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Alborosie
3 years ago
9

Perform the required calculations for each of the following items. Round your answers to the nearest 0.1%. 20 is how much less t

han 30? What percent less? 25 is how much more than 20? What percent more? 37 is what percent more than 32? 300 is what percent less than 599? 184 is what percent more than 148? 102 is what percent more than 50? 16 is what percent less than 489? 216 is what percent greater than 80? 418 is what percent smaller than 516?
Mathematics
1 answer:
alexdok [17]3 years ago
4 1

Answer:

aight bet hold up my boy I just need a sec

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Please help with 11c!?
Contact [7]

Answer:

"To the nearest year, it would be about 9 years"

Step-by-step explanation:

11c)

This is compound growth problem. It goes by the formula:

F=P(1+r)^t

Where

F is the future amount

P is the present (initial) amount

r is the rate of growth, in decimal

t is the time in years

Given,

P = 20,000

r = 8% = 8/100 = 0.08

F = double of initial amount = 2 * 20,000 = 40,000

We need to find t:

F=P(1+r)^t\\40,000=20,000(1+0.08)^t\\2=(1.08)^t

To solve exponentials, we can take Natural Log (Ln) of both sides:

2=(1.08)^t\\Ln(2)=Ln((1.08)^t)

Using the rule shown below we can simplify and solve:

Ln(a^b)=bLn(a)

We can write:

Ln(2)=Ln((1.08)^t)\\Ln(2)=tLn(1.08)\\t=\frac{Ln(2)}{Ln(1.08)}\\t=9.0064

To the nearest year, that would be about 9 years

5 0
3 years ago
Is x + 3 a factor of P(x) = x³ - 5x² + 3x + 9 ? Explain.​
Ksju [112]

Answer:

no

Step-by-step explanation:

using the Factor theorem.

If (x + h) is a factor of f(x) then f(- h) = 0

for factor (x + 3) then evaluate P(- 3)

P(- 3) = (- 3)³ - 5(- 3)² + 3(- 3) + 9 = - 27 - 45 - 9 + 9 = - 72

since f(- 3) ≠ 0 then (x + 3) is not a factor of P(x)

4 0
2 years ago
Which expressions are equivalent to k/5 Choose two answers
lozanna [386]

Answer:

c i think                                                                              

i remember having this question

8 0
3 years ago
Read 2 more answers
Expression 3x²+4x-5<br>x=0​
Korolek [52]

Answer:

x = {1/3, 0}

Step-by-step explanation:

5 0
2 years ago
What is the equation of this line?<br> •y=-1/2x<br> •y=1/2x<br> •y=-2x<br> •y=2x
kodGreya [7K]

Answer:

Y= 2X

Step-by-step explanation:

The Y intercept is 0, therefore it would not have a "b" if it were in the form y=mx+b.

The line is going right, so it's positive. From 0, the line goes over 2, up 2, so the slope is 2.

6 0
3 years ago
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