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3 years ago

15

Help! Whoever answers first gets a thanks and Brainliest!

1 answer:

mafiozo [28]3 years ago

7 0

120+4w

4 new songs each week so that would be 4 multiplied by the number of weeks but we don’t have a number we just have a variable so that would be 4w

And there was already 120 songs so we want to add that in with the amount of songs added each week

120 + 4w

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In a normal distribution, what percent of the values lie above the mean?

Leya [2.2K]

In statistics, the 68–95–99.7 rule, also known as the empirical rule, is a shorthand used to remember the percentage of values that lie within a band around the mean in a normal distribution with a width of two, four and six standard deviations, respectively; more accurately, 68.27%, 95.45% and 99.73% of the values lie .

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4 years ago

Er uvay, vvildt is your average velocity!

timurjin [86]

The acceleration of the fire truck is 1.666 m/s².

<u>Step-by-step explanation:</u>

Acceleration is the measure of change in velocity with respect to time. So as the initial velocity of the fire truck is given as 0 km/hr and the final velocity is given as 66 km/hr. So at first the truck is at rest and on switching on the engine, the truck gets to the velocity of 66 km/hr in 11 seconds.

$\text { Acceleration }=\frac{\text {Change in velocity}}{\text {time}}$

But first the units of velocity should be changed from km/hr to m/s

1 hour = 3600 seconds

1 km = 1000 m

So, $66\ {k m}{h r}=\frac{66 \times 1000}{3600} m / s$

Converted Velocity = 18.33 m/s

Then, the acceleration will be

$\text { Acceleration }=\frac{18.33-0}{11}$

Acceleration = 1.666 m/s²

So, the acceleration of the fire truck is 1.666 m/s².

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4 years ago

Write a fraction as a mixed number 20/10

Anna11 [10]

To get 20/10 as a mixed number you would have to take 20 and divide it by 10. Once you do that your answer should be 2.

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4 years ago

On the left, prism A. Prism A is a triangular prism. The base has side lengths of 6 centimeters, 8 centimeters, and 10 centimete

Llana [10]

Answer:

Prism B has a larger base area

Step-by-step explanation:

Given

Base dimensions:

Prism A:

Lengths: 6cm, 8cm and 10cm

Prism B:

Lengths: 5cm and 5cm

Required [Missing from the question]

Which prism has a larger base area

<u>For prism A</u>

First, we check if the base dimension form a right-angled triangle using Pythagoras theorem.

The longest side is the hypotenuse; So:

$10^2 = 8^2 + 6^2$

$100 = 64 + 36$

$100 = 100$

The above shows that the base dimension forms a right-angled triangle.

The base area is then calculated by;

Area = 0.5 * Products of two sides (other than the hypotenuse)

$Area = 0.5 * 8cm * 6cm$

$Area = 24cm^2$

<u>For Prism B</u>

$Lengths = 5cm\ and\ 5cm$

So, the area is:

$Area = 5cm * 5cm$

$Area = 25cm^2$

<em>By comparison, prism B has a larger base area because </em> $25cm^2 > 24cm^2$ <em></em>

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3 years ago

Which equation would have the steepest graph? Explain how you know?

nordsb [41]

Answer:

y = 3/8 x

Step-by-step explanation:

the smaller the number the steeper the graph

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3 years ago