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AysviL [449]
3 years ago
8

A room is 12cm long, 7cm wide and4cm high find the area the ceiling​

Mathematics
2 answers:
laiz [17]3 years ago
8 0

Answer:

84 cm.

Step by Step Explanation:

length= 12 cm

breadth= 7 cm

Height= 4 cm

Area= L×B

= (12×7) cm

= 84 cm^2

aksik [14]3 years ago
5 0
Hey there!
I think that it safe to say that this room is a rectangular prism. Therefore, the top and bottom (floor and ceiling) have the same area. We see that our floor dimensions are 12 cm long and 7 cm wide. This also applies to the ceiling. Let’s take our two sides and multiply then to find our area.

12(7)=84

Therefore, the area is 84 square centimeters.

I hope that this helps!
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Question 12 pts
AlexFokin [52]

The correct option about the proof is C. Both Amanda and Stephen are correct.

<h3>How to illustrate the information?</h3>

It should be noted that both Amanda and Stephan are correct as they are taking two different pairs of supplementary angles.

Amanda's proof is that he takes (∠1 and ∠4) and (∠3 and ∠4)as the supplementary angles and writes ∠1 + ∠4 = 180° and ∠3 + ∠4 = 180°,

Stephan's proof is that he takes (∠1 and ∠2) and (∠3 and ∠4) as the <em>supplementary</em> angle pair.

Therefore, the correct option is C.

Learn more about proof on:

brainly.com/question/1788884

#SPJ1

4 0
1 year ago
Solve question 5 all steps
valkas [14]

Answer:

Answer in the pic with steps

Hope it helps

6 0
3 years ago
You will be administratively suspended if you have a breath or blood alcohol level of ____ or above or refuse to submit to a che
raketka [301]

Answer: Our required answer is 0.08%.

Step-by-step explanation:

According to U.S., if anyone has consumed 0.08 % or above , then he will considered as legally impaired, and he would be administratively suspended.

If he has a breath or blood alcohol level of 0.08% or above or refuse to submit to a chemical test.

In U.S. it must be less than 0.08% in blood alcohol concentration.

Hence, our required answer is 0.08%.


4 0
3 years ago
Read 2 more answers
crows are migrating and travel 35 km on a bearing of 047°. Then then fly 15 km of a bearing of 105°. How far , and on wha…
padilas [110]

Answer:

American Crows can be considered partially migratory. That is, some populations migrate, others are resident, and in others only some of the crows migrate. Crows in the southern parts of their range appear to be resident and not migrate. They may make some changes in their use of space at this time, spending more time off the territory to forage and roost. Crows migrate out of the northern most parts of their range. It has been stated that crows migrate out of those areas where the minimum January temperature averages 0 ° F. Certainly crows leave the northern Great Plains in the fall, leaving Saskatchewan and Alberta to winter in the lower Plains states of Nebraska, Kansas, and Oklahoma (Kalmbach, E. R., and S. E. Aldous. 1940. Winter banding of Oklahoma crows. Wilson Bull. 52: 198-206). Crows can be seen crossing the Great Lakes in spring and fall, and these birds undoubtedly are migrating to and from parts of Canada.

Step-by-step explanation:

because  They may make some changes in their use of space at this time, spending more time off the territory to forage and roost. Crows migrate out of the northern most parts of their range. It has been stated that crows migrate out of those areas where the minimum January temperature averages 0 ° F.

3 0
3 years ago
Hello,
Nookie1986 [14]

Answer:

s = height above ground

s = 60 + 20 t - 4.9 t^2 (standard physics equation on earth)

at t = 0

s = 60 (clearly :)

now when does it hit the bleak earth?

That is when s = 0

4.9 t^2 - 20 t -60 = 0

solve quadratic and use the positive t (the negative t was back before you threw it if you had thrown it from the ground)

t = 6.09 or - 2.01

use t = 6.09

now to do the last part there are two obvious ways to get t at the peak

1. look for vertex of parabola

2. look for halfway between t = -2.01 and t = 6.09

I will do it the hard (11) waay by completing the square

4.9 t^2 - 20 t = -(s-60)

t^2 - 4.08 t = -.204 s + 12.2

t^2 - 4.08 t +2.04^2 = -.204 s +12.2 + 4.16

(t-2.04)^2 = -.204(s-80.2)

so

top at 80.2 meters at t = 2.04 s

===============

quick check on time

should be average of 6.09 and -2.01

=4.08 /2 = 2.04 check

7 0
2 years ago
Read 2 more answers
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