2 years ago

1. An object travels 15 m in 3 s. What is the speed of the car?

Physics

1 answer:

weqwewe [10]2 years ago

3 0

1. Depends on how past the car is moving

2. The velocity is 5m a second heading south

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Beliefs is a non example

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If I keep F constant in F=ma, what is the relationship between m and a?

Jobisdone [24]

Answer:

If F is a constant, we can take f = 1

f = m×a

ma = 1

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You are given the melting points of three unknown substances and are asked to predict which one is an ionic compound. You would

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3 years ago

Need help finding the average speed.

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To find the average of these numbers, we just have to add the three numbers together and divide by 3.

2.07 + 0. 74 + 1.33 = 4.14. 4.14 / 3 = 1.38
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0.95 + 1.61 + 0.56 = 3.12 / 3 = 1.04
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3 years ago

If f(x) = -3x +4 and g(x) = 2, solve for the value of x for<br>which (fx) = g(x) is true.

maksim [4K]

Answer:

$x=-\frac{2}{3}$

Explanation:

Let:

$f(x)=-3x+4\\\\And\\\\g(x)=2$

We need to know for which value of $x$ the function $f(x)$ is equal to $g(x)$ :

$f(x)=g(x)$

Therefore, we need to solve for the previous equation for $x$ :

Replacing the values of $f(x)$ and $g(x)$ :

$-3x+4=2$

Subtract 4 from both sides:

$-3x+4-4=2-4\\\\-3x=-2$

Multiply both sides by -1

$-3x(-1)=-2(-1)\\\\3x=2$

Divide both sides by 3:

$\frac{3x}{3} =\frac{2}{3} \\\\x=\frac{2}{3}$

Therefore the value of $x$ for which $f(x)=g(x)$ is $x=\frac{2}{3}$ .

Verify the result:

$-3(\frac{2}{3} )+4=2\\\\-2+4=2\\\\2=2$

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3 years ago