Answer:
Mean=-21.5
Median=-26.5
Mode=-28
Range= -6 to-46
Step-by-step explanation:
Arranging the numbers given either in ascending or descending order. In this case, I used descending order as follows
-6
-11
-17
-25
-28
-28
-39
-46
Mode is the number that occurs more than others. In this case, only -28 appears twice hence it is the mode
The mean is given by adding all the numbers and dividing by the frequency.
The sum of numbers will be -6+-11+-17+-25+-28+-28+-39+-46=-172
Mean=-172/8=-21.5
The median is the number that appears in the middle after arranging the numbers in descending order as above. In this case, two numbers appear in the middle, that is -25 and -28 hence median -25+-28/2=-26.5
The range of numbers id from -6 to-46 as arranged above
Answer:
r = 24
Step-by-step explanation:
3(r+2)+5(2−r)=−32
Step 1: Simplify both sides of the equation.
3(r+2)+5(2−r)=−32
(3)(r)+(3)(2)+(5)(2)+(5)(−r)=−32(Distribute)
3r+6+10+−5r=−32
(3r+−5r)+(6+10)=−32(Combine Like Terms)
−2r+16=−32
−2r+16=−32
Step 2: Subtract 16 from both sides.
−2r+16−16=−32−16
−2r=−48
Step 3: Divide both sides by -2.
−2r/-2 = -48/-2
r = 24
Answer:
19.5
Step-by-step explanation:
Circumference is radius multiplied by 2, then multiplied by pi.
3.1 × 2= 6.2
6.2 × π= 19.477 ≈ 19.5
π also equals 3.14
Answer:
Step-by-step explanation:
-6x²+15x+9=0
divide by -3
2x²-5x-3=0
2x²+x-6x-3=0
x(2x+1)-3(2x+1)=0
(2x+1)(x-3)=0
either x=-1/2
or x=3
