3 years ago

If fx = 5x - what is the value of f(5)?

Mathematics

1 answer:

ra1l [238]3 years ago

3 0

Answer:

Step-by-step explanation:

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What is (4x - 3)^6 expanded

fenix001 [56]

Expad the expression:

4096x^(6)-18432x^(5)+34560x^(4)-34560x^(3)+19440x^(2)-5832x-729

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3 years ago

Please help, multiple choice

ycow [4]

Answer:

10

Step-by-step explanation:

5x = x20

x · x = 20 · 5

x2 = 100

x = 10

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3 years ago

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X^2 + 18x + c = 25 +c

svet-max [94.6K]

Rearrange to: x^2 + 18x - 25 = 0
Then factorise (I like to do it by completing the square):
(x + 9)^2 -81 -25 = 0
(x + 9)^2 = 106
x + 9 = sqrt(106)
The sol'ns are:
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3 years ago

Disregarding wind resistance the distance a body falls from rest varies directly as th squares of the time it falls if a skydive

Firdavs [7]

Answer:

The skydiver will fall 1600 ft in 10 seconds.

Step-by-step explanation:

Distance a body falls from rest varies directly as the squares of the time it falls

Let distance = s

time = t

Therefore , s = k $\times t^{2}$

Given, the body falls 64 ft in 2 seconds.

Substituting in above equation,

64 = k $\times (2)^{2}$

64 = k $\times (4)$

k = $\frac{64}{4}$

k = 16 ft/ $s^{2}$

We have to find how much he will fall in 10 seconds.

s = k $\times t^{2}$

s = $16 \times 10^{2}$

s = $16 \times 100$

s = 1600 ft

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3 years ago

Please solve for x will mark brainliest answer

inna [77]

Answer:

x ≥ - 8

Step-by-step explanation:

Given

$\frac{x}{2}$ ≥ - 4

Multiply both sides by 2 to eliminate the fraction

x ≥ - 8

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