All categories

2 years ago

Evaluate the expression XY FOR X=8 and Y=4

Mathematics

1 answer:

vovangra [49]2 years ago

4 0

Answer:

Step-by-step explanation:

XY means x times y

and x = 8 or x is 8

and y = 4 or y is 4

so 4 times 8 is 32

XY = 32

You might be interested in

What is ✓ 75 in simplified form?<br> O 5V5<br> 0 2573<br> O 3V 5<br> O 3V 25

faust18 [17]

It should be 5√3

Because 25 x 3 = 75

√25=5 so u bring that out and keep the 3 in because it’s a prime number

3 0

3 years ago

The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The d

jek_recluse [69]

Answer:

50%

Step-by-step explanation:

68-95-99.7 rule

68% of all values lie within the 1 standard deviation from mean $(\mu-\sigma,\mu+\sigma)$

95% of all values lie within the 1 standard deviation from mean $(\mu-1\sigma,\mu+1\sigma)$

99.7% of all values lie within the 1 standard deviation from mean $(\mu-3\sigma,\mu+3\sigma)$

The distribution of the number of daily requests is bell-shaped and has a mean of 55 and a standard deviation of 4.

$\mu = 55\\\sigma = 4$

68% of all values lie within the 1 standard deviation from mean $(\mu-\sigma,\mu+\sigma)$ = $(55-4,55+4)$ = $(51,59)$

95% of all values lie within the 2 standard deviation from mean $(\mu-1\sigma,\mu+1\sigma)$ = $(55-2(4),55+2(4))$ = $(47,63)$

99.7% of all values lie within the 3 standard deviation from mean $(\mu-3\sigma,\mu+3\sigma)$ = $(55-3(4),55+3(4))$ = $(43,67)$

Refer the attached figure

P(43<x<55)=2.5%+13.5%+34%=50%

Hence The approximate percentage of light bulb replacement requests numbering between 43 and 55 is 50%

4 0

3 years ago

Which represents the domain of the relation {(–1, 4), (2, –3), (0, –2), (1, –3)}?

Fantom [35]

Domain means the “input” which is like when u input a number in a vending machine and then the output is you getting the chips or whatever u got from imputing the number. So the answer would be C because is is asking for the front numbers in the relation or plots of points.

7 0

3 years ago

What is a pair of irrational numbers whose difference is 0?

Mandarinka [93]

Answer:

When the difference of two numbers is zero, it means that the two numbers are the same.

Therefore, any irrational number substracted by itself will be equal to zero.

Here some examples:

√8 - √8 = 0
√1.6 - √1.6 = 0
π - π = 0

5 0

3 years ago

Y=4+4x fill in the table using this function rule x y 1 2 3 5

Feliz [49]

Answer:

1 2 3 4 5

4 8 12 16 20

Step-by-step explanation:

the x is 4 therefore, count by 4.

7 0

2 years ago