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3 years ago

11

there are 9 pens in a pack. ms ochoa buys 9 packs. after giving her student some pens she has 27 pens left. how many pens did sh

e give away?

1 answer:

ivolga24 [154]3 years ago

7 0

Answer:

54 pens

Step-by-step explanation:

9pens*9packs=81 pens

81

- 27

------

54

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lana [24]

Answer:

so what are we trying to figure out?

Step-by-step explanation:

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3 years ago

Mr. Smith is unhappy with the 2 foot concrete walkway around the edge of the pool. He decides to

nirvana33 [79]

Given that the total area of the walkway and the pool is w²+17w+66, and the width w, will be found as follows:
A=length×width
A=w²+17w+66
to get the new width we need to factorize the above quadratic form
A=w²+17w+66
=w²+11w+6w+66
=w(w+11)+6(w+11)
=(w+11)(w+6)
From the answer, the width=6 units, length=11 units

5 0

3 years ago

The function h is defined as follows.

JulsSmile [24]

Answer:

The equation you are given is a quadratic. The standard form of a quadratic is y = a(x-h)2 + k where (h,k) is the vertex of the graph, which is a parabola. Vertically moving the graph 4 units upward means that you are moving k +4 units.

y = a(x-h)2 + k standard form

y = 5x2 - 4 original equation

y = 5(x-0)2 - 4 re-written in standard form

h = 0 k = -4

Four (4) units up is k + 4--->-4 + 4 = 0.

Therefore, f(x) = 5x2 + 0--->f(x) = 5x2.

Step-by-step explanation:

hope this helps

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3 0

2 years ago

In a sphere, if the radius is tripled, how much more volume do you have?

lilavasa [31]

If the radius is tripped, the volume will increase by 3^3 = 27 times.

Answer: 27 times

3 0

3 years ago

Help me plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz tired

LenKa [72]

So, y-intercept is (0,3) and x-intercept is (3/7,0)

Step-by-step explanation:

We are given:

$y=-7x+3$

We need to find y-intercept and x-intercept

Finding y-intercept

To find y-intercept we put x =0

Solving:

$y=-7x+3\\y=-7(0)+3\\y=3$

So, y-intercept is (0,3)

Finding x-intercept

To find x-intercept we put y =0

Solving:

$y=-7x+3\\0=-7x+3\\-7x=-3\\x=-3/-7\\x=3/7$

So, x-intercept is (3/7,0)

So, y-intercept is (0,3) and x-intercept is (3/7,0)

Keywords: x and y intercepts

Learn more about x and y intercepts at:

#learnwithBrainly

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3 years ago