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Helga [31]
2 years ago
7

Help me please thanks​

Mathematics
1 answer:
liubo4ka [24]2 years ago
5 0
54.7 cm because a squared + b squared = c squared
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Which is NOT an advantage of using a credit card?
Lunna [17]

Answer:

paying interest on your purchase

3 0
3 years ago
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Which of the following sets is NOT dlosed under addition?
sergij07 [2.7K]

Answer:

Odd numbers.

Step-by-step explanation:

Closed under addition means you will able to take any two numbers from whatever set is mentioned and add them to get a number in that same set.

(If I say counting numbers, I'm still talking about the natural numbers.)

So let's look at the natural numbers {1,2,3,4,5,6,...}.

1+1=2

1+2=3

1+3=4

...

6+19=25

Let a and b be counting numbers.

a+b is still going to be a counting number.

You will always get a counting number when adding two counting numbers. So the counting numbers (also known as the natural numbers) is closed under addition.

Let's skip down to odd numbers because the other sets are similar to the first.

Let's add a pair of odd numbers.

3+5=8

8 is not odd so the odd numbers are not closed under addition because we will not always get an odd number. In fact, you will never get a odd number, but the thing is you just need one example to show it is not closed.

(2k+1)+(2a+1)

2(k+a)+2

2(k+a+1) is even so adding two odds will always give you an even.

4 0
3 years ago
Read 2 more answers
The diagram to the right shows a reflection across a line. Find the value of each variable.
puteri [66]

From the diagram, we can conclude that 5x = 15, 4y = 8, and 2z - 1 = 24.From that, we solve and get x = 3, y = 2, and z = 12.5


Hope this helps!

7 0
3 years ago
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3. The perimeter of a rectangle is 98 feet. Find its dimensions assuming that its length is 2 feet less than twice its width.
mixer [17]

Answer:

w = 17 fts

l = 32 fts

Step-by-step explanation:

P = 2w + 2l

l = 2w - 2

98 = 2w + 2(2w - 2)

98 = 2w + 4w - 4

98 + 4 = 6w

6w = 102

w = 17 fts

l = 2×17 - 2 = 34 - 2 = 32 fts

3 0
3 years ago
If DG = 10, what is the value of x?
timama [110]

Answer: x = 8

Step-by-step explanation:

DG = 10

(x + 1) + (2x - 15) = DG

so;

x + 1 + 2x - 15 = 10

3x - 14 = 10

3x = 10 + 14

3x = 24

x = 24/3

x = 8

6 0
3 years ago
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