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Aneli [31]
3 years ago
13

Pls i need ur help i need the full ans

Mathematics
1 answer:
e-lub [12.9K]3 years ago
7 0
I’m pretty sure it’s 14.76 minutes
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In the function y = -5x2 + 5 , the graph will open down, be shifted up 5 units, and it will be wider than the parent function y
masya89 [10]
We are considering the function y=f(x)=-5 x^{2} +5

the graph of this function is the graph of the parent function y=g(x)= x^{2} after applying the following steps.

1. multiply by -1:

-x^{2} is x^{2} reflected with respect to the x-axis.


2. multiply by 5:

-5x^{2} is -x^{2} shrinked towards the y axis. 

for example, consider x=1/2

 -5x^{2}=-5( \frac{1}{2} )^{2}=-5* \frac{1}{4}= \frac{-5}{4}=-1.25

 -x^{2}=- ( \frac{1}{2} )^{2}=- \frac{1}{4}=-0.25

now this means that -5x^{2} is "lower" than -x^{2}, which means there is a shrinking of the graph.

3. add 5:

-5 x^{2} +5 is -5 x^{2} shifted 5 units up.


4.

so the graph of the function a) opens down, b) is shifted 5 units up, c) is not wider than the parent function



Answer: False
6 0
4 years ago
The selling price of an item is ​$360. After 6 months of not​ selling, it is marked down by 10​%. After another 6 months of not​
FrozenT [24]

Answer:

1st markdown = ​$324

2nd markdown = ​$259.20

Step-by-step explanation:

current price = 360

1st 6 months = 10% down

                     = 90% of 360

                     = <u>324</u>

2nd 6 month = 20% down of first 6 month

                      =  20% down of 324

                      =  80% of 324

                      = <u>259.20</u>

6 0
3 years ago
You buy some post cards at 55cents each and one newspaper for 35cents. Which could be used to determine the number of post cards
Radda [10]
3 post cards and 1 newspaper can be bought
8 0
3 years ago
The probability that you randomly draw a short straw from a group of 80 straws is 3/20. How many are short straws?
xxTIMURxx [149]

Answer:

12

Step-by-step explanation:

5 0
3 years ago
Quadrilateral wxyz is a paralelogram if w=50<br> what is wzy
slega [8]
It means different digits.
W=50 would count as one of the digits.
Now you have to figure out what “XYZ” is.
8 0
2 years ago
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