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3 years ago

7

Each week, Steven gets an allowance of $8 plus $3 for each chore he does. His younger sister Jill gets an allowance of $6 plus $

2 per chore. Write an expression for how much their parents give Steven and Jill for each week if they do the same number of chores.

2 answers:

olasank [31]3 years ago

8 0

Answer:

23

Step-by-step explanation:

GrogVix [38]3 years ago

5 0

Answer:

23

Step-by-step explanation:

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Find the focus for y=x^2+4x-7

padilas [110]

ANSWER

$(2,-10.75)$

EXPLANATION

The given function is

$y = {x}^{2} - 4x - 7$

We rewrite this function to obtain,

$(y + 11) = {( x- 2)}^{2}$

We now compare this function to

$(y - k) = 4p {( x- h)}^{2}$

We have

$4p = 1$

This implies that,

$p = \frac{1}{4}$

The vertex is (2,-11).

The focus is

$(2,-11+ \frac{1}{4} )$

$(2,- \frac{43}{4} )$

$(2,-10.75)$

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Answer:

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