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trapecia [35]
3 years ago
7

What's x if 3x = 84?

Mathematics
1 answer:
Ket [755]3 years ago
7 0

Answer:

answer is 28

Step-by-step explanation:

3x=84

x=84/3= 28

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What is the common difference of an arithmetic sequence defined by the formula an=2n−4?
Ainat [17]

Answer:

d = 2

Step-by-step explanation:

Generate the first few terms

a₁ = (2 × 1) - 4 = 2 - 4 = -2

a₂ = (2 × 2) - 4 = 4 - 4 = 0

a₃ = (2 × 3) - 4 = 6 - 4 = 2

a₄ = (2 × 4) - 4 = 8 - 4 = 4

d = 0 - (- 2) = 2 - 0 = 4 - 2 = 2

5 0
3 years ago
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please answer please!!!! Will mark brainliest for complete answer. -the first photo is to calculate the area. Just question numb
cricket20 [7]
Triangle:
Area = 1/2*b*h
= (1/2)*3*4
= 3*2
= 6 m^2


7a.
1cm^3
Or, 1cm * 1cm * 1cm
Or, 10mm * 10 mm * 10 mm
Or, 1000 mm^3

7b.i)
10 cm^3
Or, 10cm * 1cm* 1cm
Or, 100mm * 10mm * 10mm
Or, 10000 mm^3

8.)
Volume = 50 cm^3
Base area= 5 cm^2
Now,
Volume = area * height
Or, 50 = 5 * height
Or, height = 50/5
Or, height = 10 cm

Plz mark this as the brainiest. :)
5 0
3 years ago
,,,,,,,,,,,,,,,,,i want the answer
marysya [2.9K]

Answer:

120 Degrees

Step-by-step explanation:

As the set up says the two angles (m<A and m<C) are the same so you would simply just divide 240 by 2 (240/2) to find your answer of 120.

3 0
3 years ago
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I need help finding the domain and range, I already know is not a function​
FromTheMoon [43]

Answer:

Domain: [-4, 4]

Range: [-3, 5]

Function? No

Step-by-step explanation:

Domain is all x-values that can be inputted in the graph that returns an output.

Range is all y-values that are outputted when <em>x</em> is inputted.

A function has to pass the Vertical Line Test.

6 0
3 years ago
Solve for x: 4x^2 + 2(2x + 2)^2 = 100
balu736 [363]
Would it be 4(1)^2+2(2(1)+2)^2=100
8 0
3 years ago
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