3 years ago

Why are probability and statistics important?

1 answer:

7 0

Answer:

Studying probability and statistics will allow you to see the world from an entirely different perspective, since the subjects will give you the tools to model and analyze situations, which involve uncertainty.

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What is the solution to the equation t minus 15 = 76?

Phoenix [80]

Answer:

4. / D.

Step-by-step explanation:

$t-15=76\\t=76-15\\t=61$

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2 years ago

AJ purchased a new TV for $1200. The regular price of the TV was $1500.what percent did AJ save buying it on sale ?

svet-max [94.6K]

A. 20%

Work: 1500 x .20 = 300

1500 - 300 = 1200

Hope this helps!

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3 years ago

5. Kalen is trying to find the average of three measurements. The measurements are 13.8, 15.64, and 22.51. He adds the

Marrrta [24]

Answer:

if rounding by tenths 17.3 i’d rounding by hundredths 17.31 and thousandths 17.316

Step-by-step explanation:

most teachers say but off is thousandths be careful look what it’s asking for exactly

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3 years ago

A certain quantity grows exponentially over time. The initial quantity at t = 0 is 2,000. The quantity grows by a factor of 20%.

katovenus [111]

The quantity at t=8 is $8,599.63

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3 years ago

Read 2 more answers

A 20 ft. ladder is used against a 15 ft. wall. What is the measure of the angle made by the ladder and the ground (nearest whole

Brrunno [24]

Step-by-step explanation:

Given that,

The length of a ladder, H = 20 feet

The height of the wall, h = 15 ft

We know that,

$\sin\theta=\dfrac{h}{H}$

h is perpendicular and H is hypotenuse

So,

$\sin\theta=\dfrac{15}{20}\\\\\theta=\sin^{-1}(\dfrac{15}{20})\\\\\theta=48.59^{\circ}$

Now using Pythagoras theoerm,

$b=\sqrt{H^2-h^2}\\\\b=\sqrt{20^2-15^2}\\\\b=13.2\ ft$

Hence, the angle made by the ladder and the ground is 48.59° and the ladder is 13.2 feet from the wall on the ground.

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3 years ago