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Ivan
3 years ago
7

3. Which sum is rational? A. 7+ 18 B. 125 +1.75 C. 3 + 5.5 D. 1+ V2

Mathematics
1 answer:
omeli [17]3 years ago
6 0

Answer:

a is rational

Step-by-step explanation

b and c would result in a decimal

and d) v2 isnts a number or a variable

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After 2 females leave a party, there are twice as many males as females. Then 9 males leave and there are twice as many females
ira [324]

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Step-by-step explanation:

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3 years ago
36/sqrt(x-2) +4sqrt(y-1) = 28- 4/sqrt(x-2)- sqrt(y-1) find x,y
Leni [432]
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3 0
2 years ago
Please solve the following questions!!
alexandr402 [8]

Answer:

3. The missing angle is 56°

4. x = 7

Step-by-step explanation:

3.

We know sum of 3 angles in a triangle is 180°.

Looking at the top triangle, we can figure out the third angle. Let third angle be x:

85 + 35 + x = 180

120 + x = 180

x = 180 - 120

x = 60

<u>The angle "x" and the angle that is missing from the "bottom" triangle in the figure, are vertical angles, and hence, are EQUAL.</u>

So the bottom triangle now has 2 angles, 60 and 64 (given). Let the third angle be y(the one with a question mark). So we can write:

60 + 64 + y = 180

124 + y = 180

y = 180 - 124

y= 56

This is the missing angle.

4.

10x - 5 AND 8x + 9 are vertical angles. They ARE EQUAL.

Thus we can write the equation:

(10x-5) =  (8x+9)

10x-8x=9+5

2x=14

x=14/2

x=7

So x = 7

5 0
2 years ago
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