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Juli2301 [7.4K]
3 years ago
6

kathy recorded the following measurement of length: 2.5 cm, 2.9 cm, and 3.1 cm. what is the mean for this set of values, in cm?

Mathematics
1 answer:
jeka943 years ago
8 0
2.5cm=25 mm
2.9cm=29 mm
3.1cm=31 mm
They give it in cm because it’s easier to guess how long it will be in real life
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1. Which expression is equivalent to the given expression? * -0.25 (84 – 32n) - n
Ira Lisetskai [31]
Hi! Multiply -0.25 by the inner numbers.

-0.25 times 84 = 21
-0.25 times -32n = -8n

Then take the -n and add that
21 -8n - n

-8n - n (or -1n) = -9n

therefore, answer would be a) 21 - 9n


7 0
2 years ago
Can anyone please help me!?<br> dont answer nonsense for points plz or i will report
kramer

See explanations

Step-by-step explanation:

1.

Choosing the product of power property,when you multiply exponentials with the same base , you add their exponents.

This is represented as :

(x^a)*(x^b)=(x^{a+b)}

This property is true in that ;

where you have x³ × x³ , x³ is x*x*x and the other x³ is x*x*x .Adding the xs will give x⁶ which is similar to 3+3=6 xs

A numerical example could be;

x^2+x^3=x^{2+3} =x^5

Learn More

Properties of exponential functions :brainly.com/question/8742222

Keywords : properties, exponents, numerical expression

#LearnwithBrainly

3 0
3 years ago
Which of the following ordered pairs represents the solution to the system given below?
castortr0y [4]
X − 4y = 7
5x + 9y = 6

5x − 20y = 35  //1st * 5
5x + 9y = 6

5x +9y - 5x + 20y = 6 - 35  //2nd - 1st
5x + 9y = 6

29y=-29
5x=6-9y

y=-1  //1st : 29
5x=6-9*(-1)

y=-1
x=15:5 //2nd : 5

y=-1
x=3

check:
for x=3 and y=-1 there is:
x − 4y = 7 is 3 − 4*(-1) = 7 is 7=7 ok
5x + 9y = 6 is 15-9=6 is 6=6 ok

answer: (3;-1) represents the solution.

8 0
3 years ago
Read 2 more answers
What is 12 divided by 2/3<br><br><br><br> What is 2/3 divided by 12
Alex777 [14]
12 divided by 2/3 = 18
2/3 divided by 12 = 0.5
8 0
3 years ago
A shoe factory makes the same number of shoes each hour.By 1:00 pm, the factory made 240 shoesBy 5:00 pm, the factory made 432 s
Anton [14]
432-240=192
192 is the amount of shoes produced in 4 hours
194/4=48
48 is the amount of shoes products per hour
8 0
3 years ago
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