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1 year ago

BRIANLIEST!!!!! ANSWER THE QUESTIONS

Mathematics

1 answer:

tino4ka555 [31]1 year ago

7 0

Answer:

1. D- All of the above

2. B- The material the acid is poured on

3. C- Mass of the ball

4. A- Temperature

Step-by-step explanation:

2. The control variable is what stays the same so the material the acid is poured on must be the same as different materials have different reactions to acids.

3. The independent variable is what's being changed and in this experiment the mass of the ball is changed each time

4. The independent variable is what's being changed and in this experiment the temperature is different in each cup.

Hope this helped! :)

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lions [1.4K]

Answer:

x < -55
x ≤ 3
x > 1

Step-by-step explanation:

x/-5 + 17 > 4

-1/5x + 17 > 4

-1/5x > -13

x < -65

3x - 27 ≤ -18

3x ≤ 9

x ≤ 3

-6x - 1 < -7

-6x < -6

x > 1

Best of Luck!

6 0

2 years ago

Read 2 more answers

F(x)=3x²+4x-1<br>evaluate f(-2)

gtnhenbr [62]

Answer:

Step-by-step explanation:

f(-2) = 3(-2)^2 + 4(-2) - 1

= 12 - 8 - 1

= 3.

6 0

3 years ago

Solve this I'll give brainliest plz look at the picture

Diano4ka-milaya [45]

Answer:

answer is B

Step-by-step explanation:

the number that 10% of 20 is coming from 200 so 23% of 200 is 46

8 0

2 years ago

Use the image below to describe at least three different ratios, written in simplest form. Include at least one part-to-part rat

9966 [12]

The different ratios are 2 : 7, 2 : 9 and 7 : 9

<h3>How to determine the ratio?</h3>

The statement is given as:

8 out of 36 squares unfilled

This means that:

There are 36 squares
8 are unfilled
28 are filled

The part-to-part ratio is represented as:

Ratio = Unfilled : Filled

This gives

Unfilled : Filled = 8 : 28

Simplify

Unfilled : Filled = 2 : 7

The part-to-whole ratios are represented as:

Ratio = Unfilled : Total

Ratio = Filled : Total

So, we have:

Unfilled : Total = 8 : 36

Filled : Total = 28 : 36

Simplify

Unfilled : Total = 2 : 9

Filled : Total = 7 : 9

Hence, the different ratios are 2 : 7, 2 : 9 and 7 : 9