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Digiron [165]
2 years ago
10

Need help with this math hw

Mathematics
1 answer:
belka [17]2 years ago
8 0
It’s option number 1

True me it’s hard to explain but I’m 100% sure it’s number 1
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F(x) = -4x2 – 7x + 4<br> Find f(-7)
notka56 [123]

Answer:

<h2> f(-7) = 249 </h2>

Step-by-step explanation:

f(x)  =  - 4 {x}^{2}  - 7x + 4

To find f(-7) , substitute the value of x that's - 7 into f(x). That is for every x in f(x) replace it with - 7

We have

f( - 7) =  - 4 ({ - 7})^{2}  - 7( -7 ) + 4 \\  = 4(49) + 49 + 4 \\  = 196 + 53 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:

We have the final answer as

<h3>f( -7) = 249</h3>

Hope this helps you

5 0
3 years ago
1. Kim and Cyndi are starting a business tutoring students in math. They rent an office for $400 per month and charge $40 per ho
Anon25 [30]
<span>$40 per hour
15 students per week
Each hourly student earns them $40 and there are 15 students, so this is multiplication.
40 * 15 = 600 per week
There are 4 weeks per month to earn 600 each week, this is again multiplication.
600 * 4 weeks = 2400 per month 
</span><span>Out of their earned 2400 they must pay for their overhead, the building rent
2400 - 400 = 2000 profit 
They are left with $2000 between them.</span>
4 0
3 years ago
Which statement about graphs and their inverse is true?
MrMuchimi
A. They are symmetric about y=x
7 0
3 years ago
A laundry bag con tans 4 green socks,6 red socks, and 2 blue socks. Inez reaches out into the bag and randomly pulls out 2 socks
IgorC [24]
P(green sock, blue sock)= 4/10*2/9=8/90

3 0
3 years ago
What happens to the center of a figure when it is dilated about the origin?
alina1380 [7]
There are 2 answers for this in my opinion
1. nothing happens because its still in the origin and that won't change
2. depending on which way you turn it the points will change based on that

so if you know how to use a graph you should be good
7 0
4 years ago
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