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3 years ago

HELP!!! FINAL TEST AND ITS DUE IN ONE HOUR!! WILL REPORT IF SPAWM

Mathematics

1 answer:

Pepsi [2]3 years ago

6 0

Answer:

yeah here I's the answer

Step-by-step explanation:

Weights of adult males are normally distributed with a mean of u = 85.5 kg and a standard deviation of o= 17.7 kg. If a sample yields x = 80 kg, how many standard deviations is this away from the mean? What is the probability that another sample of size is n=1000 has mean < 80kg? (Hint: Use the Central Limit Theorem.)

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If 4x+(y+x)=180 what is x? what is y?

uysha [10]

Step-by-step explanation:

$4x+(y+x)=180\\\\\text{Solve for}\ x:\\\\4x+y+x=180\qquad\text{combine like terms}\\\\(4x+x)+y=180\qquad\text{subtract}\ y\ \text{from both sides}\\\\5x=180-y\qquad\text{divide both sides by 5}\\\\\dfrac{5x}{5}=\dfrac{180-y}{5}\\\\\boxed{x=\dfrac{180-y}{5}}\\\\\text{Solve for}\ y:\\\\5x+y=180\qquad\text{subtract}\ 5x\ \text{from both sides}\\\\\boxed{y=180-5x}$

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3 years ago

Two angles are complementary. If one angle measures 25 degrees, what is the measure of the second angle?

Daniel [21]

The answer would be c

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3 years ago

Find the width of the rectangle prism when the surface area is 208 square centimeters

Pepsi [2]

Without more information, I assume it's a square and it's w/l =6.5 cm

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3 years ago

Please help to prove parallelogram.

tino4ka555 [31]

The question requests proof that WV = VR. See the definition of Mathematical proof and the explanation for the proof below.

<h3>What is a mathematical proof?</h3>

Mathematical proof refers to the steps of logical arguments which are given to show that a mathematical statement is true or correct.

<h3>What is the proof that WV = VR?</h3>

Note that SR ║ QT;

Reason: This is given. The image is a parallelogram.

Hence, ∠PSR = ∠WVP
Reason: Alternate angles formed by two parallel lines crossing each other

Hence, SV = PVReason: This is given by the annotation on the image

Therefore: ΔSVR ≅ PVW

Reason: They are formed by two parallel lines crossing each other.

Therefore if ΔSVR ≅ PVW;

Then WV = VR.

QED.

Learn more about proofs at:
brainly.com/question/25927269
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8 0

2 years ago

Identify the level of measurement of the data, and explain what is wrong with the given calculation. In a survey, the hair col

belka [17]

Answer:

This type of data are not measurement of anything , so it is not feasible to calculate their average(Mean)

Step-by-step explanation:T

The data are at the level of measurement that are Nominal

In level of nominal measurement, letters, numeric and alpha-numeric, words, symbols are used to classify data in the example stated.

Now we recall that,

Brown hair = 100,

Blond hair = 200,

Black hair = 300

Anything else = 400

Thus, 100, 200, 300, 400 are used as code numbers for hair colors and does not have any importance to their values numerically.

There is no arithmetic solutions such as average, total which cannot be solved using these numbers.

Therefore the average mean calculated is not feasible

7 0

4 years ago

Read 2 more answers