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SIZIF [17.4K]
3 years ago
6

Hello guys I really need help is anyone available please and ty

Mathematics
1 answer:
kati45 [8]3 years ago
5 0

Answer:

your right

Step-by-step explanation:

I think....

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The zeroes of the polynomial f(x) = x^2+x+3/4 are​
matrenka [14]

Step-by-step explanation:

f(x) = x² + x + 3/4

in general, such a quadratic function is defined as

f(x) = a×x² + b×x + c

the solution for finding the values of x where a quadratic function value is 0 (there are as many solutions as the highest exponent of x, so 2 here in our case)

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = 1

c = 3/4

x = (-1 ± sqrt(1² - 4×1×3/4))/(2×1) =

= (-1 ± sqrt(1 - 3))/2 = (-1 ± sqrt(-2))/2 =

= (-1 ± sqrt(2)i)/2

x1 = (-1 + sqrt(2)i) / 2

x2 = (-1 - sqrt(2)i) / 2

remember, i = sqrt(-1)

f(x) has no 0 results for x = real numbers.

for the solution we need to use imaginary numbers.

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3 years ago
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Together a refrigerator and a desk cost $216. Find the price of each if the refrigerator costs three times as much as the desk
zheka24 [161]

Refrigerator 162$ and desk cost 54

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3 years ago
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Daria invested $5,000 in an account that earns 5% interest annually. She will earn $(blank) in interest over nine months.
Murrr4er [49]
5000*.05. The answer is $250.
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Can someone explain how to find the answer to x​
OLga [1]

Answer:

130

Step-by-step explanation:

X is the alternate corresponding angle to 50.   50+y=180

y=130

x and y = the  same thing so 130 is the value of x

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Answer:

4/11 of 2 1/2 = 4/11 * 5/2 = 20 / 22 = 10/11

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3 years ago
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