In a word problem, instead of calling it the slope, we call it the starting point instead.

2 answers:

8 0

It is true that in a word problem, instead of calling it the slope, we call it the starting point instead.
Although the two terms are interchangeable, in presenting the mathematical question, we need to use the term starting point so as to refer to the place where the slope starts, and not the whole slope.

vladimir1956 [14]4 years ago

8 0

The correct answer is true

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A football is punted from a height of 2.5 feet above the ground with an initial vertical velocity of 45 feet per second.

Vikentia [17]

Answer:

1.451 seconds. Hurry.

Step-by-step explanation:

The position(height, h) of the foot ball will be given by the equation:

h = -32.2t^2 + 45t + 2.5

The term -32.2t^2 consists of the acceleration caused by gravity at Earth's surface ( -32 ft/sec^2) and the term +45t accounts for the initial velocity. The + is assigned since the ball is moving vertically from ground. The negative sign in -32t^2 is due to the acceleration being towards ground. The term 2.5 accounts for the fact that the initial height of the ball is 2.5 feet above ground.

We can either calculate or graph with this function to find the time the ball spends in the air:

<u>Calculate: </u>

h = -32.2t^2 + 45t + 2.5

We need a value of t that would cause h to be 5.5 feet, the level it was caught:

5.5 = -32.2t^2 + 45t + 2.5

-32.2t^2 + 45t + 2.5 = 5.5

-32.2t^2 + 45t -3.0 = 0

Solve for t using the quadratic formula. I get a value of 1.33 seconds.

<u>Graph:</u>

See the attached graph. It confirms the 1.33 second value

8 0

2 years ago

Stephen spends 10% of his salary on food, 15% of it on transportation, and saves the remaining 2000. what is his salary?

Ber [7]

Answer:

His salary is $2666.68

Step-by-step explanation:

First add the percent of the costs. 10% + 15% = 25%

Then subtract 25% from 100% to find the percentage that 2,000 is of the total salary. 100% - 25% = 75%

$2,000 is 75% of the total salary. Divide 2,000 by three to find the amount of money 25% of the salary is. ( 75% is 3/4 of 100) 2,000 divided by 3 = $666.67

25% of the salary is $666.67

Multiple that by 4 and you get the total salary.

666.67•4= $2666.68

Are you sure those were all the correct numbers because that was not a very nice number at the end there lol but that answer is correct with the numbers you gave me.

5 0

4 years ago

A 5–foot string of lights will be attached to the top of a 4–foot pole for a holiday display. How many feet from the base of the

wel

Answer:

Step-by-step explanation:

The lights and pole form a right triangle. The question gives the hypotenuse as 5 and one side length as 4.

Use the Pythagorean theorem: $a^2+b^2=c^2$ .