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2 years ago

Find the value of the expression qXS+r for q = 2, r = 9, and s = 5. Submit

Mathematics

1 answer:

brilliants [131]2 years ago

6 0

Answer:

Step-by-step explanation:

Substitute the values and use the order of operations to find the correct value.

q · s + r

2 · 5 + 9

10 + 9

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An object is thrown straight up from the top of a 100-foot platform at a velocity of 48 feet per second. The height h(t) of the

julsineya [31]

Answer:

The maximum height is 136 ft

The time it takes to achieve this height is 1.5 s.

Explanation:

1. Function for the height (given):

$h(t)=-16t^2+48t+100$

2. Type of function

That is a quadatic function, whose graph is a parabola that opens downward.

The maximum of the function, i.e. the maximum height, is the vertex of the parabola.

The vertex of a parabola with the genral equation $y=ax^2+bx+c$ is at the x-coordinate

$x=-b/(2a)$

3. Time to achieve the maximum height

Substitute b with 48 and a with - 16:

$t=-48/(2(-16))=48/32=3/2=1.5$

Then, time when the object achieves the maximum height it 1.5s

4. Maximum height:

Replace t with 1.5 in the equation, to find the maximum height, h(1.5)

$h(1.5)=-16(1.5)^2+48(1.5)+100=136$

Then, the maximum height is 136 ft

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2 years ago

a plumber has a piece of pipe that is 2 meters long he needs to cut it into section of 10 centimeters long how many sections wil

ahrayia [7]

Since I can't post pictures in this answer, I will just tell you how to get the answer. For this question, you need to consider, how many centimeters go into 2 meters? Well, since 1 meter equals one hundred centimeters, 2 meters would equal 200 centimeters. And since we need to know how many 10 centimeter long sections there would be, then you need to divide 200 by 10. 200 divided by ten equals 20. So the answer would be 20 sections. The plumber is able to cut 20 sections. I hope that helped!

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2 years ago

Read 2 more answers

Question in Picture vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv

Crank

Answer:

Angle BOC = 28; Angle AOB = 21

Step-by-step explanation:

Because angle AOC = AOB + BOC you can set the equation:

2x+10 + 4x-15 = 49

6x - 5 = 49

6x = 54

x= 9

BOC = 2(9) +10 = 28

AOB = 4(9) - 15 = 21

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2 years ago

Lisa, an experienced shipping clerk, can fill a certain order in 13 hours. Felipe, a

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14 hours or 2 hours. Im not sure

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2 years ago

Which expression represent the distance between the point graphed below

agasfer [191]

The answer is A because when you plug in the points into the distance formula, you will get square root of 17 squared plus 17 squared. Hope this helps!

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2 years ago