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2 years ago

Hey Please Answer This Question For Me Please?

Mathematics

2 answers:

Andreas93 [3]2 years ago

8 0

Answer:

A. 71

Step-by-step explanation:

<em>3x^2 - 5x +3 with x= - 4substitute the x with -4</em>

3×(-4)^2 - 5× (-4) +3=

=3×(-4)×(-4) +20 +3=

=3×16 +20+3=

=48+23=71

Soloha48 [4]2 years ago

7 0

Answer: A
Explanation:
Basically, it points out the value of x, meaning you have to define x as that number so you plug -4 for x.
How I plugged it in: 3(-4)^2-5(-4)+3

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2 years ago

Which statement is true about whether Z and B are independent events

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2 years ago

It snowed for 11 days in January and 9 days in February. How many days did it snow in all?

m_a_m_a [10]

Answer:

21 days in total

Step-by-step explanation:

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2 years ago

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Ivanshal [37]

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2 years ago

If a boat depreciates in value according to the simple interest formula Y=20,000(.92)^2 find the rate of decay. Write as a perce

Alexandra [31]

Answer:

Rate of Decay = 8%

Step-by-step explanation:

The decay formula is:

$F=P(1-r)^t$

Where F is the final value (here, it is given as "Y")

P is the initial value (here, given as 20,000)

r is the rate of decay (what we need to find)

t is the time (given as 2)

Comparing both the equations:

$F=P(1-r)^t\\Y=20,000(0.92)^2$

We see that:

1 - r =0.92

We solve for "r":

1 - 0.92 = r

0.08 = r

The rate of decay is 0.08, as a percentage, we need to multiply by 100, so we have:

0.08 * 100 = 8%

Rate of Decay = 8%

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3 years ago