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2 years ago

Choose the inverse of y = x2 – 10x.

Mathematics

2 answers:

ella [17]2 years ago

6 0

The answer is (5,-25)

aivan3 [116]2 years ago

3 0

Answer: the answer is D

Step-by-step explanation:

on edge the answer is D

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A Student Who Is 60 Inches Tall Measured Shadows To Find The Height Of A Tree. The Students Shadow Was 24 Inches Long, And The S

True [87]

There are a many ways to solve this question, but this is the easier way:

60/x = 24/13
780 = 24x
32,5 = x or x = 32,5

7 0

2 years ago

Suppose that the probabilities are 0.4, 0.3, 0.2, and 0.1, respectively, that 0, 1, 2, or 3 power failures will strike a certain

defon

Answer:

mean = 1 power failure

variance = 1 (power failure)²

Step-by-step explanation:

Since the mean is computed as

mean = E(x) = ∑ x * p(x) for all x

then for the random variable x=power failures , we have

mean = ∑ x * p(x) = 0 * 0.4 + 1* 0.3 + 2*0.2 + 3* 0.1 = 1 power failure

since the variance can be calculated through

variance = ∑[x-E(x)]² * p(x) for all x

but easily in this way

variance = E(x²) - [E(x)]² , then

E(x²) = ∑ x² * p(x) = 0² * 0.4 + 1²* 0.3 + 2²*0.2 + 3²* 0.1 = 2 power failure²

then

variance = 2 power failure² - (1 power failure)² = 1 power failure²

therefore

mean = 1 power failure

variance = 1 power failure²

7 0

2 years ago

Write one way to break apart the array. Then fine the product. 7x8

Over [174]

56 I hope this helped.

5 0

2 years ago

The family wants to determine if they can drive to the national park using Just one tank of gas in their car. Determine whether

Nataliya [291]

Answer:

The Fullers can reach the national park

Step-by-step explanation:

<u><em>The complete question is</em></u>

The Fuller family wants to drive to a national park. Some information about their trip is given in the table below.

Distance to national park 515 miles

Car’s gas tank capacity 20 gallons

Average gas mileage for car 26 miles per gallon

The family wants to determine if they can drive to the national park using just one tank of gas in their car. Determine whether the Fullers can reach the national park. Show your work or explain your answer.

we know that

The Average gas mileage for the car is 26 miles per gallon

That means

With 1 gallon the car runs 26 miles

using a proportion

Find out how many miles the car runs with 20 gallons (one tank of gas)

$\frac{26}{1}\ \frac{miles}{gallon}=\frac{x}{20}\ \frac{miles}{gallons}\\\\x=26(20)\\\\x=520\ miles$

Compare with the distance to the national park

$520\ miles>515\ miles$

therefore

The Fullers can reach the national park

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2 years ago

Joshua is 25 years old and has a high risk job making $72,000 a year. The insurance company charges him an extra 20% on top of h

eimsori [14]

I believe is $6,644...

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3 years ago

Read 2 more answers