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3 years ago

Y - 3 = 5(x + 7) graph

Mathematics

2 answers:

Digiron [165]3 years ago

8 0

Answer:

y=5x+38

Step-by-step explanation:

y-3=5(x+7)

y-3=5x+35

y=5x+38

To plot on a graph use the y intercept (38) to start. then go up 5 and over 1.

drek231 [11]3 years ago

4 0

Answer:

Step-by-step explanation:

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What is the probability that a 44% free throw shooter will miss her next free throw?

stellarik [79]

The probability is 56/100 or 56%. Because they only got 44% of their previous throws, the probability that they'll miss the next one is 56%.

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3 years ago

Solve the equation 4x-6= 34. Write a reason for each numbered step.

OLEGan [10]

Answer:

Steps:

4x - 6 = 34

Add 6 to both sides

4x - 6 + 6 = 34 + 6

Simplify:

4x = 40

Divide both sides by 4

4x/4 = 40/4

Simplify:

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3 years ago

The length of country and western songs is normally distributed and has a mean of 170 seconds and a standard deviation of 40 sec

Serga [27]

Answer: 0.1210

Step-by-step explanation:

Given : The length of country and western songs is normally distributed with $\mu=170 \text{ seconds}$

$\sigma=40\text{ seconds}$

Sample size : $n=16$

Let x be the length of randomly selected country song.

z-score : $z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

$z=\dfrac{158.30-170}{\dfrac{40}{\sqrt{16}}}\approx-1.17$

The probability that a random selection of 16 songs will have mean length of 158.30 seconds or less by using the standard normal distribution table will be

= $P(x\leq158.30)=P(z\leq-1.17)$

$=0.1210005\approx0.1210$

Hence, the probability that a random selection of 16 songs will have mean length of 158.30 seconds or less is 0.1210

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4 years ago

It costs $15 to get into the fair and then costs $8 for every ride I go on. I spent a total of $79. Write an equation and solve

Neporo4naja [7]

Let x = the number of ride you went on

$79 = $15 + $8x

To solve for how many rides you went on, subtract 15 from each side.

$64 = $8x. Divide each side by 8.

8 = x.

You went on 8 rides

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3 years ago

The Donovan’s pool system cleans 35 gallons of water every 1/4 hour. How many gallons of water are cleaned in 5 hours?

Vladimir [108]

35 gallons x gallons

------------- = ---------

1/4 hour 5 hours

using cross products

35 * 5 = 1/4 * x

175 = 1/4 x

multiply each side by 4

175 * 4 = 1/4 *4x

700 = x

700 gallons are cleaned in 5 hours

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3 years ago