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4 years ago

What is the probability of getting 60% or better on a true false exam with 50 questions

Mathematics

1 answer:

Ipatiy [6.2K]4 years ago

3 0

Answer:

41.1764...%

Step-by-step explanation:

60% on 50 questions is 30/50 correct since 30÷50=.6=60%

Between 30 and 50(inclusive) there are 21 numbers.(30,31,32...49,50).

There are 51 possibilities of scores,1-50/50 or 0/50

21/51=0.411764...

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A rectangular office is divided into two identical parts using a curtain as shown in the diagram.

alexgriva [62]

Answer:

200ft squared

Step-by-step explanation:

4 x 10 x 10 = 400

400 divided by 2 = 200

200 is the answer

5 0

4 years ago

No one has answered this one

krek1111 [17]

Answer:

$\displaystyle x = \frac{25\sqrt{2}}{2}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] cosθ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Define

Identify variables

Angle θ = 45°

Adjacent Leg = 25

Hypotenuse = x

Step 2: Solve for x

Substitute in variables [cosine]: $\displaystyle cos(45^\circ) = \frac{x}{25}$
[Multiplication Property of Equality] Multiply 25 on both sides: $\displaystyle 25cos(45^\circ) = x$
Rewrite: $\displaystyle x = 25cos(45^\circ)$
Evaluate: $\displaystyle x = \frac{25\sqrt{2}}{2}$

7 0

3 years ago

Please help me because I have to pass this bs

makkiz [27]

The answer is 10 because it starts at 25 and ends at 35 so 35-25=10

5 0

3 years ago

Which of the following is intended primarily to enhance a person's tax advantage and retirement income?

mr Goodwill [35]

B is the correct answer. An IRA, or individual retirement account, provides and enhances a person's tax advantages and retirement income. It can be individual, part of a trust fund, or company-based, for example from a life insurance company.

3 0

3 years ago

Read 2 more answers

Can someone help me out with the last three, will mark as brainliest if correct!

Scilla [17]

Answer:

x = 65

y = 71

z = 44

Step-by-step explanation:

y = 71 because If two parallel lines are cut by a transversal, then the alternate interior angles formed are congruent

8 0

3 years ago