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2 years ago

A turntable has a diameter of 40 cm what is its circumference

Mathematics

1 answer:

Naddika [18.5K]2 years ago

3 0

Answer:

125.6 cm

Step-by-step explanation:

Diameter (d) = 40 cm

Circumference = πd

= 3.14 * 40

= 125.6 cm

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Find a formula for geometric series that begins with 28, 98, 343,...

otez555 [7]

Answer:

Step-by-step explanation:

In a geometric series, the successive terms differ by a common ratio which is determined by dividing a term by the preceding term.

The formula for determining the nth term of a geometric progression is expressed as

Tn = ar^(n - 1)

Where

a represents the first term of the sequence.

r represents the common ratio between successive terms in the sequence.

n represents the number of terms in the sequence.

From the seies shown,

a = 28

r = 98/28 = 343/98 = 3.5

The formula representing the nth term of the given sequence would be expressed as

Tn = 28 × (3.5)^(n - 1)

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3 years ago

What is the equation of line perpendicular to y-3=-4(x+2) and passee through the point (-5,7

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Answer: $y=\frac{1}{4}x+\frac{33}{4}$

Step-by-step explanation:

1. By definition, two slopes are perpendicular if their slopes are negative reciprocals of each other. So, let's find the slope of the other line.

2. The equation given in the problem is written in Point-slope form:

$y-y_1=m(x-x_1)$

Where m is the slope.

3. Therefore, the slope of its perpendicular line must be:

$m=\frac{1}{4}$

4. You have the point (-5,7), so you can substitute it into the point-slope formula to find the equation of the new line:

$y-7=\frac{1}{4}(x+5)$

5. In slope intercept form is:

$y=\frac{1}{4}x+\frac{5}{4}+7\\y=\frac{1}{4}x+\frac{33}{4}$

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3 years ago

What is the measure, in degrees, of an angle that represents 50/350 of a circle?

JulsSmile [24]

Answer:

$\mathrm{A.\: 50^{\circ} }$

Step-by-step explanation:

Since there are 360 degrees in a circle, we can set up the following proportion:

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3 years ago

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Given:

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So speed in minutes is 360 miles per min.

In 3 minutes traveling distance is:

$\begin{gathered} =360\times3 \\ =1080 \end{gathered}$

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1 year ago

There are 9 red and 6 green marbles in a bag

bagirrra123 [75]

Answer:

there are 15 marbles in the bag

Step-by-step explanation:

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A turntable has a diameter of 40 cm what is its circumference ​

A turntable has a diameter of 40 cm what is its circumference