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3 years ago

. -((-55) + 2) How to solve this including step by step

Mathematics

1 answer:

skad [1K]3 years ago

7 0

Answer:

Step-by-step explanation:

apply the rule: - (a)=a

- (-55)=55

=55+2

add the numbers: 55+2=57

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Help please!!!

katovenus [111]

Answer:

x = $\frac{7+\sqrt{47}\times i }{4}$

Step-by-step explanation:

<u>To solve quadratic systems,we always substitute one variable in terms if the other and then solve the equation.</u>

x + 2y = 6 ---------------(1)

y - 5 = $(x-2)^{2}$ ---------------(2)

y = $(x-2)^{2}$ + 5 ---------------(3)

Substitute (3) in (1) ,

x + 2( $(x-2)^{2}$ + 5 ) = 6

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x + 2( $x^{2} - 4x + 4$ + 5 ) = 6

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The roots of the quadratic equation $ax^{2} +bx+c$ is

x = $\frac{(-b) + \sqrt{(-b)^{2}-4 \times ac } }{2 \times a}$ -----------(5)

According to equation (5),solution of (4) is

x = $\frac{7 + \sqrt{(-7)^{2}-4 \times 24 } }{2 \times 2}$

x = $\frac{7+\sqrt{49-96}}{4}$

x = $\frac{7+\sqrt{47}\times i }{4}$

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3 years ago

A 4-cup container of window cleaner costs $4.48. what is the price per fluid ounce?

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Step-by-step explanation:

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3 years ago

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I guess you mean that the zeroes are 2 and -3/5.

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expanding we get

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4 years ago