All categories

4 years ago

Plz help me on this question

Mathematics

1 answer:

Sladkaya [172]4 years ago

7 0

y is the weight in kg

So sub 63 in y

63=0.91x-65.5

63+65.5=0.91x

128.5=0.91x

128.5÷0.91=x

141(3 s.f.)=x

You might be interested in

Which of the following is the additive identity of 5+2i

Alex17521 [72]

Answer:

Can you take a picture of the question so i could help!

Step-by-step explanation:

7 0

4 years ago

Is 4,800 milliliters equal, less than, or more than 4.2 liters?

Andrews [41]

Answer:

less than

Step-by-step explanation:

because

1 l= 1000 ml

so 4.2 l= 4.2x1000

= 4200 l

so 4200<4800

8 0

3 years ago

Read 2 more answers

PLEASE HELP!!! WILL REWARD BRAINLIEST!!!

jonny [76]

Answer:

The approximate monthly rate of growth is 1.24%

Step-by-step explanation:

we have the future value formula

$F=P(1+r)^t$

we have

$r=16\%=16/100=0.16$ ----> annual interest rate

$F=P(1+0.16)^t$

$F=P(1.16)^t$

Find the approximate monthly rate of growth

Remember that

$1\ year=12\ months$

Divide the number of periods t by 12

$F=P(1.16)^{\frac{t}{12}}$

Applying power rules property

$F=P(1.16^\frac{1}{12})^t$

$F=P(1.0124)^t}$

$1.0124-1=0.0124$

Convert to percentage

$0.0124*100=1.24\%$

therefore

The approximate monthly rate of growth is 1.24%

6 0

3 years ago

Please solve B, C, D, E, and F and I will give Brainliest!

kykrilka [37]

Answer:

a. 125

b. 25/64

c. 0.25

d. 343

e. 49/4

f. 0.81

Step-by-step explanation:

multiply by the same number by the amount of times the power tells you

b. 5*5 = 25 8*8= 64

c. 5*5 = 25 0.5*0.5 = 0.25

d. 7*7*7 = 343

e. 7*7 = 49 2*2= 4

f. 9*9 = 81 0.9*0.9= 0.81

5 0

3 years ago

The variance of a stock's returns can be calculated as the:

Tamiku [17]

Answer:

The correct option is b.

Step-by-step explanation:

The formula for standard deviation is

$\sigma^2=\frac{\sum {(x-\overline{x})^2}}{n}$

where, $\overline{x}$ is mean of the data and n is number of observation.

The variance of a stock's returns can be calculated by the above formula.

Variance of stock's returns is the average value of squared deviations from the mean.

Therefore the correct option is b.

4 0

4 years ago