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3 years ago

Solution set of 6x2=13x+5

Mathematics

1 answer:

Lena [83]3 years ago

6 0

Answer:

x = -1/3 x = 5/2

Step-by-step explanation:

6x^2=13x+5

Subtract 13x from each side

6x^2-13x=13x-13x+5

6x^2-13x=5

Subtract 5 from each side

6x^2-13x-5=5-5

6x^2-13x-5=0

Factor

(3x+1 )(2x - 5 ) =0

Using the zero product property

3x+1 =0 2x-5 =0

3x=-1 2x =5

x = -1/3 x = 5/2

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Find the area of a triangle whose height is 2x and base is 2x + 2.

wel

Answer: $2x^{2}+2x$

Step-by-step explanation:

1. You must apply the formula for calculate the area of a triangle, which is shown below:

$Area=\frac{base*height}{2}$

2. You know the height and the base, which are given in the problem. Then, you only need to substitute them into the equation shown above and simplify it, as following:

$Area=\frac{2x(2x+2)}{2}$

$Area=x(2x+2)\\Area=2x^{2}+2x$

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3 years ago

Mr. Jackson sold 3 computer monitors in the first year. In the second year, he sold 4 times as many monitors as in the first yea

GenaCL600 [577]

Answer:

There wasn't really a question here but for both the answers is

for year 2 we got 12 sales

for year 3 we got 18 sales

Step-by-step explanation:

since the first year Mr.Jackson sold 3 computer monitors then in the second year he must've multiplied the times he had sold it which means 4 x 3 which equals 12

as well as the third year, on the third year he sold 6 times the first year so it means 6 x 3 which equals 18

8 0

3 years ago

Read 2 more answers

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suter [353]

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6 0

4 years ago

In how many ways can 50 cards be chosen from a standard deck of 52 cards using permutations

kumpel [21]

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