A department manager is planning a presentation on how data platforms work but needs to simplify the language for the audience to better understand the main steps. Which three steps most accurately describe the manager's approach?

Answer:

The sentences in the present continuous are:

a) Jane is riding a bike this weekend.

b) I am jumping in the party right now.

c) My friend is doing the school's work tonight.

d) My mother is making a cake this weekend.

e) My friends and I are riding our bikes this weekend. We are enjoying it very much.

f) George is wearing long hair.

g) I am bringing a snack to school today.

h) I am sleeping until late tomorrow.

i) I am thinking of going to London next year.

j) I am playing computer games in my bedroom.

Explanation:

The present continuous structure is the following:

subject + am/is/are + main verb with -ing

We need to pay attention to the use of the present continuous as well before we can transform the sentences. The present continuous is used to refer to actions that are taking place at the moment of speaking or that are to happen in a nearby future. Notice that the present continuous cannot be used for habitual actions - that is for the simple present. That is why, in the sentences above, more changes were necessary. Instead of "all the weekends," which refers to a habitual action, for instance, we can use "this weekend".

NOTE: For letter F, I needed to change the verb. In English, "George is having long hair" is not an acceptable structure.

Explanation:

a.jane is riding a bike every weekends.

b.I am jumping in all the particles that I go.

c.my friend is not doing the schools work at night.

d.my mother is making cake every weekend.

e.my friends and I am riding bike every weakend.we are enjoying it very much.

f.goerge is having a long hair.

g.I am bringing snack to school everyday.

h.I am sleeping late everyday.

i.I am thinking to go to London next year.

j.I am playing computer games in my bedroom.

The correct present continuous tense from the above exercise is that Jane is riding a bike every weekends, I am jumping in all the particles that I go, and my friend is not doing the school's work at night.

What is present continuous tense?The present continuous tense is also called as the present progressive or present imperfect tense.

It is a verb form that combines the present tense with the continuous aspect in modern English. It's made up of the present tense form of be and a verb's present participle.

a. Jane is riding a bike every weekends.

b. I am jumping in all the particles that I go.

c. My friend is not doing the school's work at night.

d. My mother is making cake every weekend.

e. My friends and I am riding bike every weekend. We are enjoying it very much.

f. George is having a long hair.

g. I am bringing snack to school every day.

h. I am sleeping late every day.

i. I am thinking to go to London next year.

j. I am playing computer games in my bedroom.

Answer:

January had a higher z-score for sales on the 15th, and the value of that z-score was of 0.5.

Step-by-step explanation:

z-score:

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

January:

The mean daily sales for January was $300 with a standard deviation of $20. On the 15th of January, the shop sold $310 of yogurt. This means, respectively, that \mu = 300, \sigma = 20, X = 310. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{310 - 300}{20}

Z = 0.5

February:

The mean daily sales for February was $320 with a standard deviation of $50. On the 15th of February, the shop sold $340 of yogurt. This means, respectively, that \mu = 320, \sigma = 50, X = 340. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{340 - 320}{50}

Z = 0.4

January had a higher z-score for sales on the 15th, and the value of that z-score was of 0.5.

Answer:

For each glucose that enters glycolysis,  2 acetyl CoA enter the citric acid cycle.

Explanation:

SYNTHESIS OF 2Acetyl CoA -:

The glucose is transformed into 2pyruvate (6 carbon molecules are converted into 2 -3 carbon molecules) during glycolysis. In both aerobic and anaerobic respiration, glycolysis occurs frequently. This process takes place in the cytoplasm (it does not require oxygen or mitochondria), but if both oxygen and mitochondria are present, two molecules of pyruvate join mitochondria and prepare for citric acid cycle.

Until entering this, the molecules go through a mechanism known as the linked (connects glycolysis with citric acid cycle) reaction, in which the pyruvate molecule is transformed into 2 acetyl CoA (meaning 3 carbon molecules are converted into 2 carbon molecules) and a carbon molecule is released in the form of 2CO_2 (waste product).

2NAD+ and NADH are synthesized in the linked reaction, implying that reducing power is produced. It means that electrons from pyruvate are released in the form of hydrogen, which 2NAD+ accepts and reduces to form 2 NADH.          

Glucose → 2pyruvate → 2Acetyl CoA

Linked reaction is also known as oxidative -dicarboxylation.

Hence,  2 Acetyl CoA is required to enter citric acid cycle.