3 years ago

What is the answer this I really need to know

Mathematics

1 answer:

jek_recluse [69]3 years ago

3 0

103 times 2 would be 206 so the answer is H

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2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5.

Elza [17]

First, simplify the expression $2r^2 + 3s^3 - r^2 + 4t^2 - r^2.$ Here you have three terms with $r^2,$ group them in the following way:

$2r^2 + 3s^3 - r^2 + 4t^2 - r^2=2r^2-r^2-r^2+3s^3+4t^2=(2r^2-r^2-r^2)+3s^3+4t^2=$

$=r^2(2-1-1)+3s^3+4t^2=3s^3+4t^2.$

Then substitute s=-3 and t=5:

$3s^3+4t^2=3\cdot (-3)^3+4\cdot 5^2=3\cdot (-27)+4\cdot 25=-81+100=19.$

Answer: 19.

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The sum or product of a non-zero rational number and an irrational number is always

vazorg [7]

The product of a non-zero rational and an irrational number is always irrational (2)

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true or false : If a number Y has Z positive integer factors, then Y and 2Z are integer factors. If true explain how

Maru [420]

Here's ur perfect answer

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3 years ago

2.5m to 150 cm <br>express these ratios in its simplest form.

oksano4ka [1.4K]

Answer:

The ratios in the simplest form is 5:3

Step-by-step explanation:

Given that:

2.5m to 150cm

We have to express these ratios in simplest form but we will convert the quantities into same unit first.

Therefore,

Converting meters into centimeters

1 meter = 100 cm

2.5 m = 100*2.5 = 250 cm

Ratio form;

250 cm : 150 cm

As both the number are multiples of 50,

$\frac{250}{50}:\frac{150}{50}\\5:3$

Hence,

The ratios in the simplest form is 5:3

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3 years ago

Find <img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B27%7D" id="TexFormula1" title="\sqrt[3]{27}" alt="\sqrt[3]{27}" align="a

dlinn [17]

Answer:

0.11

Step-by-step explanation:

your answer would be 0.11 I think.

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