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Sedaia [141]
2 years ago
13

Adding rational numbers 3/5 + 4/5= 1 ?/5​

Mathematics
2 answers:
Sonbull [250]2 years ago
6 0
I think the answer is 7/5
Leya [2.2K]2 years ago
4 0

Answer:

1 2/5

Step-by-step explanation:

3/5 + 4/5= 7/5

7 - 5= 2

1 2/5

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Suppose a brand of light bulbs is normally​ distributed, with a mean life of 1400 hr and a standard deviation of 150 hr. Find th
Mariulka [41]

Answer:

The probability that a light bulb of that brand lasts between 1175 hr and 1610 hr is 0.8524.

Step-by-step explanation:

Given : Suppose a brand of light bulbs is normally​ distributed, with a mean life of 1400 hr and a standard deviation of 150 hr.

To find : The probability that a light bulb of that brand lasts between 1175 hr and 1610 hr ?

Solution :

Applying z-score formula,

z=\frac{x-\mu}{\sigma}

where, \mu=1400 is population mean

\sigma=150 is standard deviation

For x=1175 hour,

z=\frac{1175-1400}{150}

z=\frac{-225}{150}

z=-1.5

For x=1610 hour,

z=\frac{1610-1400}{150}

z=\frac{210}{150}

z=1.4

The required probability is,

P(1175< X

P(1175< X

Using z table, the values are

P(1175< X

P(1175< X

The probability that a light bulb of that brand lasts between 1175 hr and 1610 hr is 0.8524.

4 0
3 years ago
The new Bamo Super Ball has a rebound ratio of 0.97. If you dropped the ball from a
LUCKY_DIMON [66]

Answer:

92.18 feet

Step-by-step explanation:

t(n)=125(.97)^x

t(10)=124(.97)^10

Sequence cant have partial or discrete bounce

6 0
2 years ago
Read 2 more answers
Each place in a binary number has a value of a power of 2 that increases from right to left. The power of 2 used for the ones pl
sineoko [7]

Answer:

0

Step-by-step explanation:

The power is 0 since 2^0 = 1.

3 0
2 years ago
PLZ HELP ASAP
gladu [14]

Answer:

180.

Step-by-step explanation:

Given

x = 1%2F2y

x+y=180

...

Substitute x into the second equation and solve for y, the larger angle

 

1%2F2y + y = 180

Multiply both sides by 2 to be rid of the fraction

y + 2y = 360

3y = 360

highlight_green%28y=120%29

...

Check cartoon%28%0D%0A120+%2B+%281%2F2%29%28120%29%2C%0D%0A120+%2B+60%2C%0D%0A180%29

3 0
3 years ago
Read 2 more answers
Given EG = 16 and FH = 12, what is the length of one side of the rhombus?
nevsk [136]
Length of one side of the rhombus is 10.
If there is a rhombus EFGH, such as yours, with points E, F, G, H (such as in the .jpeg image in attachment), and if the notation of rhombus side is a (rhombus has 4 sides and each of them is of the same length):
FH/2 = 12/2 = 6 (shorter diagonal of rhombus, it's half)
EG/2 = 16/2 = 8 (longer diagonal of rhombus, it's half)
-----------------------------------------
a^2 = (FH/2)^2 + (EG/2)^2
a^2 = 6^2 + 8^2
a^2 = 36 + 64
a^2 = 100
a = square root of 100
a = 10

3 0
3 years ago
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