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Dovator [93]
3 years ago
15

Please hurry. Have to submit this soon.

Mathematics
1 answer:
AlekseyPX3 years ago
8 0
In 1 hour, Antoine travels 1.75 mi by dividing 5.25 by 3. So, after lunch, he hiked 4 hours. 1.75 times 2 is 3.5 mi every hour after lunch. So, 3.5 times 4 is 14 mi. + 5.25 is 19.25 mi., or 19 1/4 miles.
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How do I make 9.076 turn into expandedform
Contact [7]

Answer:

9 + 0.0 + 0.07 + 0.006

Step-by-step explanation:

9 + 0.0 + 0.07 + 0.006

4 0
3 years ago
Below are tabulated a number of Rockwell G hardness values that were measured on a single steel specimen. Compute
Mashcka [7]

Answer:

a) 48.408

b) 1.235

Step-by-step explanation:

a)

The average hardness value xbar can be computed as

xbar=sum of values/number of values

xbar=(46.5+46.9+49.4+50.3+49.8+48.8+47+47.7+48.3+49.4+47.8+49)/12

xbar=580.9/12

xbar=48.408 (rounded to 3 decimal places).

The average hardness value is 48.408.

b)

The standard deviation hardness value s can be computed as

s=\sqrt{\frac{sum(x-xbar)^2}{n-1} }

x              x-xbar  (x-xbar) ²

46.5  -1.90833 3.64174

46.9  -1.50833 2.27507

49.4    0.99167 0.98340

50.3     1.89167 3.57840

49.8     1.39167 1.93674

48.8    0.39167 0.15340

47.0           -1.40833 1.98340

47.7   -0.70833 0.50174

48.3           -0.10833 0.01174

49.4    0.99167  0.98340

47.8           -0.60833 0.37007

49.0    0.59167 0.35007

Total                               16.7692

s=\sqrt{\frac{16.7692}{12-1} }

s=\sqrt{\frac{16.7692}{11} }

s=\sqrt{1.5245}

s=1.2347

s=1.235 (rounded to 3 decimal places)

The standard deviation hardness value is 1.235.

4 0
3 years ago
How do you Calculate the volume of each cylinder
DiKsa [7]

Volume= π·R²·H

π is Pi, approximately 3.142

R is the radius of the circular end of the cylinder

H is height of the cylinder

8 0
3 years ago
Read 2 more answers
Triangle DEF has sides of length x, x+3, and x−1. What are all the possible types of DEF?
Natalija [7]

Triangle DEF is scalene

Must click thanks and mark brainliest

6 0
3 years ago
A square centimeter is the area covered by a square whose sides are 1 meter long.
eduard
The correct answer is:  [B]:  "False" .
____________________________________________
  <u>Note</u>:  A "square centimeter" is the area covered by a square whose sides are:
       "1 centimeter" long.
____________________________________________
  <u>Note</u>:  A "square meter" is the area covered by a square whose sides are:
       "1 meter" long.
____________________________________________
3 0
3 years ago
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