Answer:
30 with extra
Step-by-step explanation:
It would be 29 and a little more but she would need 30 and have leftovers.
Answer:
33
Step-by-step explanation:
each upper cell is the sum of the two cells under it. For example 4 and 5 make 9 so 16+17=33
We know that
applying the law of cosines
c²=a²+b²-2*a*b*cos C
in this problem
a=10 m
b=11 m
c=13 m
C=?
c²=a²+b²-2*a*b*cos C----> cos C=[a²+b²-c²]/[2*a*b]
cos C=[10²+11²-13²]/[2*10*11]----> cos C=0.2364
C=arc cos (0.2364)----> C=76.33°
the answer is
76.3°
Answer:
Measure of angle 4 is 115°
Step-by-step explanation:
First, we want to find the measure of angle 2, because the measure of angle 2 is equal to angle 4. When 2 straight lines cross each other, the angles formed are always equal to the angle right across from it.
Find angle 2 by setting up an equation:
This is basically saying that angle 1 plus angle 2 equals 180°. In a half turnaround, the angle is 180°. Angle 1 and 2 make up a half turnaround.
Solve the equation:
Combine the 2 x's to get 2x.
Subtract 50 from both sides.
Divide both sides by 2.
Since x=65, plug 65 into x in the measure of angle 2 (x+50).
65+50=115.
Since Angle 2 is equal to angle 4, angle 4 is also 115.
rounding off of 123.5201 is 123.5
rounding off of 424.9832 is 425
rounding off of 675.0608 is 675.1
rounding off of 1247.0057 is 1247
rounding off of 5653.5974 is 5653.6
here we have rounded off to first decimal place
one point to note that we can just approximate to get the rounded off value. We have to follow several rules, like we should increase the last digit to be retained by one when the digit following it is greater than 5 and we should not
change the last digit if the digit following the last digit to be retained is less than five
