Outcome 0 1 2 3 Probability 0.25 0.25 0.25 0.25 Which is the expected value of the random variable with the given probability distribution? a. 0 c. 1.5 b. 1 d. 2 Please select the best answer from the choices provided

Answer:

160 units²

Step-by-step explanation:

Surface area of the square pyramid = a² + 2al

Where,

a = side length of the square = 8

l = slant height of the triangular face = 6

Plug in the values

Surface area of the square pyramid = 8² + 2*8*6

= 64 + 96

= 160 units²

Step-by-step explanation:  6 4 17 26

1) BC = 10    twice DC

2) x = 174    360 - 46 - 66 - 74 = x

3) x = 125    360 - 47 - 98 - 90 = x

Answer:

Step-by-step explanation:

Container A = 75.36 x 17 = 1,281.12

Container B = 62.8 x 18 = 1,130.4

1,281.12 - 1,130.4 = 150.72 is left in container A.

So, 1,130.4 was taken out of it.

1,281.12 divided by 1,130.4 = 1.13

move the decimal over two to the right. Or times it by 100.

113%

Answer:

Step-by-step explanation:

[tex]sin({\alpha\over{2}})=\pm\sqrt{{1-cos(\alpha)\over{2}}}\Rightarrow sin({30\over{2}})=+\sqrt{{1-{\sqrt{3}\over{2}}\over{2}}}={\sqrt{{2-\sqrt{3}}}\over{2}}[/tex]

[tex]cos({\alpha\over{2}})=\pm\sqrt{{1+cos(\alpha)}\over{2}}=+\sqrt{{1+{\sqrt{3}\over{2}}\over{2}}}={\sqrt{{2+\sqrt{3}}}\over{2}}[/tex]

substituting we get:

[tex]tg(15)=\sqrt{{2-\sqrt{3}}\over{2+\sqrt{3}}}[/tex]

Answer:

Directions: Write the new coordinates for each point or figure.

Sample Question:

Point F has the coordinates (-9,6). What are the coordinates of its image point after the translation of six units down and three units to the left?

Answer:

The coordinates of its image point after the translation are (-12, 0).

Explanation: When you look at an ordered pair the x number comes first, followed by the y number (x,y). Moving a point left or right changes the x number. Moving a point up or down changes the y number. Left and down require subtraction, while right and up require addition. In the sample, we had to go 3 units to the left, -9 - 3 = -12. We also had to go 6 units down, so 6 - 6 = 0.

Point Q has the coordinates (9,5). What are the coordinates of its image point after a translation of six units up and three units to the right?

Point P has the coordinates (3,4). What are the coordinates of its image point after a translation of 8 units down and 5 units to the left?

Point Z has the coordinates (10,7). What are the coordinates of its image point after a translation of six units down and three units to the right?

Point Y has the coordinates (0,-4). What are the coordinates of its image point after a translation of 10 units up and 3 units to the left?

Point X has the coordinates (3,-8). What are the coordinates of its image points after a translation of 11 units down and 10 units to the right?

Answer:

(-10,5)

Step-by-step explanation:

9514 1404 393

Answer:

  40.56 ft

Step-by-step explanation:

The length of the semicircle of diameter 8 ft is ...

  (1/2)(π)(d) = (π/2)(8 ft) = 4π ft ≈ 4×3.14 ft = 12.56 ft

Then the sum of the lengths of all of the sides of the figure is ...

  P = 10 ft + 8 ft + 10 ft + 12.56 ft = 40.56 ft

The perimeter of the figure is about 40.56 ft.

Answer:

Step-by-step explanation:

1) the triangle on the right is half of an equilateral one, so the minor leg is 9

the left one has the two legs congruent

so we have

2x^2 = 81

x^2 = 81/2

x = 9/√2 = 9/2 √2 (at the numerator)

2) the top triangle has the congruents leg

hypotenuse^2 = 2(6√6)^2

hypotenuse^2 = 2(216)

hypotneuse^2 = 432

hypotenuse = √2^4 * 3^2 * 3

hypotenuse = 12√3

the triangle in the bottom is half of the an equilateral one, so

x = 12√3 * 2 = 24√3

3) the left triangle has congruent legs

7^2 = leg^2 + leg^2

49 = 2leg^2

leg^2 = 49/2

leg = 7/√2 = (7√2)/2

the right triangle is half of an equilateral one

x = 7√2/2 * √3 =  7/2 √6 (at the numerator)

4) the rifht triangle has two congruent legs

hy^2= 2(7√6)^2

hy^2 = 2(294)

hy^2 = 588

hy = √2^2 * 7^2* 3

hy = 14√3

the triangle on the left is half of an equilteral one: so

x = 14

Answer:

x=14.555

Step-by-step explanation:

Answer:

remember to round and do 14.6 thank me later

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The scale is 5/4

Because:

Let's take

20/16 = 5/4

20/16 = 5/4

15/12 = 5/4

Answer:

5/2 or 5:2 ratio is the reduced fraction from the scale factor A to B.

