Answer:
1. x+4, x+3, x+1 - all 3 sides
x+4 + x+3 + x+1 = 17
3x + 8 = 17
3x = 17 - 8
3x = 9
x = 3
Side BC = x + 3 = 3 + 3 = 6 in
Side CD = x + 4 = 3 + 4 = 7 in
Side AB = x + 1 = 3 + 1 = 4 in
2. Side BS = x, side SY = 4 + x,side BY=x+2
BS + SY + BY = 21ft
x + 4 + x + x + 2 = 21
3x +6 = 21
3x = 21- 6
3x = 15
x = 5
Side bs = 5ft
Side sy = 9ft
Side by = 7ft
3. x +5+x - 1 + x +8 = 36 yd
3x + 12 = 36 yd
3x = 36-12
3x = 24yd
x = 8 yd
PQ = 16yd
Qr = 7 yd
Pr = 13 yd
4. This also should be done in the same method as above
I hope I helped u
6 with 2 refills seems like a better buy to me
Inequalities are just like equations it's just that the sign flips anytime you multipliy or divide by a negative number
1.
First Add 7 to both sides
2.
First Subtract 12 From Both Sides
Answer:
Country A = 85, Country B = 29, Country C = 20
Step-by-step explanation:
A+B+C=134 ----- eq(1)
B=C+9 ------------ eq(2)
A=36+B+C ------ eq(3)
By substituting eq(2) in eq(3), we get:
A=36+C+9+C
A=2C+45 ------- eq(4)
Now substituting eq(2) & eq(4) in eq(1), we get
2C+45+C+9+C=134
4C+54=134
4C=134-54
4C=80
C=20
Now putting the value of C in eq(2),
B=20+9
B=29
Substituting the value of B & C in eq(1), we get:
A+29+20=134
A+49=134
A=134-49
A=85
Answer:
H0: σ1=σ2
Ha : σ1 >σ2
B. Upper H 0H0:
sigma Subscript 1 Superscript 2σ21equals=sigma Subscript 2 Superscript 2σ22
Upper H 1H1:
sigma Subscript 1 Superscript 2σ21greater than>sigma Subscript 2 Superscript 2σ22
Step-by-step explanation:
The claim is that the treatment group has errors that <em><u>vary significantly</u></em> more than the errors of the placebo group.
The claim is the alternative hypothesis and the opposite of claim is the null hypothesis.
Vary significantly means that it is greater than so we choose the alternate hypothesis of greater than and the null hypothesis will be equal to errors of the placebo group.
So the correct choice is B.
B. Upper H 0H0:
sigma Subscript 1 Superscript 2σ21equals=sigma Subscript 2 Superscript 2σ22
Upper H 1H1:
sigma Subscript 1 Superscript 2σ21greater than>sigma Subscript 2 Superscript 2σ22
Choice A,C and D all are incorrect.
This can be written as
H0: σ1=σ2
Ha : σ1 >σ2
