06/02/21

The flight of one type of rocket is described by a function h = −5(t − 3)2 + 50, where h is the height of the rocket, in metres, and t is the time, in seconds, since the rocket was fired.

a. What was the max height of the rocket?b. At what time the max height was reached?c. What was the initial height of the rocket?d. What was the height of the rocket after 2 seconds of the flight?... more

What is the nexxt number in this sequence?

10 5 8 4 7 3.5 6.5 ?Answer Choices:2.5, 1.5, 4.25, 3.25, 3, 5.25

06/02/21

Trigonometric function

Suppose the terminal arm for the angle theta passes through the point (1,-4) a). Draw the angle from the standard position and determine the length of the radius. b). Find all 6 trigonometric... more

06/02/21

I neeed help with math

Express the following fraction in the simplest form using only positive exponents.(5s3)2 2s8

Statistics Question, urgent help

Which formula is used? Explain whyShow all steps please I really don't understand

Statistics Question, please explain steps

Please explain all steps, thank you. Which formula is used?Why is it not 0.82(0.7) + x(0.9) / 0.7 + 0.9?

Integrals Problem

Find ∫05 f(x)dx iff(x)={3 for x<3 {x for x≥3.

Integrals Problem

∫410 f(x)dx − ∫49f (x)dx = ∫ab f(x)dxwhere a= and b=

Integrals Problem

Given that 7≤f(x)≤10 for 1≤x≤4, estimate the value of ∫14 f(x)dx ....... ≤ ∫14 f(x)dx ≤ ......

need help asap! thanks!

A. Explain the procedure (but don't create the graph) for graphing the quadratic function in vertex form f(x) = 2(x - 3)2 - 1 using pencil and paper. Your explanation should show your understanding... more

06/02/21

How many gallons?

How many gallons of a 80​% antifreeze solution must be mixed with 100 gallons of 20​% antifreeze to get a mixture that is 70​% antifreeze? Use the​ six-step method.

06/02/21

What was her average speed on Friday​?

It took Ellen 2.7 hours to drive to her​ mother's house on Thursday morning. On her return trip on Friday night, traffic was​ heavier, so the trip took her 3 hours. Her average speed on Friday was... more

06/02/21

How many of each denomination of coins does he​ have?

A man has a box of coins that he uses when playing poker with friends. The box currently contains 35 coins, consisting of​ pennies, dimes, and quarters. The number of pennies is equal to the number... more

Which of the following word problems can be solved using the equation 4x+6=34? Select all that apply.

Which of the following word problems can be solved using the equation 4x+6=34?Select all that apply.A. Maria has 6 one dollar bills and some quarters, totaling $34. How many quarters doesshe... more

06/02/21

Find the quotient of the following using long division and synthetic division. (I badly need someone's help😣)

2x4-9x3+9x2+5x-1÷(2x+1) 2x3+4x2-x-12÷(x+4)

Basic math fractions!

Joseph had 3 gallons of lemonade. He wanted to give each of his 1/8friends of a gallon. How many friends would receive lemonade?​

college algebra help

Shaun invests $5800 in two different accounts. The first account paid 7 %, the second account paid 9 % in interest. At the end of the first year he had earned $490 in interest. How much was in each... more

A 19 -ft ladder leans against a building so that the angle between the ground and the ladder is 79 ∘ 79 ∘ . How high does the ladder reach on the building?

A 19-ft ladder leans against a building so that the angle between the ground and the ladder is  79 degreesHow high does the ladder reach on the building? ft=

06/01/21

i need help plsssss

Mary Lou is three times George’s age and Kate is three years younger than George. The sum total of their ages is 17. How old is each person?

06/01/21

What the ferries

A ferries wheel is 10 meters in diameter and boarded from a platform that is 1 meters above the ground. The six o’clock position on the ferries wheel is level with the loading platform. The wheel... more

please explain clearly thank you this is precalculus by the way

If csc ( x ) = 7 , for 90 ∘ < x < 180 ∘ , thensin ( x/2 ) =cos ( x/2 ) =tan ( x/2 ) =

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