Janet wanted to understand the whether grade level had any relationship

PLS PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS

hram777 [196]

Answer:

-2, 9

Step-by-step explanation:

8 0

2 years ago

If the sine of an angle equals to {2}/{5}, then the tangent of the angle could be:

Leona [35]

Answer:

If the sine of an angle equals to {2}/{5}, then the tangent of the angle could be:

5. $\frac{2}{\sqrt{21} }$

Step-by-step explanation:

Imagine a triangle

The sine of an angle is equal to the length of the opposite leg over the hypotenuse.
HINT: SOHCAHTOA

To find the adjacent leg (a):

Using the pythagorean theorem: $a^{2} + b^{2} =c^{2}$

- a and b are the lenght of the sides and c is the hypotenuse

we know one side and the hypotenuse. Therefore plugging into the formula we get:

$a^{2} + 2^{2} =5^{2}$

where a is the adjacent leg of the triangle, solving for a we get:

$a^{2} =5^{2}- 2^{2}$

$a^{2} = 21$

$a = \sqrt{21}$

To find the tangent of the angle:

Since tangent is opposite leg over the adjacent leg:

tan θ = $\frac{2}{\sqrt{21} }$

4 0

3 years ago

How many 3/4 teaspoons of salt are in 1/3 of a teaspoon of salt?

NemiM [27]

First You Need To Convert 3/4 And 1/3 To A LCD Of 12. 4/12 Divided By 9/12. You Can Flip The Second # And Then Multiply Across. 4/12 Times 12/9 OR 1/3 Times 4/3. Four Ninths Is The Final Answer. 4/9.

8 0

3 years ago

Cathy drank 600 milliliter of water at school and another 400 milliliter at home.How many liters of water did Cathy drink?

motikmotik

600 + 400 milliliters = 1,000 milliliters.

However, the question is asking how many liters she drank. 1 liter = 1,000 milliliters, so that means Cathy drank 1 liter of water.

6 0

4 years ago

We conduct a study to determine whether the majority of community college students plan to vote in the next presidential electio

Marizza181 [45]

Answer:

we can conclude that more than 50% of community college students plan to vote in the next presidential election

Step-by-step explanation:

Decision Rule

If;

P-value > significance level --- accept Null hypothesis

P-value < significance level --- reject Null hypothesis

Z score > Z(at 95% confidence interval) ---- reject Null hypothesis

Z score < Z(at 95% confidence interval) ------ accept Null hypothesis

Null hypothesis H0: 50% of community college students plan to vote in the next presidential election

H0: p = 0.50

Ha: More than 50% of community college students plan to vote in the next presidential election

Ha: p > 0.50

P-value = 0.02

From the decision rule;

Since the p-value for this study is less than the significance level.

0.02 < 0.05

So, we reject the null hypothesis, there is enough evidence to reject the null hypothesis. We thereby accept the alternative hypothesis.

Therefore, we can conclude that more than 50% of community college students plan to vote in the next presidential election

4 0

3 years ago