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3 years ago

What are the solutions of the equation? y=-7(x-3)(x+4)

Mathematics

1 answer:

Shkiper50 [21]3 years ago

3 0

Answer:

{-4, 3}

Step-by-step explanation:

To find "solutions," you must set this function equal to zero:

y = -7(x - 3)(x + 4) = 0

and then set each factor equal to 0 separately and solve each resulting equation for x:

x - 3 = 0 yields x = 3, and

x + 4 = 0 yields x = -4

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Solve x2 − 10x = −13.

aev [14]

Answer:

Step-by-step explanation:

First, let's rearrange the given equation into something more recognizable. If we add 13 to both sides, we now have the polynomial $x^{2}-10x+13$ . We can now use the quadratic formula to solve.

Remember that the quadratic formula is

$\frac{-b+/-\sqrt{b^{2}-4ac } }{2a}$

Substitute the numbers from the equation into the formula.

$\frac{-(-10)+/-\sqrt{(-10)^{2}-4(1)(13) } }{2(1)}$

Simplify:

$\frac{10+/-\sqrt{100-52} }{2}$

$\frac{10+/-\sqrt{48} }{2}$

Here, I'm going to assume that there was a mistype in option B because if we divide out the 2 we end up with $5+/-\sqrt{48}$ .

Hope this helps!

6 0

2 years ago

What is 75 over 100 in lowest terms

lorasvet [3.4K]

The answer is 3/4!!!!!

6 0

2 years ago

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Which inequality best represents the situation that players on the junior varsity football team must weigh more than 119 pounds?

olga_2 [115]

The answer is A cuz it’s pointing right, which is greater than 119

7 0

3 years ago

Read 2 more answers

14. Ginny has 26 tests to correct. It takes her

katovenus [111]

Answer:

13 hours

Step-by-step explanation:

If she has 26 tests and it takes her Half an hour to correct each test, we know here's are two half an hour a in one hour so we can then divide 26 by 2 to get 13.

7 0

2 years ago

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Help me pleaseeee. due todayyy

zalisa [80]

Answer:

1.5

Step-by-step explanation:

The scale factor can be found by dividing the side length from triangle ABC by the corresponding side length from triangle ABC

so the scale factor would be equal to

12/8 and 9/6

9/6 = 1.5

12/8 =1.5

so we can conclude that the scale factor is 1.5

6 0

2 years ago