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Paraphin [41]
3 years ago
8

Three teachers have provided you with an equation that models their salaries in million of dollars each year. teacher

Mathematics
1 answer:
Yuliya22 [10]3 years ago
4 0
Teacher c makes the most money at the end of their career since the model is entirely linear. 
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Which expression is equivalent to 454•41/4 /1/2 4. 1/2
givi [52]

Answer:

2

Step-by-step explanation:

if you work inside parentheses first you get:

4^3/2 ÷ 4^1/2 which is 4

4^1/2 = \sqrt{4} which is 2

8 0
3 years ago
Complete the square f(x) = x^2 + 4x - 8 <br><br><br> PLZ help me ;c
Semenov [28]
Ok, first group x terms
f(x)=(x²+4x)-8
factor out quadratic coefient (no need but that's the step)
f(x)=1(x²+4x)-8
take 1/2 of the linear coefient and square it
4/2=2, (2)²=4
add positive and negative of it insides the parenthasees
f(x)=1(x²+4x+4-4)-8
factor perfect square
f(x)=1((x+2)²-4)-8
distribute
f(x)=1(x+2)²-4-8
f(x)=1(x+2)²-12
and, now if we wanted to find the x intercepts where f(x)=0 then
0=1(x+2)²-12
12=(x+2)²
+/-2√3=x+2
-2+/-2√3=x

x=-2+2√3 or -2-2√3
that is where the x intercept are

and completed square form is
f(x)=(x+2)²-12
6 0
3 years ago
What is the factored form of 20x - 10y + 15z?
ivanzaharov [21]

Answer:

5 ( 4 x − 2 y + 3 z )

8 0
3 years ago
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What is the probability that when a fair coin is flipped 25 times, there will be exactly five heads
kipiarov [429]
The probabability of this is 5/25
7 0
3 years ago
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How do stem leaf charts work
Lyrx [107]

Answer & Explanation:

A stem and leaf plot is used to organize data as they are collected. A stem and leaf plot looks something like a bar graph. Each number in the data is broken down into a stem and a leaf, thus the name. The stem of the number includes all but the last digit.

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3 years ago
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