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3 years ago

Interpret or describe what the following statement means: P(-8) = 12.

Mathematics

1 answer:

Morgarella [4.7K]3 years ago

5 0

It could mean a variety of things. Assuming P is a function, ...

When the function whose name is P is evaluated with the independent variable having the value -8, the result is 12.

_____

If P is a variable, it means that multiplying P by -8 gives a result of 12.

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The number of miles Ford trucks can go on one tank of gas is normally distributed with a mean of 350 miles and a standard deviat

kati45 [8]

Answer:

The probability that a randomly chosen Ford truck runs out of gas before it has gone 325 miles is 0.0062.

Step-by-step explanation:

Let X = the number of miles Ford trucks can go on one tank of gas.

The random variable X is normally distributed with mean, μ = 350 miles and standard deviation, σ = 10 miles.

If the Ford truck runs out of gas before it has gone 325 miles it implies that the truck has traveled less than 325 miles.

Compute the value of P (X < 325) as follows:

$P(X$

Thus, the probability that a randomly chosen Ford truck runs out of gas before it has gone 325 miles is 0.0062.

7 0

3 years ago

Amy received a $80 gift card for a coffee store. She used it in buying some coffee that cost $8.24 per pound. After buying the c

SVEN [57.7K]

Answer:

5 pounds

Step-by-step explanation:

Given that:

Amount of gift card = $80

Cost of coffee per pound = $8.24

Amount left in the card = $38.80

To find:

Number of pounds of coffee bought = ?

Solution:

Let the number of pounds of the coffee bought = $x$ pounds

Cost of 1 pound = $8.24

Cost of $x$ pounds = $8.24 $\times x$

Writing the equation as per question statement:

$80 - 8.24x = 38.80\\\Rightarrow 80 - 38.80 = 8.24x\\\Rightarrow 8.24x = 41.2\\\Rightarrow x = \dfrac{41.2}{8.24}\\\Rightarrow \bold{x = 5\ pounds}$

Therefore, 5 pounds of coffee was bought.

3 0

3 years ago

You eat five slices of bread your friend eats two slices fewer than you write an expression that describes the number of slices

lianna [129]

Answer:

No. Of slices my friend eats = No. Of slices eaten by me - No. Of slices my friend eats fewer than me

= 5 - 2

= 3

Hope this helps!

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3 years ago

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AVprozaik [17]

Answer:

the answer of this question is 1.25

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