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3 years ago

6

Two boys who live 14 miles apart start at noon to walk toward each other at rates of 3 mph and 4 mph respectively. In how many h

ours will they meet?

2 answers:

crimeas [40]3 years ago

8 0

They will meet each other in approximately 2 hours

Arisa [49]3 years ago

6 0

They will meet in 2 hrs!

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Bill drove his car at a constant speed while on a trip. Kevin drove his car at a different constant speed while on the same trip

Step2247 [10]

I thought to say the second sentence because it says that he’s going at a different constant speed but he doesn’t say compared to who... I’m leaning more to the last sentence.
What do you think?

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3 years ago

Complete the two-column proof by providing a reason for each of the five statements.

svet-max [94.6K]

Answer:

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Step-by-step explanation:

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2 years ago

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Can someone please help me workout this problem? If the quotient obtained by dividing 8x^4 - 2x^2 + 6x - 7 by 2x+1 is equal to 4

Angelina_Jolie [31]

Answer:

The answer to your question is p = -2 q = -6 remainder = -10

Step-by-step explanation:

Data

Dividend = 8x⁴ - 2x² + 6x - 7

Divisor = 2x + 1

Quotient = 4x³ + px² - qx + 3

Process

1.- Divide using long division

4x³ - 2x² + 3

2x + 1 8x⁴ + 0x³ - 2x² + 6x - 7

- 8x⁴ - 4x³

0 - 4x³ - 2x²

+ 4x³ +2x²

0 0 + 6x - 7

-6x - 3

0 - 10 Remainder

px² = -2x² then p = -2

-qx = 6x then q = -6

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3 years ago

The object below was made by placing a cone on top of a cylinder. The base of the cone is congruent to the base of the cylinder.

krok68 [10]

Answer:

Part 1) The volume of the object is $32\pi\ cm^{3}$ or $100.48\ cm^{3}$

Part 2) see the procedure

Step-by-step explanation:

Part 1) What is the volume, in cubic centimeters, of the object?

we know that

The volume of the object is equal to the volume of the cylinder plus the volume of the cone

<u>Find the volume of the cone</u>

The volume of the cone is equal to

$V=\frac{1}{3}\pi r^{2} h$

we have

$r=4/2=2\ cm$ -----> the radius is half the diameter

$h=3\ cm$

substitute the values

$V=\frac{1}{3}\pi (2^{2})(3)=4\pi\ cm^{3}$

<u>Find the volume of the cylinder</u>

The volume of the cylinder is equal to

$V=\pi r^{2} h$

we have

$r=4/2=2\ cm$ -----> the radius is half the diameter

$h=(10-3)=7\ cm$

substitute the values

$V=\pi (2^{2})(7)=28\pi\ cm^{3}$

Part 2) Then explain how you found the volume of the total shape

The volume of the total shape is equal to the volume of the cylinder plus the volume of the cone

$4\pi\ cm^{3}+28\pi\ cm^{3}=32\pi\ cm^{3}$ ------> exact value

Find the approximate value of the volume

assume $\pi=3.14$

$32(3.14)=100.48\ cm^{3}$

4 0

3 years ago

Can anyone explain this to me-

juin [17]

What is the figure?.......

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3 years ago

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