Answer:
The standard deviation is 2.6832815729997
Step-by-step explanation:
SD^2=(12-12)^2+...+(14-12)^2/10
SD^2=72/10
SD^2=7.2
SD=squeare root of 7.2
SD=2.6832815729997
Answer:
3x + 4
Step-by-step explanation:
We have a product of 3 and x. That's rewritten as 3x. We then have 4 more, so we add 4. That gives us the final answer of: 3x+4. (It is 1-4x for the third one). ( The fourth one) The sum of seven and the quotient of a number x and eight
Here, x be the number.
" quotient of a number x and eight" translated to x/8
Sum means '+'
"sum of seven and the quotient of a number x and eight" translated to 7+ x/8 +56+x/8
then; the given statement is 56+x/8
⇒
Therefore, the given statement is 56+x/8
The expression that represents the amount mother spent is 4 × 5.00 + 2.00.
This outing will cost $22.00.
Solution:
Number of members in a family = 4
Cost of one ticket = $5.00
Cost of soft drink = $2.00
Mother spent = Number of members × Cost of each ticket + Cost of soft drink
= 4 × 5.00 + 2.00
The expression that represents the amount mother spent is 4 × 5.00 + 2.00.
To solve this expression using PEDMAS rule.
First do multiplication.
4 × 5.00 + 2.00 = 20.00 + 2.00
Now do addition.
4 × 5.00 + 2.00 = 22.00
Hence this outing will cost $22.00.
Answer:
45.56923076923077
Step-by-step explanation:
Work out 51.6 x 12 which is 619.2 and subtract that from 1804.80 then x your answer which is 1,184.8 and divide by 26 to get your answer which is 45.569....
Step-by-step explanation:
Draw picture of 2 points (-1, 7), (1, 5) at line x and y
and use the formula
slope = (y2 - y1)/(x2 - x1)
If convexity to the right slope +
If convexity to the left slope -
