3 years ago

What is the correct answer need answer ASAP question 9

1 answer:

7 0

No is the answer. If she works 20 hours at Kroger ($8 x 20 hours = 160) and 15 hours babysitting($15 x 15 hours = 225) 160 + 225 = $385

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(0,-4),(1,0),(2,2) find a quadratic function in standard form for each set of points.

Sphinxa [80]

We are given the points
<span>(0,-4),(1,0),(2,2)
The standard form a quadratic function (in terms of x) is
y = Ax2 + Bx + C
Subsitute the points
-4 = 0 + 0 + C
C = -4

0 = A + B - 4

2 = 4A + 2B - 4

Solve for A and B
A = -1
B = 5

The function is
y = -x2 + 5x - 4</span>

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3 years ago

The table gives predictions of the average costs of a gasoline car after the year 2030. Which graph best represents the relation

kiruha [24]

Answer:

It's the b graph

Step-by-step explanation:

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2 years ago

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A hardware dealer has 168kg of nails, if one nail weighs 0.25kg, how many nails he have?

snow_tiger [21]

Answer:

He has 672 nails

Step-by-step explanation:

168/.25

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2 years ago

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The profits in hundreds of dollars, P(c), that a company can make from a product is modeled by a function of the price, c, they

Jobisdone [24]

The maximum profit is the y-coordinate of the vertex of the parabola represented by the equation.

$P(c)=-20c^2+320c+5120 \\ \\
a=-20 \\
b=320 \\ \\
\hbox{the vertex } (h,k): \\
h=\frac{-b}{2a}=\frac{-320}{2 \times (-20)}=\frac{-320}{-40}=8 \\
k=f(h)=f(8)=-20 \times 8^2+320 \times 8+5120= \\
=-1280+2560+5120=6400$

The maximum value is 6400, but the profit is given in hundreds of dollars, so multiply the value by 100.

The maximum profit the company can make is $640,000.

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3 years ago

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What makes up the sides of an angle?

lesantik [10]

The sides of the angle are the lengths which it is formed

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3 years ago

What is the correct answer need answer ASAP question 9​

What is the correct answer need answer ASAP question 9