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2 years ago

A board is 3.5 m long. Four pieces, each.4 m long, are cut off. How much is left?

Mathematics

1 answer:

lys-0071 [83]2 years ago

8 0

Answer:

1.9 m

Step-by-step explanation:

3.5 - (4*0.4)

3.5 - 1.6 = 1.9

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Ludmilka [50]

The number "R" could be "A" and "D" because the range is 14 it cant be "B" or "C"

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2 years ago

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Jane moved from a house with 66 square feet of closet space to an apartment with 34.98 square feet of closet space. What is the

Kryger [21]

There is a 47% decrease in Jane's closet space.

Step-by-step explanation:

Old measurement of closet = 66 square feet

New measurement of closet = 34.98 square feet

Change = New value - Old value

Change = 34.98 - 66 = -31.02 square feet

The negative sign indicates the decrease.

Decrease percent = $\frac{Change}{Old\ value}*100$

$Decrease\ percent=\frac{31.02}{66}*100 = \frac{3102}{66}\\Decrease\ percent=47\%$

There is a 47% decrease in Jane's closet space.

Keywords: decrease, percentage

Learn more about percentages at:

#LearnwithBrainly

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3 years ago

Show 0.00015 in scientific notation

Misha Larkins [42]

I think that the answer is 15*10^5

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3 years ago

What Is the solution to the above system of equations? 2x+3y=11

Citrus2011 [14]

The answer would be C.
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3 years ago

Liz wants to estimate the percentage of people who rent their home. She surveys 320 individuals and finds that 176 rent their ho

SOVA2 [1]

Answer: 0.065

Step-by-step explanation:

Given : Sample size : n= 320

The sample proportion of people who rent their home : $p=\dfrac{176}{320}=0.55$

Significance level : $\alpha:1-0.98=0.02$

Then , Critical value : $z_{\alpha/2}=2.33$

The formula to find the margin of error : -

$E=z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}\\\\\Rightarrow\ E=(2.33)\sqrt{\dfrac{0.55(1-0.55)}{320}}\\\\\Rightarrow\ E=0.064799034281\approx0.065$

Hence, the margin of error for the confidence interval for the population proportion with a 98% confidence level =0.065

4 0

3 years ago

A board is 3.5 m long. Four pieces, each.4 m long, are cut off. How much is left?​

A board is 3.5 m long. Four pieces, each.4 m long, are cut off. How much is left?