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Natasha2012 [34]
2 years ago
12

Question

Mathematics
1 answer:
allsm [11]2 years ago
4 0

Answer:

448

Step-by-step explanation:

[(8x8)4]+[(8x10)2]

448

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A car travels 32 km due north and
musickatia [10]

Answer:

Ifa,bandcare the

sides opposite to anglesA,B,&C.

By Cosine Rule,

b  

2

=32  

2

+46  

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−(2×32×46cos140°)

b  

2

=1024+2116−2944cos140°

b  

2

=3140−2944cos140°

b  

2

=3140+2255.234841

b  

2

=5395.234841

b=73.45

By Sine Rule,

sinC

32

​

=  

sin140°

73.45

​

 

sinC=  

73.45

32sin140°

​

 

sinC=0.2800

C=16.26°

The direction of the resultant

vector is measured from0°east

to the resultant, this angle isθ−90°,

90°is the total angle in

the first quadrant.

∴θ−90°=C+ϕ

ϕ=50°{Alternate angles are equal}

∴The direction of the car’s

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Step-by-step explanation:

5 0
3 years ago
What is the answer to -19+12
galina1969 [7]
Hi. 

-19 + 12 is the same as saying 12 - 19

So, -19 + 12 = -7

You're welcome. 
6 0
3 years ago
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The library is 4 miles from the post office. How many yards is the library from the post office? The library is yards from the p
weqwewe [10]

Answer:

7040 yards

Step-by-step explanation:

Because 1 mile = 1760 yards.  So 4 x 1760 = 7040.

8 0
2 years ago
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The sum of two numbers is 43. The larger number is 21 more than the smaller number. What are the numbers?
german

Answer:

The numbers are 11 and 32.  Add to get a sum of 43, and subtract to get a difference of 21.  

Step-by-step explanation:

5 0
2 years ago
MATH HELP ASAP! PLEASE HELP! 20 POINTS!!
Aloiza [94]

The mean decreases, think about it, if every single value in a data set was decreased by the same number, the average would also go down by the same number

The median would also go down, because the value in the middle of the data set would now be smaller than before

The mode would also decrease, because the value that showed up the most in the data set has now also been decreased

The range, however, stays the same. If the lowest value in a data set was 3 and the highest was 10 and you subtracted 2 from each value in the data set, you would have the lowest at 1 and the highest at 8. But, 10-3 still equals 8-1, so the range is unchanged

8 0
2 years ago
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