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svet-max [94.6K]
2 years ago
7

Don’t know how to solve these :l

Mathematics
2 answers:
kumpel [21]2 years ago
7 0

Answer:

452.16

Step-by-step explanation:

Comes down to knowing the Area of a Circle formula- A = πr².

A = area

r = radius, in your case, 12

A = π(12)² = 452.16cm²

xeze [42]2 years ago
3 0

Answer:

452.16 cm²

Step-by-step explanation:

3.14 × 12² = 452.16 cm²

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Find the value of x in the given figure using parallel lines
pantera1 [17]

Answer:

x = 18 degrees

Step-by-step explanation:

because lines n and m are parallel, 3x and 126 are same side interior angles. This means that when added up they equal 180, so make an equation as so:

3x + 126 = 180

Solve for it and x will equal 18.

6 0
3 years ago
Jeans are on sale for 20% off the regular price. Which function would give you the total cost for purchasing a pair of jeans tha
DaniilM [7]

Answer:

0.8X = Final cost

Step-by-step explanation:

Given that jeans are on sale for 20% off the regular price, to determine which function would give you the total cost for purchasing a pair of jeans that costs X dollars, the following calculation must be performed:

1X = Initial cost of the jeans

20% = 0.2

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0.8X = Final cost

3 0
3 years ago
Find the value of x.
allochka39001 [22]

In order to find the value of x, you have to cross multiply both equations. 4x-10 is basically 4 times something subtract 10. Same thing as well for 3x-2. Now it says to find the value of x. X has to also be the same answer for both equation as well. By the way x doesn't have a given number so there is no specific answer.

3 0
3 years ago
Find the perimeter and area of the polygon with the given vertices C (4,0) D (4,7) E (8,7) F(8,0)
Dafna11 [192]
The perimeter would be 7+7+4+4 or 14+8 which equals 22 and the area would be 7x4 which is 28
3 0
2 years ago
What did i do wrong?
irakobra [83]

Answer:

27x +42+ 3x²

Step-by-step explanation:

so im learning this rn in class and what you do is FOIL

So its stands for

First

Outside

Inside

Last

(3x+6)(x+7)

(3x+6)(x+7) -- 3x² (if you have x times x it is x to the second power)

(3x+6)(x+7) -- 21x

(3x+6)(x+7) -- 6x

(3x+6)(x+7) -- 42

Now add 21x and 6x

27x +42+ 3x²

you must have added the 21 and 6 incorrectly.

7 0
3 years ago
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