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musickatia [10]
3 years ago
14

Help please!

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
8 0

Answer:

y= -4x^2 + 15x - 14

Step-by-step explanation:

Anna71 [15]3 years ago
4 0

Answer:

y= -4x^2 + 15x - 14

Step-by-step explanation:

A parabola is always in the form y = ax^2 + bx + c.

Substitute each point to produce different equations:

-14 = 0a + 0b + c = c

so c = -14

-3 = a1^2 + b1 + c = a + b - 14

so a + b = 11

0 = a2^2 + b2 + c = 4a + 2b -14 = 0

so 4a + 2b = 14

if we double a + b = 11 we get 2a + 2b = 22

Subtract this from 4a + 2b = 14 and we get 2a = -8 so a= -4 and b = 11 - a = 15

We don't need to use the (3,5) points as we have all the information we need.

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Simplify the expression 5(3x - 7 + 4y)
kolbaska11 [484]

Answer:

15x - 35 + 20y

Step-by-step explanation:

Simplify. Distribute 5 to all terms within the parenthesis:

5(3x - 7 + 4y) =

5 * 3x = 15x

5 * -7 = -35

5 * 4y = 20y

15x - 35 + 20y is your answer.

~

8 0
3 years ago
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It's due in 30 minutes!!
Doss [256]
1st is 40/100 = 4/10 =40%
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3 years ago
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Amiraneli [1.4K]

The little lines through the two sides mean they are the same length.

When the two sides are the same length the 2 corresponding angles are also the same, so Angle A and Angle B are both 34 degrees.


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y = 112 / 4

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5 0
3 years ago
Which number is equivalent to 35 %
Anton [14]
0.35 is equivalent to 35%
3 0
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Martin finds an apartment to rent for $420 per month. He must pay a security deposit equal to one and a half months' rent. How m
algol [13]

Answer:

\text{ \$630}

Explanation:

From the question, we have it that the securit deposit is one and a half months' rent

What this means is that we will add one month rent to half of the other month at a value of $420 per month

Mathematically, we have this as:

\begin{gathered} 420\text{ + }\frac{420}{2} \\ =\text{ 420 + 210 = \$630} \end{gathered}

7 0
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