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2 years ago

Math questionsss please help, will reward you 5 stars. :)) <3 thanks you

Mathematics

1 answer:

d1i1m1o1n [39]2 years ago

7 0

the answer for one is C

the answers for 2 is the first choice, third choice and last choice

the answer for three is D

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Math help please I need it ASAP

statuscvo [17]

Answer:

x=10.5

Step-by-step explanation:

$\frac{x}{6} =\frac{7}{4} \\x=\frac{7}{4} \times 6\\=\frac{21}{2} \\=10.5$

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2 years ago

Solve this for Brainliest! See the attachment [Level - GCSE]

madreJ [45]

Answer:

$x = 3 + 4\sqrt{3}$

Step-by-step explanation:

OPQ is a right angle triangle.

Using Pythagoras

$x^{2} + (x+5)^{2} = (x+8)^{2}\\x^{2} + x^{2} + 10x +25 = x^{2} + 16x + 64\\x^{2} + x^{2} - x^{2} + 10x - 16x + 25 - 64 = 0\\x^{2} - 6x -39 = 0$

Using quadratic formula

$x = \frac{-b \± \sqrt{b^{2}-4ac}}{2a}\\x = \frac{-(-6) \± \sqrt{(-6)^{2}-4(1)(-39)}}{2(1)}\\x = \frac{6}{2} \± \frac{\sqrt{192}}{2}\\x = 3 \± \frac{8\sqrt{3}}{2}\\x = 3 \± 4\sqrt{3}$

$x = 3 + 4\sqrt{3} = 9.928(4s.f.)$

$x = 3 - 4\sqrt{3} = -3.928(4s.f.)$ (Length can't be negative)

∴ $x = 3 + 4\sqrt{3}$

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1 year ago

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3x+4y=-3 x+2y=-1 how to solve this problem

erma4kov [3.2K]

Answer:

x,y= -1,0

Step-by-step explanation:

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2 years ago

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gayaneshka [121]

i need the ancwer options and the linea

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lisabon 2012 [21]

The answer is 36in because that’s the pathagreom you need to use to find the answer

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