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katrin2010 [14]
2 years ago
7

Hi pls help me in math im soo stuck:(((​

Mathematics
1 answer:
Genrish500 [490]2 years ago
8 0
2x = 48, 3x = 72, 4x = 96, 6x = 144


2x + 3x + 4x + 6x = 360
15x = 360
x = 24

2x = 2(24) = 48
3x = 3(24) = 72
4x = 4(24) = 96
6x = 6(24) = 144
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Nuetrik [128]

It looks like you might have intended to say the roots are 7 + i and 5 - i, judging by the extra space between 7 and i.

The simplest polynomial with these characteristics would be

f(x) = (x - (7 + i)) (x - (5 - i))

but seeing as each of the options appears to be a quartic polynomial, I suspect f(x) is also supposed to have only real coefficients. In that case, we need to pair up any complex root with its conjugate to "complete" f(x). We end up with

f(x) = (x - (7 + i)) (x - (7 - i)) (x - (5 - i)) (x - (5 + i))

which appears to most closely resemble the third option. Upon expanding, we see f(x) does indeed have real coefficients:

f(x) = (x^2 - (7^2 - i^2)) (x^2 - (5^2 - i^2)) = (x^2 - 8) (x^2 - 6) = x^4 - 14x^2 + 48

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2 years ago
I think of a number,divide it by 4 then subtract 3. Give your answer in algebraic notation.
Vilka [71]
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(*make sure to write the division in fraction form as shown for algebraic notation)
5 0
2 years ago
What is the GCF of 24 and 44?
mariarad [96]
<span> write out all the factors of each number or draw out a factor tree

24:1,2,3,4,6,8,12,24

44:1,2,4,11,22

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6 0
2 years ago
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Quadrilateral ABCD is inscribed in this circle. What is the measure of ∠A ? Enter your answer in the box. ° A quadrilateral insc
Lubov Fominskaja [6]
Answer: The measure of angle A is 59 degrees.

When you have a quadrilateral inscribed in a circle the opposite sides are always supplementary (add to 180). Given the order of the vertices of our quadrilateral, we know that A and C are opposite.

Therefore, we can write and solve the following equation.
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3 years ago
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BabaBlast [244]

Answer:

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area = π × (7)^2 = 22/7 × 49 = 22 × 7 = 154

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3 0
3 years ago
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