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3 years ago

Slope-Intercept Form Word Problems

Mathematics

1 answer:

melomori [17]3 years ago

7 0

Answer:

1a. y=550(8) + 25

1a. the yer of this problem is 25 because it is a real number. it represents your Y-intercept because they are getting paid $550 an hour and getting paid an additional $25 for doing the job. The slope of this problem would be $550 because that is how much they are getting paid an hour.

2. What you would need to do is take 500/5 and 500/56 and that would give you how ever many bags you can buy per lawn sediment. (you really don't need to write an equation for the next part even though it says you need one)

2.y=500/5 and y=500/56

Step-by-step explanation:

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Suppose the time to complete a 200-meter backstroke swim for female competitive swimmers is normally distributed with a mean μ =

hammer [34]

Answer:

The swimmer must complete the 200-meter backstroke in no more than 130 seconds.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 141, \sigma = 7$

Fastest 6%

At most in the 6th percentile, that is, at most a value of X when Z has a pvalue of 0.07. So we have to find X when Z = -1.555.

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

$-1.555 = \frac{X - 141}{7}$

$X - 141 = -1.555*7$

$X = 130$

The swimmer must complete the 200-meter backstroke in no more than 130 seconds.

3 0

3 years ago

A triangle with sides lengths of 5 and 8 solve for x

Elina [12.6K]

The lengths of two sides is not enough information to determine a unique triangle. There are an infinite number of possible correct answers. If 'x' is the length of the third side, then its length can be anything between 3 and 13.

5 0

4 years ago

He hypotenuse of a right triangle is three times the length of one of the legs. the length of the other leg is 648‾‾‾‾√648 feet.

pantera1 [17]

Let length of the hypotenuse = 3x and length of given leg be x feet.

then (3x)^2 = x^2 + 648
8x^2 = 648
x^2 = 81

so x = 9 and 3x = 27

Hypotenuse is 27 feet and the leg equals 9 feet.

4 0

3 years ago

Adam celebrated his eighteenth birthday with friends at a Chinese restaurant. The bill came to $287.69 without tax. The service

VARVARA [1.3K]

Answer:61.4

Step-by-step explanation:

8 0

3 years ago

GEOMETRY HELP ME

Aleksandr [31]

Answer:

x= 110°

Step-by-step explanation:

if you continue drawing the top purple line you will have a triangle with three angles

70° ; is given

180-140= 40°; is the same angle as the supplement angle of 140° (complementary angles are congruent)

180-70-40 = 70°; because sum of angles in a triangle is 180°

So angle x= 180 -70 = 110 because are a linear pair

6 0

3 years ago

Read 2 more answers