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Tcecarenko [31]
3 years ago
13

Find the distance between the points (-4,-2) and (3,3)

Mathematics
1 answer:
kati45 [8]3 years ago
3 0

Answer:

8.6

Step-by-step explanation:

Use the distance formula to find the distance between the two points.

√[(x₂ - x₁)² + (y₂ - y₁)²]

√[(3 - -4)² + (3 - -2)²]

√[(7)² + (5)²]

√[(49) + (25)]

√74

8.6

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Is 300 degrees the same as -60 degrees in a drawing?
PolarNik [594]
No. 

Inside a circle, where the lines are drawn inside a 300 degrees angle will correspond with a 60 degrees angle, but the shaded parts are different. However, there is technically no such thing as a negative angle, so your answer is No.

hope this helps
8 0
3 years ago
The volume of a sphere is 2145 cubic centimeters. What is the approximate diameter of this sphere?
eimsori [14]

Answer:

d = 2(40.11 cm) = 80.22 cm

Step-by-step explanation:

The formula for volume of a sphere is V = (4/3)πr³

and here V = (4/3)πr³ = 2145 cm³

Let's simplify this equation by multiplying both sides by (3/4); this will cause (4/3) to disappear:

(3/4)(4/3)πr³ = (3/4)2145 cm³, or

                 r³ = 1608.75 cm³

Taking the cube root of both sides, we get:

                  r = 40.11 cm

Remembering that diameter = 2 times radius, we calculate the diameter:

                  d = 2(40.11 cm) = 80.22 cm

6 0
4 years ago
An engineer estimated the weight of a steel beam to be 600 pounds. The actual weight of the beam was 639 pounds. Find the absolu
ser-zykov [4K]

Answer:

Absolute: 39 pounds

Relative: 6.5%

Step-by-step explanation:

To find the absolute difference, we simply have to see by how much pounds the estimation was off.

The real measure was 639 pounds, the estimated weight was 600.

D = 639 - 600 = 39 pounds.

For the percent of error, we divide the absolute difference (39) by the real value (639) and we'll get the % of error.  So,

%D = 39 / 600 = 0.0610, so 6.1%

We don't need to round it to the nearest tenth, since it's already to that precision level.

5 0
3 years ago
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Can anyone help me? I am stuck on this question! it would mean the world if u helped me! <3
Oksana_A [137]

Answer:

I think the answer is 12

Step-by-step explanation:

5 0
3 years ago
Suppose a sample is taken from a population whose mean value is 51, as the sample size increase which value will the mean approa
Agata [3.3K]

Answer:

51

Step-by-step explanation:

Given

\mu = 51

Required

Where will the mean approach if sample size increase

Using central limit theorem, we have:

n \to \infty

\mu \to \mu

This means that; as n approaches infinity, the mean is almost expected to the \mu i.e. expected to remain unchanged.

Hence, the mean value will approach 51.

7 0
3 years ago
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