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insens350 [35]
3 years ago
6

Evaluate the equation.d – 4.12 = 12.8

Mathematics
1 answer:
xxMikexx [17]3 years ago
5 0
I think its 16.16 as the answer

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Factor this equation 75k^2+30k=-3
Solnce55 [7]

Answer:

k=-1/5

Step-by-step explanation:

Factor and set each factor equal to zero.

Add 3 to both sides of the equation.

75k^2+30k+3=0

Factor 3 out of 75k^2+30k+3.

Factor using the perfect square rule.

Divide each term by 3 and simplify.

Set the 5k+1 equal to 0.

Solve for k.

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When you type in a question...it what pops up the answer???
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Meg surveyed some students at her school about their favorite professional sports. Of the students surveyed, 2 said football was
elixir [45]

Answer:

\frac{1}{5}

Step-by-step explanation:

Assuming a total of ten students were asked, \frac{2}{10} chose football and \frac{8}{10} chose other sports. \frac{2}{10} simplified is \frac{1}{5}, so that's the experimental chance that the next student favors football.

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Does the following infinite series converge or diverge? And does it or does it not have a sum 1/3-2/9+4/2718/81+...
Kaylis [27]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
The length of a rectangle is 7 more than the width the area is 744 square centimeters find length and width of rectangle
andrezito [222]

Answer:

l=31\ cm\\\\w=24\ cm

Step-by-step explanation:

The formula that is used to calculate the area of a rectangle is:

A=lw

Where "l" is the lenght and "w" is the width.

You know that the area of that rectangle is:

A=744\ cm^2

And, according to the exercise, its lenght is 7 more than its width; then:

l=w+7

Then, you can make the corresponding substitution into the formula A=lw:

 744=(w+7)w

Simplify:

744=w^2+7w\\\\w^2+7w-744=0

Factor the equation. Find two numbers whose sum is 7 and whose product is -744. These are 31 and -24.

Then, you get:

(w-24)(w+31)=0\\\\w_1=24\\\\w_2=-31

The width of the rectangle is the positive value:

w=24\ cm

Then, the lenght is:

l=24+7\\\\l=31\ cm

8 0
3 years ago
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