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3 years ago

Which is an algebraic expression for five more then Z?

Mathematics

2 answers:

algol [13]3 years ago

5 0

5 > Z more than is always like this > more than or equal to is like this > with a line under it

faltersainse [42]3 years ago

4 0

I believe the answer would be Z < (Z+5)

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Let f(x)=−1/4(x+4)^2−8 . What is the average rate of change for the quadratic function from x=−2 to x = 2? Enter your answer in

kiruha [24]

Answer:

Average rate of change of function is -2.

Step-by-step explanation:

Given $f(x)=\frac{-1}{4}(x+4)^2-8$ .

we have to find the average rate of change for the quadratic function from x=−2 to x = 2.

$f(-2)=\frac{-1}{4}(-2+4)^2-8=\frac{-1}{4}(4)-8=-9$

$f(2)=\frac{-1}{4}(2+4)^2-8=\frac{-1}{4}(36)-8=-17$

The average rate of change of the function f(x) on interval [-2,2] is

$\frac{f(b)-f(a)}{b-a}=\frac{f(2)-f(-2)}{2-(-2)}=\frac{-17-(-9)}{4}=\frac{-8}{4}=-2$

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3 years ago

5 magazines and 3 books cost $41.50. 2 magazines and 5 books cost $42.25. Find the cost of each item.

WINSTONCH [101]

Answer:

The Magazines each costed $8.30 and the books cost $13.80 for the amount of $41.50. and the 2 magazines and 5 books for $42.25 the 2 magazines is $21.12 for each and $8.45 for each book.

Step-by-step explanation:I got the answers by taking the total cost and taking the number of books or if it was a a magazine and I would divide it by lets just say you have 42.25 dollars you would divide that by 3 and you would do it for every item with the total cost.

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3 years ago

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lubasha [3.4K]

Answer:

It's a he

Step-by-step explanation:

It is a man living in Libya, who sends messages through ha.cked people's accounts.

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3 years ago

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Write an equation of a line which is passing through the point (8, −6) and is parallel to another line, whose slope is −2

AlekseyPX

-6=-2(8)+b
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10=b
Equation: y=-2x+b

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3 years ago

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Find the domain and range of the graph

Rainbow [258]

Answer:

Domain: $[-2,1)$

Range: $[0,4]$

Step-by-step explanation:

Domain

We can see that the piecewise function starts at x=-2, which is included, and ends at x=1, which isn't included. To represent the x-values that lie in between these two endpoints, you would write $[-2,1)$ . Brackets show that one endpoint is included while parentheses show that one endpoint isn't included.

Range

Following this logic, the range has its y-values go from 0 to 4 with both endpoints included if you were to trace the function. Thus, your range would be $[0,4]$ .

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2 years ago