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4 years ago

Question: (look at image above) (giving 25 points, please DONT COMMENT IF U DONT KNOW)

Mathematics

1 answer:

Katen [24]4 years ago

8 0

Answer:

The only two that share both of these qualities are the isosceles triangle and the isosceles right triangle.

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Write a quadratic equation in standard form with x-intercepts (-3, 0) and (4, 0) that passes through (2, -20).

jeka57 [31]

Answer:

The equation in standard form is: $y=2x^2-2x-24$

Step-by-step explanation:

Since they give you the x-intercepts (the zeros of the quadratic expression) one knows that the binomials: (x-(-3)) and (x-4) must be factors of the quadratic expression.

We can therefore write the equation as:

$y=k\,(x+3)(x-4)$

using the binomial factors given above, and a numerical factor "k" that we can determine by using the information that the graph passes through the point (2,-20):

$y=k\,(x+3)(x-4)\\-20=k\,(2+3)(2-4)\\-20=k\,(5)(-2)\\-20=k\,(-10)\\k=\frac{-20}{-10} \\k=2$

Then,the equation can be written as:

$y=2\,(x+3)(x-4)\\y=2(x^2-x-12)\\y=2x^2-2x-24$

where we wrote the equation already in standard form

5 0

3 years ago

9 is 12% of which number?

Firdavs [7]

You should try doing this
9 times 100
then divide your answer by 12.

6 0

3 years ago

42 is 8% of what number

Setler [38]

8%=0.08
42÷0.08=525
So your answer is 525

7 0

3 years ago

Read 2 more answers

In a trivia game, players lose points for wrong answers.

Elan Coil [88]

Answer:

-20 points for a incorrect answer

Step-by-step explanation:

-160/8=20

8 0

3 years ago

Read 2 more answers

Sholpan [36]

Answer:

A. {(5, –4), (–4, 5), (–5, 4), (4, –5)}

Step-by-step explanation:

Since there is one value of

for every value of

(

−

)

(

−

)

(

−

)

(

−

)

, this relation is a function.

The relation is a function.

5 0

3 years ago