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2 years ago

Find the circumference of the circle. Round your answer to two decimal places if necessary 4cm

Mathematics

1 answer:

ratelena [41]2 years ago

7 0

Answer:

I think its 12.56

Step-by-step explanation:

Multiply 4 and 3.14(thats pi)

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Twice the sum of 2 consecutive integers equals 106. determine the value of each integer

ivanzaharov [21]

26&27

Start by writing out the equation which would be: 106=2(n+n+1)

N: fist integer
N+1: is the consecutive integer

Then solve:
106=2(2n+1). Combine.
106=4n+2. Distribute.
104=4n. Move whole numbers to the left.
N=26. Divide
N+1=27 Plug in for second integer

7 0

3 years ago

Read 2 more answers

Eight is added to a number and the sum is doubled, the result is -11 less than the number. Find

inna [77]

If you don’t know what a number is, you should substitute it for x and make an equation with the information you have been given. This gives:

(x + 8) x 2 = x - 11

Then, solve:

2x + 16 = x - 11

2x = x -27

x = -27

This can then be checked by using the number in the original text.

-27 + 8 = -19

-19 x 2 = -38

-38 is 11 less than -27.

Hope this helps :)

3 0

3 years ago

Distrubutive property 4(c+d+9)

ivann1987 [24]

Answer:

4c+4d+36

Step-by-step explanation:

multiply each separate variable inside the parenthesis by the number outside of parenthesis.

7 0

3 years ago

Write an equation in point-slope form for the line that has a slope of 45 and contains the point (−5,−3).

olga55 [171]

Answer:

y+3=45(x+5)

Step-by-step explanation:

Hi there!

Point-Slope Form:

y-y1=m(x-x1)

Where

y1 stands for the y-coordinate of the point

m stands for the slope of the line

x1 stands for the x-coordinate of the point

In this case, the slope is 45, the y-coordinate of the given point is -3, and the x-coordinate of the point is -5.

Plug in the values and solve:

y-y1=m(x-x1)

y-(-3)=45(x-(-5)

y+3=45(x+5)

Hope it helps!

Enjoy your day!

Please feel free to ask if you have any doubts.

$\bf{MysteriousSparkle}$

8 0

2 years ago

The Pythagorean theorem is a² + b² = c². Solve for b. b=±c+a−−−−√ b=±c2−a2−−−−−−√ b=±c2+a2−−−−−−√ b=±c−a−−−−√

uysha [10]

$a^{2} +b^{2} =c^{2}$

As we have to solve for b, it means we have to isolate b

So first of all subtract $a^{2}$ from both sides

So we get

$b^{2} =c^{2} -a^{2}$

Now we need b , but its b^2 , so we can take square root on both sides.

taking square roots on both sides

$b= +- \sqrt{c^2 -a^2}$

Hence option B is correct

4 0

3 years ago