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umka21 [38]
2 years ago
13

How to solve this equations

Mathematics
1 answer:
Paha777 [63]2 years ago
6 0
I do not know   jhjgjhgmfkjcvhjvciufhkjhjkbhfbhjfhb

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Will give crown thingy if right Can you find the area and circumference of a circle given the radius or diameter?
Artist 52 [7]

Answer:

Therefore it is possible to find the circumference and area of a circle if we are given the radius or diameter of the circle.

Step-by-step explanation:

i) to find the area of a circle or circumference the radius , r, is required.

ii) if we are given the diameter, d. then we have to find the radius, r, by dividing the diameter by 2, that is d  = \frac{r}{2}.

iii) area of the circle is given by A = \pi r^{2}

iv) circumference of the circle is given by C = 2\pi r

Therefore it is possible to find the circumference and area of a circle if we are given the radius or diameter of the circle.

7 0
2 years ago
PLEASE HELP! due tmr! <br><br> 24<br> 26<br> 55<br> 99
SVETLANKA909090 [29]

Answer:

99°

Step-by-step explanation:

Internal Angles of triangles ALWAYS add up to 180°

So, 180° is our total.

We can form an equation. <em>x° + 55° + (4x - 5)° = 180</em>°

We can remove the brackets to form; <em>x° + 55° + 4x° - 5° = 180°</em>

We can get rid of the like terms by either <em>adding </em>or <em>subtracting </em>them.

<em>x° + 4x° + 55° - 5° = 180°</em>

<em>5x° + 50° = 180°</em>

We can then subtract 50° from both sides.

<em>5x° = 180° - 50°</em>

<em>5x° = 130°</em>

We then make x the subject and divide both sides by 5°

x = 26

x was our unknown so where there is x we put 26

The angle on the far left is simply 26°

The other angle, (4x-5)° becomes (4(26) - 5)°

If you simplify that, you get (104-5)°

Hence the last angle was 99°

If you want to ensure that your answer is correct, simply add the angles. They <u><em>should always</em></u> add up to 180° if you're working with a triangle

55° + 26° + 99° = 180°

7 0
2 years ago
Read 2 more answers
Simplify the expression by combining like terms<br>14g-6-13g-7​
frozen [14]

Answer:

g-13

Step-by-step explanation:

subtract 14g from 13 making it g and add 6+7

Hope this helps :P

7 0
3 years ago
Read 2 more answers
Please help very urgent on test...
stepladder [879]

Answer:

Equation: (2x+5)4=(2x+8)3

X: 2

Perimeter: 36

Step-by-step explanation:

You would multiply 2x+5 and 4 because there are four sides to a square, so the perimeter of the square would be 8x+20. This would go same for the triangle, making the perimeter 6x+24.

So 8x+20=6x+24 is your new equation. Then, you do the opposite of the order of operations, and add or subtract first. It would be easiest to subtract 20 and 6x from both sides.

That leaves you with 2x=4. Dividing 2 by both sides means x=2

You can plug this in to prove if it is correct.

16+20=36

12+24=36

Lmk if you get it!

8 0
3 years ago
Look at the triangle.
Gekata [30.6K]

Answer:

Ok, Sir, The answer is D.

Step-by-step explanation:

From the list of possible answers, the sides are 5 and 12 and the hypotenuse is 13, so sin(x) is either 5/13 or 12/13 depending on which of the two legs is opposite to angle x.

7 0
3 years ago
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