All categories

2 years ago

Slope Quiz ...........................................................

Mathematics

1 answer:

finlep [7]2 years ago

3 0

Answer:

I hope it helps you the answer is 10/9

You might be interested in

Choose an appropriate metric unit of a typical house cat

valentina_108 [34]

Your answer is gram hope this helps that is what unit to use :)

8 0

3 years ago

I want a way to solve this question

noname [10]

Answer:

Step-by-step explanation:

$cos~L=\frac{m^2+n^2-l^2}{2mn} \\=\frac{5^2+8^2-7^2}{2*5*8} \\=\frac{25+64-49}{80} \\=\frac{40}{80} \\=\frac{1}{2} \\=cos 60\\$

∠L=60°

5 0

2 years ago

Answers for all questions

abruzzese [7]

Answer:

3 and dived 30 multy is 182 is your answer

Step-by-step explanation:

1+1=2

8 0

3 years ago

The chemistry class was making 300 gallons of 30% isopropyl alcohol. They mixed 12% with 42%. How much of each did they use?

alexgriva [62]

Answer:

The chemistry class mixed 120 gallons of 12% isopropyl alcohol and 180 gallons of 42% isopropyl alcohol.

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Amount of isopropyl alcohol made by the chemistry class = 300 of 30%

Amount of 12% isopropyl alcohol mixed by the chemistry class = x

Amount of 42% isopropyl alcohol mixed by the chemistry class = 300 - x

2. How much of each did they use?

Let's write our equation to solve for x, this way:

30% = 0.3, 12% = 0.12, 42% = 0.42

0.12x + 0.42 (300 - x) = 0.3 * 300

0.12x + 126 - 0.42x = 90

-0.3x = 90 - 126

-0.3x = -36

x = -36/-0.3

x = 120 ⇒ 300 - x = 180

Let's prove x = 120 is correct

0.12x + 0.42 (300 - x) = 0.3 * 300

0.12 * 120 + 0.42 (300 - 120) = 0.3 * 300

14.4 + 75.6 = 90

90 = 90

We proved x = 120 is correct

5 0

3 years ago

identify a pattern in the given list of numbers. then use this pattern to find the next number. 1,5,1,10,1,20,1

saw5 [17]

40 the answer is 40. It’s very easy

5 0

3 years ago