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VikaD [51]
3 years ago
9

What does x equal ???????​

Mathematics
1 answer:
san4es73 [151]3 years ago
6 0

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>.</em>

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Help! Can anyone Simplify this for me
Tcecarenko [31]
64x^{6} y^{12}
5 0
3 years ago
K is equal to l<br> m is equal to n<br> as the angles are marked, what's x and y
Greeley [361]
X - y + x + y = 180
2x = 180
  x = 90
2x - 2y = x + y
  x = 3y
  y = x/3
  y = 90/3
  y = 30

x - y = 90 - 30 = 60
x + y = 90 + 30 = 120
2x - 2y = 180 - 60 = 120

3 0
3 years ago
Jessica knows that the adult population gets, on average, eight hours of sleep each night. A hypothesis test can help her see if
Nitella [24]

Answer:

-4.42

Step-by-step explanation:

Given the following :

Population mean (pm) = 8 hours

Sample mean (sm) = 6.9 hours

Number of observations (n) = 101 students

Sample standard deviation (sd) = 2.5

Using the t-statistic formula :

[(sm - pm) / (sd/√n)]

Hence,

[(6.9 - 8) / (2.5/√101)]

[(-1.1) / (2.5/10.05)]

-1.1 / 0.2487562

= −4.422

The test statistic = - 4.42 to the nearest hundredth.

6 0
3 years ago
I NEED HELP PLEASE !
MrRa [10]

Answer:

x = 4, -2 1/2

Step-by-step explanation:

factors:

(2x + 5) (x - 4)

set each factor equal to zero:

2x + 5 = 0

2x = -5

x = -5/2

x - 4 = 0

x = 4

6 0
3 years ago
Natalie has 28 erasers. She divided some of her erasers equally among 3 friends. Natalie has 10 erasers left. How many erasers d
Korvikt [17]
Hey there! :D

Subtract 10 from 28. 

28-10= 18

Now, divide that by 3. (for her three friends) 

18/3= 6

Each friend got 6 erasers. 

I hope this helps!
~kaikers
8 0
3 years ago
Read 2 more answers
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