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2 years ago

Pls help with this question.....i will give the brainliest 500 points

Mathematics

2 answers:

Alex17521 [72]2 years ago

8 0

Answer: 131.88 m

Step-by-step explanation: Formula for circumference of a circle: 2 * pi * r

(Using 3.14 as pi)

The first thing you should do is find the radius. The radius is half of the diameter, which is the line through the middle of the circle. Diameter, 42, divided by 2, equals 21. Next you plug the radius, 21, and pi, 3.14, into the 2*pi*r formula:

2 * 3.14 * 21 = 131.88

That's the circumference, hope this helped.

masha68 [24]2 years ago

6 0

Answer:

132

Step-by-step explanation:

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Are 4/16 and 0.25/2 equivalent numbers? If so, explain how they are.

Aleksandr-060686 [28]

Two fractions are equivalent if the product of the numerator of the first and the denominator of the second is equal to the product of the numerator of the second and the denominator of the first.
4 x 2 ___ 16 x 0.25
8 is not equal to 4
Thus, they are not equivalent.

3 0

3 years ago

A company designs T-shirts. They charge $40 for set-up cost plus $12 per shirt. write the slope intercept form.

Dovator [93]

Answer: y= 12x +40

Step-by-step explanation:

7 0

3 years ago

The student-to-faculty ratio at a small collage is 17:3. The total number of students and faculty is 740. How many faculty membe

kozerog [31]

There are 111 faculty members at the college and 629 students at the college.

Step-by-step explanation:

Given,

The student to faculty ratio = 17:3

Total number of 740.

Let,

x be the original number.

Number of students = 17x

Number of faculty = 3x

Number of students + Number of faculty = 740

$17x+3x=740\\20x=740$

Dividing both sides by 20

$\frac{20x}{20}=\frac{740}{20}\\x=37$

Number of students = 17x = 17*37 = 629

Number of faculty = 3x = 3*37 = 111

There are 111 faculty members at the college and 629 students at the college.

Keywords: ratio, multiplication

Learn more about multiplications at:

#LearnwithBrainly

6 0

3 years ago

Please help thank you !

makkiz [27]

If he has 6 friends they will all get 8 cards

5 0

3 years ago

Read 2 more answers

PLEASE AND THANK YOU CONFUSED ON THIS

ICE Princess25 [194]

After staring at this for a few seconds, I think the equation

$-5\sqrt{10}\cdot\sqrt{15}=[1]\sqrt{[2]}$

is asking you to simplify the left hand side so that it has a form matching the right hand side, and [1] and [2] are placeholders. My guess is that they're supposed to be integers.

Notice that

$\sqrt{10}=\sqrt{5\cdot2}=\sqrt5\cdot\sqrt2$

$\sqrt{15}=\sqrt{5\cdot3}=\sqrt5\cdot\sqrt3$

$\implies\sqrt{10}\cdot\sqrt{15}=(\sqrt5)^2\cdot\sqrt2\cdot\sqrt3=5\sqrt{2\cdot3}=5\sqrt6$

Then multiplying by -5, we have

$-5\sqrt{10}\cdot\sqrt{15}=-25\sqrt6$

so I believe [1] = -25, and [2] = 6.

5 0

2 years ago