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stellarik [79]
4 years ago
7

What is equivalent to 3(y+4)+4(y-2)

Mathematics
1 answer:
amid [387]4 years ago
7 0

Answer:

7y+4

Step-by-step explanation:

combine liked terms

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4.) (7x – 21) = x - 1
Korvikt [17]
The answer is x = 10/3. You just have to add 21 to both sides of this equation then simplify. Hope this helped!
6 0
3 years ago
In one statistics course, students reported studying an average (mean) of 9.92 hours a week, with a standard deviation of 4.54.
quester [9]

Answer:

For the student who is studying 10 hours a week is in the 57.93th percentile.

Step-by-step explanation:

Corresponding z-score for the student who studies 10 hours a week can be calculated by the formula

z=\frac{x-M}{s} where

  • x is the hours student work in a week, which is 10,
  • M is the mean studying hour of the class, which is 9.92,
  • s is the standart deviation which is 4.54

from here we find that z=\frac{10-9.92}{4.54}≈0.2

Corresponding percentile for z=0.2 is 57.93

6 0
3 years ago
a gallon of gasoline cost 30 cents in 1960 and $1.30 in 1980. what was the percent increase in the price of gasoline
hammer [34]
A gallon of gasoline cost 30 cents in 1960 an 
$1.30 in 1980
percent increase in the price = ?
first we have to convert cents into dollars so that both amounts have to be in same unit
30 cents = $0.3
increase in gasoline cost = $1.30 - 0.3 = $1
now for calculating percent increase divide this with the new amount and than multiply with 100
percent increase = ($1 / $1.30) x 100 = 76.92% = 77% approx.
so, there is 77% increase in the price of gasoline

5 0
3 years ago
#11! Plzzz help Algebra 2 Honors :))))
dmitriy555 [2]

A vertical asymptote simply means that the function is undefined at a certain point. We are given that it occurs at x=25. Notice that x is in the denominator and if the denominator equals 0, the entire function is undefined. <em>a</em> and <em>k</em> are simply constants, and so they can take on any value. This is one of infinite solutions to this question:

f(x) = \frac{\pi}{x-25} + e^6

Notice that when you plug in x=25, the denominator is 0 and the function is undefined making it a vertical asymptote.

Hope I could help!

7 0
3 years ago
Geometry help! Will give BRAINLIEST
disa [49]
Ok, so the sum of the angles of a triangle are 180 degrees. 

Add the ratios together: 8+3+9 = 20.

The smallest angle is 3/20 * 180, so it has a measure of 27 degrees.
5 0
3 years ago
Read 2 more answers
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