Joe drives 20 mi-in 1/2 h. how Long Will it take him to derive 50 mi?

Answers

Answer 1

Answer: An hour and 15 minutes. Since Joe is driving 20 miles per 1/2 hour that means he is driving 40 miles every hour. We still have 10 miles left and since 20 divided by 2 is ten you would simply cut the time it takes him to drive 20 miles in half making 15 minutes. Then you add the time it takes to drive 40 miles and 10 miles and that's how you get an hour and 15 minutes. Hope this made sense!

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Evaluate the following rational expression for x equals 7

Answers

it would be 7x hope this helps

In APQR, ZQ = ZP, RP = 13 and PQ = 19. Find the length of QR.

Answers

Answer:

Step-by-step explanation:

∠Q ≅ ∠ P ⇒ RP = RQ = 13

Find the product.

a^4(3a ^2 - 2a + 1)

Answers

   a⁴(3a² - 2a + 1)

We just have to multiply each term inside the parentheses by a⁴ .

   a⁴(3a² ) = 3a⁶

   a⁴( - 2a ) = -2a⁵

   a⁴( 1) = a⁴

Now, just addum up : 3a⁶ - 2a⁵ + a⁴

Answer:

3A^6-2a^5+a^4

Step-by-step explanation:

Solve for x: 5|2x − 2| + 8 = 18.x = 2, x = −2
x = −2, x = 0
x = 2, x = 0
x = 0, x = 1 over 2

Answers

remember
|x| makes x posotive
5|2x-2|+8=18
minus 8 both sides
5|2x-2|=10
divide both sides by 5
|2x-2|=2
assume
2x-2=2 and 2x-2=-2

2x-2=2
add 2
2x=4
divide 2
x=2

2x-2=-2
add 2
2x=0
x=0

x=0 or x=2

3rd choice

Answer:

C. x = 2, x = 0

Step-by-step explanation:

The equation of a circle is given below:x squared minus 4 x plus y squared minus 6 y minus 7 equals 0

Identify the center and radius of the circle.

Group of answer choices

Center: left parenthesis 2 comma 3 right parenthesis
Radius: 20

Center: left parenthesis 4 comma minus 6 right parenthesis
Radius: 2 square root of 5

Center: left parenthesis negative 4 comma 6 right parenthesis
Radius: 20

Center: left parenthesis 2 comma 3 right parenthesis
Radius: 2 square root of 5

Answers

Given:

The equation of the circle is

We need to determine the center and radius of the circle.

Center:

The general form of the equation of the circle is

where (h,k) is the center of the circle and r is the radius.

Let us compare the general form of the equation of the circle with the given equation to determine the center.

The given equation can be written as,

Comparing the two equations, we get;

(h,k) = (0,-4)

Therefore, the center of the circle is (0,-4)

Radius:

Let us compare the general form of the equation of the circle with the given equation to determine the radius.

Hence, the given equation can be written as,

Comparing the two equation, we get;

Thus, the radius of the circle is 8

What is a solid figure without any bases and with only one curved surface

Answers

A Sphere is a shape with only a curved surface with no bases or edges.

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