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german
3 years ago
10

Please please answer this correctly I have to finish the sums today

Mathematics
1 answer:
denis-greek [22]3 years ago
3 0
He must go north because even though he goes 5 miles west he makes up for that by driving back 5 miles East
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In a certain town, 22% of voters favor a given ballot measure. for groups of 21 voters, find the variance for the number who fav
Galina-37 [17]
<span>c. 4.6
       
21 X .22= 4.6
       
Calculating the variance requires finding the product of 21 and 22%. To make this easier we convert 22% into it's decimal form and construct the equation. To back check this answer we can use 10% of 21 voters which equals 2.1% then double that amount to reach 4.2%, knowing that we now have a close approximation of the variance we can eliminate answers a, b, and d, leaving c as the only logical choice.</span>
5 0
3 years ago
Determine the measure of x, to the nearest tenth of a degree.
Masteriza [31]

Answer:

About 73 degrees

Step-by-step explanation:

By the law of cosines:

26^2=11^2+27^2-2(11)(27)\cos(x) \\\\\\676=121+729-594\cos(x) \\\\\\-174=-594\cos(x) \\\\\\\cos(x)= 0.\overline{29} \\\\\\x\approx 73.0^{\circ}

Hope this helps!

4 0
3 years ago
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(3m^3- 1/2 y) (3m^w - 1/2y)<br> multiply
Westkost [7]

Answer:

This is just multiplying not simplify.

4 0
3 years ago
The Foster Family, and the Tyson family, and the O'Jennie family, got together for Thanksgiving, and had a large turkey that cou
sasho [114]

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5 0
2 years ago
The sum of three numbers is 51 . the second number is 2 times the third. the third number is 9 more than the first. what are the
hammer [34]
X+y+z=51

y=2z
z=9+x

subsitute those

x+2z+9+x=51
x+2(9+x)+9+x=51
x+18+2x+9+x=51
4x+27=51
minus 27 both sides
4x=24
divide by 4
x=6

sub back

z=9+x
z=9+6
z=15

y=2z
y=2(15)
y=30

the numbers are
6,30,15
8 0
3 years ago
Read 2 more answers
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