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stepladder [879]
2 years ago
14

-1/3 - (-5/12) i need help

Mathematics
2 answers:
hoa [83]2 years ago
4 0
I didn’t know how to type it so I just did it on paper

Whitepunk [10]2 years ago
3 0
Remove parenthesis
Find LCD=12
Make all denominators the LCD
Simplify
Add the denominators
1/12
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Which value represents the slope of the line that has a x-intercept at (-4, 0) and a y--intercept at (0, -12) in the coordinate
Alona [7]

Answer:

-  \frac{1}{3}

7 0
3 years ago
Let X be the mean of a random sample of size n = 64 from the uniform distribution on the interval (0, 3), i.e. f(x) = ( 1 3 , 0
allochka39001 [22]

Answer:

P ( 1.2 < X < 2.1 ) = 0.3

Step-by-step explanation:

Given:

Uniform distribution over interval (0,3) can be modeled by a probability density function f(x)

f(x) = 1 / (b - a)

Where a < x < b is the domain at which function is defined:

f(x) = 1 / (3) = 1 / 3

Where, X - U ( u , δ )

u = ( a + b ) / 2 = (0 +3) / 2 = 1.5

δ = ( b - a ) / sqrt (12) = (3 - 0) / sqrt (12) = 0.866

Hence,

X - U ( 1.5 , 0.866 )

There-fore calculating P ( 1.2 < X < 2.1 ):

P ( 1.2 < X < 2.1 ) = \int\limits^b_a{f(x)} \, dx

Where, a = 1.2 and b = 2.1

P ( 1.2 < X < 2.1 ) = x / 3 |

P ( 1.2 < X < 2.1 ) = 2.1 /3 - 1.2 / 3 = 0.3

Answer: P ( 1.2 < X < 2.1 ) = 0.3

6 0
3 years ago
First, let's see if the measuring tools work for you. what is the angle of refraction corresponding to the angle of incidence eq
Dafna1 [17]
The concept to answer this question can be bought from physics. 
The Snell's law of refraction says that, the ration of sine of angle of incidence to the the sine of angle of refraction is constant for a given media.

This means; 
(sinθ1)/(sinθ2) = k
Where θ1 = angle of incidence and
            θ2 = angle of refraction 
            k = constant

(sinθ1)/(sinθ2) = k
sinθ2 = k/sinθ1
         = k/sin25
         = k/0.422618261
         = 2.366k

The angle of refraction, θ2 = anti-sin(2.366k)
       

4 0
3 years ago
Let <img src="https://tex.z-dn.net/?f=p%3Dx%5E%7B2%7D%2B6" id="TexFormula1" title="p=x^{2}+6" alt="p=x^{2}+6" align="absmiddle"
Wewaii [24]

Answer:

Hello There. ☆~---~--___●♡●__~--☆ Since p = x² - 7, you can substitute/plug in p for x² - 7

So:

(x² - 7)² - 4x² + 28 = 5

(p)² - 4x² + 28 = 5   You can factor out -4 from (-4x² + 28)

p² - 4(x² - 7) = 5        Plug in p

p² - 4p = 5        Subtract 5

p² - 4p - 5 = 0  And, your correct answer is C.

Hope It Helps!~

ItsNobody~ ☆

4 0
4 years ago
I got 10.6 am i wrong?
lubasha [3.4K]

Answer:

15.3

Step-by-step explanation:

because 15 is the number I think

7 0
3 years ago
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