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Dmitry_Shevchenko [17]
3 years ago
8

To which subset of real numbers does -18 not belong?

Mathematics
1 answer:
jarptica [38.1K]3 years ago
3 0
The subsets of the real numbers are the irrational numbers, rational numbers, integers, whole numbers, and the natural numbers. First, figure out where does -18 belong? Well, -18 is a rational number because it can be expressed as a fraction of two integers. It's also an integer.

So, it doesn't belong in the sets of irrational numbers, whole numbers, and the natural numbers.
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Marie purchased a 29.00 gift. She uses a coupon that offers 30 percent. How much will she spend on the gift after the coupon?
asambeis [7]

Answer:

$20.30

Step-by-step explanation:

The usual price of the gift is $29.00

Marie will get 30% DISCOUNT on this price if she uses her coupon. So, the final price would be 30% less than $29.00

First, we need to find 30% of $29.00. Then we need to subtract that from original price (29).

Convert percentage to decimal first:

30% = 30/100 = 0.3

Now multiply this with 29 to get:

0.3 * 29 = $8.70

We subtract this from original price to get DISCOUNTED PRICE:

$29.00 - $8.70 = $20.30

6 0
4 years ago
What is the diameter of 144πm2??
Neko [114]
4(pi)m^2 = 144(pi)
4m^2 = 144

m^2 = 36
m = 6cm

diameter = 2m
= 2(6)
= 12cm
3 0
3 years ago
Read 2 more answers
Which of the following is the graph of y = |x - 3|
quester [9]

Answer:

<u>y = | x - 3 | is graphed on the attachment below </u>↓

Step-by-step explanation:

If you ever need an equation graphed, here's a useful site called Desmos that can do that really well and for free.

8 0
2 years ago
What is the equation of the circle with radius, r = 11 , and the center at (0, - 7)
Dimas [21]

Answer:

A

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

Given (h, k) = (0, - 7) and r = 11, then

(x - 0)² + (y - (- 7))² = 11², that is

x² + (y + 7)² = 121 → A

4 0
3 years ago
20. A community is having a Taste of the Town event featuring dishes from the area’s best restaurants. The cost of admission is
marin [14]

Answer:

18550 - 10x

Step-by-step explanation:

Given that :

Cost of admission in Advance = $25

Cost of admission at the door = $35

Number of people who paid in advance = x

Total number of tickets sold = 530

Total amount made from ticket sales will be :

(Number who paid in advance * cost) + (number who paid at the door * cost)

(25 * x) + (530 - x) * 35

25x + 18550 - 35x

18550 - 10x

6 0
3 years ago
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