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avanturin [10]
3 years ago
13

Math i need helpplease​

Mathematics
2 answers:
Tanzania [10]3 years ago
8 0

Answer:

what's the question

Step-by-step explanation:

there is no question for anyone to help you out

rewona [7]3 years ago
8 0
Answer: math

Have a nice day :)
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Please help me to find area of semicircle
mojhsa [17]

Answer:

Use a calculator and use the formula 1/2 × pi × (radius squared)

5 0
3 years ago
Factoring Trinomials
alexandr402 [8]
25 a² + 20 ab +  4 b²

for formula a^x+bx^ky^k+cy ^{2k } find  u,v such that: u.v = a

and u+v = b  then  group according to (ax ^{2k} +ux^ky^k)+(vx^ky^k+cy ^{2k} )

= (25a^2+10ab)+(10ab+4b^2)

factor out 5a from : 25a^2+10ab : 5a(2b+5a)

factor out 2b from : 10ab+4b^2: 2b(2b+5a)

= 5a(2b+5a) + 2b(2b+5a)

factor out : (5a+2b)

= (5a+2b)(5a+2b)

Refine:

(2b+5a)^2

hope this helps!.


3 0
4 years ago
Which inequality does this graph represent?
sp2606 [1]

Yea the Answer is B: 3y - 6x > -6

I used Desmos (Graphing Calculator)

5 0
3 years ago
Read 2 more answers
A line for tickets to a Broadway show had a mean waiting time of 20 minutes with a standard deviation of 5 minutes.
andrezito [222]

Answer:

5.48% of the people in line waited for more than 28 minutes

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean waiting time of 20 minutes with a standard deviation of 5 minutes.

This means that \mu = 20, \sigma = 5

What percentage of the people in line waited for more than 28 minutes?

The proportion is 1 subtracted by the p-value of Z when X = 28. So

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

Z = \frac{28 - 20}{5}

Z = 1.6

Z = 1.6 has a p-value of 0.9452.

1 - 0.9452 = 0.0548.

As a percentage:

0.0548*100% = 5.48%

5.48% of the people in line waited for more than 28 minutes

6 0
2 years ago
HELP ME PLS "A school is planning for an addition in some open space next to the current building. The existing building ends at
fgiga [73]

Answer:

y ≤ 3x

y > - 2x - 1

(1st choice)

Step-by-step explanation:

4 0
2 years ago
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