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Ket [755]
4 years ago
13

Which sets of numbers are closed under multiplication?

Mathematics
1 answer:
algol134 years ago
6 0
Here are the answers to the given questions above. The sets of numbers that are  closed under multiplication are the following: Whole numbers, and Integers. The answers would be options A and D. Whole numbers are closed<span> only </span>under<span> addition and </span>multiplication. Integers are closed under<span> addition, subtraction, </span>multiplication<span>, and division (with the exception of division by 0). Hope this answer helps.</span>
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Zoe buys a new car for $26,750. If that price includes a 7% sales tax, what is the price of
Furkat [3]

Answer:

24877.5

Step-by-step explanation:

%7 of 26,750 is 1,872.5

Subtract: 26,750 - 1,872.5

Then the answer is 24877.5

6 0
3 years ago
What is the area of a circular wrestling region with a 42 ft diameter
zloy xaker [14]

Answer:

The area of a circular wrestling region with a 42 fr diameter is

A≈1385.44ft²

4 0
4 years ago
Line j has a slope of − 2. Line d is perpendicular to line j and passes through the point( − 8 , 3 ).  Write the equation for
Zina [86]

Answer:

The equation is: y = 1/2x + 7

Step-by-step explanation:

The slope of j is -2. The slope of a line perpendicular to line j has a negative inverse: 1/2. The point is (-8, 3).

Use the point slope form of the equation:

y - y1 = m(x - x1)

Substitute:

y - 3 = 1/2(x - (-8))

y - 3 = 1/2x + 4

y = 1/2x + 4 + 3

y = 1/2x + 7

Proof:

Solve for f(x) when x = -8.

f(x) = 1/2x + 7

f(-8) = 1/2(-8) + 7

= -8/2 + 7

= -4 + 7

= 3, giving the point (-8, 3)

4 0
3 years ago
a ladder is 25ft long the ladder needs to reach to a window that is 24ft above the ground how far away from the building should
Wewaii [24]
By the Pythagorean Theorem:

24^2+d^2=25^2

576+d^2=625

d^2=49

d=√49

d=7 ft
8 0
3 years ago
Which of these professionals most directly uses geometry?
notka56 [123]
Good Morning!
<span>air traffic controller
</span>

The most cited professional who uses geometry is the air traffic controller. This professional needs to calculate routes, distances and times traveled in order to avoid accumulation of aircraft at the time of landing, for example.
8 0
3 years ago
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