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zimovet [89]
2 years ago
6

Given the function f(x) =-2x^2 + 4x -7 find f(-4)

Mathematics
1 answer:
Kamila [148]2 years ago
4 0
Correct the answer is -55
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Complete the solution of the equation. Find the value of y when x equals -3. 2x-5y =-21
vesna_86 [32]
The answer is y=3 ....

5 0
3 years ago
Calculate the mean, median, and mode of the following set of data. Round to the nearest tenth. 10, 1, 10, 15, 1, 7, 10, 10, 1, 6
klemol [59]
First order the data: 
1, 1, 1, 6, 7, 10, 10, 10, 10, 13, 15
the mean is all the numbers added together divided by how many there are, 1 + 1 + 1 + 6 + 7 + 10 + 10 + 10 + 10 + 13 + 15 = 84    84/11 = 7.636364 ≈ 7.6
the median is the number in the middle of the list, count numbers from each end, until you either have one or two left, if one left then its that one, if two left then its half way between the two
the median for your set is 10
The mode is the most common number, in your set 10
5 0
3 years ago
A class of 260 students went on a field trip. They took 12 vehicles, some cars and some buses. Find the number of cars and the n
Afina-wow [57]
The equation is 5c+25b=260 when c+b=12. rearrange that into 12-b=c. substitute and you get 5(12-b)+25b=260. b=10. 12-10=2, so 10 buses and 2 cars were used as transportation for the field trip.
5 0
3 years ago
If g(x)=5x-3 and h(x)=square roto of x, find (g•h) (4)
denis-greek [22]

Answer:

(goh) (4) = 7

Step-by-step explanation:

(goh) (x) = g(h(x))

Plug in

g(h(x)) = 5(√x) - 3

if x = 4 then

g(h(4)) = 5(√4) - 3

g(h(4)) = 5(2) - 3

g(h(4)) = 10 - 3

g(h(4)) = 7

3 0
3 years ago
PLZ HELP ASAP RIGHT TRIANGLES
Galina-37 [17]
6.02 because you divide
4.3 ÷ 4= 1.075
Now multiply 1.075 × 5.6 = 6.02
4 0
3 years ago
Read 2 more answers
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