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Ghella [55]
3 years ago
13

What is the value of x?​

Mathematics
1 answer:
goblinko [34]3 years ago
6 0

Answer:

3+3+x=30

x=30-9

21 is the answer

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Solve 2x + 8 < 10 or 2x + 8 > 20.
jasenka [17]

Answer:

x=1 or x=9

Step-by-step explanation:

make x the subject of the formula by correcting the right terms and then divid both sides by 2

4 0
2 years ago
Complete the coordinate proof of the theorem.
mojhsa [17]
C(a,b), because the x-coordinate( first coordinate) is a (seeing as it is situated directly above point B, which also has an x-coordinate of a) and the y-coordinate ( second coordinate) is b (seeing as it is situated on the same horizontal level as point D, which also has a y-coordinate of b)

the length of AC can be calculated with the theorem of Pythagoras:

length AB = a - 0 = a
length BC = b - 0 = b

seeing as the length of AC is the longest, it can be calculated by the following formula:

It is called "Pythagoras' Theorem" and can be written in one short equation:

a^2 + b^2 = c^2 (^ means to the power of by the way)

in this case, A and B are lengths AB and BC, so lenght AC can be calculated as the following:

a^2 + b^2 = (length AC)^2
length AC = √(a^2 + b^2)

Extra information: Seeing as the shape of the drawn lines is a rectangle, lines AC and BD have to be the same length, so BD is also √(a^2 + b^2). But that is also stated in the assignment!


3 0
3 years ago
Read 2 more answers
What is two the two <br><br><br><br> this is Free poin ]t because I'm nice
satela [25.4K]

Two the two is the four.

4 0
2 years ago
Need help asapdue today at 11 am
goblinko [34]

12 ×  8 = 96        3 × 3 = 9     96 - 9 = 87

(unlucky jasmine she does not have enough paint )

8 0
3 years ago
BRAINLIEST + 7 POINTS TO FIRST CORRECT ANSWER
timama [110]

Answer:

it has 11 faces 10 sides for the decagon + 1 for the base

It does have one face that is a decagon, which is the base, the rest are triangles

it has 20 edges

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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