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3 years ago

Solve x2 – 2x – 15 = 0 using the zero product property.

Mathematics

1 answer:

Greeley [361]3 years ago

3 0

The roots or the Zeros of <span>x^2 – 2x – 15 = 0 would be
C. x=5, -3</span>

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Help please this is for my homework that is due to tomorrow!!

Murljashka [212]

The given polygons are similar

Step-by-step explanation:

By observing the given diagrams, we can see that the respective angles are congruent.

Two shapes are said to be similar if they have same shapes or one shape is created by uniformly increasing or decreasing the side of other.

For this purpose we find the scale factor of greater to smaller image, if the scale factor is same for each side then the two shapes are similar

So,

The scale factor is:

$\frac{EF}{AB} = \frac{3}{1} = 3\\\\\frac{FG}{BC} = \frac{9}{3} = 3\\\\\frac{GH}{CD} = \frac{15}{5} = 3\\\\\frac{EH}{AD} = \frac{21}{7} = 3$

We can see that the scale factor is same for all sides.

Hence,

The given polygons are similar

Keywords: Polygons, similarity

Learn more about polygons at:

#LearnwithBrainly

5 0

2 years ago

Given that 3x-y : x+2y = 2 : 5, Determine the ratio x:y

N76 [4]

Answer:

x : y = 9 : 13

Step-by-step explanation:

Given that

3x - y : x + 2y = 2 : 5

Express the ratio in fractional form, that is

$\frac{3x-y}{x+2y}$ = $\frac{2}{5}$ ( cross- multiply )

5(3x - y) = 2(x + 2y) ← distribute parenthesis on both sides )

15x - 5y = 2x + 4y ( subtract 2x from both sides )

13x - 5y = 4y ( add 5y to both sides )

13x = 9y ( divide both sides by 13 )

x = $\frac{9}{13}$ y ( divide both sides by y )

$\frac{x}{y}$ = $\frac{9}{13}$ , that is

x : y = 9 : 13

7 0

3 years ago

Write two expressions with a gcf of 8xy

ipn [44]

32x^2y
8xy^6
hope i helped

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3 years ago

What is the y-intercept of this line? Acellus, 10 points for answer.

Alexxx [7]

Answer:

y-intercept is ( 0 , 5 )

Step-by-step explanation:

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3 years ago

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OPEN THE FILE PLEASE ASAP I WILLL DO ANYTHING!!!!!!!!!!!!!!!!!!!!!!!

STatiana [176]

Answer:

I believe the answer you chose is correct. D

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3 years ago

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