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Anna007 [38]
4 years ago
8

What does 3 - 4y + 9y equal to

Mathematics
2 answers:
zloy xaker [14]4 years ago
7 0
I think its 3 - 13y, since you can't combine unlike terms.
shtirl [24]4 years ago
4 0
I thinck it is 10 but dont trust me wait for another person


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Assuming the standard definitions of addition and scalar multiplication, decide whether or not the following sets are vector spa
nadezda [96]

Answer:

See attached pictures.

Step-by-step explanation:

See attached pictures.

4 0
3 years ago
A 40-foot tree casts a shadow 60 feet long. How long would the shadow of a 6-foot man be at that time?​
Andre45 [30]

Answer:

26 ft

Step-by-step explanation:

I'm guessing this is how it's done

60-40= 20

there for at this time any shadow would be 20x it's original height/length

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lmk if I'm correct

4 0
3 years ago
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In the figure, a ll b and m 6 = 146 degrees <br><br> What is the m 2?
levacccp [35]
Due to m<2 is a corresponding angle to m<6, the answer to the question is 146°.
5 0
4 years ago
You invested $500 in a savings account and after three years you had $650 in your bank. What was the interest rate? Use the equa
SpyIntel [72]

Answer:

An increase of 43.3% per year

Step-by-step explanation:

using the equation, plug in the respective variables. 650 =500R3, 3 times 500 is 1500. 650=1,500R. divide both sides by 1500 to get .4333, 3 repeating. .433 in percent form is 43.3%. (I just use 650 out of 500 or 650/500 which is 1.3 divided by 3 because 3 years to get the same amount)

6 0
3 years ago
(X-2) is a factor of x^4+2x^3-7x^2-8x+12. The other factors are ____, ____, and _____
Vika [28.1K]

We have

\dfrac{x^4+2x^3-7x^2-8x+12}{x-2}=x^3+4x^2+x-6

The rational root theorem suggests that other possible roots may be -6, 6, -3, 3, -2, 2, -1, and 1. It turns out that x=-2 is a root, since (-2)^3+4(-2)^2+(-2)-6=0, so x+2 is also a factor and we have

\dfrac{x^4+2x^3-7x^2-8x+12}{(x-2)(x+2)}=x^2+2x-3

Finally, we can factorize the remaining quotient easily:

x^2+2x-3=(x+3)(x-1)

so the other factors are x+2, x+3, and x-1.

5 0
3 years ago
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