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3 years ago

Plzzz help meeee!! I dont know this just helpin a friend!

Mathematics

1 answer:

Dennis_Churaev [7]3 years ago

7 0

okay... THE ANS IS 5/35 IS THE RIGHT ONE

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Suppose that you are a teacher with a total of 100 students 10 among them come from a disadvantaged and their average in year 1

IceJOKER [234]

Answer:

89/100

Step-by-step explanation:

The average weighted by the number of students is ...

(90(0.90) +10(0.80))/100 = (81 +8)/100 = 89/100

4 0

3 years ago

Please help! acellus

ch4aika [34]

Answer:

The number that belongs in the green box is equal to 909.

General Formulas and Concepts:
Algebra I

Equality Properties

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

Trigonometry

[Right Triangles Only] Pythagorean Theorem:
$\displaystyle a^2 + b^2 = c^2$

a is a leg
b is another leg
c is the hypotenuse

Step-by-step explanation:

Step 1: Define

Identify given variables.

a = 30

b = 3

c = x

Step 2: Find x

Let's solve for the general equation that allows us to find the hypotenuse:

[Pythagorean Theorem] Square root both sides [Equality Property]:
$\displaystyle \begin{aligned}a^2 + b^2 = c^2 \rightarrow c = \sqrt{a^2 + b^2}\end{aligned}$

Now that we have the formula to solve for the hypotenuse, let's figure out what x is equal to:

[Equation] Substitute in variables:
$\displaystyle \begin{aligned}c & = \sqrt{a^2 + b^2} \\x & = \sqrt{30^2 + 3^2}\end{aligned}$
Evaluate:
$\displaystyle \begin{aligned}c & = \sqrt{a^2 + b^2} \\x & = \sqrt{30^2 + 3^2} \\& = \boxed{ \sqrt{909} } \\\end{aligned}$

∴ the hypotenuse length x is equal to √909 and the number under the square root, our answer, is equal to 909.

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Learn more about Trigonometry: brainly.com/question/27707750

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Topic: Trigonometry

3 0

2 years ago

How to divide fractions

Anna [14]

First leave the first fraction alone.

Then turn the division sign into a multiplication sign.

Flip the second fraction over ( find its reciprocal ).

Multiply the numerators of the two fractions together. This result will be the numerator ( the top part ) of your answer.

Multiply the denominators of the two fractions together. The result will be the denominator ( the bottom part ) of your answer.

Then simplify your fraction by reducing it to the simplest terms.

7 0

3 years ago

Read 2 more answers

Simplify 27^2. please (thxx)

adoni [48]

Answer:

729

Step-by-step explanation:

Raise 27 to the power of 2.

729

4 0

3 years ago

Helppppppppppppppppppppppppppppppppppppppppppppppppppppp

DiKsa [7]

Answer:

8.40049 × 10^7

Step-by-step explanation:

4 0

3 years ago