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Ivan
3 years ago
8

A group of 44 friends meets for lunch. They greet each other by exchanging fist bumps. How many fist bumps are exchanged if each

friend must bump with each of the 43 ​others?
Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
6 0
I think 44 because there is 44 friends so 44 bumps
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A factory produces 6 times as many loaves of white bread as wholemeal bread in a day. If the factory produces 2640 loaves of whi
kondor19780726 [428]

The number of loaves of white bread more than whole meal bread that are produced in a day are 1760.

We are given that:

A factory produces 6 times as many loaves of white bread as whole meal bread in a day that is:

Let the number of whole meal bread be a variable say x.

So, the number of loaves of white bread = 6 x.

Now, we are given that:

number of loaves of white bread = 2640

6 x = 2640

x = 2640 / 6

x = 880

The number of loaves of white bread more than whole meal bread that are produced in a day = 2640 - 880 = 1760

Therefore, we get that the number of loaves of white bread more than whole meal bread that are produced in a day are 1760.

Learn more about variable here:

brainly.com/question/82796

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8 0
2 years ago
(√x+1/√x)^2find dy/ dx and substitute 2 in dy/ dx
lions [1.4K]
Hello,
That's better.

I suppose y=( \sqrt{x} + \dfrac{1}{ \sqrt{x} } )^2 \\

y'=2*( \sqrt{x} + \dfrac{1}{ \sqrt{x} } )*( \dfrac{1}{2 \sqrt{x} } - \dfrac{3}{2x \sqrt{x} } )

If x=2  then
y'=2*( \sqrt{2} + \dfrac{1}{ \sqrt{2} } )*( \dfrac{1}{2 \sqrt{2} } - \dfrac{3}{2*2* \sqrt{2} } )\\
=2* \dfrac{2+ \sqrt{2} }{ \sqrt{2} } * \dfrac{1}{4*\sqrt{2} } *(-1)\\
=- \dfrac{2+ \sqrt{2} }{4}

3 0
3 years ago
10. If log10x = 1 + a and log10y = 1 – a, show that xy = 100.<br> How?
gregori [183]

Step-by-step explanation:

log x = 1 + a

a = log x - 1

log y = 1 - a

a = 1 - log y

So

log x - 1 = 1 - log y

log x + log y = 2

log (xy) = 2

xy = 100

7 0
3 years ago
A line passes through (-2, 3) and has a slope of 0.2. Write an equation of the line.
mars1129 [50]

Answer:

y = 0.2x + 3.4

Step-by-step explanation:

Slope intercept form of line is

y = mx + c

where

m = slope

c is y intercept

given that slope is 0.2 thus, m = 0.2

now equation of line

y = 0.2x + c

now we substitute value of x and y ( (-2, 3) in this equation as given that the given point passes through the line

3 = 0.2*-2 + c

3 = -0.4 + c

c = 3+0.4 = 3.4

put c = 3.4 in equation

y = 0.2x + c

y = 0.2x + 3.4

Thus,

third option , y = 0.2x + 3.4 is the correct answer

3 0
3 years ago
Help ASAP!!What is the volume of our planet if we assume that it is a sphere with the radius 3, 950miles? Round your answer to t
zloy xaker [14]

Answer: 258023743333miles³

Step-by-step explanation:

Volume of a sphere = 4/3πr³.

where,

π = 3.14

r = radius = 3950

Volume of a sphere = 4/3πr³.

= 4/3 × 3.14 × 3950³

= 4/3 × 3.14 × 61629875000

= 258023743333miles³

The volume of our planet if we assume that it is a sphere with the radius 3,950miles will be 258023743333miles³

8 0
3 years ago
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