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Mars2501 [29]
3 years ago
8

What is the answer for (3n + 5)(3n+6)​

Mathematics
2 answers:
Rzqust [24]3 years ago
6 0

Answer:

<u>9n^2+33n+30</u>

Step-by-step explanation:

I just did the math and got this answer!!

HOPE IT HELPS!!!!

:):):):)

statuscvo [17]3 years ago
5 0

Answer:

9n^2 + 33n + 30

Step-by-step explanation:

You're looking to multiply these two binomials together, and then to simplify the result, to obtain the product.

Have you used the "FOIL" method of multiplying binomials?

That's what we'll apply here.

F:  first terms.  The product of the first terms 3n and 3n is 9n^2.

O:  outer terms.  The product of the outer terms 3n and 6 is 18n.

I:  inner terms:  15n

L:  last terms:  30

Putting this all together, we get 9n^2 + 18n + 15n + 30, or

9n^2 + 33n + 30 (this is the desired answer, the product of (3n + 5) and (3n+6)​.

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Montano1993 [528]
Ok so assume that if you have
xy=0 then x and y=0
-1/4(x^2-4x+3)>0
multiply both sides by -4 to clear fraction (-4/-4=1)
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x^2-4x+3<0
factor
(x-3)(x-1)<0

we know that (+) times (-)=(-) and 
(-) times (-)=(+) so we don't want them to be both negative, we want different sign
we cannnot have 3 since it would be (0)(2)<0 which is false
we cannot have 1 either since (-2)(0)<0 is also false
lets see if the solution is in betwen 3 and 1 or outside of 3 and 1
ltry 2
2^3-4(2)+3<0
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5 0
3 years ago
Find the slope of the graph of the equation <br> 3x + 15y = 25<br> (Please show your work)
pantera1 [17]
Answer:

y= - 1/5x + 5/3
3 0
3 years ago
Read 2 more answers
If f(x) is an exponential function where f(-1.5) 26 and
mariarad [96]

Answer:

f(10) = 1147.25

Step-by-step explanation:

Given

f(-1.5) = 26

f(5.5) = 7

Required

f(10)

An exponential function is represented as:

f(x) = ab^x

f(-1.5) = 26 impleies that:

26 = ab^{-1.5} --- (1)

f(5.5) = 7 implies that

7 = ab^{5.5} --- (2)

Divide (2) by (1)

26/7 = ab^{-1.5}/ab^{5.5}

3.71429 = b^{-1.5+5.5}

3.71429 = b^{4}

Take 4th root

b = 1.39

Substitute b = 1.39 in 26 = ab^{-1.5}

26 = a * 1.39^{-1.5}

26 = a * 0.6102

Solve for (a)

a = 26/0.6102

a = 42.61

f(10) is calculated as:

f(10) = ab^{10}

f(10) = 42.61 * 1.39^{10}

f(10) = 1147.25

3 0
2 years ago
I need help please helpp
mash [69]

Answer:

I believe it's B.Let me know if it's right,if it not,i'm so sorry

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The ratio of the width to the length of a rectangle is 2:3, respectively. Answer each of the following. a By what percent would
Elina [12.6K]

Answer:

The percentage increase in Area of rectangle is 200%

Step-by-step explanation:

Given as :

The  ratio of the width to the length of a rectangle is 2:3

Let The length of rectangle = 2 x

Let The width of rectangle = 3 x

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Or,  A_1  =  6 x²

<u>Again</u>

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I.e The increase width of rectangle = 3 x + 1.5 x = 4.5 x

∵ Increased Area of rectangle = increased length × increased width

Or,   A_2  = 4 x × 4.5 x  = 18 x²

So, The percentage increase in area = \dfrac{A_2 - A_1}{A_1} × 100

Or, The percentage increase in area = \frac{18 x^{2}-6x^{2}}{6x^{2}} × 100

Or , The percentage increase in area = \dfrac{12}{6} × 100

∴ The percentage increase in area  = 200

Hence, The percentage increase in Area of rectangle is 200% Answer

5 0
3 years ago
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