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3 years ago

1.42 + 0.5 is ______ Response area 5 – 3.09

Mathematics

2 answers:

Dominik [7]3 years ago

8 0

2.09 is what you are looking for

erik [133]3 years ago

3 0

2.09 is the right answer!

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What is -5+10x+10x-5

Goshia [24]

Answer:

-10+20x

Step-by-step explanation:

-5+10x+10x-5

-5-5+20x

-10+20x

3 0

3 years ago

Read 2 more answers

MARKING BRAINLIEST, PLEASE HELP.

Nana76 [90]

Answer:

360 degrees

Step-by-step explanation:

a rectangle has a total of 360 degrees and all the x and y values are at the corners so...

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3 years ago

LAST ATTEMPT! MARKING AS BRAINLIEST!! ( simplifying radicals)

serious [3.7K]

$\huge \bf༆ Answer ༄$

Let's solve ~

$\qquad \looparrowright \sf - 7 \sqrt{80 {x}^{4} y {}^{2} }$

$\qquad \looparrowright \sf - 7 \sqrt{2 {}^{4} \times 5 \times {x}^{4} \times {y}^{2} }$

$\qquad \looparrowright \sf - 7 \times {2}^{2} \times {x}^{2} \times y \times \sqrt{5}$

$\qquad \looparrowright \sf - 28 {x}^{2} y \sqrt{5}$

Therefore, Option D is correct ~

8 0

3 years ago

A can in the shape of a right cylinder is filled with 10W-40 oil. The weight of 10W-40 oil is 0.857 gram per cubic centimeter. I

disa [49]

First find the area of the cylinder using the following formula
$A = 2\pi rh + 2\pi r^2$
$A = (2 \times \pi \times 6 \times 10) + (2 \times \pi \times 6^2)$

After finding the area, <span>calculate the weight of the oil (in grams) in the can
</span>
weight in grams = A times 0.857

4 0

3 years ago

A psychological researcher did a study with a sample of 84 boys and found that the meam length of time that they remained engage

Varvara68 [4.7K]

Sample size= n= 84
sample mean= x = 107 s
population standard deviation =σ= 11.7

As, population standard deviation is given so we use the estimate:
x(+/-) z(α/2)(σ/√n)

At 99% Confidence interval means significance level is α=1-0.99= 0.01
So,
α/2=0.005
Now, z at α/2=0.005
z= 2.576
Now, by putting values
107(+/-)((2.576)(11.7/√84))
( 107-((2.576)(11.7/√84)), 107+((2.576)(11.7/√84)) )
(103.7, 110.288)

4 0

3 years ago