3 years ago

1. Which of the following equations would not

Mathematics

1 answer:

Katen [24]3 years ago

5 0

I think it’s “c” y=2x+8

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Sales tax on an item directly proportional to the cost of the items purchased. If the tax on a $400 item is $24, what is the sal

ArbitrLikvidat [17]

Answer:

$21

Step-by-step explanation:

This can be easily solved by fraction 400/24=350/x

x=$21

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3 years ago

27x^2y^4÷16yz^4×8z÷9xy^4

arlik [135]

I think that the answer is 3x/2yz^3 because I did [(27x^2y^4/16yz^4)*(8z/9xy^4)].

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What is the cube answer to 24

patriot [66]

Do you mean cube root because the cube root of 24 is 2.88 and other repeating decimals

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A set of average city temperatures in May are normally distributed with a mean of 20.66 ^\circ \text{C}20.66

Angelina_Jolie [31]

Answer:

0.9962

Step-by-step explanation:

The z score shows the number of standard deviations by which the raw score is above or below the mean. If the raw score is above the mean then the z score is positive but if the raw score is less than the mean then the raw score is negative. The z score is given by:

$z=\frac{x-\mu}{\sigma}\\ \\\mu=mean,\sigma=standard\ deviation, x=raw\ score$

μ = 20.66°C, σ = 2°C

For x < Singapore temperature, i.e. x < 26

$z=\frac{x-\mu}{\sigma} =\frac{26-20.66}{2}=2.67$

From the normal distribution table P(x < 26) = P(z < 2.67) = 0.9962

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3 years ago

All movies in a store are being discounted 30%. Let x represent the regular price of a

bagirrra123 [75]

D bc the price is 30 %

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