y = cos 4(x) period
​

Answer:

As a decimal it's 3.75 and as a fraction it's 3/80

Hopefully that helped :)

Using the binomial distribution, it is found that the probabilities are given as follows:

a) 0.2036 = 20.36%.

b) 0.0011 = 0.11%.

The formula is:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

The parameters are:

In this problem, the parameters are given as follows:

p = 0.95, n = 5.

Item a:

The probability is P(X = 4), hence:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 4) = C_{5,4}.(0.95)^{4}.(0.05)^{1} = 0.2036[/tex]

Item b:

The probability is:

P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2).

Then:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{5,0}.(0.95)^{0}.(0.05)^{5} \approx 0[/tex]

[tex]P(X = 1) = C_{5,1}.(0.95)^{1}.(0.05)^{4} \approx 0[/tex]

[tex]P(X = 2) = C_{5,2}.(0.95)^{2}.(0.05)^{3} = 0.0011[/tex]

Then:

P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0 + 0 + 0.0011 = 0.0011.

More can be learned about the binomial distribution at https://brainly.com/question/24863377

#SPJ1

Answer:

turn it into an equation

since the total number of students is 63 and for every 3 boys are 4 girls

3x + 4x = 63

7x = 63

x = 63/7

x= 9

to get the number of boys

3 x 9 = 27

therefore the number of boys is 27

Answer:

Amber

Step-by-step explanation:

Lets pretend they both started at 10

Amber moved back 3 places 3 times, (1), then moved up 5 places (6)

Will moved back 4 spaces twice (2) then moved up 3 places (5)

6 > 5, therefore the answer is Amber

Answer:

[tex]R=\frac{T}{LS}-\frac{3}{S}[/tex]

Step-by-step explanation:

Answer:

1/8 of the cake goes to each person

Step-by-step explanation:

Answer:

Each person will get 1/4 of the part that is left. Out of the whole cake each person got 1/8 of the cake.

Not sure if this is the answer you were looking for...the question wasn't stated.

Answer:

t = 0

Step-by-step explanation:

(7t - 2) - (-3t + 1) = -3(1 - 3t)

because you can not do anything inside the parantheses, you distribute. there aren't any numbers on the left side of the parantheses on the left side of the equation so we just imagine the number 1. on the right side of the equation, just distribute normally

[ 1(7t - 2) -1(-3t + 1) = -3(1 - 3t) ]

will be

7t - 2 + 3t - 1 = -3 + 9t

add like terms

10t - 3 = -3 + 9t

subtract 9t from both sides

t - 3 = -3

add 3 to both sides

t = 0

Step-by-step explanation:

PEMDAS

parentheses, exponents, multiplication, division, addition, subtraction.

first multiply:

2×3=6

6+4-5

Now add

6+4=10

Now subtract

10-5=5

5 is the answer

I hope this helped! :)

SOLVING STEPS...

FIRST CALCULATE 2 × 3

SO IT'S 6

NOW THE FORM IS

[tex]6 + 4 - 5[/tex]

CALCULATE THE SUM OF DIFFERENCE

SO THE ANSWER IS

[tex]5[/tex]

GAVE ME THE BRAINLIEST IF MY ANSWER WAS HELPFUL...

Answer:

The integers are  9 and 22

Step-by-step explanation:

Step one:

given data

let the smaller integer be x

and the bigger be y

x+y=31-----------1

so

y=(2x+4)

Step two:

put y=(2x+4 in equation 1 we have

x+2x+4=31

3x+4=31

3x=31-4

3x=27

divide both sides by 3

x=27/3

x=9

the smaller integer is 9

the bigger is 2(9)+4= 18+4=22

Answer:

$12

Step-by-step explanation:

The answer is 12 because 20% of 10 is 2 and 10 plus 2 is 12

Answer:

Part b would be 4 and c would be 5 and d  would be 19

Step-by-step explanation:

So yea do those

Answer:

Ratio is [tex]\frac{9}{6}[/tex]

You can simplify it of course to 3/2

Step-by-step explanation:

Volume of a cube is V = length^3 or l^3

Volume for larger cube = 729 cubic inches

Volume for smaller cube = 216 cubic inches

Surface area is S = 6*l^2

So we just need to find the length of each side of the cube.

We take the cube root for each cube volume since there are three sides.

