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rusak2 [61]
3 years ago
5

PLEASE HELP DUE IN 20 MINUTES

Mathematics
1 answer:
postnew [5]3 years ago
7 0

Answer:

25x3

Step-by-step explanation:

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WHO EVEN ANSWERS FIRST WILL BE MARKED BRAINLIEST
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Answer:

it's -6 4/9 so B

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At the market, 8 batteries cost $10 .How much do 6 batteries cost
vagabundo [1.1K]
$10 / 8 = 1.25
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3 years ago
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If some one could help me with these three questions I will be stoked!!!please please help me my teacher didn’t walk us through
salantis [7]

17) replace the given number for "x" and evaluate

a) x² + 2x + 1   ; when x = 3

  3² + 2(3) + 1

= 9 + 6 + 1

= 16

b) x² + 2x + 1   ; when x = -4

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= 9

c) x² + 2x + 1   ; when x = 3

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= 523.128384 - 45.744 + 1

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18) The dependent variable is affected by the other variable and is the "output"   The independent variable is the input.

a) y = 3x - 5;    "x" is the independent variable

b) the time of day is the independent variable  (you would input the time of day to calculate the temperature).

19) Let the x-axis represent the length of the lumber cut off and the y-axis represent the length of the lumber remaining.

5 0
3 years ago
The resting heart rate of an adult is usually about 60 beats per minute. Use your completed table to find approximately how many
Fofino [41]

if 60 beats = 1 minute, and a minute is 60 seconds then 1,000,000 beats has to be divided by 60 = 16667 rounded to the nearest hundred thousand and divide that by 1440 (How many seconds in a day) = 11.574 days.


That equates to 11days, 13hours, 46 min, and 40 sec

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3 years ago
Select all of the following that are quadratic equations.
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The name Quadratic<span> comes from "quad" meaning square, because the variable gets squared (like x</span>2<span>). However, it is important to not that an expression is only quadratic if and only if the highest degree of a term is 2. Therefore, the quadratic equations from the pool of choices would be as follows:

</span><span>3x^2 + 5x - 7 = 0
</span><span>5x^2+ 15x = 0
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3 0
3 years ago
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