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Mathematics

1 answer:

Rasek [7]2 years ago

3 0

Answer: A. 20%

Step-by-step explanation:

First, to find the total number of teachers, we can add 25+32+18+5+20=100

Next, we divide the number of teachers in 2014 (20) by the total number of teachers (100) as follows:

20 ÷ 100 = 0.2

Finally, to make 0.2 a percentage, we can multiply 0.2 X 100 = 20

Therefore, the correct answer is A.

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Help pls. This is proportional relationships in a graph?

madam [21]

Answer:

Yes, this is proportional, if that's what your asking.

Step-by-step explanation:

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3 years ago

Equal parts of a whole are called

dsp73

Answer:

Fractions are equal parts of a whole object or group of objects. To write a fraction, the numerator is the part and the denominator is the whole.

Step-by-step explanation:

When an object as a whole is divided into two parts, there are two possibilities. The parts may be equal or unequal. Each equal part of a whole is called one-half. It is expressed as 1/2 and read as one over two or one upon two.

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What is the following simplified product? Assume

Yanka [14]

<u>Answer:</u>

The correct answer option is D. $10x^4\sqrt{6}+x^3\sqrt{30x}-10x^4\sqrt{3}-x^3\sqrt{15x}$ .

<u>Step-by-step explanation:</u>

We are given the following expression:

$\left ( \sqrt { 10 x ^ 4 } -x \sqrt { 5 x ^ 2 } \right ) \left ( 2 \sqrt { 15 x ^ 4 } + \sqrt { 3 x ^ 3 } \right )$

Assuming that $x\geq 0$ , we are to find its simplified product.

$\left ( \sqrt { 10 x ^ 4 } -x \sqrt { 5 x ^ 2 } \right ) \left ( 2 \sqrt { 15 x ^ 4 } + \sqrt { 3 x ^ 3 } \right )$

$\\\\ = 2 \sqrt { 150 x ^ 8 } + \sqrt { 3 0 x ^ 7 }-2x\sqrt{75x^6}-x\sqrt{15x^5} \\\\ =2\sqrt{25\times6x^8}+x^3\sqrt{30x}-2x\sqrt{25\times3x^6}-x^3\sqrt{15x} \\\\ =10x^4\sqrt{6}+x^3\sqrt{30x}-10x^4\sqrt{3}-x^3\sqrt{15x}$