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3 years ago

Si: P(x+2) = 2(x+2)^3 + x^2 +4x +4 Calcular : P(-4)

Mathematics

1 answer:

Tom [10]3 years ago

6 0

Answer:

Step-by-step explanation:

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Solving 8 problems per minute, Fast Finn can finish his test in time. He was however, working faster, solving 10 problems per mi

mrs_skeptik [129]

Answer:

Number of problems = 240

Step-by-step explanation:

Let x be the number of questions and t be the time.

Given:

Average rate = 8 problems per minute

Fast Finn rate = 10 problems per minute

Fast Finn taken time = t - 6

We need to find the number of problems on the test paper.

Solution:

Average rate to solve test paper.

$Average\ rate =\frac{Number\ of\ questions}{time}$

$8 =\frac{x}{t}$

$t =\frac{x}{8}$ --------------(1)

Fast Finn rate to solve the test paper.

$Average\ rate =\frac{Number\ of\ questions}{time}$

$10 =\frac{x}{t-6}$

Using cross multiplication rule.

$x=10(t-6)$

$x=10t-60$

substitute $t =\frac{x}{8}$ from equation 1.

$x=10(\frac{x}{8}) -60$

Rearrange the equation as:

$x - \frac{5}{4}x = -60$

$\frac{4x-5x}{4}=-60$

$-\frac{x}{4} = -60$

Using cross multiplication rule.

$x = 60\times 4$

x = 240 problems.

Therefore, 240 problems were on the test.

4 0

3 years ago

Solve for x:4(2x-1)=2x+35

Katyanochek1 [597]

8x-4=2x+35
8x-2x=35+4
6x=39
X=39/6

6 0

3 years ago

Read 2 more answers

Write 1/5 as a percent.

Softa [21]

Answer:

0.2

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Trains Two trains, Train A and Train B, weigh a total of 300 tons. Train Ais heavier than Train B. The difference of their weigh

Leona [35]

Train A = 214

Train B = 86

Hope I helped!!! ^^

_______________

列車A = 214

列車B = 86

私が助けてくれたらいいのに！^ ^

3 0

3 years ago

Interest = $30, Principal = ? Rate = 3%, Time = 4 years

Ahat [919]

Answer:

Simple interest is one of the most basic ways to calculate how much financing will cost you or how much you can earn on an investment. Check out our simple interest calculator to find out what you will pay or earn over time.

Step-by-step explanation: sorry lol

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3 years ago