Larger cube = 729^(1/3) = 9

smaller cube = 216^(1/3) = 6

Ratio is [tex]\frac{9}{6}[/tex]

Answer:

Step-by-step explanation:

48h = m

Answer:

80

Step-by-step explanation:

Answer:

[tex]tan165^0 = -2 + \sqrt{3}[/tex]

Step-by-step explanation:

Given;

tan165⁰

165⁰ is in the second quadrant, and sine is positive in this quadrant, thus tan will be negative.

In second quadrant, tanθ = -tan(180 - θ)

tan165⁰ = -tan(180-165)

tan165⁰ = -tan15⁰

[tex]- tan15^0 = -tan(60 - 45)\\\\ tan(\alpha - \beta) = \frac{tan \alpha -\ tan \beta}{1 + tan \alpha tan \beta}\\\\ -tan(60 - 45) = -(\frac{tan 60 - tan 45}{1+tan60tan45} )\\\\ -(\frac{tan 60 - tan 45}{1+tan60tan45} )= -(\frac{\sqrt{3} \ - 1}{1+ \ \sqrt{3} } ) = \frac{1 \ -\sqrt{3} }{1+ \ \sqrt{3} }\\\\\frac{1 \ -\sqrt{3} }{1+ \ \sqrt{3} } =( \frac{1 \ -\sqrt{3} }{1+ \ \sqrt{3} })(\frac{1 - \ \sqrt{3}}{1 - \ \sqrt{3}} ) = \frac{1-\sqrt{3} -\sqrt{3} \ +\ 3 }{1\ -\ 3} = \frac{4-2\sqrt{3} }{-2}[/tex]

[tex]\frac{4-2\sqrt{3} }{-2} = -2 + \sqrt{3}[/tex]

Therefore, [tex]tan165^0 = -2 + \sqrt{3}[/tex]

Answer:

- sqrt(7-4sqrt(3)) = -0.26794

tan165º = -0.26794

Step-by-step explanation:

On EDG

Answer:

D

Step-by-step explanation:

0 is in the middle and 2 will be at the left and 3 at the right.

Answer:

1 Cup of Water

Step-by-step explanation:

Well, this is pretty simple.

This questions topic is known as Equivalent Ratios.

To find an equivalent ratio, add or divide the numbers by the same amount.

Let's do it together.

4:2 is the ratio we already have. If we have to make it have 2 cups of flour, let's divide 2 on both sides.

Since 4 divided by 2 is 2, and 2 divided by 2 is 1,

We can confirm that you would need to put in 1 cup of water.

Answer:

fuxudificldid7dici hahahaahahha

Answer:I’m not sure but I thinks it either $250 or $325

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Answer:

the square root of 4 is 2

Answer:

can you like give options or?-

Step-by-step explanation:

Answer:

13 children

Step-by-step explanation:

What I did first is ad 6 and 5(which is 11). What I did next is subtract 11 from 24 (which is 13) Please vote brainliest need it to rank up

Answer: 932,400

Step-by-step explanation:777 x 1200

Answer:

c, e, g are your answers.

Step-by-step explanation:

polygons show that 1 and 4 are congruent. So the answers are anything involving polygons # 1 & 4

Answer:

#5: 60

#6:55

#7:70

#8:55

11.81

Step-by-step explanation:

#5

∠CFD=60 (all the angles in an equilateral triangle are 60)

#6

∠AFD=150=∠AFB+∠BFC+∠CFD

∴150=∠AFB+35+60

∴∠AFB=55

#7

An isosceles triangle has one unique vertex angle and two equal base angles. All the angles in a triangle add up to 180. We know the base angles (55), so:

180 = ∠ABF + 2(55)

∴∠ABF = 70

#8

∠A=∠AFB = 55 (base angles of an isosceles triangle)

11. An isosceles triangle has one unique vertex angle and two equal base angles. All the angles in a triangle add up to 180. Vertex angle is 18, so the sum of both bases is 180-18=162. Therefore, each base angle is 81.

Answer:

40%

Step-by-step explanation:

6x100=600/15=40

Answer:

0.4 hrudyevdieubdbdj

Answer:

d= 5/3

d=1.6

d=1 2/3

i hope this helps

Step-by-step explanation:

Answer:

0.02 or 1/50...AR n-1..... so A is the unknown

[tex] = > \frac{10}{14} \\ [/tex]

[tex] = > \frac{5}{7} \\ [/tex]

[tex] = > 0.71428[/tex]