2 years ago

Which of the following correctly simplifies the expression( IMAGE BELOW )

Mathematics

1 answer:

Vaselesa [24]2 years ago

3 0

I believe it is C, but i'm not 100% on that

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The ratio of the number of left handers to the number of right handers in a middle school is 6:15. If there are 120 left handers

Zinaida [17]

Answer:

300

Step-by-step explanation:

there are 9 15's in 120 which means its going by 15's 3 x 5= 15 and if it says 6 that means its timesed by 2. 15 x 2= 30 then 30 x 10= 300

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3 years ago

Enter the amplitude of the function f(x).<br><br> f(x)=−sin(3x)−1

77julia77 [94]

Enter the amplitude of the function f(x). f(x)=-2sin(3x)-1 . 2. See answers. Log in to add comment. Answer. Answer. 5.0/5. 5.0/5.

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2 years ago

A square with side x is changing with time where x(t)=3t+1. What is rate of change of the area of the square when t=2 seconds.

GuDViN [60]

Answer:

Rate of change of the area of the square is 42 units at t = 2.

Step-by-step explanation:

We note that the area of the square is given by: $A(x) = x^2$ but we aim to find $\frac{dA}{dt}$ . But we can use the chain rule to pull out that dA/dt. Doing so gives us:

$\frac{dA}{dt} = \frac{dA}{dx} \times \frac{dx}{dt}.$

Now, $\frac{dA}{dx} = 2x$ (by the power rule and $\frac{dx}{dt} = 3.$

But since we have "x" and not "t", we want to find what x is when t = 2. Substituting t = 2 gives us x(2) = 3(2) + 1 = 7.

So, finally, we see that:

$\frac{dA}{dt} = 2(7) \times 3 = 14 \times 3 = 42.$

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3 years ago

Which triangles could you use the HL Theorem to prove that Δ 1 = Δ 2?

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Number 3. I think so.

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3 years ago

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When 18 gallons of water are pumped into an empty tank, the tank is filled to three fourths of its capacity. How many gallons of

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3/4 Of X(Capacity) = 18 Gallons
X = 18*4/3
= 6*4
= 24 Gallons

Capacity of Tank = 24Gallons

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3 years ago

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