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-Dominant- [34]
3 years ago
10

The fee for charging an electric car at station A is $2 to start and $4 for each hour or fraction of an hour. Which point is NOT

included in the graph of this step function?
A. (2.5, 14)
B. (2, 10)
C. (0,0)
D. (1,6)
Mathematics
1 answer:
Alex777 [14]3 years ago
8 0
I think it is D


I think ok
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What is the equation of the quadratic graph with a focus of (1, 1) and a directrix of y = −1?
JulsSmile [24]
Alright,
directix is y=something so it opens down or up

we use
(x-h)²=4p(y-k)
the vertex is (h,k)
and p is distance from focus to vertex
if focus is above directix, p is positive
if focus is below directix, p is negative

so we gts

focus=(1,1)
directix is y=-1
1>-1
focus is above

oh, vertex is in middle of focus and directix
so
beteeen (1,1) and y=-1 is, hmm
that is a distance of 2 vertically
2/2=1
1 down from (1,1) is (1,0)
vertex is (1,0)
p=1

so
(x-1)²=4(1)(y-0)
solving for y to get into f(x)=something form
(x-1)²=4y
y=1/4(x-1)²
f(x)=1/4(x-1)²

4th option
6 0
3 years ago
Please help and show work please and thank you ! :) I’ll give brainliest
lina2011 [118]

Answer:

216 yds

Step-by-step explanation:

6 0
2 years ago
Need help ASAP !!!<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B26548%20%5Ctimes%2026548%7D%20" id="TexFormula1" title=
miskamm [114]

Answer:

√{26548×26548}=√26548²=±26548

6 0
2 years ago
Read 2 more answers
PLEASE HELP!! Serious answers only please!!
klemol [59]

Answer:

Step-by-step explanation:

Use the distributive property to get rid of the brackets.

9i + 2*7 + 2*3i        Use the multiplication property to simplify the imaginary terms

9i + 2*3i + 2*7        Do the same to the real term

9i + 6i + 14              Use the addition of like terms property

15i + 14                    And that's your answer.

You may not like my terminology, but you have to remember that every text teaches this differently.

7 0
2 years ago
I don’t know what to do
sergey [27]
20% of 15 is 12$, and tax is 5% so it comes out to 12.60$
The answer is B
4 0
3 years ago
Read 2 more answers
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