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alisha [4.7K]
3 years ago
7

If an object goes from 50 mph to 30 mph in 5 seconds, what is its acceleration?

Mathematics
2 answers:
lions [1.4K]3 years ago
8 0

Answer: -4 mph/s

Step-by-step explanation:

Remember the formula:

FinalVelocity = InitialVelocity + (acceleration)(time)

50 = 30 + (a)(5)

a = (30 - 50)/5

a = -4 mph/s

Viktor [21]3 years ago
7 0

Answer:

-4 mph/sec

Step-by-step explanation:

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What is the volume of a square pyramid with a base length of 6cm and a height of 9cm?
emmainna [20.7K]
Answer:
Volume = 108 cm ³

Explanation:
For a square pyramid, the volume can be calculated as follows:
Volume = \frac{1}{3} * area of base * height
Volume = \frac{1}{3} * side² * height
We have:
side length = 6 cm
height = 9 cm
Therefore:
Volume = \frac{1}{3} * 36 * 9 = 108 cm ³

Hope this helps :)
8 0
3 years ago
You receive an 11 percent commission on all sales you make if your commission for the month is 512.50 dollars what was your tota
JulijaS [17]

Total sales were $4659.1

Step-by-step explanation:

Given,

Commission = 11%

Amount of commission = $512.50

Let,

total sales = x

Therefore,

11% of x = 512.50

\frac{11}{100}x=512.50\\0.11x=512.50

Dividing both sides by 0.11

\frac{0.11x}{0.11}=\frac{512.50}{0.11}\\x= $4659.1

Total sales were $4659.1

Keywords: percentage, division

Learn more about division at:

  • brainly.com/question/13076219
  • brainly.com/question/13096001

#LearnwithBrainly

4 0
3 years ago
C is the midpoint of AB . AC=2x +2 and AB=8x. Set up an equation and showing all steps, solve for x and length CB.
olga55 [171]

See the attached drawing for a visual.

Since we know that AC = CB is half the length of AB, we can write that in equation form. The goal is to determine the length of CB = AC = 2x+2

2x+2 =\frac{1}{2} (8x)

2x+2 = 4x

2x = 2

x=1

Now that we know the value of x, we can find the value of CB = 2x+2:

CB = 2x+2

CB = 2(1)+2

CB = 4


8 0
3 years ago
Given a standard day, at what altitude is the true airspeed of an aircraft approximately twice of what the airspeed indicator re
Yakvenalex [24]

Answer:

40000ftMSL

Step-by-step explanation:

We know that airspeed is measured using a pilot tube

And the air pressure is a function of density given as

Pressure= 1/2 xdensityx V²

So at 40,000ftMSL

Is this is replaced for V in the equation then the density of air will be 1/4 that of sea level

So since we are deriving velocity from pressure and pressure is 1/4 so the velocity Will be half of its pressure since velocity is squared from The equation above

5 0
3 years ago
Is b intersection c = to b union c ​
aleksklad [387]

Answer:

no.

Step-by-step explanation:

<em>b ∩ c   </em>is the values that appear in both  <em>b</em>  and  <em>c</em>.

<em>b ∪ c</em>   is all the values in  <em>b </em> and  <em>c.</em>

8 0
3 years ago
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