Question

Mathematics

1 answer:

Alika [10]2 years ago

3 0

The domain is the set of all the values of x so it’s {-7,-1,11,1}

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15 POINTS! <br> IMAGE ATACHED

Marta_Voda [28]

Answer:

Step-by-step explanation:

T think its the 3rd option down

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4 years ago

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Change to standard form y=1/3x+6

Serhud [2]

Answer:

the answer is x - 3y = -12

6 0

4 years ago

Let f(x)=4x+1 and g(x)3x+k find value of k if fog(x)=gof(x)

kogti [31]

Answer:

$\huge\boxed{k=\dfrac{2}{3}}$

Step-by-step explanation:

$f(x)=4x+1\\\\g(x)=3x+k\\\\(f\circ g)(x)=f\bigg(g(x)\bigg)=4(3x+k)+1=(4)(3x)+(4)(k)+1=12x+4k+1\\\\(g\circ f)(x)=g\bigg(f(x)\bigg)=3(4x+1)+k=(3)(4x)+(3)(1)+k=12x+3+k\\\\(f\circ g)(x)=(g\circ f)(x)\iff12x+4k+1=12x+3+k\qquad|\text{cancel}\ 12x\\\\4k+1=3+k\qquad|\text{subtract 1 from both sides}\\\\4k=2+k\qquad|\text{subtract}\ k\ \text{from both sides}\\\\3k=2\qquad|\text{divide both sides by 3}\\\\k=\dfrac{2}{3}$

5 0

3 years ago

Write all of the numbers that round to 50

Phantasy [73]

45, 46, 47, 48, 49, 50, 51, 52, 53, 54

8 0

3 years ago

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Pleaseee help last question

Vladimir [108]

P(Larger or blue) = 7/10. In a bag we have blue and red marbels, which are large and small as in the table shown in the image, the probability of taking a large or blue marble is 7/10.

The key to solve this problem is find the probability of the union events using the equation P(A∪B) = P(A) + P(B) - P(A∩B).

For this problem we have P(Large or Blue) = P(Large) + P(Blue) - P(Large and Blue). The total of the large ones is 25 and the small ones is 15, meaning that the sum of both is 40. P(large) = 25/40, P(Blue) 20/40, and P(Large and Blue) = 17/40

P(Large or Blue) = 25/40 + 20/40 - 17/40 = 28/40 dividing by 4 both terms of the fraction.

P(large or Blue) = 7/10

3 0

4 years ago