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Zanzabum
3 years ago
8

The function h(x) = -4.9x^2 +20x + 2 represents the height of a model rocket x seconds after the rocket is fired

Mathematics
1 answer:
Flauer [41]3 years ago
3 0

Answer:

Step-by-step explanation:

4.2 seconds

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Use the Pythagorean theorem to find the length of side FD.
jarptica [38.1K]

Answer: i think its 9 but sorry if I'm wrong I'm only in 4th grade

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
F(x) = x ^ 2 - 8x + 7
bekas [8.4K]
Answer:
They have the same x-value
f(x) has the greater minimum
Step-by-step explanation:
To find the vertex of a second degree equation, in this case the minimum value, we can use the following equation:
x = -b / 2a
Remember that a second degree equation has the following form:
ax^2 + bx + c
so a = 1, b = -8 and c = 7. Now you have to substitute in the previous equation
x = - (-8) / 2(1)
x = 8 / 2
x = 4
This means that the two functions have the same x-value.
The y value of f(x) would be
f(4) = (4)^2 - 8(4) + 7
f(4) = 16 - 32 + 7
f(4) = -9
So the vertex, or minimun value of f(x) would be at the point (4, -9).
The vertex, or minimun value of g(x) is at the point (4, -4).
So f(x) has a minimum value of -9 and g(x) a minimum value of -4.
5 0
3 years ago
4. Samara's monthly taxable income was $3276.54. If she paid $757.24 in taxes, what
professor190 [17]

Answer:

23.1%

Step-by-step explanation:

Given data

monthly taxable income was $3276.54

Tax= $757.24

Percentage of tax paid= tax paid/monthly income* 100

Percentage of tax paid=757.24/3276.54* 100

Percentage of tax paid=0.231* 100

Percentage of tax paid=23.1%

3 0
3 years ago
What is 9 x 78 Im so lazy to fo it please show the steps
torisob [31]
702 is your answer trust I can be lazy too
6 0
3 years ago
Read 2 more answers
Aluate 18 - (2 + 6h), if h = 2​
densk [106]

Answer:

4

Step-by-step explanation:

Simple, just plug in, distribute, then solve.

18 - (2+6(2))

18 - (2 + 12)

18 - 14 = 4.  

3 0
4 years ago
Read 2 more answers
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