Mathematics College

PLEASE HELP ME KSDAKJDSAJDJKS

Answers

Answer 1

Answer: x = 16

Step-by-step explanation:

60x - 60 = 900

60x = 960

60x / 60 = 960 / 60

x = 16

Related Questions

Which function is the inverse of f(x) = -5x - 4

Answers

Answer:

f-¹(x) = -⅕x - ⅘

Step-by-step explanation:

f(x) = -5x - 4 → x = -5y - 4 → 5y = - x - 4 → y = -⅕x - ⅘ → f-¹(x) = -⅕x - ⅘

Suppose the mean income of firms in the industry for a year is 90 million dollars with a standard deviation of 15 million dollars. If incomes for the industry are distributed normally, what is the probability that a randomly selected firm will earn less than 109 million dollars? Round your answer to four decimal places.

Answers

Answer:

0.8980 = 89.80% probability that a randomly selected firm will earn less than 109 million dollars

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Distributed normally, mean of 90 million, standard deviation of 15 million.

This means that [tex]\mu = 90, \sigma = 15[/tex]

What is the probability that a randomly selected firm will earn less than 109 million dollars?

This is the pvalue of Z when X = 109. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{109 - 90}{15}[/tex]

[tex]Z = 1.27[/tex]

[tex]Z = 1.27[/tex] has a pvalue of 0.8980

0.8980 = 89.80% probability that a randomly selected firm will earn less than 109 million dollars

Find the solution of the system of equations.
x+3y= −10
9x+9y= −18

Answers

Answer:

x = 2, y = -4

Step-by-step explanation:

Answer:

Substitution method answer: x=2, y=-4 (2,-4)

Step-by-step explanation:

altitudes of right triangle

Answers

Altitude of a triangle is the perpendicular drawn from the vertex of the triangle to the opposite side. Also, known as the height of the triangle, the altitude makes a right angle triangle with the base.

What is the 6th term of (y-3)^8

Answers

This answer ⬆

Sorry if wrong :)

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Jay has 6,200 beads. He is making bracelets with 9 beads each. How many bracelets can he make? How many beads will be left?

Answers

688 and he will have 8 beads left

Answer: He can make 688 beads, and 8 beads will be left.

Step-by-step explanation:

First, you need to divide 6,200 by 9.

6,200 ÷ 9 = 688 R8.

688 will be the number of bracelets he can make, and the remainder, 8, will be the leftover beads because he doesn't have enough to make another bracelet.

For the labels, it says, "How many bracelets can he make?" and," How many beads will be left?"

The answers will be: 688 bracelets;8beads

Equation : 6,200÷9=x 6,200÷9=688 R8 x=688 bracelets;8 beads

please help i d don't know i would really appreciate your help

Answers

Answer:

Step-by-step explanation:

hello there!

Remember all of the angles in a triangle will add up to equal 180 so to find the missing angle we subtract the given angles from 180

180 - 90 - 45 = 45 so the missing angle would equal 45

With one method of a procedure called acceptance sampling, a sample of items is randomly selected without replacement and the entire batch is accepted if every item in the sample is okay. The ABC Electronics Company has just manufactured 2100 write-rewrite CDs, and 60 are defective. If 3 of these CDs are randomly selected for testing, what is the probability that the entire batch will be accepted

Answers

Answer:

0.9167 = 91.67% probability that the entire batch will be accepted

Step-by-step explanation:

The CDs are chosen without replacement, which means that the hypergeometric distribution is used.

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

2100 write-rewrite CDs, and 60 are defective.

This means, respectively, that [tex]N = 2100, k = 60[/tex]

3 of these CDs are randomly selected for testing

This means that [tex]n = 3[/tex]

What is the probability that the entire batch will be accepted?

Probability of none defective, so P(X = 0).

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]

[tex]P(X = 0) = h(0,2100,3,60) = \frac{C_{60,0}*C_{2040,3}}{C_{2100,3}} = 0.9167[/tex]

0.9167 = 91.67% probability that the entire batch will be accepted

Solve for the value of x and y
5y 2x 40

Answers

Answer:

x=25 =18

Step-by-step explanation:

Right angle =90°

you are given 40, therefore 2x has to equal up to 50.

2x=50 divide both sides by 2

x=25

straight line=180°

you are given 90, therefore 5y has to equal to 90.

5y=90

divide both sides by 5

y=18

X is equal to 25
Y is equal to 18

Evaluate the expression: 2 ⋅ 6^2 *

Answers

2*36=64
Thank you hope this helps

Answer:

Step-by-step explanation:

First square 6.

6^2=36

Then multiply 26 by 2.

2*36=72

NO LINKS WILL MARK BRAINLIEST

Answers

Answer:

5x3=15

6x4=24

24+15=39

Step-by-step explanation:

A is correct i think!

Answer:

39 cm

Step-by-step explanation:

PLEASE DO AS MUCH AS YOU CAN! THANKS!

Answers

Answer:

1. 2x+20

2. 8x-40

3. 7x+21

4. 8x-4

5. 15x+5

6. 12x+15

7. 20x-50

Answer:

m>3/4

Step-by-step explanation:

Add -13/8 to both sides:

6/8<m

Simplify:

m>3/4

which is not a common multiple of 4 and 9

Answers

5 I think.

Step-by-step explanation:

A function is shown below.

g(x)=19.60+1.74x

What is the value of g(30)?

Answers

Answer:

g(30) = 71.8

Step-by-step explanation:

g(30) = 19.6 + 1.74(30)

The value of the g(30) is 71.8 if the function is g(x) = 19.60 + 1.74x

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have a function:

g(x)=19.60+1.74x

Plug x = 30

g(30) = 19.60+1.74(30)

g(30) = 19.60 + 52.2

g(30) = 71.8

Thus, the value of the g(30) is 71.8 if the function is g(x) = 19.60 + 1.74x

Learn more about the function here:

brainly.com/question/5245372

#SPJ2

These are numbers that cannot be written as fractions, numbers with decimals that do not end or repeat. Example: π, 2.345643.....,

Answers

Answer:

These types of numbers are commonly referred to as "irrational numbers".

Step-by-step explanation:

Solve the right triangle
Round your answer to the nearest tenth

Answers

Answer:

B = 40°

a = 23.0

b = 19.3

Step-by-step explanation:

✔️B = 180° - (90° + 50°) => sum of triangle

B = 40°

✔️Reference angle = 50°

Opp = a

Hypotenuse = 30

Adjacent = b

Find a by applying the trigonometric function, SOH:

Sin 50 = Opp/Hyp

Sin 50 = a/30

30 × Sin 50 = a

23.0 = a

a = 23.0 (nearest tenth)

To find b, apply CAH:

Cos 50 = Adj/Hyp

9 (16x - 3)

144x - 27

What is 3000×3000 4000

Answers

Answer:

I think the answer is 12,0000

Answer:

3000x3000=9,000,000

Step-by-step explanation:

3x3x1,000,000

Enter the number that makes the equation true

0.02 + 5/100= ______ / 100 + 5/100

Answers

Answer:

Step-by-step explanation:

0.02 = 2/100 so the answer is 2

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