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Lera25 [3.4K]
3 years ago
6

Emeline can type at a constant rate of 1/4 mpages/minute. How many pages can she type in 1 hour (60 minutes)?

Mathematics
2 answers:
astraxan [27]3 years ago
8 0
If she types 1\4page per min she types 1 page in 4min
so she types 15 (60/4)pages in one minute
zzz [600]3 years ago
6 0

15 is the answer. You can get this by dividing 60 by 4 because she types a whole page every four minutes.

Hope this helps!


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Solve for x<br><br> x² + 10x + 25
Sonbull [250]

Hi,

Answer: (x+5)^2

<u>My work:</u> For this problem can be easily achieved by factoring your terms. To do this you figure out what can go into 10x and 25 which is 5. From the there you take x^2 and 10x and see what can take out which would be x. Your answer would be (x + 5)^2 or (x +5) (x + 5). This can be done in 2 easy steps!

<u><em>Numerical work:</em></u>

1.x^2 10x +25

Before this step figure out what goes into you equation.

2. (X + 5)^2 or (X+5) (X + 5)


7 0
3 years ago
Read 2 more answers
 
kirill115 [55]
<span>B. (1, –3)

</span><span>x – y = 4
8x + 2y = 2

1 - (-3) = 4
8(1) + 2(-3) = 
8 - 6 = 2
True

hope this helps</span>
7 0
3 years ago
Read 2 more answers
What is the maximum height of of Anna's golf ball? The equation is y=x−0.04x2.
elena-s [515]

Given:

The height of a golf ball is represented by the equation:

y=x-0.04x^2

To find:

The maximum height of of Anna's golf ball.

Solution:

We have,

y=x-0.04x^2

Differentiate with respect to x.

y'=1-0.04(2x)

y'=1-0.08x

For critical values, y'=0.

1-0.08x=0

-0.08x=-1

x=\dfrac{-1}{-0.08}

x=12.5

Differentiate y' with respect to x.

y''=(0)-0.08(1)

y''=-0.08

Since double derivative is negative, the function is maximum at  x=12.5.

Substitute x=12.5 in the given equation to get the maximum height.

y=(12.5)-0.04(12.5)^2

y=12.5-0.04(156.25)

y=12.5-6.25

y=6.25

Therefore, the maximum height of of Anna's golf ball is 6.25 units.

7 0
3 years ago
Yolanda went for a drive in her new car. She drove
GenaCL600 [577]
Her speed was 62.5 miles per hour.
5 0
3 years ago
simplify the following polynomial expression. <img src="https://tex.z-dn.net/?f=%285x%5E%7B3%7D%20%2B4x%5E%7B2%7D%20%2B6x-3%29%2
FrozenT [24]
Here is the answer hope it helps

7 0
3 years ago
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