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3 years ago

Factor the expression completely. -15t - 6

Mathematics

1 answer:

nadezda [96]3 years ago

3 0

Hope this helps!! God bless:)

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3 years ago

Riders travel at a average speed of 61 feet per second for 3118 feet. A maximum of 187 per second. What is this as an expression

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3 years ago

29 turn a fraction to a decimal

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kipiarov [429]

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3 years ago

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In exercises 9 to 12 all solutions to the equations

natita [175]

Answer:

12b. 28 = x

12a. -7 = x

11b. -6 = x

11a. 9 = x

10b. UNDEFINED

10a. -⅕ = x

9b. i = x

9a. ±3 = x

Step-by-step explanation:

12. Cube both sides of both equations, then solve for x:

$12b. \: 3 = \sqrt[3]{x - 1} >> 27 = x - 1 \\ \\ 28 = x \\ \\ 12a. \: -2 = \sqrt[3]{x - 1} >> -8 = x - 1 \\ \\ -7 = x$

11. Square both sides of both equations, then solve for x:

$11b. \: 1 = \sqrt{x + 7} >> 1 = x + 7 \\ \\ -6 = x \\ \\ 11a. \: 4 = \sqrt{x + 7} >> 16 = x + 7 \\ \\ 9 = x$

10. Dividing is the same as multiplying by the multiplicative inverse of another term:

$10a. \: -5 = \frac{1}{x} >> -5 = {x}^{ -1} \\ \\ -\frac{1}{5} = x$

* ⁻¹ indicates the multiplicative inverse of -⅕, which is -5. Then there is 1⁄0, which is undefined.

$9b. \: -6 = {x}^{2} - 5$

+ 5 + 5

____________________

-1 = x²

$i = x$

According to the Complex Number System, the iota symbol can be either complex or real:

$\sqrt{-1} = i \\ -1 = {i}^{2} \\ -i = {i}^{3} \\ 1 = {i}^{4}$

I am joyous to assist you anytime.

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4 years ago

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