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Masja [62]
3 years ago
9

Lauren drew a scale drawing of the elementary school she use the scale 1 cm equals 3 m the actual length of the schoolyard is 14

4 m how long is the schoolyard in the drawing
Mathematics
1 answer:
Zigmanuir [339]3 years ago
4 0
Ghbhhhhhhhhhhhhhhhhhhhhhhhhhh
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Write the simplest polynomial function for each set of zeros<br><br> Zeros = -2, 5, -1
deff fn [24]

Answer:

The polynomial is ;

x^3 -2x^2 -13x - 10

Step-by-step explanation:

Given the zeros, we set them to equal zero so as to get the linear factors

Mathematically, that will be as follows;

x = -2

x + 2

x = 5

x-5

x = -1

x + 1

So we have the polynomial as;

(x + 1)(x + 2)(x-5)

= (x -5)(x^2 + 3x + 2)

= x^3+ 3x^2 + 2x -5x^2 -15x - 10

= x^3 -2x^2 -13x - 10

5 0
3 years ago
The prime factorization of 64 is
Igoryamba

Answer:

2x2x2x2x2x2

Step-by-step explanation:

Exponential Form: 2^6

3 0
3 years ago
Read 2 more answers
Please help me with this question.
Vesna [10]

Answer:

3 to 9

second is 2.5 to 15

Step-by-step explanation:

3 0
3 years ago
Volume and surface area are often compared by manufacturers in order to maximize how much of something can go inside of a packag
notka56 [123]
We have no dimensions to work with. I'll pick some and try and comply with the conditions of the problem. 

Suppose you have an object that is 14 by 22 by 27 cm. These three numbers have no common factor so they cannot be reduced any further, which is helpful for this problem.

Find the Volume
Volume

l = 27 cm
w = 14 cm
h = 22 cm

V = 27 *14 * 22
V = 8316 cm^3

Find the surface area
SA = 2*l*w + 2*l*h  + 2*w*h
SA = 2*27*14  +  2*27*22   +  2*14*22
SA = 756 + 1188 + 616
SA = 2558

Just looking at these numbers The surface area is about 1/3 of the volume. I don't think this is always true.


 \frac{SA}{V} =  \frac{2*L*W  + 2*L*H + 2*W*H}{L*W*H} 

Another way to do this is to consider a cube which might give you a more useful result. 

s = L = W = H all three dimensions are equal in a cube.
The volume of a cube is s*s*s = s^3
The surface area of a cube is 2*s*s + 2*s*s + 2s*s = 6s^2

\frac{SA_cube}{V_cube} =  \frac{6s*s}{s*s*s}
\frac{SA}{V} =  \frac{6}{s}

That means whatever the side length, the Surface Area to volume = 6/the side length which is kind of an interesting result.


4 0
3 years ago
Simplify 9-[3+2•3] if anyone could help me with this question
Butoxors [25]

do what is in the parenthesis first and you multiply first. 3x2 is 6. 6+3 is 9. 9-9 = 0

I think the answer is 0


3 0
3 years ago
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