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CaHeK987 [17]
3 years ago
10

EASY! WILL MARK BRAINEST!! What is f(3) for the function f(x)=7x+5

Mathematics
1 answer:
Debora [2.8K]3 years ago
6 0

Answer:

26 is the answer

Step-by-step explanation:

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The equation y 4.9t 2 3.5t 2.4 relates the height y in meters to the elapsed time t in seconds for a ball thrown downward at 3.5
tamaranim1 [39]

Answer:

t \approx 0.43\,s

Step-by-step explanation:

The vertical displacement function is y(t) = -4.9\cdot t^{2}-3.5\cdot t + 2.4, where y(t) is measured in meters and t in seconds. Ball hits the ground when y(t) = 0. That is:

-4.9\cdot t^{2}-3.5\cdot t + 2.4 = 0

Whose roots can be found by using the General Formula for Second-Order Polynomials:

t_{1,2} = \frac{3.5\pm \sqrt{(-3.5)^{2}-4\cdot (-4.9)\cdot (2.4)} }{2\cdot (-4.9)}

Solutions of this polynomial are:

t_{1} \approx 0.43\,s,t_{2} \approx -1.14\,s

Only the first root is physically consistent.

3 0
3 years ago
Find the product. (-4·3·2)2 -48 48 -576 576
VLD [36.1K]
(-4*3*2)^2 = (-24)^2 = 576

hope this will help you 
5 0
3 years ago
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Bags of sweets cost £3.75
Pachacha [2.7K]
The answer would be rounded by 7
6 0
3 years ago
PLEASE HELP!! I'll make brainliest ​
Gekata [30.6K]
Sorry people send you links instead of actually helping you
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Solve for p P-17=2p+3
Y_Kistochka [10]

Answer:

-20

Step-by-step explanation:

P-17=2P+3

P-2P=17+3

-P=20

Divide both sides by negative 1

P=20

7 0
3 years ago
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