Answer:

y = -2/3 x +2

Step-by-step explanation:

2x+3y = 12

First find the slope by putting it in slope intercept form y= mx+b where m is the slope and b is the y intercept

Subtract 2x from each side

3y = -2x+12

Divide by 3

3y/3 = -2/3x +12/-3

y = -2/3x -4

The slope is -2/3

Parallel lines have the same slope

The only line with the same slope is y = -2/3 x +2

The only line

Answer:

43,24$

Step-by-step explanation:

46$ — 100%

x$  — 6%

46 · 6/100

2,76$

46$ - 2,76$ = 43,24$

I don't know if this helps

Answer:

I don't know yet haheuehehheejejejej

Answer:

Step-by-step explanation:

area of square=l^2

16=l^2

[tex]\sqrt{16[/tex] =l

4=l

therefore the length of square room is 4 m

Answer:

length , l = 4m

Step-by-step explanation:

[tex]Area \ of \ square = l^2\\ 16 = l^2\\\\l = \sqrt{16} = 4m[/tex]

Answer:

[tex] \frac{b ^{4} }{a ^{2}c ^{2} } [/tex]

Step-by-step explanation:

when dividing subtract the exponents

Answer:

Step-by-step explanation:

either do 23 x23

or

23 x 16 ( do this first )

Answer:31r

Step-by-step explanation:

Formula=πd

22/7 × 100

3.14 × 100

314 cm square

Answer:

6 or 2

Step-by-step explanation:

f(x) = 0.5|x - 4| + 6

0.5|x - 4| + 6 = 7

0.5|x - 4| = 7-6

0.5|x - 4| = 1

|x - 4| = 2

x -4 = ± 2

x-4 = 2 ==> x = 6

x-4 = -2 => x = 2

so the value of x = 6 or 2

Answer:

Step-by-step explanation:

it is d) 162

Answer:

The answer is d 162cm^2

Step-by-step explanation:

Hope this helps :)

Answer:

Annual Salary = $85,540

Step-by-step explanation:

There are 52 weeks in a year.

If bi weekly salary is $3290

Then you get paid 26 times.

Therefore annual salary = 26 × 3290 =$85,540

Answer:

$78,960 is your annual salary

Step-by-step explanation:

By saying biweekly, if you mean that your gross salary for every two weeks is $3,290, then your annual salary will be roughly about $78,960

There are about 4 weeks in a month and you're getting your gross salary biweekly. So $3,290 times 2 equals $6,580. This is your monthly gross salary.

Now, multiply $6,580 times 12 to find out your annual salary because there are 12 months in a year. $6,580 times 12 equals $78,960. This is your annual salary

Hope this helps

9514 1404 393

Answer:

  C.  x < 0

Step-by-step explanation:

The curve opens downward and has its vertex is at x=0, so the largest increasing interval will be the one that has its right end at x = 0⁻.

  x < 0

Answer:

C. x<0

Step-by-step explanation:

Answer:

(assuming simple interest)

I'll setup the problem and you can do the computation

Step-by-step explanation:

The formula for simple interest:

I = P*r*t

P = deposits

r = interest rate per period (a year)

t = number of periods

P = Php 23,200

r = 0.06

t = 1

If you have questions, send me a comment 

Answer:

22.33

Step-by-step explanation:

9514 1404 393

Answer:

  9c² -4p²

Step-by-step explanation:

The product of a sum and difference of the same two terms is the difference of their squares:

  (3c +2p)(3c -2p) = 3c(3c -2p) +2p(3c -2p)

  = (3c)² -6cp +6cp -(2p)²

  = (3c)² -(2p)² = 9c² -4p²

Answer:

[tex] {x}^{2} - {y}^{2} [/tex]

difference of two squares:

[tex](x + y)(x - y)[/tex]