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3 years ago

Four billion eight hundred sixty-four million As a decimal

Mathematics

1 answer:

hammer [34]3 years ago

5 0

Answer:

4,864,000,000.00

Step-by-step explanation:

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Find the mean of the 32 numbers, such that if the mean of 10 of them is 15 and the mean of 20 of them is 11. The last two number

postnew [5]

Answer:

last two numbers are 10,so their mean is 10

adding all means give us the mean of total data

Step-by-step explanation:

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3 years ago

A sail in the form of a right triangle the angle at its lower edge is 55 what is the size of the angle formed at the top of the

Mars2501 [29]

Answer:

The size of the angle formed at the top of the sail is 35.

Step-by-step explanation:

We know that the sum of all angles inside a triangle must be 180. This is a rule.

So we know that a right triangle is called like that because one angle is a 90-degree angle.

Then we have that:

180 = right angle + lower edge angle + angle top of the sail

180 = 90 + 55 + angle top of the sail

Solving for 'angle top of the sail' we have:

angle top of the sail = 180 - 90 - 55 = 35

The size of the angle formed at the top of the sail is 35.

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3 years ago

A table showing Tickets Sold, Cost, and Total. The first row shows Child, with the entries, c, 3, and 3 c. The second row shows

lisabon 2012 [21]

Answer:

the answer is 139 - c

Step-by-step explanation:

I did it on edge

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3 years ago

Solve using Quadratic Formula <br>x^2 + 3x - 3 = 0

katrin [286]

Answer:

a= 1 , b= 3 , c= –3

$x = \frac{ - b \frac{ + }{} \sqrt{ {b}^{2} - 4ac} }{2a} \\ x = \frac{ - 3 \frac{ + }{} {} \sqrt{ {3}^{2} - 4(1)( - 3)} }{2(1)} \\ = \frac{ - 3 \frac{ + }{} \sqrt{9 + 12} }{2} = \frac{ - 3 \frac{ + }{} \sqrt{21} }{2} \\ \\ x = \frac{ - 3 \frac{ + }{} \sqrt{21} }{2} \\ \\ x = 0.79 \\ x = - 3.79$

I hope I helped you^_^

4 0

3 years ago

PLEASEE help me ! :(

Mashutka [201]

HELLO EVERYONE,

TO FIND Y:

We know

a straight line makes an angle of 180

so,

180 = 119-y

180-119 = y

therefore y is

y = 59 degrees

TO FIND X:

We know,

all angles of a quadrilateral make a sum of 360,

so,

A+B+C+D = 360

HERE,

A = 131

B = 56

C = Y = 59

D = X

131 +56+59+X = 360

360 - 246 = X

X = 114 Degrees

Please do mark me the branliest if it helpful for you. Thanks.

5 0

3 years ago