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Daniel [21]
3 years ago
5

What is the √ 100 / 4x squared

Mathematics
1 answer:
Sholpan [36]3 years ago
4 0

Answer:

5/2x^2 or 2.5x^2 I think

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If given f(x) = –4x – 2 and g(x) = 2x, what is (f · g)(x)?
Rashid [163]

Answer:

-8x^2 -4x

Step-by-step explanation:

f(x) = –4x – 2

g(x) = 2x

 (f · g)(x) = (-4x-2) * (2x)

              distribute

             = -2x*4x -2x*2

            = -8x^2 -4x

4 0
3 years ago
The points (7,r) and (8,9) fall on a line with a slope of 5. What is the value of r?
mrs_skeptik [129]

Answer:

r = 4

Step-by-step explanation:

Calculate the slope m using the slope formula and equate to 5

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (7, r ) and (x₂, y₂ ) = (8, 9)

m = \frac{9-r}{8-7} = \frac{9-r}{1} = 9 - r = 5 ( subtract 9 from both sides )

- r = - 4 ( multiply both sides by - 1 )

r = 4

7 0
4 years ago
I don't understand this question.
OlgaM077 [116]
X - y > 2 at (5, 4)
5 - 4 > 2
1 > 2

(5, 4) is not a solution to this inequality
3 0
3 years ago
Two trains leave stations 546 miles apart at the same time and travel toward each other. One train travels at 95 miles per hour
Ira Lisetskai [31]

<u>Answer:</u>

It will take 2 hours 36 minutes for the two trains to meet.

<u>Step-by-step explanation:</u>

The distance between the two trains is decreasing by 95+115= 210miles per hour, which can be written as \frac{210 miles}{1 hour}.

So at this rate, the distance between the trains will be reduced to zero in:

\frac{546 miles}{\frac{210 miles}{1 hour} } = 476 miles * \frac{1 hour}{210 miles}

= \frac{546}{210} = 2.6 hours

Changing 2.6 hours to hours and minutes:

2 hours + 0.6 hours = 2 hours + (0.6 * 60) = 2 hours + 36 minutes

Therefore, it will take 2 hours 36 minutes for the two trains to meet.

6 0
3 years ago
Which of the numbers given below is an irrational number ?
Temka [501]

Answer:

<h2>2.14367............. is a irrational number.</h2>
5 0
3 years ago
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