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jeka57 [31]
2 years ago
5

Extra points help me please

Mathematics
2 answers:
MA_775_DIABLO [31]2 years ago
6 0
The answer I B. Theres many videos about this online-
podryga [215]2 years ago
5 0

Answer:

b

Step-by-step explanation:

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I need help with math!!! time is running out!!! will mark brainliest!!!
faust18 [17]
1.

Answer C.

2.

Answers B. and C.

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Answer B.

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Answer A.

5.

Answer A.
4 0
3 years ago
A square pyramid has a base with an area of 20 square meters, and its lateral faces have a slant height of x meters. Sydney is c
svetoff [14.1K]
1. Consider the pyramid ABCDE in the figure 1 attached:

Each side of the square base equals \sqrt{20} = \sqrt{4*5} = \sqrt{4}* \sqrt{5}=2 \sqrt{5} (units)

Area of 1 lateral side of pyramid ABCDE is \frac{1}{2}* 2 \sqrt{5}*x=\sqrt{5}x

so the total lateral area is 4\sqrt{5}x (units squared)

and the total surface area is 20+4\sqrt{5}x (units squared)

2. Now consider the second figure KLMNP, Sydney's pyramid:

The lateral area is 4* \frac{1}{2}* 4 \sqrt{5} *2x=16 \sqrt{5}x

so the total area of the second pyramid is 20+16 \sqrt{5}x

So 2 things can be said about the areas:

i) the lateral area of Sydney's pyramid is \frac{16 \sqrt{5}x}{4\sqrt{5}x} =4 times larger than the lateral area of the original pyramid.

ii) The total area of Sydney's pyramid is (20+16 \sqrt{5}x)-(20+4\sqrt{5}x)=12\sqrt{5}x units squared larger than the total area of the original pyramid.

5 0
3 years ago
Read 2 more answers
Translate into an inequality.
Viktor [21]

Answer:

<h2>-9 ≥ (2/5x) + 7</h2>

Step-by-step explanation:

the sign must have a line underneath itself to show that it can be equal and unequal. 2/5 times a number (from my understanding) is 2/5 times a variable, plus 7.

6 0
2 years ago
What is the volume of the prism?
Alex73 [517]

Other guy is wrong the value of 17 does not matter in this question. 17 is the hypotenuse of the base triangles.


V = 1/2*a*c*h

V=1/2*15*15*8

V=225*4

V=900

4 0
3 years ago
Read 2 more answers
HELP ME PLEASE &lt;333
aleksandrvk [35]

Answer:

i dont know ..i dont know ..Step-by-step explanation:

5 0
3 years ago
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