Answer:
bro are u serious I am done with this maths and asking me
<span><span>(<span>1−<span>7n</span></span>)</span><span>(5)
</span></span><span>=<span><span>(<span>1+<span>−<span>7n</span></span></span>)</span><span>(5)
</span></span></span><span>=<span><span><span>(1)</span><span>(5)</span></span>+<span><span>(<span>−<span>7n</span></span>)</span><span>(5)
</span></span></span></span><span>=<span>5−<span>35n
</span></span></span><span>=<span><span>−<span>35n</span></span>+<span>5</span></span></span>
In my opinion I would use the mean. But the options that are given I would choose answer A. But I'm not 100% sure.
Because of the vertical angles theorem, BAC becomes 50°. And angle B is 180-(50+30)=100.
If all 3 triangles are similar, the angles of triangle EFG are 30°, 50°, 100°
Answer:
Length = 7 feet, and width is 3 feet.
Step-by-step explanation:
For the given rectangular door,
area = length x width
21 = length x width ................. 1
Also,
perimeter = 2 ( length + width)
20 = 2 ( length + width)
10 = length + width ............ 1
Given that the factors of 21 are required to get the are of the door.
Then, from equation 1;
21 = 7 x 3
And from equation 2;
10 = 7 + 3
So that, the length of the door is 7 feet and its width is 3 feet.