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3 years ago

A number written in the form of a + bi is called a

Mathematics

1 answer:

butalik [34]3 years ago

4 0

It is called a complex number.

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6) Find the surface area of the square pyramid. 8 cm 5 cm

kondaur [170]

Answer:

the formula for surface area of a triangle is s=1/2ph=b

Step-by-step explanation:

p = perimeter of pyramid

h = height of each triangular face

BIG B = Area of base of pyramid

Solve!

i hope this helped im only in the 8th grade, so i am just learning this

4 0

3 years ago

On each turn of the knob, a gumball machine is equally likely to dispense a red, yellow, green or blue gumball, independent from

laiz [17]

Answer:

$P(R_2Y_2C_2B_2) = 0.03845$

Step-by-step explanation:

Given

$Balls = 4$ --- [R, Y, C and B]

$Turns = 8$

Required

$P(R_2Y_2C_2B_2)$

Since each of the 4 balls are equally likely, their probability is:

$P(R) = P(Y) = P(C) = P(B) = \frac{1}{4}$

From $P(R_2Y_2C_2B_2)$ , we have:

$R = Y = C = B = 2$

$Total = 8$

So, the total arrangement of the 8 balls is:

$Arrangement = \frac{8!}{2!2!2!2!}$

$Arrangement = \frac{40320}{2*2*2*2}$

$Arrangement = \frac{40320}{16}$

$Arrangement = 2520$

The individual probability of each ball, when put together is

$Probability = P(R)^2 * P(Y)^2 * P(C)^2 * P(B)^2$

$Probability = (1/4)^2 *(1/4)^2 *(1/4)^2 *(1/4)^2$

$Probability = (1/16) *(1/16) *(1/16) *(1/16)$

$Probability = \frac{1}{65536}$

Lastly:

$P(R_2Y_2C_2B_2) = Arrangement * Probability$

$P(R_2Y_2C_2B_2) = 2520 * \frac{1}{65536}$

$P(R_2Y_2C_2B_2) = \frac{2520 }{65536}$

$P(R_2Y_2C_2B_2) = 0.03845$

8 0

2 years ago

Plz help! Big points!

Mama L [17]

Answer:

1209

Step-by-step explanation:

v= pi* r^2* h r= d/2

soda:

d = 2 r = 1

h = 5

grabage:

d = 24 r = 12

h = 42

volume G: 19000.35

volume S: 15.71

volume G/ Volume S = # of soda cans

8 0

3 years ago

Whats her errors and whats the soulution

kondor19780726 [428]

Answer:

she messed up at -17=34x

Step-by-step explanation:

she added 8x to each side but she was actually supposed to subtract

6 0

2 years ago

Read 2 more answers

Plz help been stuck on it for awhile

sergejj [24]

Step-by-step explanation:

Transitive property of Angle Congruence

5 0

2 years ago