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ANTONII [103]
3 years ago
8

Find the total surface area of a sphere radius being 7cm

Mathematics
1 answer:
Lilit [14]3 years ago
6 0

Answer:

A≈615.75m²

Step-by-step explanation:

Solution

A=4πr2=4·π·72≈615.75216m²

Hope this helped!!!

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THE ART TEACHER HAS A BOX OF 473 markers.she wants to distribute them evenly among 11 tables.how many markers will she put on ea
kicyunya [14]
What you would do is just divide 473 by 11
and you shoukd get the art teacher will put 43 markers on each table
3 0
4 years ago
Which coordinate pairs make the equation x-9y=12 true?
asambeis [7]

Answer:

(12,0) and (3, -1) and (0,-4/3)

Step-by-step explanation:

To find if a point makes an equation true, just substitute its x and y values in in the equation and simplify.

1) Let's test the point (12,0). Substitute 12 for x and 0 for y in the equation:

x-9y=12\\(12)-9(0)=12\\12-0=12\\12=12

12 does equal 12, so (12,0) makes the equation true.

2) Let's test the point (0, 12). Substitute 0 for x and 12 for y in the equation:

x-9y=12\\(0)-9(12) = 12\\0-108 = 12\\-108 = 12

However, -108 does not equal 12, so (0,12) does not make the equation true.

3) Let's test the point (3, -1). Substitute 3 for x and -1 for y in the equation:

x-9y=12\\(3)-9(-1) = 12\\3 + 9 = 12\\12 = 12

12 does equal 12, so (3, -1) makes the equation true.

4) Let's test the point (0, -4/3). Substitute 0 for x and -4/3 for y in the equation:

(0) -9(-\frac{4}{3} ) = 12\\0 + \frac{36}{3} = 12\\0 + 12 = 12 \\12 = 12

12 does equal 12, so (0, -4/3) makes the equation true.

8 0
4 years ago
....................
baherus [9]

Answer:

11

Step-by-step explanation:

4 0
3 years ago
 student found the slope of a line that passes through the points (1, 14)and (3, 4) to be 5. What mistake did she make?
vladimir2022 [97]
Y2-y1/x2-x1
(1,14) & (3,4)
y2= 4
y1=14
x2=3
x1=1

So....

(4-14)/(3-1) = -10/2 = -5

The answer should be negative instead of positive, she probably subtracted 4 from 14 instead.
5 0
3 years ago
You must be at least 48 inches tall to ride a Magic Mountain roller coaster write a inequality I'll make you a brainlyist if you
VLD [36.1K]
X is greater than or equal to 48.
x>48 (x being your height, in inches)
3 0
3 years ago
Read 2 more answers
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