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3 years ago

Find the AREA of the triangle below. Round your answer to the nearest tenth.

Mathematics

1 answer:

nordsb [41]3 years ago

7 0

Step-by-step explanation:

4+2+2+4+5 - 17

in nearest ten - 100 but i am not sure

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A quality control expert at Glotech computers wants to test their new monitors. The production manager claims they have a mean l

tankabanditka [31]

Answer:

The probability that the mean monitor life would be greater than 96.3 months in a sample of 84 monitors

P(X⁻ ≥ 96.3) = 0.0087

Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 95

Given that the standard deviation of the Population = 5

Let 'X' be the random variable in a normal distribution

Let X⁻ = 96.3

Given that the size 'n' = 84 monitors

Step(ii):-

The Empirical rule

$Z = \frac{x^{-} -mean}{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{96.3 - 95}{\frac{5}{\sqrt{84} } }$

Z = 2.383

The probability that the mean monitor life would be greater than 96.3 months in a sample of 84 monitors

P(X⁻ ≥ 96.3) = P(Z≥2.383)

= 1- P( Z<2.383)

= 1-( 0.5 -+A(2.38))

= 0.5 - A(2.38)

= 0.5 -0.4913

= 0.0087

Final answer:-

The probability that the mean monitor life would be greater than 96.3 months in a sample of 84 monitors

P(X⁻ ≥ 96.3) = 0.0087

3 0

3 years ago

If 600 cm2 of material is available to make a box with a square base and a closed top, find the maximum volume of the box in cub

dangina [55]

Area of the box:
A = 2 a² + 4 a h = 600 cm²
h = a ( the box is a cube )
A = 6 a² = 600 cm²
a² = 100
a = 10 cm
V = a³ = 10³ = 1000 cm³

4 0

3 years ago

The diameter of the circle above is 92 cm. What is the circumference of the circle? Use = 3.14

Mice21 [21]

C=d $\pi$
92×3.14
C=288.88

Hope this helps <3

8 0

3 years ago

A photograph is reduced by a scale factor of 3/8 . If the original length of the photograph was 20 inches, what is the length of

Ksju [112]

To solve this problem you must apply the proccedure shown below:

1. You have that the following information given in the problem above: The photograph is reduced by a scale factor of 3/8 and the original had a length of 20 inches,

2- Therefore you have:

length=20 inches-(20 inches x 3/8)
length=20 inches-7.5 inches
length=12.5 inches

3- Then, as you can see, the answer is: 12.5 inches.

8 0

3 years ago

Find the slope and intercept of the line 3x+3y=63

Irina-Kira [14]

Slopt in form ax+by=c is -a/b
-3/3=-1
slope is -1
intercept in form ax+by=c is c/b
63/3=9

slope is -1
intercept is at y=9

3 0

4 years ago