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2 years ago

What is the value of g(-3) if f(x)=2x-1 and g(x)=-x+1?

Mathematics

1 answer:

zalisa [80]2 years ago

7 0

Answer:

it's answer is 4

Step-by-step explanation:

given

g(x) = - x + 1

g(-3) = -(-3) + 1

= 3 + 1

Hope it will help you :)❤

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You roll 4 fair, distinguishable, six-sided dice. What is the probability of rolling :______

Vikentia [17]

Answer:

a)0.25

b)0.375

Step-by-step explanation:

Possible outcomes when dice are rolled : 1 ,2 ,3,4,5 ,6

Even= 2,4,6

Odd = 1 ,3 , 5

Probability of getting even = $\frac{3}{6}=\frac{1}{2}$

Probability of getting odd = $\frac{3}{6}=\frac{1}{2}$

4 dices are rolled together

a)P(3 even and 1 odd numbers)

P(3 even and 1 odd numbers)= $^4C_3 (\frac{1}{2})^3 (\frac{1}{2})^1$

P(3 even and 1 odd numbers)= $\frac{4!}{3!1!} (\frac{1}{2})^3 (\frac{1}{2})^1 =0.25$

b)P(2 even and 2 odd numbers)

P(2 even and 2 odd numbers)= $^4C_2 (\frac{1}{2})^2 (\frac{1}{2})^2$

P(3 even and 1 odd numbers)= $\frac{4!}{2!2!} (\frac{1}{2})^2 (\frac{1}{2})^2$ =0.375

6 0

2 years ago

Simplify this expression, and leave your answer in scientific notation: 4 x 10^6/2 x 10^8

Anna007 [38]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

*Quadratic equations*<br>solve<br>(i) (x+3)(x-4)=0<br><br>(ii) (2x-3)(x-1) =0

Ivanshal [37]

Answer:

(i) (x+3)(x-4)=0

x+3= 0 ⇒ x= -3
x-4= 0⇒ x= 4

(ii) (2x-3)(x-1) =0

2x-3= 0 ⇒ 2x=3 ⇒ x= 3/2
x- 1= 0 ⇒ x= 1

3 0

2 years ago

How do I convert 64 oz to lb

rewona [7]

Always remember that unit labels cancel like number do and conversion problems will be simple....

64oz(lb/16oz)=4 lb

4 0

2 years ago

Read 2 more answers

X^2=4x-15 solve with Quadratic formula

bulgar [2K]

Answer:

$x=2+i\sqrt{11}$

$x=2-i\sqrt{11}$

Step-by-step explanation:

we have

$x^{2} =4x-15$ -------> $x^{2}-4x+15=0$

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}-4x+15=0$

$a=1\\b=-4\\c=15$

substitute in the formula

$x=\frac{-(-4)(+/-)\sqrt{-4^{2}-4(1)(15)}} {2(1)}$

$x=\frac{4(+/-)\sqrt{16-60}} {2}$

Remember that

$i=\sqrt{-1}$

$x=\frac{4(+/-)\sqrt{-44}} {2}$

$x=\frac{4(+/-)2i\sqrt{11}} {2}$

$x=\frac{4(+)2i\sqrt{11}}{2}=2+i\sqrt{11}$

$x=\frac{4(-)2i\sqrt{11}}{2}=2-i\sqrt{11}$

7 0

3 years ago