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Mice21 [21]
2 years ago
13

Select difference of (8x2-3x3) - (2x2-5x3)

Mathematics
2 answers:
mylen [45]2 years ago
5 0
(8x2-3x3) - (2x2-5x3)
= (16-9)-(4-15)
=7-(-11)
=7+11
=18
storchak [24]2 years ago
5 0
(8x^2 - 3x^3) - (2x^2 - 5x^3)

= 8x^2 - 3x^3 - 2x^2 + 5x^3.

= 8x^2 - 2x^2 + 5x^3 - 3x^3.  Simplify together like terms.

= 6x^2 + 2x^3

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What is the solution to the quadratic equation 8m^2+7m-15=-7 ?
Aleks04 [339]
Make equal to zero
add7 both sides
8m^2+7m-8=0
quadratic fomrula

if you have
ax^2+bx+c=0
x=\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}

8m^2+7m-8=0
a=8
b=7
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x=\frac{-7+/- \sqrt{7^{2}-4(8)(-8)} }{2(8)}
x=\frac{-7+/- \sqrt{49+256} }{16}
x=\frac{-7+/- \sqrt{305} }{16}

x=\frac{-7+ \sqrt{305} }{16} or x=\frac{-7- \sqrt{305} }{16}

aprox
x=-1.52902 or 0.654016


4 0
2 years ago
What is the area of the trapezoid shown below?
Andreyy89

Step-by-step explanation:

If you want to know how to find the area of a trapezoid, just follow these steps.

Identify the length of both bases. The bases are the two parallel sides of the trapezoid. Let’s call them sides A and B. Suppose A is 8 in long and side B is 13 in long.

Add the lengths of the bases. Add 8 in and 13 in. 8 in + 13 in = 21 in.

Identify the elevation of this trapezoid. The height of the trapezoid is vertical to the bases. In this case, assume the elevation of the trapezoid is 7 in.

Multiply the amount of the lengths of the bases by the elevation. The amount of the lengths of these foundations is 21 in and the height is 7 in.

Divide the result by 2. Split 147 in2 by 2 to find the last answer. 147 in2/2 = 73.5 in2. The area of the trapezoid is 73.5 in2.

P.S Brainly was made to help you with your homework not do it for you.

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3 years ago
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Describe how the product of 0.08 x 8 would look on a one hundred-square grid.
olchik [2.2K]
The product would have 64 squares shaded out of 100.

0.08 x 8 = 64 which means, 64 would be shaded. Hope this helps!
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1 year ago
If PQRS is a parallelogram with two adjacent congruent sides, then _____________________.
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543,982 rounded to the nearest thousand
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It would be 544,000

hope this helps you
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3 years ago
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