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stich3 [128]
3 years ago
7

Which conditional statement has a false converse?

Mathematics
1 answer:
exis [7]3 years ago
8 0

Consider the converses:

a) If two planes have no points in common, then they are parallel. (true)

b) If a point lies on the y-axis, then it has x-coordinate 0. (true)

c) If two angles have the same measure, then they are congruent. (true)

d) If a figure has four sides, then it is a square. (FALSE) (A figure with 4 sides may not even be a plane figure.)

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PLEASE HELP!!<br> Solve for y<br> a) 8<br> b) 12<br> c) 3V7<br> d) 4V7
Arlecino [84]

Answer:

C. y = 3\sqrt{7}

Step-by-step explanation:

Based on the right triangle altitude theorem, the altitude, y, in the diagram above, equals the geometric mean of 9 and 7.

This implies => y = \sqrt{9*7}

Thus, solve for y.

y = \sqrt{9} * \sqrt{7}

y = 3\sqrt{7}

The answer is C. y = 3\sqrt{7}

3 0
3 years ago
Please helpppp it has to do with P(A U B)
Katyanochek1 [597]
P(A)=0.5, P(B)=0.6, P(A\cup B)=0.8

We find the probability of intersection using the inclusion/exclusion principle:


P(A\cap B)=P(A)+P(B)-P(A\cup B)=0.3


By definition of conditional probability,


P(A\mid B)=\dfrac{P(A\cap B)}{P(B)}=\dfrac{0.3}{0.6}=0.5


For A and B to be independent, we must have


P(A\cap B)=P(A)\cdot P(B)

in which case we have 0.3=0.5\cdot0.6, which is true, so A and B are indeed independent.


Or, to establish independence another way, in terms of conditional probability, we must have

P(A\mid B)\cdot P(B)=P(A)\cdot P(B)\implies P(A\mid B)=P(A)


which is also true.
7 0
3 years ago
In order to successfully add or subtract, what do you need first?
Andrej [43]

Answer:

highest number first then lowest

Step-by-step explanation:

3 0
3 years ago
PLZ ANY HELPPP I WILL MARK YOU BRILLLLLLL
Anna35 [415]

Answer:

27

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Estimate the product 28 2/3 x 4/5
Leona [35]

Answer:

23.2, exact is 22.9333334

Step-by-step explanation:

28 2/3 is around 28.5 ,4/5 is .75

28.5 * .75 = 21.375

8 0
3 years ago
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