Triangle PQR is similar to triangle XYZ. What is the length of side XZ?

Answer:

Mathwords: Expected Value. A quantity equal to the average result of an experiment after a large number of trials. For example, if a fair 6-sided die is rolled, the expected value of the number rolled is 3.5. This is a correct interpretation even though it is impossible to roll a 3.5 on a 6-sided die.

Step-by-step explanation:

hope it helps

Answer:

When you roll a fair die you have an equal chance of getting each of the six numbers 1 to 6. The expected value of your die roll, however, is 3.5.

Step-by-step explanation:

Answer:

x = - 1, x = - 11

Step-by-step explanation:

Given

2| x + 6 | - 4 = 6 ( add 4 to both sides )

2|x + 6 | = 10 ( divide both sides by 2 )

| x + 6 | = 5

The absolute value function always gives a positive result, but the expression inside can be positive or negative, that is

x + 6 = 5 or - (x + 6) = 5

solve both

x + 6 = 5 ( subtract 6 from both sides )

x = - 1

or

- (x + 6) = 5 , that is

- x - 6 = 5 ( add 6 to both sides )

- x = 11 ( multiply both sides by - 1 )

x = - 11

Answer:

y-intercept is (0, -2) and asymptote of y = -2.5

Step-by-step explanation:

If you substitute 0 in for x and simplify, then you will have the y-intercept

y = [tex]\frac{1}{2} (7)^{0} - 2.5 = \frac{1}{2} (1) - 2.5 = \frac{1}{2} - 2.5 = -2[/tex]

The y-intercept is (0, -2)

If the -2.5 were not there, then the graph would have an asymptote at y = 0 or the x-axis

The -2.5 moves the graph down 2.5 units so that y = -2.5 is the asymptote

Therefore, the first answer is correct

Answer:

32.625

Step-by-step explanation:

a square has all equal side so u divieded the amount of she used by 4

Answer:

$678.30

Step-by-step explanation:

Answer:

20 cm

Step-by-step explanation:

1 cm of Tom's drawing is 5 ft of the statue

So his 16 cm drawing is [tex]16\times 5=80\ \text{ft}[/tex]

1 cm of Mary's drawing is 4 ft of the statue

1 ft of the statue is [tex]\dfrac{1}{4}\ \text{cm}[/tex] of the drawing.

So, 80 feet of the statue is [tex]80\times \dfrac{1}{4}=20\ \text{cm}[/tex] of the drawing.

Hence, Mary's drawing is 20 cm tall.

Answer:

A is the answer

Step-by-step explanation:

The answer is A like he said above

Answer:

(44/5, -37/8)

Step-by-step explanation:

Result:

Complex number:

The polar form of z is:

Explanation:

z = −2 + 4i

z = 4.4721 · (cos 117o + i · sin 117o)

The polar form of the complex number z = a + bi is:

z = r · (cos θ + i · sin θ)

where, r is the modulus of z and θ is an argument of z. The moduo for a = −2 and b = 4 is:

r = a2 + b2 = · · · = 4.4721 To find argument θ we use one of the following formulas:

b θ=arctan a ifa>0

b o θ=arctan a +180 ifa<0

θ=90o ifa=0andb>0 θ=270o ifa=0andb<0

Inthisexample: a=−2andb=4so:

θ=arctan a +180

θ=arctan 4 +180o −2

b o

θ = arctan (−2) + 180o θ ≈ 117o

Try this website it’s really helped me!

www.mathportal.org/calculators/complex-numbers-calculator/complex-unary-operations-calculator.php?val1=-2&combo1=1&val2=4&rb1=pol&ch2=useDecimals

Answer:

Step-by-step explanation:

a+bi = -2+4i

arctan(b/a)=arctan(4/-2)=-1.071

Because this falls in quardant 2, you have to add pi

1.071+pi=2.03

I hope this helps.

Answer:

I'm sorry I genuinely don't know

Answer:

.33 for 5

Step-by-step explanation:

Answer:

2r(d-2)

Step-by-step explanation:

Answer:

The answer is I don't know

Answer:

help me first,help me first

Step-by-step explanation:

Answer:

I have no idea sorry

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

it's 0.25 well good luck and i have a joke

Answer:

infinite

Step-by-step explanation:

The line can be represented by the equation y=-2/3x-2 since there are no other lines it would be infinite. if there was a line with the same slope and a different y-intercept the answer would be none as the lines never intersect.  for the equation there are ifinitly many!  

     for example any point that that lone touches is a solutions so there is not one but many answers.

Answer:

[tex]\frac{9}{d}[/tex]

or

9÷d

Hopefully this is what you're looking for.

Answer:

x=3

y=−4

Step-by-step explanation:

Add 2y to both sides of the equation.

x=11+2y

−7x−2y=−13

Replace all occurrences of x with 11+2y in each equation.

−77−16y=−13

x=11+2y

and then you just connect the dots

Answer:

Step-by-step explanation:

x -12 > 0

x > 12

if x > 12   x-12

if x = 12     0

if x < 12     12-x

Answer:

Wish I can help. But I really couldnt solve it. Sorry :(

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

he is steadily going down if you look at the trend you can see a pattern.

is first going 50 down then 100 down hen 50 down again so the correct awnser should be 100

Poloma

2m30sec + 2m30sec + 2m30sec = 7m30sec

Marissa

2m75sec + 2m75sec + 2m75sec = 9m45sec

9m45sec - 7m30sec

Answer = 2m15sec

Answer:

below

Step-by-step explanation:

a. A mile is approximately 1.609 kilometers

b. There are aproximately 0.621 miles in a kilometer

Answer:

4x+5

Step-by-step explanation:

10x + 7 - 6x - 2

4x +5

hope this helps

Answer: no I think the correct answer is 4x+5

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer: 97

Step-by-step explanation:

The diagonal equals the square root of the width squared plus the height squared.

Answer: It would be 16

Step-by-step explanation:

Answer:

the one on the left (the first one)

Answer:

option A

Step-by-step explanation:

the very first image of graph is the one that show the relationship between x and y