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docker41 [41]
3 years ago
8

Select all the polygons that can be formed by the intersection of a plane and a cube. A. triangle B. square C. rectangle D. pent

agon E. hexagon F. octagon
Mathematics
1 answer:
Mama L [17]3 years ago
7 0

Answer:

I think it's C

Step-by-step explanation:

sorry if you get it right. \ʕ •ᴥ•ʔ/

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Which are the solutions of x^2 = –11x + 4?
strojnjashka [21]

This is a quadratic equation, i.e. an equation involving a polynomial of degree 2. To solve them, you must rearrange them first, so that all terms are on the same side, so we get

x^2 + 11x - 4 = 0

i.e. now we're looking for the roots of the polynomial. To find them, we can use the following formula:

x_{1,2} = \frac{-b\pm\sqrt{b^2-4ac}}{2}

where x_{1,2} is a compact way to indicate both solutions x_1 and x_2, while a,b,c are the coefficients of the quadratic equation, i.e. we consider the polynomial ax^2+bx+c.

So, in your case, we have a=1,\ \ b=11,\ \ c=-4

Plug those values into the formula to get

x_{1,2} = \frac{-11\pm\sqrt{121+16}}{2} = \frac{-11\pm\sqrt{137}}{2}

So, the two solutions are

x_1 = \frac{-11+\sqrt{137}}{2}

x_2 = \frac{-11-\sqrt{137}}{2}

3 0
3 years ago
A customer is making a deposit and would like to receive $25.00 in cash back
Ghella [55]
I'm not following. What's the question?
3 0
3 years ago
-4(4v-u-6) solve using distributive property
GarryVolchara [31]

Answer:

Step-by-step explanation:

-4 ( 4v - u - 6 )

You will multiply -4 with everything in the parentheses.

-16v + 4u + 24

4 0
3 years ago
What is the solution of the equation when solved over the complex numbers?<br><br> x^2+27=0
Luba_88 [7]

Answer:

(0,27)

Step-by-step explanation:

x2 + 27 = 0

Solutions based on quadratic formula:

x1  

= −0 − √ 02 − 4×1×27   2×1 = 0 − 6 × √ 3 i   2 ≈ −5.196152i

x2  

= −0 + √ 02 − 4×1×27   2×1 = 0 + 6 × √ 3 i  2 ≈ 5.196152i

Extrema:

Min = (0, 27)

8 0
3 years ago
Read 2 more answers
What is the measure of angle z in this figure?
ASHA 777 [7]

Answer:

z = 137°

Step-by-step explanation:

z^{o} =(180-43)^{o} =137^{o}

Hope this helps

7 0
2 years ago
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