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alukav5142 [94]
2 years ago
9

Simplify the expression. What classification describes the resulting polynomial? (3x^2-11x-4)-(2x^2-x-6)

Mathematics
1 answer:
Gnoma [55]2 years ago
8 0

The expression can be simplified to a polynomial of degree 2.

x^2 - 10x + 2

<h3>How to simplify the expression?</h3>

Here we have the expression:

(3x^2 -11x - 4) - (2x^2 - x - 6)

We can directly simplify this by taking the variable as common factor:

(3 - 2)*x^2 + (-11 + 1)*x + (-4 + 6)\\\\x^2 - 10x + 2

This is a polynomial, as you can see, the maximum exponent is 2, so the degree of the polynomial is 2.

If you want to learn more about polynomials:

brainly.com/question/4142886

#SPJ1

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All the edges of a regular square pyramid have length 8. find the Volume of the pyramid, Lateral area of the pyramid and the Tot
RUDIKE [14]

Answer:

V = 120.6796

LA = 110.8513

SA = 174.8513

Step-by-step explanation:

Let me know if you need more of an explanation for any of these

First we need the height, one way to find that out is to use the diagonal of the  and one of the diagonal edges of the pyramid.  Specifically we will need half of the diagonal of the square.  We will call the diagonal of the square d.

8^2+8^2=d^2\\d=\sqrt{64+64} \\d=\sqrt{128}

Gonna leave it like that for ease of writing.  So then half of the diagonal is \frac{\sqrt{128}}{2}

The height, h, will be (\frac{d}{2})^2+h^2 = 8^2.  Plugging everything in gets us h=\sqrt{32}

last, we need to find slant height, which we will call s.

(\frac{8}{2})^2+h^2 = s^2\\s=\sqrt{48}

s is also the height of the triangles for purposes of finding area.  Now for the volume and areas.

Volume is area of the base times height divided by 3, so V=8^2\frac{\sqrt{32} }{3}  = \frac{64\sqrt{48} }{3} = 120.6796

Lateral area is the sum of the four areas of the triangles, and each of those are \frac{8*h}{2} so the whole lateral area is 4 times that.  So we get 4\frac{8\sqrt{32} }{2} =110.8513

Total surface area is the lateral surface area + the area of the base, so 110.8513 + 64 = 174.8513

6 0
3 years ago
Karen will divide her garden into equal parts. She will plant corn in 8/12 of the garden. What is the fewest number of parts she
PolarNik [594]

Answer:

4

Step-by-step explanation:

7 0
3 years ago
Please help meh. If the answer is right I will mark brainiest and 5 stars and thanks.
UNO [17]

Answer:

35/6

Step-by-step explanation:

The formula to find the volume of a rectangular prism is V = Bh. To start off, change the Base and height fractions into improper fractions. Multiply them to get 35/6.

3 0
2 years ago
Read 2 more answers
What is 42.5% of 200?
Diano4ka-milaya [45]
The answer would be 85, here's why
200/x=100/42.5
(200/x)*x=(100/42.5)*x      
200=2.3529411764706*x  
200/2.3529411764706=x 
85=x 
x=85
6 0
2 years ago
Find the solutions to 9x2 - 63x = 0.
laila [671]

Answer: B TRUST ME

I AM NOT IMPOSTER

Step-by-step explanation:

5 0
2 years ago
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