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Hatshy [7]
2 years ago
6

Find the value of y so that the points (-2, 5) and (8, y) lie on a line with slope -1/5

Mathematics
1 answer:
Alja [10]2 years ago
4 0

Answer:

3

Step-by-step explanation:

\frac{ {3} - 5 }{8 + 2}  =   \frac{ - 2}{1 0}  =   \frac{ - 1}{5}

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A department store is having a sale of 20% off of all kitchen appliances. What is the sale price for a $250 microwave?
IgorC [24]

Answer:

200

Step-by-step explanation:

The price is 100%-20%=80% of the original.

So, 250*0.8 = 200

3 0
3 years ago
HELP PLEASE! PRE-ALGEBRA!
serious [3.7K]

Answer:

Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 2. and then rotating it about the origin by 180 degrees

Step-by-step explanation:

Step 1: Dilation by a scale factor of 1/2.

A point (x, y) is sent to (1/2 x, 1/2 y).

A(2, 2) ---> (1, 1)

B(2, 10) ---> (1, 5)

C(8, 12) ---> (4, 6)

Step 2: Rotate about the origin 180 degrees

A point (x, y) is sent to (-x, -y).

(1, 6) --->  A'(-1, -1)

(1, 5) --->  B'(-1, -5)

(4, 6) ---> C'(-4, -6)

6 0
3 years ago
An equation is shown below. 12 - 9 + c = 12 What value of c makes the equation true?
kvasek [131]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ 12 - 9 = 3

3 + c = 12

c = 12 - 3

c = 9

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

7 0
3 years ago
Read 2 more answers
Heights of 10 year olds, regardless of gender, closely follow a normal distribution with mean 55 inches and standard deviation 6
Firlakuza [10]
Given:
μ = 55 in, population mean
σ = 6 in, population standard deviation

Part (a)
x = 48 in, the random variable
Calculate the z-score.
z = (x - μ)/σ
   = (48 - 55)/6
   = -1.667
From standard table, obtain
P(X < 48) = 0.12167 

Answer: 0.1217  (tyo 4 dec.places)

4 0
3 years ago
According to famous tv critic bube tube why is television called a communications "medium"
Jlenok [28]
If you look up the definition of a medium, it is a tool.  In the case of television, it is a tool for spreading information. Much like the internet.
6 0
3 years ago
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