Approximately 10% of all people are left-handed. Consider a group of fifteen people.

How to train your brain for the ACT,SAT

zaharov [31]

Answer:

study, focus, avoid ditraction i think, etc

Explanation:

education is important, dont cheat, be happy and kind always, u got this :D

5 0

3 years ago

Read 2 more answers

webber enterprises sells its business language dictionary app to college students throughout the united states. joseph webber, t

julsineya [31]

Answer:

TWENTY

Explanation:

3

8 0

3 years ago

If 50. 0 g of ch₃oh (mm = 32. 04 g/mol) are added to a 500. 0 ml volumetric flask, and water is added to fill the flask, what is

Elza [17]

Taking into account the definition of molarity, the concentration of CH₃OH in the solution is 3.12 $\frac{moles}{liters}$ .

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

$Molarity=\frac{number of moles}{volume}$

Molarity is expressed in units $\frac{moles}{liters}$ .

<h3>Concentration of CH₃OH</h3>

In this case, you know:

number of moles= 50 g× $\frac{1 mole}{32.04 g}$ = 1.56 moles, being 32.04 $\frac{g}{mole}$ the molar mass of CH₃OH
volume= 500 mL= 0.5 L (being 1000 mL= 1 L)

Replacing in the definition of molarity:

$Molarity=\frac{1.56 moles}{0.500 L}$

Solving:

<u><em>Molarity= 3.12 </em></u> $\frac{moles}{liters}$

Finally, the concentration of CH₃OH in the solution is 3.12 $\frac{moles}{liters}$ .

Learn more about molarity:

<u>brainly.com/question/9324116</u>

<u>brainly.com/question/10608366</u>

<u>brainly.com/question/7429224</u>

8 0

2 years ago

Frank, who lives in texas, and his sister lilly, who lives in japan, correspond regularly. From what he can tell from the postma

ehidna [41]

Answer:

(A) There is convincing evidence that there is no difference in the mean delivery times.

(B) There is convincing evidence that there is a difference in the mean delivery times.

(C) There is convincing evidence that the mean delivery time from Japan to Texas is greater than the mean delivery time from Texas to Japan.

(D) There is not convincing evidence that the mean delivery time from Japan to Texas is greater than the mean delivery time from Texas to Japan.

(E) The t-test cannot be used for sample sizes that are this small.

Explanation:

The correct option is;

(A) There is convincing evidence that there is no difference in the mean delivery times.

Step-by-step explanation:

Here we have the formula for the two-sample t-test given s;

To Texas N₁ = 12, =8.74 σ₁ = 2.92 SE Mean₁ = 0.84

To Japan N₂ = 9 = 6.75 σ₂ = 2.56 SE Mean₁ = 0.85

t = 1.667

Where the null hypothesis is

mu To Texas = mu To Japan and the alternative is

mu To Texas > mu To Japan

Here since the observed P value of P = 0.058 is greater than the significance level of 0.05 we fail to reject the null hypothesis and we will therefore, not accept the alternative hypothesis.

Hence, there is convincing evidence that there is no difference in the mean delivery times.

3 0

2 years ago

Name one example of when jesus forgave sinners in his public ministry

Ugo [173]

Hello there!

One example when Jesus forgave sinners in his public ministry is when He forgave and healed a paralyzed man (Matthew 9:1-8).

The account is told in Matthew 9. Some men brought to Him a paralyzed man lying on a mat. Jesus then told the man "Take heart,<span> son; your sins are forgiven.” (Matt 9:2).

Some Jews were mumbling to themselves, saying that Jesus was blaspheming, but then He said "</span>Which is easier: to say, ‘Your sins are forgiven,’ or to say, ‘Get up and walk’?<span> " (Matt 9:5).

To demonstrate that He had authority to forgive sinners, he commanded the man to get up and walk, and the man got up and went home. The crowd was filled with awe for this great miracle and demonstration of power.

Have a nice day!</span>

7 0

3 years ago