2 years ago

This is a problem on my little bro's homework. I'm not the best at math but this really confused me:

Mathematics

1 answer:

timurjin [86]2 years ago

6 0

I think it would be 20/100

You might be interested in

What is the value of y?

babymother [125]

Answer:

${y} = 6\sqrt{3} \:units$

Step-by-step explanation:

By Pythagoras Theorem:

${y}^{2} = {(9 + 3)}^{2} - {(6)}^{2} \\ \\ {y}^{2} = {(12)}^{2} - {(6)}^{2} \\ \\ {y}^{2} = 144 - 36 \\ \\ {y}^{2} = 108 \\ \\ {y} = \sqrt{108} \\ \\ {y} = \sqrt{36 \times 3} \\ \\ {y} = \sqrt{ {6}^{2} \times 3} \\ \\ {y} = 6\sqrt{3}\:units$

3 0

2 years ago

Read 2 more answers

You need a 45% alcohol solution. On hand, you have a 350 mL of a 15% alcohol mixture. You also have 70% alcohol mixture. How muc

jarptica [38.1K]

Answer:

420

Step-by-step explanation:

Amount in the 45% solution + amount in the 70% solution = amount in the 45% solution

0.15 × 350 + 0.70 × V = 0.45 × (350 + V)

52.5 + 0.70V = 157.5 + 0.45V

0.25V = 105

V = 420

You need 420 mL of the 70% solution.

5 0

3 years ago

NO LINKS!!

victus00 [196]

Step-by-step explanation:

Given function:

y = |x + 4| - 1

See the graph below

According to the graph we see that

The minimum is (-4, -1) and zero's are (-5, 0) and (-3, 0)

Function is positive:

When x < - 5 and x > -3

Negative:

When x is between -5 and -3

Increasing:

When x > -4

Decreasing:

When x < -4

6 0

2 years ago

Solve for x. help pls im stressed

Art [367]

Dont be Stressed Im here

X=6

8 0

2 years ago

Determine the equation of a horizontal line that passes through (4,7)

professor190 [17]

Y=7 because there is no slope and the Y intercept is at 7.

5 0

3 years ago