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2 years ago

PLZ HELP!!!What is 9 + 10?

Mathematics

2 answers:

vovangra [49]2 years ago

4 0

The answer is 19 lol

Kryger [21]2 years ago

4 0

Answer:

21.

Step-by-step explanation:

M a t h .

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Hello! Does anyone know how to do this I already tried some but I got them wrong. Giving brainliest!!

maks197457 [2]

Answer:

The only right angles are between the lines (O,F) and (Q,D)

Step-by-step explanation:

by examination. The tangental line goes through the same point the diameter line goes through so to be tangental it has to be 90 degrees on each side.

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1 year ago

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170 players 50% are boys. how many boys ?

FinnZ [79.3K]

50% means half so divide 170 by 2,
170/2=85
so there is 85 boys
Hope this helped!!

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2 years ago

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The length of the hypotenuse of a right angled triangle exceeds the length of the base by 2cm and exceeds twice the length of th

insens350 [35]

Answer: a = 8; b = 15; c = 17

Step-by-step explanation:

c = b + 2 and c = 2a + 1

b = c − 2 and a = $\frac{c-1}{2}$

c² = b² + a²

$c^{2} = (c-2)^{2} + \frac{c-1}{2}\\$

$c^{2}= \frac{4 (c-2)^{2}+(c - 1)^{2} }{4}$

$4c^{2}={4 (c^{2} + 4 -4c)+c ^{2} + 1-2c$

$4c^{2}={4 c^{2} + 16 -16c)+c ^{2} + 1-2c$

$c^{2}-18c+17=0$

$c(c -17)-1(c-17)=0$

$(c -1)(c-17)=0$

c = 1 or c = 17

If c = 1 then b = 1 - 2 = -1, that's not possible

So x = 17

b = 17 - 2 = 15

a = $\frac{17-1}{2} = 8$

Length sides of the triangle are 17 cm, 15 cm and 8 cm.

I saw some of this on a site but I want to make sure its correct so we're gonna apply the pythagorean theory and see if its correct.

$a^{2} + b^{2} = c^{2} \\8^{2} + 15^{2} = 17^{2} \\64 + 225 = 289\\289 = 289\\$

This shows that this is correct.

Hope this helped! Again, some of this was from a site, not from me.

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2 years ago

-(2x-3)+x=1/3(4x+5)-8

alexira [117]

I wrote my decision on a piece of paper.

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2 years ago

Translate the phrase to an algebraic expression.

mario62 [17]

Answer:

Step-by-step explanation:

If it’s 80 less than, your subtracting and then 4 times a number is 4x so your answer is 4x-80

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3 years ago

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