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Shalnov [3]
3 years ago
10

Gio is studying the rectangular pyramid below. A rectangular pyramid. The rectangular base has a length of 9.6 millimeters and w

idth of 4.2 millimeters. 2 triangular sides have a base of 9.6 millimeters and height of 4.8 millimeters. 2 triangular sides have a base of 4.2 millimeters and height of 6.5 millimeters. He believes the surface area, in square millimeters, can be found by simplifying this expression. (4.2) (9.6) + one-half (4.2) (6.5) + one-half (9.6) (4.8) What error is Gio making? He used the wrong values as the bases of the lateral faces. He used the wrong expression to represent the area of the base of the pyramid. He used two different values as the heights of the lateral faces. He used an expression for surface area that did not include all the faces.
Mathematics
2 answers:
ruslelena [56]3 years ago
6 0

Answer

D

Explanation:

I got it right on the test

hichkok12 [17]3 years ago
4 0

Answer:

<h3>D</h3>

Step-by-step explanation:

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Express this sum using summation notation 1+1/2+1/3+1/4+1/5+1/6
vesna_86 [32]

Answer:

21

Step-by-step explanation:

the sum of the express of the summation of the notation

4 0
3 years ago
Read 2 more answers
What are the possible lengths for x, the third side of a triangle, if two sides are 21 and 10
SashulF [63]
To solve we need to use Pythagoras theorem ( a^{2} +  b^{2} =  c^{2} )

There are 2 possible lengths for x: hypotenuse or one of the 2 shorter sides.

Hypotenuse:
10^{2} + 21^2 = x^{2}
100+441= x^{2}
\sqrt{541} =  \sqrt{ x^{2} }
23.3≈x

Shorter leg:
10^2 + x^2=21^2
x^2= 21^2-10^2
x^{2}= 441-100 
\sqrt{ x^{2} } = \sqrt{341}
x≈18.47
8 0
3 years ago
Factor 25x 2 + 10x + 1.
scoundrel [369]
25x^2+10x+1
(25x^2+5x)(+5x+1)
5x(5x+1) +1(5x+1)
(5x+1) (5x+1)
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3 0
4 years ago
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At an animal shelter there are 15dogs, 12 cats, 3 snakes and 5 parakeets . What percent of the number of cats is the number of d
madreJ [45]
Total number of animals at the shelter = 15 + 12 +3 + 5 = 35 animals.
Let the total number of animals be represented by 100%
There are 15 dogs and 12 cats so:
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% Number of cats  = 12/35 x 100%  =  34.28%

6 0
3 years ago
2 MATH K.
Ann [662]

Answer:

94

Step-by-step explanation:

Given the addition problem:

58 + 36

We can form a table :

5 _______ 8

+

3 _______ 6

9 4

Hence, (58 + 36) = 94

4 0
3 years ago
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