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2 years ago

I need help solving this

Mathematics

1 answer:

max2010maxim [7]2 years ago

5 0

Answer:

sorry cant help u

Step-by-step explanation:

im bad at this

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What is solution to this equation 4x=124

kkurt [141]

4x= 124

divide both sides by 4 to get x by itself

4x/4= 124/4

Cross out 4 and 4, divide by 4 and then becomes 1*1*x= x

124/4

12/4= 3

4/4= 1

Answer: x= 31

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2 years ago

I Need Help Please with this problem

goldenfox [79]

ΔACD is similar to ΔBCD by AA similarity theorem

AD/AC = BD/BC

x/5 = 4.2/6

6x = 21

x = 3.5

Hope this helps! ;)

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2 years ago

Teacher has 1p she buys 10 boxes worth 10p how much does she have to pay

Levart [38]

100p? if you would like to explain what the variable p is i could help out

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2 years ago

Help with math please

JulijaS [17]

You can first multiply your coefficients (7x9), which gives you 63. You can then simplify the exponents by using the rule that when two terms with the same variable are being multiplied, you can simplify by adding exponents. Since 7+3= 10, your simplified answer would be 63x^10 :) hope it helped!

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3 years ago

The number of flaws per square yard in a type of carpet material varies with mean 1.4 flaws per square yard and standard deviati

oksian1 [2.3K]

According to the Central Limit Theorem, the distribution of the sample means is approximately normal, with the mean equal to the population mean (1.4 flaws per square yard) and standard deviation given by:
$\frac{\sigma}{ \sqrt{n} }=\frac{1.2}{ \sqrt{178} }=0.09$
The z-score for 1.5 flaws per square yard is:
$z=\frac{1.5-1.4}{0.09}=1.11$
The cumulative probability for a z-score of 1.11 is 0.8665. Therefore the probability that the mean number of flaws exceeds 1.5 per square yard is
1 - 0.8665 = 0.1335.

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3 years ago

I need help solving this​

I need help solving this