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3 years ago

three different members of the set {4, 5, 6, 7, 8, 9} are chosen at random and added. how many different sums are possible?

Mathematics

1 answer:

kolezko [41]3 years ago

6 0

Answer: 20

Step-by-step explanation:

4+4 5+5 6+6 7+7 8+8

4+5 5+6 6+7 7+8 8+9

4+6 5+7 6+8 7+9

4+7 5+8 6+9

4+8 5+9

4+9

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Ratling [72]

Answer:

x = 18 ; y = 10 ; z = 102°

Step-by-step explanation:

The triangle in the pic is an isosceles triangle.

As it is an isosceles triangle , it's two sides will be equal .

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$= > x = \frac{54}{3} = 18$

Also, both the base angles will be equal.

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

The sum of 21 and n is equal to 43.23 please help me!!! I’ll give out 30 points!!!

Assoli18 [71]

Equation: 21+n=43.23

Process to find n

21+n=43.23
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2 years ago

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Can u help solve this

8_murik_8 [283]

Answer and Step-by-step explanation:

The expression is equal to 90.

This is because the lines that cut the right angle are cutting it in half, so those base angles are 45, leaving the center angle to be 90 (90 + 45 + 45 = 180).

90 = 19x + 4.5

85.5 = 19x

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The value of x that makes the parallelogram a square is 4.5.

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