexagon can be rotated before it carries onto itself is 60 degrees (D).