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4 years ago

Okay guys i need help on this please please pleaseeee help!! <3

Mathematics

1 answer:

Ksju [112]4 years ago

6 0

Answer:

Option 2 (y = 0.50 + 0.02x / y = 0.25 + 0.03x) is correct.

Step-by-step explanation:

The values 0.50 and 0.25 should not change because it is a one-time fee, so option 1 and option 4 are wrong. Furthermore, the values 0.02 and 0.03 change each minute and should be multiplied with a variable. Those values must add together to get the final value. Therefore, option 3 is wrong, and option 2 is right.

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shepuryov [24]

<h3>Answer: 5 - 4i (choice A)</h3>

===================================================

Work Shown:

x = the other number

(5+4i)*x = 41

x = 41/(5+4i)

x = 41*(5-4i)/( (5+4i)*(5-4i) ) ..... see note below

x = 41*(5-4i)/( 41 )

x = (41/41)*(5-4i)

x = 5 - 4i

As a way to check, (5+4i)*(5-4i) = 5^2+4^2 = 25+16 = 41

The rule used is (a-bi)(a+bi) = a^2 + b^2

-----------

Note: I multiplied top and bottom by (5-4i) to get rid of the imaginary term in the denominator.

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3 years ago

Find the slope using the formula. (3,-2) and (3, 6)

dangina [55]

Answer:

m = undef

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (3, -2)

Point (3, 6)

Step 2: Find slope m

Substitute: $m=\frac{6+2}{3-3}$
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Divide: m = undef

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