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max2010maxim [7]
3 years ago
8

X^2-2x-15=0 x^2-7x=18 4n^2=4n+36=0

Mathematics
1 answer:
Blizzard [7]3 years ago
8 0

Answer: oh  this is hard

Step-by-step explanation: its b

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A manufacturer of electronic components is interested in determining the lifetime of a certain type of battery. A sample, in hou
Eva8 [605]

(a.)

Mean= sum / n

Mean= (123+116+122+110+175+126+125+111+118+117) / 10

Mean=1243 / 10

Mean= 124.3

Median:

Rearranged the data in order first

110,111,116,117,118,122,123,125,126,175

118 and 122 are at the middle

Median=1/2(n1 + n2)

Median=1/2(118+122)

Median=240/2

Median= 120

(b) 175 is the larger than the others value and larger than the mean, so it is the substantial difference between the mean and the highest value (175).

8 0
3 years ago
Please help me immediately ​
saw5 [17]

Answer:

756

Step-by-step explanation:

In the last question the volume of the tank was 168 m³

so to find the cost multiply 168 and 4.5

  • 168*4.5 =756

it will cost 756

7 0
3 years ago
Read 2 more answers
Root of the equation 0=2x+8
Alinara [238K]
What exactly is it asking for
4 0
3 years ago
Consider the following pair of equations:
Bond [772]
So the equations are: 

y= 3x + 3

y= x- 1

By the transitive property, we know x-1= 3x+3 (Transitive property means if a= b, and b= c, shouldn't a = c if they both equal b?)

so, x- 1= 3x + 3.  Now we isolate x and solve:
        +1          +1
x= 3x+ 4
-x  -x

0 = 2x+ 4
-4        -4

-4 = 2x
/2    /2

x= -2

Now, you can plug that back in to find y:

y = x- 1
y= -2 -1
y= -3

Then plug them both in to make sure it is correct. :o)
6 0
3 years ago
Set background
saw5 [17]

Answer:

45/5 = 9

Step-by-step explanation:

use PEMDAS

8 0
2 years ago
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