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antiseptic1488 [7]

3 years ago

15

Elliot got some new trading cards.He has 4 packs with 20 cards each. Another pack has only 8 cards which equation show a way to

find how much cards Elliot has in all?
A.c=(4×8)+20
B.c=4+20+8
C.c=(4×20)+8

2 answers:

svetlana [45]3 years ago

7 0

C.c=(4x20)+8 is the correct one

Pepsi [2]3 years ago

7 0

C.c=(4x8)+20 because the 4 and 20 are first in the sentence and the 8 is being added

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g100num [7]

This question may be trick question xD haha.

Anyways, a right triangle is a triangle with a right angle (90 degrees). In your picture, that triangle is a right triangle, but the sides could be a bit slanted. Please take a picture from top view, so I can see it properly.

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A paperweight is shaped like a triangular pyramid. The base is an equilateral triangle. Find the surface area of the paperweight

melomori [17]

Answer:

<h2>8.3 in²</h2>

Step-by-step explanation:

We have

three triangles with the base <em>b = 2 in.</em> and the height <em>h₁ = 2.2 in.</em>

one triangle with the base <em>b = 2 in. </em>and the height <em>h₂ = 1.7 in.</em>

The formula of an area of a triangle:

$A=\dfrac{b\cdot h}{2}$

<em>b</em><em> - base</em>

<em>h</em><em> - height</em>

Substitute:

$A_1=\dfrac{(2)(2.2)}{2}=\dfrac{4.4}{2}=2.2\ in^2$

$A_2=\dfrac{(2)(1.7)}{2}=1.7\ in^2$

$S.A.=3A_1+A_2$

$S.A.=3(2.2)+1.7=6.6+1.7=8.3\ in^2$

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dsp73

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