Math

1)Find the value of 7+2(5-2*3^2)

7+2(5-2*9)
7+2(5-18)
7+2(-13)
7+-26
(answer)-19

2)Name the sets of numbers to which 457 belongs.

(answer)natural,whole,integers,rational,reals

  1. 👍
  2. 👎
  3. 👁
  1. We have this:

    7 + 2(5 - 2 * 3 ^ 2)

    USE PEMDAS...Do you know what PEMDAS stands for?

    Work out the inside of the parentheses first.

    Inside we have this guy:

    5 - 2(3)^2

    5 - 2(9)

    5 - 18

    -13

    We now have this:

    7 + 2(-13)

    7 - 26 = -19

    Done!

    =================

    NEXT:

    Name the sets of numbers to which 457 belongs.

    457 belongs to the following family of numbers:

    natural
    whole
    intergers
    real numbers

    I have doubt about rational.

    Rational numbers are basically fractions.

    Unless you meant to type 0.457, did you?

    In other words, if a number can be written as a decimal (a decimal is basically a fraction) that either repeats forever or simply ends (called a terminating decimal), then the number is RATIONAL.

    Can 457 be expressed as decimal number?

    NO, it cannot!

    This is why I doubt that the family of numbers above includes rational for 457.

    See my point?

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    Three numbers X, Y, and Z are in the ratio 2:7:8. If 12 is subtracted from Y, then three numbers form a geometric sequence (in the order X, Y–12, Z). Find X, Y, and Z. There are two sets of answers I already found one set i am

  2. Math

    1. Which expression is equivalent to (-2)(a+6)? A. -2a+6 B. 2a+12 C. -2a-12*** D. -2a+12 2. To which sets of real numbers does the number -22 belong? Choose all subsets that apply. (There's two right answers) Whole Numbers

  3. Math

    Identify all sets to which the number 3 belongs A. Whole numbers, integers, rational numbers B. Rational numbers C. Integers, rational numbers D. Even numbers, whole numbers, integers, rational numbers I THINK IT'S A

  4. Confidentiality Health

    Which of the the following statements is true in regard to limited data sets? A.Limited data sets contain some individual identifiers. B.Patients must authorize the use of limited data sets. C. Those who receive limited data sets

  1. Algebra

    Choose which group of sets the following number belongs to. Be sure to account for ALL sets. 2/5 A. Real numbers, rational numbers. B. Real numbers, irrational numbers. C. Rational numbers, natural numbers, integers. D. Irrational

  2. Pre-Algebra

    Scatter plots are used to look for a pattern of association, or trend, between one set of values two sets of values three sets of values four sets of values My answer: two sets of values

  3. Math - Quadratic Equations

    Two consecutive even numbers have a product of 288. What are the numbers? The answer I got through trial and error was 18 and 16. Is there a way for me to form the question into an equation and work that out to find the answer,

  4. Math

    6. The box-and-whisker plot below shows the numbers of text messages received in one day by students in he seventh and eighth grades at Lincoln Middle School. a) Describe the overlap of the two sets of data. b) Find the IQR of

  1. algebra

    true or false 1. fraction cant be written as decimal. 2. natural numbers are referred to as counting numbers.whole numbers consists of counting numbers.whole numbers consist of counting numbers as well as the number 0 3. intergers

  2. math

    a toy car store is ordering 3,000 remote control cars.the store can order the cars in sets of 10.how many sets of 10 does the store need to order? a.30 b.300 c.3,000 d.30,000 a.what information do you need to use? b.what do you

  3. Statistics

    a. Find the mean, median, and range for each of the two data sets. b. Find the standard deviation using the rule of thumb for each of the data sets. c. Compare the two sets and describe what you discover. The following data sets

  4. statistics

    1. For the following exercise, complete the following: a. Find the mean, median, and range for each of the two data sets. b. Find the standard deviation using the rule of thumb for each of the data sets. c. Compare the two sets

You can view more similar questions or ask a new question.