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gregori [183]
2 years ago
5

The perimeter of the surface

Mathematics
2 answers:
svlad2 [7]2 years ago
6 0

Answer:

10 inches by 8 inches


The length and with would be half the perimeter: 36/2 = 18


find 2 numbers when added together equal 18 and when multiplied together equal 80.

8 + 10 = 18

8 x 10 = 80

OLEGan [10]2 years ago
3 0
10 inches by 8 inches

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a. In order for ΔABC to be similar to ΔDEF, what must be true about the angles? Be specific. b. If you know that ΔABC is similar
igomit [66]
I) if the triangles are similar then the corresponding angles are congruent. this means that the angles are of the same size.

ii)  If ΔABC is similar to ΔDEF, therefore; m∠A = m∠D, m∠B=m∠E, and m∠C=m∠F,
thus, if m∠A= 52, m∠D=52, and if m∠E=65, then m∠B=65, thus to get m∠C; 
180- (52+65)
=  63 , therefore; m∠C= 63

iii) if two figures are similar they have the same shape and not necessarily the same size while if two figures are congruent then they have the same shape and size
5 0
3 years ago
If y = x2 + 2x , find the value of y when x = 5
Arturiano [62]

Answer:

Step-by-step explanation:

Okay so you are gonna substitute x for 5 so the equations will look like y= (5)2+(5)2

So 10+10 = 20

So y=20

8 0
3 years ago
Evaluate (1/3)(m) - 1 - (1/2)(n) m=21 and n=12
Aneli [31]

Answer:

the answer is 0

Step-by-step explanation:

(1/3)(21)-1-(1/2)(12)

The first thing you do is that you multiply 1/3 times 21/1 which equal 7 then you  multiply 1/2 times 12/1 which that equal 6 then you solve 7-1-6 and you get 6-6 which equal 0 i hope this help you and i hope you have a goood day.

8 0
3 years ago
Add. write your answer as a mixed number in simplest form. 5 1/2+6 7/9
LiRa [457]
The answer is 12 5/18 hope it helps
7 0
4 years ago
12 + 5x &gt; 2 ( 8x - 6 ) - 7x<br><br>x &gt; what number?
Aloiza [94]
12 + 5x > 2(8x - 6) - 7x

12 + 5x > 16x - 12 - 7x

5x - 16x + 7x > -12 - 12

-4x > -24 / : (-4)

x < 6

3 0
3 years ago
Read 2 more answers
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