4. What is the circumference of a circle with a radius of 4 cm?

Answer:

15+9 is 3(5+3)

8+10 is 2(4+5)

6+4 is 2(3+2)

10+12 is 2(5+6)

Answer:

$30.40

Step-by-step explanation:

to find out how much 20 candy bars would cost, first, we have to find out how much 1 candy bar costs. we do this by dividing $19.76 by 13.

$19.76 ÷ 13 = $1.52

so now we know that one candy bar costs $1.52. now, we multiply this value to 20, to know how much 20 candy bars cost. therefore, we get:

20 × $1.52 = $30.40

Answer:

16 percent

Step-by-step explanation:

75 is the old value and 87 is the new value. In this case we have a positive change (increase) of 16 percent because the new value is greater than the old value.

The answer is 1/5^12.

Multiply the -6 by 2 to get 5^-12. Then, to make the exponent positive, move it to the denominator to get your answer, 1 over 5^12.

Answer:

$ 2,200 for 8%, $ 1,300 for 12%

Step-by-step explanation:

I=PRT

Let Bank 1 be x

332= x (8%) + (3,500-x) 12%

332= x (0.08) + (3,500-x) 0.12   change the percent to decimal

332= 0.08x + 420 - 0.12x

0.04x= 420-332

x= [tex]\frac{88}{0.04}[/tex]

x= 2,200 (Bank 1)

Bank 2= 3,500-Bank 1

Bank 2= 3,500- 2,200

Bank 2= 1,300

Answer:

$80

Step-by-step explanation:

Answer:

a.) X  ≈ N (0, 12)

b.) Y ≈  exp(2)

c.) The given distribution is not defined.

d.) Not a standard form of any distribution .

Step-by-step explanation:

Given - In parts (a)−(d) below, either use the information given to determine

            the distribution of the random variable, or show that the information

            given is not sufficient by describing at least two different random

            variables that satisfy the given condition.

To find - (a) X is a random variable such that Mₓ(t) = [tex]e^{6t^{2} }[/tex] when |t| < 2.

              (b) Y is a random variable such that  [tex]M_{Y}[/tex](t) = [tex]\frac{2}{2 - t}[/tex] for t < 0.5.

              (c) Z is a random variable such that [tex]M_{Z}[/tex](t) = ∞ for t ≥ 5.

              (d) W is a random variable such that [tex]M_{W}[/tex](2) = 2

Proof -

a.)

As we know that the moment generating function of normal distribution is given by

Mₓ(t) = [tex]e^{ut + \frac{1}{2}t^{2} \sigma^{2}}[/tex]

Now,

Mₓ(t) = [tex]e^{6t^{2} }[/tex]

       = [tex]e^{0(t) + \frac{12}{2} t^{2} }[/tex]

⇒μ = 0, σ = 12

Nd it is represented by

X  ≈ N (0, 12)

b.)

Moment generating function of exponential function is given by

[tex]M_{Y}[/tex](t) = [tex]( 1 - \frac{t}{\theta})^{-1}[/tex]

Now,

 [tex]M_{Y}[/tex](t) = [tex]\frac{2}{2 - t}[/tex] for t < 0.5.

          = [tex]\frac{1}{\frac{2 - t}{2} }[/tex]

          = [tex]\frac{1}{1 - \frac{t}{2} }[/tex]

          = [tex]( 1 - \frac{t}{2} )^{-1}[/tex]

And it is represented by

Y ≈  exp(2)

c.)

Z is a random variable such that [tex]M_{Z}[/tex](t) = ∞ for t ≥ 5.

The given distribution is undefined.

d.)

[tex]M_{W}[/tex](2) = E([tex]e^{2w}[/tex] )

           = [tex]\int\limits^{-\infty}_{\infty} {e^{2w} f(w) } \, dw[/tex]

          = 2

It is not the standard form of any distribution.

Answer:

I think false

Step-by-step explanation:

Answer:

x = 361/32

Step-by-step explanation:

I'm assuming that "8 x/2" is a mixed number.

Answer:

Step-by-step explanation:

Answer:

I think angel 2 and angle 3

and angel 5 and angle 8

are the pairs of vertical angle.

hope it helps.

Answer:

518

Step-by-step explanation:

14 x 74 = 1036      1036 / 2  = 518

( really need brainliest , hope it helps )

( first )

Answer:

Step-by-step explanation:

Make sure the denominators are the same.

Subtract the numerators. Put the answer over the same denominator.

Simplify the fraction (if needed).

Answer:

Step-by-step explanation:

x + y = 6 -------------(I)

    y = 6 -x

2.5x + 3.25y = 15.75 -------------(II)

substitute y = 6 - x in equation (II)

2.5x + 3.25*(6 - x) = 15.75      {Distributive property: a(b +c) =a*b + b*c}

2.5x + 3.25*6 - x * 3.25 = 15.75    

2.5x + 19.5 - 3.25x = 15.75

2.5x - 3.25x + 19.5 = 15.75    {Combine like terms}

-0.75x +  19.5 = 15.75

            -0.75x=15.75 - 19.5

           -0.75x = -3.75

                  x = -3.75/-0.75

                  x = 5

Plugin x = 5 in (I)

5 + y = 6

     y = 6 - 5

    y = 1

Answer:

14 / 12 miles or 1 1/6 miles

Step-by-step explanation:

A group of campers walked 4 2/3 miles along a hiking trail.

Distance = 4 2/3 miles

Another group of campers walked 1/4 of that distance with the first group before turning off onto another trail.

That is; 1/4 of 4 2/3 miles

How many miles did the two groups of campers walk with one another ?

This is obtained by solving 1/4 of 4 2/3 miles

Converting 4 2/3 to an improper fraction;

4 2/3 = 14 / 3 Miles

1/4 of 14 / 3

1 / 4 * 14 / 3

= 14 / 12 miles or 1 1/6 miles

Answer:

The last one

Step-by-step explanation:

Answer:

so what was it because i need help NEVER MIND ITS 211.95

Step-by-step explanation:

Answer:  211.95 in3

Step-by-step explanation:

This may be more complicated than it looks but here are the odd numbers before nine:

1, 3, 5, 7    

Hope this helps!

Answer: I think it might be A bit Im not sure

Step-by-step explanation:

Answer:

i think its A not suree

Step-by-step explanation:

Answer:

Step-by-step explanation:

6/9+x=7/10

x=7/10-6/9

when adding fractions both denominators must be equal, we’ll make them 90

x=(7/10)(9/9)-(6/9)(10/10)

x=63/90-60/90

x=3/90, the greatest divisor of 3 and 90 is 3 so divide both the numerator and denominator by 3

x=(3/3)/(90/3)

x=1/30

Answer:

thanks for the points

Step-by-step explanation:

Answer:

the answer is (6,2)

Step-by-step explanation:

Hope this helps

Answer:

I think it is B. -3x < - 30, but I might be wrong.

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

since you see that the line goes from 10 and does not include it it would be x<10

or  because we have to flip sign when multiplying negative -3x>-30

so A