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3 years ago

7. If P = [5,6,7,8). Q = (2,4,6,8) andR=2, 3, 7, 9), then P nQnR=

Mathematics

2 answers:

Setler [38]3 years ago

7 0

Answer:

pnQnR= {}

Step-by-step explanation:

there is no number common in set P, set Q and set R.

So the answer is null

{}

valentina_108 [34]3 years ago

3 0

Answer:

{} there is no number common to the three sets so it is an empty set

Step-by-step explanation:

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One leg of triangle is 7 inches longer than the other leg. The hypotenuse is 8 inches longer than the shorter leg. The perimeter

mixas84 [53]

Answer:

5 ; 12 ; 13

Step-by-step explanation:

Let :

Shorter leg = x

Other leg = x + 7

Hypotenus = x + 8

Recall:

Hypotenus² = opposite² + adjacent²

(x+8)² = x² + (x+7)²

x² + 16x + 64 = x² + x² + 14x + 49

x² - 2x - 15 = 0

x² - 5x + 3x - 15 = 0

x(x - 5) +3(x - 5) = 0

(x + 3) = 0 ; x = - 3

(x - 5) = 0 ; x = 5

Side can't be negative ;

Hence,

x = shorter side = 5

Other side = x + 7 = 5 + 7 = 12

Hypotenus = x + 8 = 5 + 8 = 13

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3 years ago

15 less than a number

sp2606 [1]

Im not sure but i think it is 15 - x

8 0

3 years ago

Read 2 more answers

Solve for x and show all work thanks:)

VladimirAG [237]

Answer:

x = -6

Step-by-step explanation:

The triangle in the picture is an isoceles triangle in which the measure of top vertex angle is given and one of the base angles is also given.

According to angle sum property of triangle , sum of measure of all the angles of traingle is 180°. Also, in isosceles triangle , the base angles are always equal to each other .

So,

$34 + (x + 79) + (x + 79) = 180$

$= > 2x + 158 + 34 = 180$

$= > 2x +192 = 180$

$= > 2x = 18 0 - 192 = - 12$

$= > x = \frac{12}{ - 2} = - 6$

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3 years ago

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barxatty [35]

Answer:

Step-by-step explanation:

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3 years ago

7. If P = [5,6,7,8). Q = (2,4,6,8) andR=2, 3, 7, 9), then P nQnR=​

7. If P = [5,6,7,8). Q = (2,4,6,8) andR=2, 3, 7, 9), then P nQnR=