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2 years ago

What is f(-3) for the function f(a)=-2a2-5a+4?

Mathematics

2 answers:

Oxana [17]2 years ago

6 0

Answer F(a)= -23 !!!!!!!!!

kvv77 [185]2 years ago

6 0

The answer is 31. You must plug -3 in for all A's in the function -2(-3)2-5(-3)+4=31

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Goods bought for $800 had to be sold off at a loss of 8% the selling price was

Vikentia [17]

Answer:

8% of 800 is 64

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Step-by-step explanation:

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2 years ago

The figures are similar. The area of one figure is given. Find the area of the other figure to the nearest whole number.

Akimi4 [234]

Answer: Option b.

Step-by-step explanation:

First, you need to calculate the ratio of the area. This is:

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2 years ago

What is the y-intercept of the function y= -1/2cos(3/2x)

Flauer [41]

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Step-by-step explanation:

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2 years ago

An FM radio station broadcasts at 84 megahertz (MHz). What is the energy of each photon in Joule? Use h = 6.6 * 10 ^ (- 34) * j

iragen [17]

Answer:

$E=5.544*10^{-26} J$

Step-by-step explanation:

The equation for photon energy is given by:

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Where:

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This equation telling us that the higher the frequency of the photon, the greater its energy. And the longer the photon wavelength, the lower its energy.

So, replacing the data provided in the previous equation:

$E=(6.6*10^{-34} )*(84000000)=5.544*10^{-26} J$

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2 years ago

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Mashutka [201]

Answer:

Step-by-step explanation:

mode is the number that is most frequent

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2 years ago

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