3 years ago

The circumference of a circle is 36 cm.

Mathematics

1 answer:

dusya [7]3 years ago

6 0

18cm (A). Remember to get the radius when you have the circumference is to ALWAYS divide it by 2. 36/2 = 18

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nordsb [41]

Answer:

22 miles per hour

Step-by-step explanation:

we know that

The speed is the ratio of distance by the time

Let

d -----> distance in feet

t ----> time in seconds

s ----> the speed in ft/sec

$s=\frac{d}{t}$

we have

$d=100\ ft\\t=3.1\ sec$

substitute

$s=\frac{100}{3.1}$

$s=32.26\frac{ft}{sec}$

Remember that

$1\ mi=5,280\ ft$

$1\ h=3,600\ sec$

Convert ft/sec to mi/h

$s=32.26\frac{ft}{sec}=32.26\frac{(1/5,280)}{(1/3,600)}=32.26(\frac{3,600}{5,280})=22\ \frac{mi}{h}$

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3 years ago

I need help on this statistic problem.

vladimir1956 [14]

Answer:

Option B.

Step-by-step explanation:

In a regression of y in x, the proportion oh the variation in y explained by the variable x is shown in the R-squared value. So, for answering this question we need to look at the R-squared of such regression.

In this case the R-squared is 98.9% (or 0.989), so we will the option that matches this value. Looking at your options, the one that matches the R-squared is option B.

So, B is the correct option.

3 0

3 years ago

Two numbers have an absolute value of 16 . Which of the two numbers is greater than 12. Can someone plz help me answer this ques

KATRIN_1 [288]

Answer:

Step-by-step explanation:

Absolute value means the modulus of a number.

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16 > 12

6 0

3 years ago