3 years ago

1.25 x 8 - 1.5 please help me

Mathematics

2 answers:

evablogger [386]3 years ago

7 0

Answer:

The answer is, 8.5

Step-by-step explanation:

1.25×8=10

10-1.5=8.5

Anton [14]3 years ago

6 0

Hello The answer is 8.5

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I need help please ASAP im gonna fail if i dont get right will give 51 points

evablogger [386]

1. x = 20 , x² = 400 and x³ = 8000

2. x = 7 , x² = 49 and x³ = 343

Step-by-step explanation:

Given values are;

2000, 7, 400, 20, 4000, 200

We have to find x, x² and x³.

Part 1:

$x^3=8000$

We will take cube root to find x.

$\sqrt[3]{x^3} =\sqrt[3]{8000}$

$x=20$

Now, we will take square;

$(x)^2=(20)^2\\x^2=400$

Therefore;

x = 20 , x² = 400 and x³ = 8000

Part 2:

x² = 49 , x³ = 343

Taking square root on x²

$\sqrt{x^2}=\sqrt{49}\\x=7$

Therefore;

x = 7 , x² = 49 and x³ = 343

Keywords: cube root, square root

Learn more about cube root at:

#LearnwithBrainly

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4 years ago

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Tatiana [17]

Answer:

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Step-by-step explanation:

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3 years ago

The period of y= -3cos x/8 is

Marysya12 [62]

Y=7.8com %75 679000 then multiple them wait don't think got it right

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3 years ago

Solve pls correctly brainliest if correct!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

nikitadnepr [17]

Answer:

y=6

Step-by-step explanation:

The equation of the line with slope 2 is y=2x+b, b is a constant which should be determined. The line passes via through points (1, 2) and (3,y)

(1, 2): 2=2+b --> b=0

So, the equation of the line is y=2x. Now, when x=3, y=6. So the line y=2x passes through points (1, 2) and (3, 6). (3,y)=(3, 6).

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3 years ago

12% of what number is 42?

Andreyy89

Answer:

350

Step-by-step explanation:

12% = 0.12

42 / 0.12 = 350

3 0

3 years ago