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2 years ago

If a=-1, b=2, c=0 find the value of 2a²+6-2b+4c

Mathematics

1 answer:

timama [110]2 years ago

5 0

Answer:

Step-by-step explanation:

2(-1)²+6-2(2)+4(0)

2+2+0

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The population of a community is known to increase at a rate proportional to the number of people present at time t. The initial

GREYUIT [131]

Answer:

P(0) = 7,917

Step-by-step explanation:

The population of the community is given by the following formula:

$P(t) = P(0)(1+r)^{t}$

In which P(0) is the initial population and r is the growth rate.

The initial population P0 has doubled in 5 years.

This means that

$P(5) = 2P(0)$

Which lets us find r.

$P(t) = P(0)(1+r)^{t}$

$2P(0) = P(0)(1+r)^{5}$

$(1+r)^{5} = 2$

Applying the 5th root to both sides

$1+r = 1.1487$

$r = 0.1487$

$P(t) = P(0)(1.1487)^{t}$

Suppose it is known that the population is 12,000 after 3 years.

With this, we find P(0)

$P(t) = P(0)(1.1487)^{t}$

$12000 = P(0)(1.1487)^{3}$

$1.5157P(0) = 12000$

$P(0) = \frac{12000}{1.5157}$

$P(0) = 7917$

4 0

3 years ago

What is 2/3 divided by 5/6

sergeinik [125]

Step-by-step explanation:

$\frac{2}{3} \div \frac{5}{6} \\ {doing \: reciprocal \:} \\ \frac{2}{3} \times \frac{6}{5} \\ \frac{4}{5}$

Hope it will help :)

4 0

3 years ago

Read 2 more answers

What are the zeros of this function?

Hunter-Best [27]

If you need the y zero, you would take the 2 points on the graph of (3, 0) and (6, 0) so the 2 zero’s are 3, and 6.

3 0

2 years ago

Jerry bought 6.95 lbs of cherry and lime jelly beans for his birthday party. If 1.75 lbs were cherry flavor, how many pounds wer

cricket20 [7]

You would have 5.2 pounds of lime flavor
since
6.95-1.75=5.2

HOPE THIS HELPS

8 0

3 years ago

Read 2 more answers

4+8= 2 x (6-3)<br> Can somebody help me ASAP

kupik [55]

Answer: 12≠6

False

Step-by-step explanation:

8 0

3 years ago