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3 years ago

Cómo simplificar 2/3 paso a paso

Mathematics

1 answer:

slamgirl [31]3 years ago

4 0

Answer:

No sé pude simplificar ya que ambos no tiene divisores en común. Pero si lo deseas dividir daría como resultado: 2 ÷ 3 = 0.6666666667

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An engineer is planning a new water pipe installation. The circular pipe has a diameter of d=20cm.

Komok [63]

We know that
the area A of the circular cross section of the pipe is
A=pi*r²
D=20 cm------------- > r=D/2=20/2=10 cm
then
A=pi*10²=100*pi cm²

the answer is A=100*pi cm²

6 0

3 years ago

What is the answer to this somebody!!!

Galina-37 [17]

So with this, you'll be using a proportion to solve it. And here's what your equation will look like:

$\frac{30}{x} =\frac{x}{24}$

Firstly, you'll need to cross-multiply. Your equation will look like this: $720=x^2$

For this, all you need to do is square root, and your answer is $\sqrt{720} =x$ , however this answer can be simplified further.

$\sqrt{720} =\sqrt{30*24} =\sqrt{5*6*6*4}=\sqrt{5*3*2*3*2*2*2} =4*3\sqrt{5} =12\sqrt{5}$

In short, your answer is $12\sqrt{5}$

7 0

3 years ago

When flying at an altitude of 5 miles, the lines of sight to the horizon looking north and south make about a 173.7 degree angle

oksian1 [2.3K]

5 miles high is one of the sides of a triangle depending on accuracy level
h^2=x^2+y^2
we don't have 2 distances
Tan A=O/a
O=a tan A
We solve for O because the angle is at the top of the line going up and we want the opposite angle that is along the ground
O=5×tan(173.7/2)=90.854033512
The distance he can see is:
90.85*2~181.7 miles

Now we need to find the distance between lines:
The north south distance between each line is 69 miles
thus the number of degrees he will see will be:
181.7/69
=2 19/30

7 0

4 years ago

Combine terms: 12a + 26b -4b – 16a.

Liula [17]

Answer:

C. -4a + 22b

Step-by-step explanation:

12a + 26b -4b – 16a

= 12a – 16a + 26b – 4b

= -4a + 22b

5 0

3 years ago

Read 2 more answers

The quality-control manager at a compact fluorescent light bulb (CFL) factory needs to determine whether the mean life of a la

Taya2010 [7]

Answer:

The mean life of a large shipment of CFL bulbs is equal to 7,520 hours.

Step-by-step explanation:

The quality control manager wants to determine whether the mean life of a large shipment of CFL bulbs is equal to 7,520 hours.

The quality control manager can use a one-sample test to determine whether the mean life is 7,520 hours or not.

The hypothesis can be defined as follows:

H₀: The mean life of a large shipment of CFL bulbs is equal to 7,520 hours, i.e. μ = 7520.

Hₐ: The mean life of a large shipment of CFL bulbs is different from 7,520 hours, i.e. μ ≠ 7520.

The information provided is:

$\sigma=1200\\n=64\\\bar x=7324$

As the population standard deviation is provided, we will use a z-test for single mean.

Compute the test statistic value as follows:

$z=\frac{\bar x-\mu}{\sigma/\sqrt{n}}=\frac{7324-7520}{1200/\sqrt{64}}=-1.31$

The test statistic value is -1.31.

Decision rule:

If the p-value of the test is less than the significance level then the null hypothesis will be rejected.

Compute the p-value for the two-tailed test as follows:

$p-value=2\times P(Z$

*Use a z-table for the probability.

The p-value of the test is 0.1902.

The p-value of the test is very large for all the commonly used significance level. The null hypothesis will not be rejected.

Thus, it can be concluded that the mean life of a large shipment of CFL bulbs is equal to 7520 hours.

4 0

3 years ago

Read 2 more answers

Cómo simplificar 2/3 paso a paso​

Cómo simplificar 2/3 paso a paso