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3 years ago

What is the value of 7m – 3n when m = 3 and n = 2?

Mathematics

2 answers:

Len [333]3 years ago

3 0

Answer:

It's 15.

Step-by-step explanation:

hoa [83]3 years ago

3 0

Answer:

Step-by-step explanation:

Plug in m = 3 & n = 2 into the equation.

7(3) - 3(2)

21 - 6

Hope this helps & have a great rest of your day!

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Write the missing blank with <,>,or=. (-5)(8)+3 blank (-6)(7)+1

aliina [53]

(-5)(8)+3 (blank) (-6)(7)+1

(-40)+3 (-42) +1

(-37) ( > ) (-41)

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3 years ago

A 6 foot tall baby giraffe standing next to an adult elephant casts a 15 ft shadow if the adult elephant casts a shadow that is

notsponge [240]

Answer:

29 ft

Step-by-step explanation:

15-6 = 9

20+ 9 = 29

7 0

3 years ago

If x = (10 − 3i) and y = (3 − 10i), then xy= and x/y=

elena-14-01-66 [18.8K]

Xy= (10-3i)(3-10i)
=30-100i- 9i+30i^2
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6 0

4 years ago

Read 2 more answers

Select the correct answer.

maks197457 [2]

Answer:

See Explanation

Step-by-step explanation:

Your question is poorly formatted. However, I'm able to deduce that your question involves at least 2 algebraic fractions that needs to be simplified.

So, I'll make use of the following expression:

$\frac{3n}{n + 3} + \frac{5}{n - 4}$

When you follow the steps I'm about to provide, you'll arrive at the right answer

Required

Determine an equivalent expression

$\frac{3n}{n + 3} + \frac{5}{n - 4}$

Step 1: Take L.C.M of the denominators

$LCM = (n+3)(n-4)$

Step 2: Evaluate the fractions

$\frac{3n}{n + 3} + \frac{5}{n - 4}$ $= \frac{3n(n-4)+5(n+3)}{(n+3)(n-4)}$

Step 3: Open the brackets at the numerator

$\frac{3n}{n + 3} + \frac{5}{n - 4}$ $= \frac{3n^2-12n+5n+15}{(n+3)(n-4)}$

Step 4: Collect and evaluate like terms

$\frac{3n}{n + 3} + \frac{5}{n - 4}$ $= \frac{3n^2-7n+15}{(n+3)(n-4)}$

Follow the above steps, and you'll be able to solve your question.

6 0

3 years ago

in a continuous data the median class is 40-50. If the cumulative frequencies of the premedian class is one half of the sum of t

Ede4ka [16]

To find the median, add up the frequency column to find how many trains there were in total. There were 44 trains in total in this grouped frequency table, so work out 44 + 1 2 = 45 2 = 22.5. The median is therefore between the 22nd and 23rd values.

3 0

3 years ago