3 years ago

The ratio of Ali's mass to John's mass is 6:5. The ratio of John's muss

Mathematics

1 answer:

djverab [1.8K]3 years ago

5 0

Step-by-step explanation:

The ratio of Ali mass to Williams mass is

6 : 3

= 2 : 1

Option 2 is the correct answer

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What two numbers add up to 6 and multiply to 12?

GuDViN [60]

Erm

x+y=6
xy=12

x+y=6
y=6-x
sub back

xy=12
x(6-x)=12
6x-x^2=12
x^2-6x=-12
x^2-6x+12=0
quadratic formula
for
ax²+bx+c=0
$x= \frac{-b+/- \sqrt{b^2-4ac} }{2a}$

for
x²-6x+12=0
a=1
b=-6
c=12
and remember that √-1=i

$x= \frac{-(-6)+/- \sqrt{(-6)^2-4(1)(12)} }{2(1)}$
$x= \frac{6+/- \sqrt{36-48} }{2}$
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$x= \frac{6+/- (\sqrt{-1})(\sqrt{12}) }{2}$
$x= \frac{6+/- (i)(2\sqrt{3}) }{2}$
$x= \frac{6+/- 2i\sqrt{3} }{2}$
x=3+/-i√3

the numbers are 3+i√3 and 3-i√3
no real numbers tho

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3 years ago

MOVIES At a movie theater, ten movies are playing and their lengths are 105, 95,

kipiarov [429]

Answer: The nearest tenth would be 150.

Step-by-step explanation:

To round a number to the nearest tenth , look at the next place value to the right (the hundredths).

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3 years ago

Find the area of the shape shown below

ra1l [238]

Answer:

18 MARK AS BRAINLIEST OR ELSE!!!!

Step-by-step explanation:

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area = 1/2x3(3+9)

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area = 18

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Vlada [557]

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3 years ago

Read 2 more answers

Look at the attached questions please :)

elixir [45]

9 + (-5) = 4

-8 - 4 = -12

8 - (-4) = 12

-9 + 5 = -4

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3 years ago