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3 years ago

11

Estimate the sum of 7.2 + 7.3 + 6.9 + 6.8.

1 answer:

zloy xaker [14]3 years ago

8 0

Answer:

28

Step-by-step explanation:

7.2 is rounded down to 7, 7.3 is rounded down to 7, 6.9 is rounded up to 7, and 6.8 is rounded up to 7. Then you can add 7+7+7+7 to get an estimation of 28.

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If -a=b and a+c=d then b+c=d

Effectus [21]

This is incorrect

-a = b
a + c = d
b + c = d is incorrect because it says a + c and not -a + c.

If you multiply the first line with -1 then you would get a = -b
So the final line would actually be -b+c=d

3 0

3 years ago

a company has two packaging machines in a unit, each with a different daily capacity. the capacity of machine 1 is defined by th

Licemer1 [7]

The required function C (m ) which represents the combined capacity of the two machines is $c(m) = 2m^2 + 104m + 1704$

What are functions?

A connection between a collection of inputs and outputs is known as a function.

The given functions are:

$f(m) = (m+40)^2 + 10 \\and\\g(m) = (m+12)^2 - 50$

$C(m) = f(m) + g(m)$

Expanding the two square brackets in the following manner to calculate that sum:

$f(m) = (m+40)^2 + 10 = m^2 + 80m + 1600 + 10 = m^2 + 80m + 1610\\g(m) = (m+12)^2 - 50 = m^2 + 24m + 144 - 50 = m^2 +24m + 94$

$f(m) + g(m) = 2m^2 + 104m + 1704$

Therefore, function C (m ) which represents the combined capacity of the two machines is $c(m) = 2m^2 + 104m + 1704$

Learn more about functions here:

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What is the answer to 0.55 divided by 100

ratelena [41]

The answer is 0.0055

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almond37 [142]

The answer is $2xy \sqrt{y} + 2xy^2 \sqrt{x}$

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Answer: i hope this helps!

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