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3 years ago

Evaluate the expression

Mathematics

2 answers:

GuDViN [60]3 years ago

6 0

I think the answer is 0.83, tell me is it correct ok, I try to help you

malfutka [58]3 years ago

5 0

Answer:

7/12 or 0.583333333333...

Step-by-step explanation:

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What is the product of -1 3/4 and 2 4/5 expressed as a mixed number

serious [3.7K]

-2 3/5 would be the answer to the problem

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3 years ago

S(n) is a function that square numbers it can be written in equation from as S (n) = N squart 2 what is the value of S(11)

Pani-rosa [81]

$f(n)=n^2$ is what I think you mean
$f(11)=11^2=121$

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4 years ago

If the work required to stretch a spring 2 ft beyond its natural length is 6 ft-lb, how much work is needed to stretch it 6 in.

mel-nik [20]

Answer:

0.375 feet-lb

Step-by-step explanation:

We have been given that the work required to stretch a spring 2 ft beyond its natural length is 6 ft-lb. We are asked to find the work needed to stretch the spring 6 in. beyond its natural length.

We can represent our given information as:

$6=\int\limits^2_0 {F(x)} \, dx$

We will use Hooke's Law to solve our given problem.

$F(x)=kx$

Substituting this value in our integral, we will get:

$6=\int\limits^2_0 {kx} \, dx$

Using power rule, we will get:

$6=\left[ \frac{kx^2}{2} \right ]^2_0$

$6=\frac{k(2)^2}{2}-\frac{k(0)^2}{2}$

$6=\frac{4k}{2}-0\\\\k=3$

We know that 6 inches is equal to 0.5 feet.

Work needed to stretch it beyond 6 inches beyond its natural length would be $\int\limits^{0.5}_0 {kx} \, dx =\int\limits^{0.5}_0 {3x} \, dx$

Using power rule, we will get:

$\int\limits^{0.5}_0 {3x} \, dx = \left [\frac{3x^2}{2}\right]^{0.5}_0$

$\frac{3(0.5)^2}{2}-\frac{3(0)^2}{2}\Rightarrow \frac{3(0.25)}{2}-0=\frac{0.75}{2}=0.375$

Therefore, 0.375 feet-lb work is needed to stretch it 6 in. beyond its natural length.

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3 years ago

What is the nearest whole number f or 8 1/8

mina [271]

8 1/8 rounded to the nearest whole number is 8. Hope this helps you out!

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3 years ago

−2√24+2√2−2√8 simplify

Kamila [148]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers