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Evgesh-ka [11]
2 years ago
15

Determine the equation of a parabola that intersects the x-axis at points (-2, 0) and (5, 0).

Mathematics
2 answers:
romanna [79]2 years ago
8 0

Answer:

The answer is B

Step-by-step explanation:

1) Since the roots are -2, and 5 we can write this

y=a(x+2)(x-5)

y=a(x²-5x+2x+10)

y=a(x²-3x -10)

2) Examining the options, we can see that all of those options have a=1

Then we can plug into that

y=a(x²-3x -10)

y=x² -3x -10

That's the same as

y=(x+2)(x-5) then its roots are x_1 =-2 , and x_2=5

SOVA2 [1]2 years ago
3 0

Answer:

B. y = x² - 3x - 10

Step-by-step explanation:

<em>good luck, i hope this helps :)</em>

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Find the value of Y <br><br> A. 4 √3<br><br> B. 16 <br><br> C. 8 √3 <br><br> D. 8
melomori [17]

Step-by-step explanation:

By Geometric mean property:

{y}^{2}  = 4 \times 12 \\  \therefore \:  {y}^{2}  = 48 \\ \therefore \:  {y} =  \sqrt{48}  \\ \therefore \:  {y} =  \sqrt{16 \times 3}  \\ \huge \red{ \boxed {\therefore \:  {y} =  4\sqrt{3} }}

Thus, option A) 4√3 is the correct answer.

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3 years ago
The system of equations
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Answer:

no solution

Step-by-step explanation:

y = x+1 and y = x + 2 don't touch because they are parallel

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7 0
3 years ago
Which expression is equivalent to 6r - 10 + 3r – 2?
EastWind [94]

Answer: There are no choices so unfortunately I can't give you an answer

Step -by-step explanation:

5 0
3 years ago
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Please help fast and i brainliest!!! What is the first step in solving the equation 3x2−6x+1=0 by completing the square? Write t
sashaice [31]

Answer:

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Triangles EFG and QRS are similar. The lengths of the sides of EFG are 72, 64, and 56. The length of the smallest side of QRS is
blsea [12.9K]

Answer:

180\ units

Step-by-step explanation:

we know that

If triangles EFG and QRS are similar

then

the scale factor is equal to the measure of the smallest side of triangle QRS divided by the smallest side of triangle EFG

so

Let

x-------> the smallest side of triangle QRS

y-------> the smallest side of triangle EFG

z-------> the scale factor

we have

x=140\ units, y=56\ units

substitute the values

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Find the length of the longest side of QRS

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3 years ago
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