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svet-max [94.6K]
3 years ago
8

Help me please in zearn

Mathematics
1 answer:
viktelen [127]3 years ago
3 0

Answer:

Circumference ≈ 82.9

Step-by-step explanation:

The formula for calculating the circumference of a circle is:

C = 2πr

Where 3.14 is pi (as stated on your screen)

And r is the radius.

Knowing this substitute those values

C = 2(3.14)(13.2)

Multiply 2 and 3.14.

C = (6.28)(13.2)

Multiply 6.28 and 13.2.

C = 82.9 when rounded.

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Describe how to transform (5 square root x^7)^3
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(5 * sqrt(x^7))^3

Recall sqrt(x^2)=x

So we get (5*x^6 )^3

5*3 is 25, 6*3 is 18 (and exponent to an exponent multiplies)

Therefore the answer is 25x^18
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Solve the equation. 9+2 14x – 31 = 19<br> Please answer it step by step
siniylev [52]

Answer:

x =  \frac{41}{28}  = 1 \frac{13}{28}

Step-by-step explanation:

9 + 2(14x - 3) = 19

9 + 28x - 31 = 19

- 22 + 28x = 19

28x = 19 + 22

28x = 41

\boxed{\green{x =  \frac{41}{28}  = 1 \frac{13}{28}}}

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3 years ago
Given figure LMNO ~ figure STUV, what is the value of x? LMNO has 4.1 in and 22. in and STUV has 12.3 in
Furkat [3]
Set up a proportion:

4.1/22 = 12.3/x

Cross multiply:

4.1 * x = 22 * 12.3

4.1x = 270.6

Divide 4.1 to both sides:

x = 66
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Read 2 more answers
Select all numbers that are integers. Look back at your notes if you forgot the definition of an integer!
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Answer:

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8 0
3 years ago
Passes through the point (0,6) and has a slope of -2/3
Vadim26 [7]

Answer:

y=-\frac{2}{3}x + 6

Step-by-step explanation:

We are given that a line has a slope of -2/3 and passes through the point (0,6)

We want to write the equation of this line; there are 3 forms of the line that we can use:

  • Slope-intercept form, which is y=mx+b, where m is the slope and b is the y intercept
  • Standard form, which is ax+by=c, where a, b, and c are free integer coefficients, but a and b cannot be 0, and a cannot be negative
  • Slope-point form, which is y-y_1=m(x-x_1), where m is the slope and (x_1, y_1) is a point

All though while writing the equation of the line in any of these ways is acceptable, the most common way is to write it in slope-intercept form, so let's do it that way.

As we are already given the slope, we can immediately substitute m with that value.

Replace m with -2/3:

y = -2/3x + b

Now we need to find b.

As the equation passes through the point (0, 6), we can use it to help solve for b.

Substitute 0 as x and 6 as y.

6 = -2/3(0) + b

Multiply

6 = 0 + b

Add

6 = b

Substitute 6 as b.

y = -2/3x + 6

Topic: finding the equation of the line

See more: brainly.com/question/27645158

8 0
2 years ago
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