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denis-greek [22]
2 years ago
5

What must be true when solving a quadratic equation when using factoring?

Mathematics
1 answer:
Zigmanuir [339]2 years ago
7 0

Answer:

Step-by-step explanation:

The function must be factorable.

For example, x^2 + x - 6= 0  factors to (x + 3)(x - 2) = 0 so the roots are -3 and 2.

x^2 + x - 7 = 0  will not factor so you need another method to solve this.

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What is the area of this composite figure?
anygoal [31]

Answer:

<em>Well, Your answer will be is </em><em>D. 100 feet squared. </em><em>Because, </em>

<em>1. Multiply 10x6 and 10x4. </em>

<em> </em>

<em>2. Add 60 and 40, the results from the previous step. </em>

<em> </em>

<em>3. You get 100, or 100 feet squared. </em><em>Good Luck!</em>

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3 0
2 years ago
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36 kg bag of cement was dropped losing one tenth of cement. How much was left in the bag of cement ?
kow [346]

Answer:

32.4kg

Step-by-step explanation:

if it loses one tenth of cement;

36kg×1/10

36kg/10

3.6kg was lost

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Write down the solution set for x&lt;3 in the set of natural numbers.
Gre4nikov [31]

Answer:

domain:{ [3, ∞], int}

Step-by-step explanation:

this is every possible number that is an integer, so domain:{ [3, ∞], int}

note that the format may be different

4 0
2 years ago
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17 out 22 what percentage is correct
SVETLANKA909090 [29]
The answer is <span>77.2727272727273% hopw this help

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5 0
3 years ago
Can someone plz help me solved this problem! I’m giving you 10 points! I need help plz help me! Will mark you as brainiest!
sergeinik [125]

Answer:

a). 8(x + a)

b). 8(h + 2x)

Step-by-step explanation:

a). Given function is, f(x) = 8x²

    For x = a,

    f(a) = 8a²

    Now substitute these values in the expression,

    \frac{f(x)-f(a)}{x-a} = \frac{8x^2-8a^2}{x-a}

                  = \frac{8(x^2-a^2)}{(x-a)}

                  = \frac{8(x-a)(x+a)}{(x-a)}

                  = 8(x + a)

b). \frac{f(x+h)-f(x)}{h} = \frac{8(x+h)^2-8x^2}{h}

                      = \frac{8(x^2+h^2+2xh)-8x^2}{h}

                      = \frac{8x^2+8h^2+16xh-8x^2}{h}

                      = (8h + 16x)

                      = 8(h + 2x)

4 0
3 years ago
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