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3 years ago

Is 32k+24=8(4k+3) true? a.True b.False

Mathematics

2 answers:

Kipish [7]3 years ago

8 0

Answer:

$\Large \boxed{\mathrm{a. \ True}}$

Step-by-step explanation:

$32k+24$

$\sf Factor \ out \ 8 \ from \ the \ expression.$

$8(4k)+8(3)$

$8(4k+3)$

$32k+24=8(4k+3)$

$\sf The \ equation \ is \ true.$

melisa1 [442]3 years ago

6 0

Answer:

a. True.

Step-by-step explanation:

32k + 24 = 8(4k + 3)

32k + 24 = 32k + 24

32k - 32k = 24 - 24

0 = 0

Since 0 does equal 0, the statement is a. True.

Hope this helps!

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Step-by-step explanation:

Simplified:

1/3 x 1/3

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2 years ago

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The 1992 world speed record for a bicycle (human-powered vehicle) was set by Chris Huber. His time through the measured 200 m st

Reil [10]

Answer:

a) 30.726m/s and b) 5.5549s

Step-by-step explanation:

a.) What was Chris Huber’s speed in meters per second(m/s)?

Given the distance and time, the formula to obtain the speed is

$v=\frac{d}{t}$ .

Applying this to our problem we have that

$v=\frac{200m}{6.509s}= 30.726m/s$ .

So, Chris Huber’s speed in meters per second(m/s) was 30.726m/s.

b) What was Whittingham’s time through the 200 m?

In a) we stated that $v=\frac{d}{t}$ . This formula implies that

$t=\frac{d}{v}$ .

First, observer that $19\frac{km}{h} =19,000\frac{m}{h}=\frac{19,000}{3,600}m/s= 5.2777m/s$ .

Then, Sam Whittingham speed was equal to Chris Huber’s speed plus 5.2777 m/s. So, $v=30.726\frac{m}{s} +5.2777\frac{m}{s}= 36.003 m/s.$

Then, applying 1) we have that

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3 years ago

Which of the following is an improper integral:

Alla [95]

Answer:

∫₀² ln(x²) dx

Step-by-step explanation:

An integral is an improper integral if one or both endpoints is infinity, if the function is undefined at one or both endpoints, or if the function is discontinuous between the endpoints.

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3 years ago

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Answer:

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Step-by-step explanation:

In one hour Roberta makes $9

So if she works for 8 hours she will be making

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Also she earns a commission of 10.5% on selling a jewellery worth $880

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=> $\frac{10.5}{100}\times 880$

=> $0.105\times 880$

=> 92.4

Hence Roberta will be earning a total amount of

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=>$164.4

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