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4 years ago

2b + 8 - 5b + 3 = - 13 + 8b - 5

Mathematics

2 answers:

ollegr [7]4 years ago

8 0

Answer:If you have to calcualte the ,,b" this way you have to solve it!

Step-by-step explanation:

2b+8-5b+3=-13+8b-5

Bringing there the ,,8b" with the contrast foreshow--->-3b+11=-18+8b

-3b-8b=-18-11

-11b=-29|*(-11)

b=29/11

MissTica4 years ago

6 0

I hope this helps you

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Find the vertex of f(x) = 3(x-7)(x+5)

Inessa05 [86]

Answer:

The vertex is at (1, -108).

Step-by-step explanation:

We have the function:

$f(x)=3(x-7)(x+5)$

And we want to find its vertex point.

Note that this is in factored form. Hence, our roots/zeros are x = 7 and x = -5.

Since a parabola is symmetric along its vertex, the x-coordinate of the vertex is halfway between the two zeros. Hence:

$\displaystyle x=\frac{7+(-5)}{2}=\frac{2}{2}=1$

To find the y-coordinate, substitute this back into the function. Hence:

$f(1)=3((1)-7)((1)+5)=3(-6)(6)=-108$

Therefore, our vertex is at (1, -108).

4 0

3 years ago

Read 2 more answers

Four circles, each with a radius of 2 inches, are removed from a square.

natka813 [3]

Given:

Given that the radius of the circle is 2 inches.

We need to determine the area of the remaining square.

Area of a square:

Given that each circle has a radius of 2 inches.

Then, the diameter of each circle is 4 inches.

Hence, the side length of the square is 2 × 4 = 8 inches.

The area of the square is given by

$A=s^2$

$A=8^2$

$A=64$ $in^2$

Thus, the area of the square is 64 square inches.

Area of the four circles:

The area of one circle is given by

$A=\pi r^2$

Substituting r = 2, we have;

$A=4\pi$

Thus, the area of one circle is 4π in²

The area of 4 circles is 4 × 4π =16π in²

Hence, the area of the 4 circles is 16π in²

Area of the remaining square:

The area of the remaining square is given by

Area = Area of the square - Area of four circles.

Substituting the values, we get;

$Area=64-16\pi$

Thus, the area of the remaining square is (64 - 16π) in²

Hence, Option c is the correct answer.

5 0

2 years ago

CAN SOMEONE EXPLAIN HOW TO GET AN ANSWER???????

pochemuha

Answer:

I do not know the answer choices, but from what the problem is asking you, C is the range and S is the domain. If this is not enough information, give the answer choices, repost this question, and I will be capable of answering.

I am joyous to assist you anytime.

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4 years ago

Solve 5 ÷ 4. Express your answer as a mixed number.

Georgia [21]

use photomath

5/4

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8 0

3 years ago

Xsquare + 10x + 16 equals 0

inn [45]

X^2+10x+16＝0

First, you find factors of 16.
1 x 16
2 x 8
4 x 4

Next, you find which of the factor pairs adds up to 10 (from the 10x). In this case, 2 x 8 because 2 times 8 is 16 and 2 plus 8 is 10.

Then, the equation will be written out as: (x+2) (x+8). Take those two equations and set them equal to 0, and then solve.

x+2＝0
-2 -2
x＝-2

x+8＝0
-8 -8
x＝-8

So, your answers are x＝-2 and x＝-8. You can check by plugging in those two numbers as x.

7 0

3 years ago