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3 years ago

Help Plz Will mark brainliest

Mathematics

1 answer:

Karolina [17]3 years ago

8 0

Answer:

b. $(x - 2) ^{2} - 36$

d. $(x - 2) ^{2} - 36$

Step-by-step explanation:

$(x + 4)(x - 8) \\ \\ = {x}^{2} - 8x + 4x + 4( - 8) \\ \\ = {x}^{2} - 4x - 32 \\ \\ = {x}^{2} - 4x + 4 - 4 - 32 \\ \\ = {x}^{2} - 4x + {2}^{2} - 36 \\ \\ = (x - 2) ^{2} - 36$

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Circle A has a radius of 21 meters . Circle B has a radius of 28 meters. Find the circumference if each circle in terms of pi

qwelly [4]

Answer:

Circle A= $42\pi$

Circle B = $56\pi$

Step-by-step explanation:

Circumference of a circle = $2\pi r$

Since you are given the radius, you put it in place of r

Circle A = $2 *\pi *28\\21*2 = 42\\\\42\pi$

Circle B= $\\2*\pi *28\\28*2 =56\\56\pi\\\\\\$

7 0

3 years ago

Denver Colorado often experiences snowstorms resulting in multiple inches of accumulated snow during the last snow storm the sno

iris [78.8K]

It's is the first question as the answer says.

6 0

4 years ago

Solve for x. (parallelogram)

victus00 [196]

The value of x is 55°

Step-by-step explanation:

Given figure is a parallelogram.

In a parallelogram, the opposite sides are equal and parallel and the opposite angles are equal.

This means that,

in the given parallelogram

m∠A=m∠C=x°

m∠B=m∠D=(2x+15)°

The sum of interior angles of a parallelogram is 360 degrees.

So,

m∠A+m∠B+m∠C+m∠D=360°

Putting the values of angles

$x+(2x+15)+x+(2x+15)=360\\x+2x+15+x+2x+15=360\\6x+30=360\\Subtracting\ 30\ from\ both\ sides\\6x+30-30=360-30\\6x=330\\Dividing\ both\ sides\ by\ 6\\\frac{6x}{6}=\frac{330}{6}\\x=55$

The value of x is 55°

Keywords: Parallelogram, angles

Learn more about parallelograms at:

#LearnwithBrainly

7 0

3 years ago

(( I will give 25 points and brainy for right answers (Please answer all!!) CORRECTLY~!!!))

Alborosie

1. D. Concave Hexagon

2.
(n - 2)180 = 2160
n - 2 = 12
n = 14

C. 14

3.
(n - 2)180 = 3060
n - 2 = 17
n = 19

D. 19

4.
[(n - 2)180]/n =

= [(15 - 2)180]/15

= 13(180)/15

= 156

C. 156°

8 0

4 years ago

A toll road company has two plans for customers. One plan charges $10 per month for rental of a transponder (a box that identifi

Lunna [17]

Answer:

The minimum number of miles you would need to drive in a month to make the first deal a better deal is 66.6 miles.

Step-by-step explanation:

For the first deal to be a better deal it has to cost less than the second plan and you can write an equation in which the first plan has a lower cost than the second one:

10+0.60m<0.75m, where:

m is the number of miles driven

Now, you can solve for m:

10<0.75m-0.60m

10<0.15m

10/0.15<m

m>66.6

According to this, the answer is that the minimum number of miles you would need to drive in a month to make the first deal a better deal is 66.6 miles.

5 0

3 years ago