Help me im struggling

Mathematics

1 answer:

motikmotik3 years ago

7 0

Answer:

XZ/PR = XY/PQ

Step-by-step explanation:

because those are the only variables that lines up with the triangle and goes in order.

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Your drawer contains 6 black socks and 8 white socks you randomly choose 2 socks without putting any back. What is the probabili

Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

First, you have to find the total number of socks. The total is 14. Now, since you choose 2 socks out of 14 in total, the probability is 2/14 or about 14%. To find the percent, just divide the numerator by the denominator. The answer you get is in decimal form. Multiply the decimal by 100. Then, there is your percent.

5 0

2 years ago

Write an equation in standard form for each line.

LenaWriter [7]

The standard form: Ax + By = C.

The point-slope form:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

7. We have the points (4, -7) and (2, -3). Substitute:

$m=\dfrac{-3-(-7)}{2-4}=\dfrac{4}{-2}=-2\\\\y-(-7)=-2(x-4)\qquad|\text{use distributive property}\\\\y+7=(-2)(x)+(-2)(-4)\\\\y+7=-2x+8\qquad|-7\\\\y=-2x+1\qquad|+2x\\\\\boxed{2x+y=1}$

8. We have the points (1, 5) and (-10, -6). Substitute:

$m=\dfrac{-6-5}{-10-1}=\dfrac{-11}{-11}=1\\\\y-5=1(x-1)\\\\y-5=x-1\qquad|+5\\\\y=x+4\qquad|-x\\\\-x+y=4\qquad|\text{change the signs}\\\\\boxed{x-y=-4}$