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DochEvi [55]
4 years ago
10

Need answer to this question because I can’t figure it out

Mathematics
1 answer:
prohojiy [21]4 years ago
6 0

Given: (4.2*10^-1)*(5.7*10^-1)

PEMDAS: Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction

Parenthesis: Exponents: In both parenthesis power 10 to -1: (4.2*.1)*(5.7*.1)

Parenthesis: Multiplication: Fix the parenthesis equations: .42*.57

Multiplication: Multiply .42 and .57 for answer: .42*.57=.2394

Answer: .2394

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Katie ordered candles that cost $3 each from a website. She was charged a flat shipping fee of $6 and no sales tax. If she spent
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6c = 54 Bcz "6 She was charged a flat shipping fee of $6 and no sales tax" ;)
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4 years ago
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Choose the point-slope form of the equation of this line.​
igor_vitrenko [27]

Answer:

y= -5x +7

Step-by-step explanation:

We can see points on the graph:

  • (2, -3) and (3, -8)

The function in general form is:

  • y= mx+b

Let's find the slope and y-intercept as per identified points on the graph:

  • m= (y1-y1)/(x2-x1)
  • m= (-8+3)/(3-2)= -5

b= y- mx

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Based on the found values of m and b, the given line is:

  • y= -5x +7
4 0
3 years ago
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David rents DVDS from a company that changes a $7.00 monthly fee and $1.50 for each dvd rental. He ends up paying $20.50 for the
serious [3.7K]
1.5x + 7 = 20.5
First subtract 7 from both sides
1.5x = 13.5
Then divide both sides by 1.5
x = 9


Let me know in comments if you have questions
3 0
3 years ago
2/7 of students in a school are in 8th grade.
saul85 [17]

Answer:

140

Step-by-step explanation:

First we would find the unit rate of students per seventh. So we would do 40 divided by 2 which gives us 20. So per 1/7 we have 20 students. Which we can then say 7 x 20 = 140. So in total there are 140 students

Hope this helped

3 0
3 years ago
Help on question 30!!
Basile [38]
The given identity tells you ...
.. (sum of numbers) * (sum of squares - product) = (sum of cubes)

Substituting the given information, you have
.. (sum of numbers) * (29 -10) = 133
Then you can divide by (29 -10) to get
.. sum of numbers = 133/19 = 7

The sum of the two numbers is 7.
3 0
3 years ago
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