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sineoko [7]
3 years ago
15

A scale has a percent error of 7%. The scale reads the mass of a book as 450 g. Which statement describes what the actual mass o

f the book could be?
Mathematics
2 answers:
Nesterboy [21]3 years ago
8 0
Do you know the answer?
Nonamiya [84]3 years ago
6 0

Answer: 419 g or 482 g

Step-by-step explanation:

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2. Tamika is on page 20 of her book and reads 4 pages every night. Mark is on page 30 of the same book
Dmitry [639]

Answer:

7 nights

Step-by-step explanation:

Tamika:          Mark:

20                   30

24                   32

28                   34

32                   36

36                   38

40                   40

44                   42

48  

52  

56  

60  

6 0
3 years ago
If side A = 11 units and side B = 20 units, what is the length of side C?
defon
I think it’s C because 20-11 is C xD
3 0
1 year ago
You borrow $1,000 on a simple interest loan. You pay an annual rate of 3.5%. You will
ICE Princess25 [194]

Answer:

The amount of interest to be paid is $105

Step-by-step explanation:

To find how much interest that will be paid, we will follow the steps below;

Simple Interest = PRT / 100

where p is the principal,  R is the rate and T is the time  in years

from the question given

principal P = $1000

Rate R = 3.5  

and time T = 3

substitute the values into the formula above

Interest = $1000×3.5×3   / 100

              =$10×3.5×3

               =$105

Interest = $105

The amount of interest to be paid is $105

6 0
3 years ago
The roots of 2x^{2} + 3x = 4 are α and β. Find the simplest quadratic equation which has roots <img src="https://tex.z-dn.net/?f
elena-s [515]
2x^2+3x=4\implies2x^2+3x-4=0\implies x=\dfrac{-3\pm\sqrt{41}}4

Let \alpha be the root with the positive square root and \beta the root with the negative square root. Then

\dfrac1\alpha=\dfrac4{-3+\sqrt{41}}\quad\text{and}\quad\dfrac1\beta=\dfrac4{-3-\sqrt{41}}

The simplest quadratic with these roots can be written as

\left(x-\dfrac1\alpha\right)\left(x-\dfrac1\beta\right)=x^2-\left(\dfrac1\alpha+\dfrac1\beta\right)x+\dfrac1{\alpha\beta}=x^2-\dfrac34x-\dfrac12
4 0
3 years ago
-4x-9y=1 -x+2y=-4 send help thanks
evablogger [386]
Hey those are linear functions, gotta find Y or X and draw on two axis X/Y. in first y = 4/9x + 1/9. in second y = X/2 - 2.
6 0
3 years ago
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