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myrzilka [38]
3 years ago
14

(3m − 2n) and (4m − n) are the factors of ???

Mathematics
1 answer:
MariettaO [177]3 years ago
8 0
That would be choice 3
middle term = -3mn-8mn = -11mn and last term = + 2n^2
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Pleaseee help meee struggling currently
lisabon 2012 [21]

Answer: 2908.92435 inches.

Step-by-step explanation for shape 1: A = 2(wl + hl + hw) = 2 · (30 · 13 + 13 · 13 + 13 · 30) = 1,898 inches.

Step-by-step explanation for shape 2:

Using the formulas:

A=2AB+(a+b+c)h

AB=s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c

2

Solving for A:

A=ah+bh+ch+1

2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=9·30+13·30+9·30+1

2·﹣94+2·(9·13)2+2·(9·9)2﹣134+2·(13·9)2﹣94≈1010.92435

Step-by-step explanation for total volume: 2908.92435 inches.

5 0
2 years ago
Read 2 more answers
p: If two out of five people use the subway every day, then the probability of a person using the subway is 0.4.
Alexandra [31]

2 divided by 5 = 0.4

 so that statement is true.

3 0
3 years ago
Read 2 more answers
What is the value of |−44|?
julsineya [31]
Hey there!

Here is your answer:

The proper answer to this question is "44" .

Reason:

Think of it like this:

| | <---- This represents a car wash

When you add a positive or negative number in between the lines it represents a car going through the car wash.

So if...

|-44| (goes through the car wash)=44
|44| (goes through the care wash)=44

Therefore it would equal 44.

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit
6 0
3 years ago
Read 2 more answers
(x+3)(x−3)<br> In polynomial standard form
ozzi

Answer:

(x^2-9)

Step-by-step explanation:

Well, using FOIL you can put an polynomial in standard form.

4 0
3 years ago
A perfectly straight 24 ft tall tree grows on the edge of the bank of a 45 foot wide river. A bird sitting at the top of the tre
True [87]

Answer:

Distance covered by the bird before meeting the water is: 51.264 ft

Step-by-step explanation:

Notice that if the bird catches the fish in 2 seconds, then the fish was able to dive down a total of 6 feet before being caught:

distance=Vel\,* time=3\,\frac{ft}{s} *\,2\,\,s=6 \,\,ft

So the bird needs to fly in the direction of the hypotenuse of a right angle triangle (see attached image) that has one leg of length (24 ft + 6 ft) = 30 ft, and another one 22.5 ft (half the width of the river.

Such hypotenuse is (using Pythagoras theorem):

hyp =\sqrt{(60\,ft)^2+(22.5\.ft)^2} =\sqrt{4106.25} \,ft=64.08\,ft

Now, in order to find the distance D the bird covers from the top of the tree to the water (marked in red in our image), we use similar triangles. The bigger triangle is that of legs 60 ft and 22.5 ft and hypotenuse 64.08 ft.

The smallest triangle we use in the proportion is the one shaded yellow in the image, which has one leg equal to 24 ft, and unknown hypotenuse:

So we make the proportion between known legs, and hypotenuses:

\frac{24\,ft}{30\,ft} =\frac{D}{64.08\,ft} \\D=\frac{64.08\,ft\,*\,24\,ft}{30\,ft} \\D=51.264\,ft

7 0
3 years ago
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