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anygoal [31]
3 years ago
8

Does anyone know this?

Mathematics
2 answers:
monitta3 years ago
8 0
The answer should be 101.
andreyandreev [35.5K]3 years ago
5 0

Answer:

Just a guess but 101

Step-by-step explanation:

90-79=11. 90+11=101

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Can anyone help me please if not its okayy!!:)​
NISA [10]
1. a (n) = -0.6(n) + 14.6
2. a (12) =7.4 sec
3. 6th race

Would you like an explanation?
3 0
3 years ago
I need to solve this.
Svetradugi [14.3K]

Answer:

3

3

5

2

Step-by-step explanation:

What kind of math is this and what grade are you in?

5 0
3 years ago
Read 2 more answers
What is the greatest common factor of the terms in the excerpt 21 x -18 x + 28 x y
Mandarinka [93]
X(21-18+28y). axis the greatest common factor
3 0
3 years ago
A random sample of n people selected from a large population will be asked whether they have read a novel in the past year. Let
kozerog [31]

Answer:

b. A binomial variable with 25 independent trials

Step-by-step explanation:

The conducted experiment is binomial experiment because outcome can be divided into success or failure. The success would be the people who read novel in the past year and also responses are independent of each other. We have to find the number of trials n in the given problem.

we are given that variance of R=6 and p=probability of success=0.4.

We know that variance of binomial distribution is

Variance=npq

where q=1-p=1-0.4=0.6.

By putting the values in variance formula, we can get the value of n.

6=n*0.4*0.6

6=0.24*n

n=6/0.24

n=25

Hence, random variable R is a binomial variable with 25 independent trials.

4 0
3 years ago
A certain company manufactures skateboards and rollerskates. It takes them 2 units of labor and 1 unit of materials to produce a
Alisiya [41]

Answer: The company should produce 7 skateboards and 16 rollerskates in order to maximize profit.

Step-by-step explanation: Let the skateboards be represented by s and the rollerskates be represented by r. The available amount of labour is 30 units, and to produce a skateboard requires 2 units of labor while to produce a rollerskate requires 1 unit. This can be expressed as follows;

2s + r = 30 ------(1)

Also there are 40 units of materials available, and to produce a skateboard requires 1 unit while a rollerskate requires 2 units. This too can be expressed as follows;

s + 2r = 40 ------(2)

With the pair of simultaneous equations we can now solve for both variables by using the substitution method as follows;

In equation (1), let r = 30 - 2s

Substitute for r into equation (2)

s + 2(30 - 2s) = 40

s + 60 - 4s = 40

Collect like terms,

s - 4s = 40 - 60

-3s = -20

Divide both sides of the equation by -3

s = 6.67

(Rounded up to the nearest whole number, s = 7)

Substitute for the value of s into equation (1)

2s + r = 30

2(7) + r = 30

14 + r = 30

Subtract 14 from both sides of the equation

r = 16

Therefore in order to maximize profit, the company should produce 7 skateboards and 16 rollerskates.

6 0
3 years ago
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