SAT : asked on joshua1255
 11.06.2020

The diagram shows light interacting with an object.
A blue box has 3 black arrows pass from left to right to its left surface, which they strike at a shallow angle. The arrows then become lines, which move through the box at a different angle. The arrows reemerge as arrows from the right side at the same angle at, which they first struck the box.
Which object is the light most likely striking?
a window
a mirror
a plaster wall
a steel beam

. 7

Faq

SAT
Step-by-step answer
P Answered by PhD
The graph tells us that Ralph's performance has gradually been getting worse, Jill's performance has been improving over time, Tina has overall been stable and good in her performance, that Ed's performance has been erratic and that Sam's performance has been inconsistent but improving.
SAT
Step-by-step answer
P Answered by Master

B. use a familiar concept to communicate an idea

Explanation:

Basically, Passage 2 states the hypothesis that spotted green pigeon is a descendant of an island hopping bird and throughot the article, it provides evidence for this statement.

The discovery is that, since the DNA found in a green pigeon's feather was fragmented and they had to analyze only parts of it, the bird had an unique sets of DNA which distinguish it from other members of the pigeon species.

These analyzed parts of DNA are refered to as "mini barcodes".

Since target audience for this article might not be fully familiar with the concept and functions od DNA, researchers used a more familiar concept of barcodes as an analogy to communicate their idea and explain their discovery.

SAT
Step-by-step answer
P Answered by Master

The answer is: teller, loan officer, and tax preparer

Teller act as a front liner on banks who deals directly with the customers. The main job of a teller is to assist the people in making their transaction in the bank.

The main duty of a loan officer is to finds potential clients who need capital injection and assists them in acquiring loans.

Tax prepares help their clients in examining their tax report in other to find out the items that can be used as tax returns.

SAT
Step-by-step answer
P Answered by Specialist
Goals must follow this theory becasue when we have good goals we need to set Achievable goals, Established Important goals for us and Outline those Under your control. Its is a theory that definitely helps to underline goals in a better way
SAT
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P Answered by Master

Sucrose is disaccharide composed of glucose linked to galactose is the statement that is not true about carbohydrate structures.

Sucrose is a disaccharide, which means it includes two units of monosaccharide linked together. Each type of disaccharide is composed of different units.

Maltose : Two units of glucoseLactose: One unit of glucose and one of galactose.

In the case of Sucrose, this is composed of one unit of glucose and one unit of fructose. This disaccharide can be found in common sugar, this means the statement "e" is false because sucrose does not have galactose, instead galactose can be found in lactose, which is a different disaccharide.

Learn more in: link

SAT
Step-by-step answer
P Answered by Master

Qualified terms include: sometimes, maybe, may, possibly, some, few Absolute terms include: always, never, only, must Qualified and absolute terms can change the possibility of an answer being correct, by simply including an always, only, or never in the test question.

Explanation:

sample answer

SAT
Step-by-step answer
P Answered by Master

The mean of the distribution is 4.00 and the standard deviation is 2.31

Explanation:

Given

Range = 2 to 10

Type of distribution = uniform distribution

Required

1. Mean

2. Standard Deviation

The mean of uniform distribution is calculated as thus;

Mean = \frac{1}{2}(a + b)

Where b and a are the intervals of the distribution

b = upper bound = 10

a = lower bound = 2

So,

Mean = \frac{1}{2}(a + b)

Substitute 10 for b and 2 for a

Mean = \frac{1}{2}(2 + 10)

Mean = \frac{1}{2}(12)

Mean = \frac{1}{2} * 12

Mean = 6

Mean = 6.00 (Approximated to 2 decimal places)

The standard deviation of uniform distribution is calculated as thus;

σ = √σ²

Where σ represents the standard deviation and σ² represents the variance.

Calculate variance

σ² = Var

Var = \frac{(b-a)^2}{12}

Substitute 10 for b and 2 for a

Var = \frac{(10 - 2)^2}{12}

Var = \frac{8^2}{12}

Var = \frac{64}{12}

Var = 5.33

Recall that

σ = √σ² = √Var

Substitute 5.33 for Var

σ = √5.33

σ = 2.309401076758503

σ = 2.31 (Approximated)

Hence, the mean of the distribution is 4.00 and the standard deviation is 2.31

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