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Ivenika [448]
3 years ago
5

The following represents a tetrahedron.

Mathematics
1 answer:
aivan3 [116]3 years ago
8 0

Answer:

It's the second and third one!!

Step-by-step explanation:

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What is the ratio of 120%
Helga [31]

Answer:

5: 6

Step-by-step explanation:

becuase it was basically 100:120 but divide it by 20 and thats  how you get 5;6

7 0
3 years ago
In 1 and 2, use the table below that shows information about squares.
frutty [35]

1. The table has a constant of proportionality of 4, therefore, the perimeter and side length of squares are proportional.

2. Equation for the proportion is, y = 4x.

Perimeter = 48 cm.

<h3>What is the Equation of a Proportional Relationship?</h3>

The equation that defines a proportional relationship is, y = kx, where k is the constant of proportionality between variables x and y.

1. For the table given:

y = perimeter

x = side length

k = constant of proportionality = 8/2 = 16/4 = 24/6 = 4.

Since k is the same all through, the equation can be modelled as y = 4x, which means the perimeter and side length of squares are proportional.

2. Using the equation, y = 4x,the perimeter (y) of a square when its side length is 12 (x) is:

y = 4(12)

y = 48 cm.

The perimeter (y) of the square is: 48 cm.

Learn more about proportional relationship on:

brainly.com/question/15618632

#SPJ1

3 0
2 years ago
Simplify negative 7 and 1 over 8 − negative 9 and 1 over 2.
bulgar [2K]

Answer:

answer is D : 2 3/8

Step-by-step explanation:

5 0
3 years ago
Simplify: 21j-26+4j=21+6-2j
Molodets [167]
1. 21j-26+4j=21+6-2j
2. 25j-26=27-2j
3. 27j=53
4. j=53/27
hope this helps!!
3 0
3 years ago
Find the value of this experssion x = -9<br><br> x - 3 x + 5?
aalyn [17]
If you are imposing the x=-9 then, the problem would be set up like this:
=-9-3(-9)+5
=-9-(-27)+5
=18+5
=23
8 0
3 years ago
Read 2 more answers
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