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3 years ago

Question 1 Which of the following is a rational number? (15./16, 121, V22

Mathematics

1 answer:

mel-nik [20]3 years ago

6 0

Answer:

$\sqrt{22}$

Should be the answer

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PLEASE HELP ASAP! WILL GIVE BRAINLIEST

goldenfox [79]

This should be right.

Part A:

-mk - 110 > 75

-mk > 185

m < 185/-k (Fraction)

m < - 185/k (Fraction)

Part B:

2c - 8f + 24

-8f = 24 - 2c

f = 24/-8 -2c/-8

f = 3 + 1/4 c

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2 years ago

Order the numbers from least to greatest: -5, 6, and 9.

julsineya [31]

Answer: -5, 6, and 9

Step-by-step explanation:

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3 years ago

Read 2 more answers

726,000 scientific notation<br><br>

il63 [147K]

Answer:

7.26000 × $10^{5}$

I hope this helps!

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2 years ago

Read 2 more answers

The approximate molar concentration of several chemicals are given. Find the pH of each use the calculator and round to the near

mojhsa [17]

Answer:

$pH = 13$ --- Oven Cleaner

$pH = 6.2$ --- Water

$pH =7.4$ --- Blood

$pH = 2.2$ --- Vinegar

Step-by-step explanation:

The given molar concentration are:[Missing from the question]

Oven Cleaner: [h+] = $10^{-13}$

Water: [h+] = $0.0000007$

Blood: [h+] = $0.00000004$

Vinegar: [h+] = $0.0063$

Required

Determine the pH

pH is calculated using:

$pH = -\log(h+)$

So, we have:

Oven Cleaner:

$pH = -\log(10^{-13})$

Using a calculator, we have:

$pH = 13$

Water:

$pH = -\log(0.0000007)$

Using a calculator, we have:

$pH = -1*-6.2$

$pH = 6.2$

Blood:

$pH = -\log(0.00000004)$

Using a calculator, we have:

$pH = -1 * -7.4$

$pH =7.4$

Vinegar:

$pH = -\log(0.0063 )$

Using a calculator, we have:

$pH = -1 * -2.2$

$pH = 2.2$

4 0

3 years ago

How do you do (3² × 2) ÷ 5 and 32 ÷ 2³× 3² + 14<br> plzz I NEED HELP and THXS

Goshia [24]

First one 3.5 or in fraction 18/5
Second one 16.25

7 0

2 years ago