So your total is $6584
tution costs $704 more than room and board
you know nothing about how much the room and board cost so thats your "naked variable" so chose a variable to go in place of that. im going to coose r.
tuition($704 more than room and board): r +704
room and board(you know nothing about it): r
so add it all together you get r+704+r=your total.
sole the equation
2r +704= 6584
-704 on both sides
you get 5880 so it would come to 2r= 5880
divide by 2 on both sides
so r= 2940
r is the room and board so put 2940 in place of r in the equation you get from your variables which are r and r+704
so the final equation is 2940 +704 and your final answer is 3644
Answer:
Step-by-step explanation:
we know that
The area of the shaded region is equal to the area of the sector minus the area of the triangle
step 1
Find the area of the circle
the area of the circle is equal to
we have
substitute
step 2
Find the area of the sector
we know that
The area of the circle subtends a central angle of 360 degrees
so
by proportion find out the area of a sector by a central angle of 72 degrees
step 3
Find the area of triangle
The area of the triangle is equal to
step 4
Find the area of the shaded region
Subtract the area of the triangle from the area of the sector
Answer:
H0: σ² = 0.0016 against the claim
H1: σ² ≠ 0.0016
Step-by-step explanation:
The claim is the alternative hypothesis . If we have the alternative hypothesis that variance is not equal to 0.0016. Then the null hypothesis would
H0: σ² = 0.0016 against the claim
H1: σ²≠ 0.0016
This is a two tailed test.
The null hypothesis is opposite to the claim stated. The claim is the alternative hypothesis.
By knowing the alternative hypothesis one can find the null hypothesis.
The claim is that the variance of the number of accidents per day is no longer equal to 0.0016.
The claim is H1: variance≠ 0.0016 or
H1= σ²≠ 0.0016
Therefore the null hypothesis is
H0: σ²=0.0016
34.4 / 4 = 8.6
The value 214.01 is greater.
2.5 x 10^3 = 2,500
1 M = 100 CM
2 M = 200 CM
3 M = 300 CM
4 M = 400 CM
5 M = 500 CM
6 M = 600 CM
7 M = 700 CM
If you want detailed explanations after you get done with your classes ill be glad to explain. Happy studying!
Answer:
X1=-4+4i
X2=-4-4i
Step-by-step explanation:
X^2+8x+32=0
Δ=b^2-4ac=8^2-4(32)=-64<0
X1=(-b-i√Δ) /2a=(-8-8i)/2=-4-4i
X2=(-b+i√Δ) /2a=(-8+8i)/2=-4+4i