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WINSTONCH [101]
3 years ago
6

A newborn baby's weight is recorded each month, from the day of birth until 12 months. One baby's weights, in pounds, are record

ed below:
7.20, 9.15, 11.01, 12.56, 14.04, 15.43, 16.52, 17.68, 18.77, 19.69, 20.22, 21.05, 21.90


What is the average amount of monthly weight gain, rounded to the nearest hundredth of a pound, each month?
A) 1.13
B) 15.79
C) 1.23
D) 16.52
Mathematics
2 answers:
Goryan [66]3 years ago
7 0
It can either be  A or C<span />
Nimfa-mama [501]3 years ago
3 0

Answer:

its C

Step-by-step explanation:

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Stephen places £950 in a bank account that pays 1.6% simple interest per year.
Gemiola [76]
A) 15.20
b) 965.2

i hope this is right (^^)
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3 years ago
For each of the following, state the equation of a perpendicular line that passes through (0, 0). Then using the slope of the ne
SVEN [57.7K]

Answer:

The answer is below

Step-by-step explanation:

a) y=3x-1

The standard equation of a line is given by:

y = mx + c

Where m is the slope of the line and c is the intercept on the y axis.

Given that y=3x-1, comparing with the standard equation of a line, the slope (m) = 3, Two lines with slope a and b are perpendicular if the product of their slope is -1 i.e. ab = -1. Let the line perpendicular to y=3x-1 be d, to get the slope of the perpendicular line, we use:

3 × d = -1

d = -1/3

To find the equation of the perpendicular line passing through (0,0), we use:

y-y_1=d(x-x_1)\\d\ is\ the \ slope:\\y-0=-\frac{1}{3} (x-0)\\y=-\frac{1}{3}x

To find  x if the point P(x, 4) lies on the new line, insert y = 4 and find x:

y=-\frac{1}{3}x\\ 4=-\frac{1}{3}x\\-x=12\\x=-12

b) y=1/4 x+2

Given that y=1/4 x+2, comparing with the standard equation of a line, the slope (m) = 1/4. Let the line perpendicular to y=1/4 x+2 be f, to get the slope of the perpendicular line, we use:

1/4 × f = -1

f = -4

To find the equation of the perpendicular line passing through (0,0), we use:

y-y_1=f(x-x_1)\\f\ is\ the \ slope:\\y-0=-4 (x-0)\\y=-4x

To find  x if the point P(x, 4) lies on the new line, insert y = 4 and find x:

y=-4}x\\ 4=-4x\\x=-1

8 0
2 years ago
A sum of rs 400 is lent for 3 yrs at the rate of 6% per annum. Find the interest.
Nimfa-mama [501]
Interest is equal to rs 72

Simple Interest is computed by multiplying the principal to the interest rate and the time.

I = P * r * t

Principal = rs 400
Interest rate = 6%
Term / time = 3 yrs

I = 400 * 6% * 3
I = 72   the total interest that must be paid in 3 yrs.
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These are all of the OC's i have made so fare what do you guys think
blsea [12.9K]

Answer:

Step-by-step explanation:

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