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3 years ago

Eat the right foods.

Mathematics

1 answer:

AysviL [449]3 years ago

7 0

Answer:

~r → ~p

Step-by-step explanation:

Let p represent "loose weight," let q represent "I exercise," and let r represent "the food is good."

pls mark me brainliest

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Given f(x) = -12x + 72, find x when f(x) = 24.

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Now consider the product of a nonzero rational number and an irrational number. Again, assume x = a/b, where a and b are integer

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3 years ago

The average ticket price for a Washington Redskins football game was $81.89 for the season. With the additional costs of parking

kicyunya [14]

Answer:

74.22% probability that a family of four will spend more than $400.

Step-by-step explanation:

Problems of normally distributed samples can be 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:

$\mu = 442.54, sigma = 65$

What is the probability that a family of four will spend more than $400?

This is 1 subtracted by the pvalue of Z when X = 400. So

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

$Z = \frac{400 - 442.54}{65}$

$Z = -0.65$

$Z = -0.65$ has a pvalue of 0.2578.

So there is a 1-0.2578 = 0.7422 = 74.22% probability that a family of four will spend more than $400.

8 0

3 years ago

Please solve with explanation

yan [13]

Answer:

The x coordinate of S is b.

Step-by-step explanation:

The coordinates of Point Q are:

(2a+2b)/2, 2c/2

= [(a + b), c].

The slope of the line AB

= (0-2c)/(2b-2a)

= -c/(b-a)

So The slope of the line QS = (b - a) / c = (b - a)/c.

Its equation is

y - c = (b - a)/c ( x - (a+b))

y = (b - a)/c ( x - (a+b)) + c.

The coordinates of Point P are:

(2a+0)/2, 2(c+ 0)/2

= (a, c)

The slope of the line AO

= (2c)/2a

= c/a

So The slope of the line PS = -a/c

Its equation is

y - c = -a/c(x - a)

y = -a/c(x - a) + c

So:

(b - a)/c ( x - (a+b)) + c

= -a/c(x - a) + c

(b - a)(x - a - b) + c^2 = -a(x - a) + c^2

(b - a)(x - a - b) = -a(x - a)

bx - ab - b^2 - ax + a^2 + ab = -ax + a^2

bx - ax + ax + a^2 - a^2 - ab + ab = b^2

bx = b^2

x = b = the x coordinate of S.

c). The point R has the same x coordinate as S So RS is perpendicular to OB.

3 0

3 years ago