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zlopas [31]
3 years ago
5

What is the slop formula? A. Y2+Y1 / 2 B. a2 +b2 = c2 C. rise / run

Mathematics
1 answer:
Rasek [7]3 years ago
3 0
What formula? Keisnhsnsusnsjs
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Which statement best describes the equation x^5+x^3-14=0
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<span>The equation is not quadratic in for because it cannot be written as a second degree polynomial</span>
5 0
3 years ago
For bone density scores that are normally distributed with a mean of 0 and a standard deviation of​ 1, find the percentage of sc
gogolik [260]

Answer:

a) The percentage of bone density scores that are significantly high is 2.28%

b) The percentage of bone density scores that are significantly low is 2.28%

c) The percentage of bone density scores that are not significant is 95.44%

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.

a. significantly high​ (or at least 2 standard deviations above the​ mean).

This is 1 subtracted by the pvalue of Z = 2.

Z = 2 has a pvalue of 0.9772

1 - 0.9772 = 0.0228

2.28% of scores are signifcantly high

b. significantly low​ (or at least 2 standard deviations below the​ mean).

pvalue of Z = -2

Z = -2 has a pvalue of 0.0228

2.28% of scores are signicantly low.

c. not significant​ (or less than 2 standard deviations away from the​ mean).

pvalue of Z = 2 subtracted by the pvalue of Z = -2.

Z = 2 has a pvalue of 0.9772

Z = -2 has a pvalue of 0.0228

0.9772 - 0.0228 = 0.9544

95.44% of the scores are not significant

7 0
3 years ago
Salina’s age is one-quarter the age of her aunt. If a represents her aunt’s age, which expression represents Salina’s age?
ch4aika [34]
Salina is 1/4 of age of unt
s=1/4 times a
s=a/4
6 0
3 years ago
Read 2 more answers
Please help! Brainliest. No bots will be acceptable.
Vitek1552 [10]

Answer:

7.5 cups of raisins, 10 cups of peanuts and 5 cups of chocolate chips.

Step-by-step explanation:

We are given that,

The amount of ingredients needed for the trail mix are,

Raisins =  cup

Peanuts = 1 cup

Chocolate chips =  cup

Since, Kiran needs to make 10 cups of the trail mix.

The amount of ingredients needed will be,

Raisins =  =  = 7.5 cups

Peanuts = 1 × 10 = 10 cups

Chocolate chips =  = 5 cups

Hence, the ingredients needed are 7.5 cups of raisins, 10 cups of peanuts and 5 cups of chocolate chips.

5 0
3 years ago
Read 2 more answers
15 points !!<br> Estimate the solution to the following system of equations by graphing.
Marina86 [1]
For this case we have the following system of equations:
 -4x + 5y = 8
 6x - y = 11
 The solution is the ordered pair where both functions intersect. 
 In this case, the point of intersection is:
 (x, y) = (5/2, 7/2)
 Answer:
 (x, y) = (5/2, 7/2)
 option 1See attached image

6 0
3 years ago
Read 2 more answers
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