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3 years ago

Write the following polynomial in expanded form (2k-5)^2

Mathematics

1 answer:

Ann [662]3 years ago

4 0

Answer:

(2k-5)(2k-5)

Step-by-step explanation:

The exponent of 2 lets us know that the numbers and variables in the parentheses are getting multiplied together twice. E.x: if it was (2k-5)^3, it would have 3 sets of parentheses instead of 2.

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Determine which of the lines, if any, are parallel. Explain.

amid [387]

Answer:

Line A and Line C are parallel

Step-by-step explanation:

Slope Equation: $m=\frac{y_{2} - y_{1}}{x_{2} - x_{1}}$

Step 1: Find the slope of the first line

Line a passes through (-1, -2) and (1, 0).

$m = \frac{(0- (-2))}{(1 - (-1))}$

$m=\frac{2}{2}$

$m=1$

Step 2: Find the slope of the second line

Line b passes through (4, 2) and (2, -2).

$m = \frac{(-2- 2)}{(2 - 4)}$

$m = \frac{-4}{-2}$

$m=2$

Step 3: Find the slope of the third line.

Line c passes through (0, 2) and (-1, 1).

$m=\frac{(1-2)}{(-1 - 0)}$

$m=\frac{-1}{-1}$

$m=1$

Answer: Line A and Line C are parallel

5 0

3 years ago

What is the slope of the line and NO LINKS

Alenkinab [10]

Answer:i would 1*/

Step-by-step explanation: because

3 0

3 years ago

Would appreciate the help

Akimi4 [234]

Number C because of the rationale deluct

5 0

3 years ago

Pleaseeee helppppppppp meeeeee

Lera25 [3.4K]

Answer:

x = 10 yd

Explanation:

These triangles are based on proportions. 12 yd is proportional to 18 yd, and x yd to 15 yd. We want to find x. We'll use the rule of three to calculate the unknown number.

12/18 = x/15

x = (12 · 15)/18

x = 10 yd (10 yards from the hut to the gold coins)

3 0

3 years ago

Having some trouble here need some help not really good at this

kolezko [41]

Answer:

none of these are correct

Step-by-step explanation:

4 0

2 years ago