MATHEMATICS HIGH SCHOOL

2(X-4)+7=3 ? Which value of x is the solution

Answers

Answer 1

Answer: well ok.. so
2x-8+7=3
2x -1 =
+1 +1
2x=4
x=2 sorry :)

Answer 2

Answer:

2x-8+7=3

2x-1=3

2x=4

x=2

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Bill says that he can add 23 and 40 without regrouping, Do you think Bill is correct? Explain your answer

Answers

Yes, Bill is correct.

Given that the sum of the ones column is lower than 10 he does not need to regroup.

You have to regroup when the additions of the digits of the same place add up more than ten. For example adding 23 and 47.

In the columns of ones you have 3 + 7 = 10, then you write 0 in the ones column and carry the one to the next column (to the left). Now, regrouping, you will have 1 + 2 + 4 in the columns of the tens to obtain 7. And the result is 70.

Choose the correct classification of 2x + 10x2 − x3 by number of terms and by degree.Third degree trinomial
Fourth degree trinomial
Sixth degree polynomial
First degree binomial

Answers

Answer:

(A)Third degree trinomial

Step-by-step explanation:

The given expression is:

$2x+10x^2-x^3$

Now, Degree of the expression is defined as the highest power of the variable given in the expression, thus in the given expression that is $2x+10x^2-x^3$ the variable is x and the highest power of x is 3, therefore it is a third degree expression.

Also, Trinomial is an expression which consists of three terms, and also the given expression $2x+10x^2-x^3$ consists of three terms that are $2x, 10x^2 and -x^3$ therefore, the given expression is a third degree trinomial.

Thus, option A is correct.

Hello,
answer A
degre=3
nb terms=3

If two 6-sided number cubes are rolled, what is the probability that a 2 is rolled on the first cube and a 5 is rolled on the second cube?

Answers

There are 6 sides on the number cubes, numbered 1-6.

The odds of rolling a 2 are 1 in 6, or 1/6

P(2)=1/6

The odds of rolling a 5 are 1 in 6, or 1/6

P(5)=1/6

P(2)*P(5)=1/6*1/6=1/36

The odds of rolling a 2 and a 5 are 1/36

Answer=1/36

the answer is going to be 1/36

Which of the following relationships between two variables could be described using correlation, r?(A) Number of books read and gender of a student.
(B) Number of football games played and the position of a football player.
(C) High temperature of the day and number of zoo visitors that day.
(D) Type of beverage ordered and time of day it was ordered.
(E) Brand of cell phone and number of cell phones sold.

Answers

The relationship which could be described using correlation, r is; Choice C; High temperature of the day and number of zoo visitors that day.

What is correlation

Correlation is a statistical measure that expresses the extent to which two variables are linearly related (meaning they change together at a constant rate). It's a common tool for describing simple relationships without making a statement about cause and effect.

Correlation is characterized by the two variables being quantitative variables.

Hence, since High temperature of the day and number of zoo visitors that day are quantitative, the relationship can be described as correlative.

Answers

Answer: 2. 1/8

1/4+1/8=3/8
3/8+1/8=4/8=1/2

A 7 inch candle burns at a rate of 2 inches per hour. Which equation represents therelationship between y, the height of the candle, and x, the number of hours the
candle burns?

Answers

Answer:

Step-by-step explanation:

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