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lilavasa [31]
3 years ago
7

Please answer w/ an explanation of number system. Also tell me if you want to do my Khan Academy

Mathematics
2 answers:
blagie [28]3 years ago
4 0

Answer:

B: Integer

Step-by-step explanation:

I also did that khan academy and got it right

Nataliya [291]3 years ago
3 0

Answer:

None of the choices

Irrational, Real, Complex

Step-by-step explanation:

Number system:

(since I'm having image upload trouble I'll just do an outline format)

Complex numbers (all numbers we have)

I. Imaginary

  - cannot be plotted on number line

   -include <em>i</em>, sqrt  of (-) #s, variables, |-#s|, etc.

   (This includes pure imaginary and imaginary #s: In terms of <em>i</em>, pure imaginary is only b*i, and imaginary is a+b<em>i</em>, a and b being integers)

II. Real numbers: can be plotted on # line (have a real value)

     A. Irrational numbers

          - Non-repeating, non-terminating (ending) decimals

               E.X. : 1.12343123510971324...

          - Cannot be expressed as a fraction of 2 integers

          - Has a real value (pi, phi, tau, square roots of non-perfect non-negative squares e.x. \sqrt2)

    B. Rational

         - Can be expressed as fraction of 2 integers

            E.x. 0.3333... = 1/3

         - Can be expressed as terminating or repeating decimal

            E.x. 0.3232... , 0.32, etc.

          1. Includes: Fractions and terminating/repeating decimals

          2. Integers: ..., -3, -2, -1, 0, 1, 2, 3, ...

               a. Whole numbers: 0, 1, 2, 3, ...

                      i. Counting/natural numbers: 1, 2, 3, ...

                   

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Estimate the value of this expression by rounding each number to the nearest unit
Alina [70]
So rounding to the nearest unit means replacing the number and taking the closest integer it is to. For example 0.96 is 1, and 5.45 is 5. So doing this in this prob. is 1 × 10 × 5, or 50.
3 0
3 years ago
CD is perpendicular to AB and passes through point C5, 12).
Aleksandr-060686 [28]

Answer:

x intercept of CD = 17

Step-by-step explanation:

We are given a line AB with its end coordinates. and Another line segment CD which is perpendicular to AB. We have the coordinates of C , and we are asked to find the x intercept of line CD.

For that we need to find the equation of CD

we have coordinates of C , and hence if we have slope of CD we can find equation of CD

Slope of CD can be determine with the help of slope of AB as CD⊥ AB

So, the slope of CD mCD = -\frac{1}{mAB}

Hence we start from determining slope of AB

slope is given as

m= \frac{y_2-y_1}{x_2-x_1}

m= \frac{14-(-3)}{7-(-10)}=\frac{17}{17}=1

Hence mAB=1

There fore mCD=-1

(∵  Product of Slopes of two perpendicular lines is always -1)

Now we find the equation of CD with the help of slope -1 and coordinates of C(5,12)

m=\frac{y-y_1}{x-x_1}

-1=\frac{y-12}{x-5}

-x+5=y-12

y=-x+17

Hence we have our equation , now in order to find the x intercept we keep y = 0 in it and solve for x

0=-x+17

x=17

Hence the x intercept is 17

8 0
3 years ago
A rectangular balcony has an area of 32 square feet. its perimeter is 24 feet. what are the dimensions of the balcony?
Paul [167]

Answer:

Step-by-step explanation:

8 ft by 4 ft

8ft x 4ft = 32 ft

8ft + 8 ft = 16 ft  4 ft + 4 ft = 8 ft

16ft + 8 ft = 24 ft

5 0
3 years ago
15 points to answer this question
Mamont248 [21]

it is none since there is no relation

4 0
3 years ago
Read 2 more answers
If f(1) = 7 and f(n) = 5(n-1) + 2, then f(4) =
Igoryamba

Answer:

17

Step-by-step explanation:

f(n)=5(n-1)+2

f(4)=5(4-1)+2

=5×3+2

=17

hope it helps

plz. mark as brainliest

4 0
3 years ago
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