Estimate the answer to 832.21 + 23.81 by first rounding each number to the nearest tenth.

Mathematics

2 answers:

ycow [4]3 years ago

4 0

852.21+23.81=856.02
so the answer is C) 856

Lelechka [254]3 years ago

3 0

I think the answer is c).because when we add these two numbers we get 856.2

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How would you find the area or perimeter of this shape?

Fittoniya [83]

The perimeter of a given shape implies the sum of all its sides. While the area of a given shape is the total value of space it would cover on a 2-dimensional plane.

The perimeter of the shape is 104 cm.

The area of the shape is 640 $cm^{2}$ .

The perimeter of a given shape implies the sum of all its length of sides., such that the value of each individual side is summed to a total value.

The area of a given shape is the total value of space it would cover on a 2-dimensional plane. The area of shapes depends on the type of shape.

In the given question, the given shape has 12 sides. Some of these sides can sum up to a given length as shown in the diagram.

So that;

perimeter = 2 + 32 + 10 + 10 + 2 + 32 + 8 + 8

= 104 cm

Thus, the perimeter of the shape is 104 cm

ii. The area of the shape = length x width

= 32 x 20

= 640 $cm^{2}$

Therefore, the area of the given shape is 640 $cm^{2}$ .

for more clarifications on the perimeter and area of a plane shape, visit: brainly.com/question/22909518

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4 0

2 years ago

Select two ratios that are equivalent to 27: 9. Choose 2 answers:

schepotkina [342]

Answer:

1. 9:3

2. 3:1

Step-by-step explanation:

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5 0

3 years ago

Which value of r indicates a stronger correlation: r equals=0.828 or r equals= −0.879? explain your reasoning?

vladimir1956 [14]

When comparing correlation, focus on the MAGNITUDE of r:

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3 0

3 years ago

13_,644=130,000

MrMuchimi

Answer:

The possible digits 0, 1, 2 , 3 or 4 .

Step-by-step explanation:

The possible digits that could go in the thousands place to make 13_,644 ≈ 130,000 this statement correct are: 0 1, 2,3 or 4.

For example: 132,644 may rounded off to 130,000

Round the number to the nearest thousand make the numbers whose last three digit through 644 into the next lower numbers that ends in 000.

Using number line for this possibility as shown in the below diagram: