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3 years ago

Which number I greater 20% or 0.02

Mathematics

1 answer:

Oksana_A [137]3 years ago

5 0

20% can also be written as 0.2
0.02 can also be written as 2%
Therefore 20% is greater than 0.02.

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In ΔTUV, the measure of ∠V=90°, TV = 28, UT = 53, and VU = 45. What ratio represents the cosecant of ∠U?

ira [324]

Answer:

Cosecant U = 53 / 28

Step-by-step explanation:

Please see attached photo for diagram.

We'll begin by calculating the ratio of sine U. This can be obtained as follow:

Angle U = θ

Opposite = 28

Hypothenus = 53

Sine U =?

Sin θ = Opposite / Hypothenus

Sine θ = 28 / 53

Thus,

Sine U = 28 / 53

Finally, we shall determine the ratio of cosecant U. This can be obtained as follow:

Sine U = 28 / 53

Cosecant U =?

Cosecant U = 1 / Sine U

Cosecant U = 1 ÷ 28 / 53

Cosecant U = 1 × 53 / 28

Cosecant U = 53 / 28

3 0

3 years ago

It takes Peter 4 hours to walk 12 miles.If he continues to walk at the same rate, how long will it take him to walk:

blondinia [14]

Answer:

a]2.3 hrs

b]3.6hrs

Step-by-step explanation:

4hrs = 12 miles

x = 7miles

4 x 7=28/12=2.3

4 x 11=44/12=3.6hrs

6 0

4 years ago

Read 2 more answers

What is the equation, in point-slope form, for a line that goes through (8, −4) and has a slope of −56 ?

olga55 [171]

The point-slope form:

$y-y_1=m(x-x_1)$

We have the point (8, -4) and the slope m = -56. Substitute:

$y-(-4)=-56(x-8)\\\\\boxed{y+4=-56(x-8)}$

6 0

4 years ago

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A migrating bird flies 312 miles in 13 hours. How many miles does it fly in 5 hours?

irinina [24]

The answer is 120 miles , because it is a proportion

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3 years ago

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population

postnew [5]

Answer:

We have been given confidence interval 95%, mean 20 , data set 30 and standard deviation 3.

We will use the formula: $mean\pm \frac{\sigma}{\sqrt{n}}\cdot (z-score)$

Here, $mean=20,\sigma=3,n=30,z-score=1.96$

Z-score value at 95% confidence interval is 1.96

On substituting the values in the formula to plug the values:

$20\pm\frac{3}{\sqrt{30}}\cdot (1.96)$

Now, we have a formula for marginal error: $z\cdot \frac{\sigma}{\sqrt{n}}$

Marginal error means your answer will be within that percentage only.

Say you have 3% marginal means your value will be within 3% real population 95% of the time.

7 0

4 years ago