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3 years ago

9

PLEASSS HELP!!!!!!! I REALLY NEED HELP!!

1 answer:

loris [4]3 years ago

6 0

Answer:

$\underline{ \boxed{x = 11} } \\ \underline{ \boxed{ABE = 55}}$

Step-by-step explanation:

$if \: the \: question \: is \to \\ \overline{AZ} \: \perp \: \overline{CD}, \: m \angle{ABE} = 5x, \\ and \\ \: m \angle{EBD } = 3x + 2\\ but \: m \angle{EBD } + m \angle{ABE} = 90 \\ hence \to \\ (3x + 2) + (5x) = 90 \\ 8x + 2 = 90 \\ 8x = 90 - 2 \\ 8x = 88 \\ x = \frac{88}{8} \\ \boxed{ x = 11} \\ \\ if \: x = 11, \: then \to \\ m \angle{ABE} = \: 5x = 5(11) \\ \boxed{m\angle{ABE} =55}$

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William made 100 cupcakes this week. He baked 4 more than three times the total she made last week. Write an equation to find ou

evablogger [386]

I believe the answer is B.

It says that he made 100 cupcakes so we know that the total is 100. It says he baked 4 more than so that means that we are adding 4 to some value. It also says that he baked 3 times the total of cupcakes he made last week. Since the total for last week is unknown, we can express that as x.

So, your equation would be 3x+4=100.

Hope this helps!

5 0

3 years ago

7253(8x4v) when v = 13

Fittoniya [83]

Answer:

3039007

Step-by-step explanation:

V= 13

Substitue (v) for 13

7253(8*4(13))

Go by the rules be PEMDAS

First you the parentheses

4 times 13= 52

52 times 8= 416

Now you just multiply the two numbers

416 times 7253= 3039007

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3 years ago

Read 2 more answers

Square root of 3<br> Square root of 36<br> Square root of 9<br> Which number is irrational?

coldgirl [10]

Answer:

Square root of 3

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Math question down below

julsineya [31]

This data set has no outliers, because all of the numbers are close together.

6 0

3 years ago

he life of light bulbs is distributed normally. The variance of the lifetime is 625 and the mean lifetime of a bulb is 540 hours

almond37 [142]

Using the normal distribution, it is found that there is a 0.877 = 87.7% probability of a bulb lasting for at most 569 hours.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

$Z = \frac{X - \mu}{\sigma}$

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

$\mu = 540, \sigma = \sqrt{625} = 25$

The probability of a bulb lasting for at most 569 hours is the <u>p-value of Z when X = 569</u>, hence:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{569 - 540}{25}$

Z = 1.16

Z = 1.16 has a p-value of 0.877.

0.877 = 87.7% probability of a bulb lasting for at most 569 hours.

More can be learned about the normal distribution at brainly.com/question/24663213

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8 0

2 years ago