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loris [4]
3 years ago
11

assume the the parent graph is y=x^2-2 write the equation of the parabola that would move it down 5 units

Mathematics
1 answer:
REY [17]3 years ago
6 0

Answer:

Y= 1 (x^2-2)-5

Step-by-step explanation:

Use vertex form: y= a(x-h)+<u>k: k is what shifts the parbola up or down. Positive shifts it up while negative shifts it down.</u>

<u />

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write a rational expression involving one variable for which the excluded values are -4 and -7. Please Help!!!!!!
lions [1.4K]

Answer:

See below.

Step-by-step explanation:

Values are excluded if they make the denominator zero, so one rational expression could be:

(x^2 - 9) /  (x + 4)(x + 7)

- when x = -4 or -7 then the denominator is zero so the values of the function is undefined for these values.

3 0
3 years ago
When making a fruit salad, a chef chooses 7 fruits from 10 that are in season. how many different fruit salads can the chef crea
Furkat [3]
For this example, we must combine not permutate; this because a salad in which you first use apple then tomato is the same as the one in which you use first tomato then apple, so order does not matter.

Me must do "10 combine 7" which is written by the binomial coefficient (_{7} ^{10}); in general a binomial coefficient is written by:
(_{k} ^{n})= \frac{n!}{k!(n-k)!}

In which n and k are positive integers, such that n\ \textgreater \ k.

So, for this problem:
(_{7} ^{10})= \frac{10!}{7!(10-7)!}=\frac{10!}{7!3!}= \frac{10*9*8}{3*2}=10*3*4=120

Hence, there are 120 different ways to make the fruit salad.
5 0
3 years ago
Find the square roots of the following numbers. Give the steps correctly.
Novay_Z [31]

Answer:

the sqare root of 19.9 is 4.46094160464

3 0
3 years ago
A gallon of gas costs $2.73. Walter pays for 24 gallons of gas. He gives the clerk $80.00. How much change should Walter receive
wolverine [178]

Answer:

14.48

Step-by-step explanation:

2.73×24=65.52 is how much 24 gallons cost.

80.00-65.52=14.48 this how much money he would get back from paying for gas

hope this helps

7 0
3 years ago
Which of the following functions represents a cell phone bill if there is a monthly charge of 20 dollars plus 6 cents for each m
pychu [463]

Answer:

f(x)=20+0.06x

Step-by-step explanation:

3 0
3 years ago
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