3 years ago

35

Mathematics

1 answer:

Mars2501 [29]3 years ago

3 0

Answer:

Step-by-step explanation:

Hifddgrsdf hghdt hhdtseg jjffey

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If a → b is true, then ~a → b is also true.

Rasek [7]

Answer:

False

Step-by-step explanation:

To determine whether the statemaent "If $a\Rightarrow b$ is true, then $\neg a\Rightarrow b$ is also true" holds, you can form the truth table:

$\begin{array}{ccccc}a&b&a\Rightarrow b&\neg a&\neg a\Rightarrow b\\1&1&1&0&1\\1&0&0&0&1\\0&1&1&1&1\\0&0&1&1&0\end{array}$

When the result of the column $a\Rightarrow b$ takes value 1 (true), the result of the column $\neg a\Rightarrow b$ is not always 1, then the statement is false.

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3 years ago

What is the probability of tossing a penny and landing on heads three times in a row

lesantik [10]

$|\Omega|=2^3=8\\|A|=1\\\\P(A)=\dfrac{1}{8}=12.5\%$

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2 years ago

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Using the Parallelogram Side Theorem Parallelogram A B C D is shown. Sides A B and D C are parallel. The length of A B is 4 q mi

ipn [44]

Answer: The length of AB = 8 units

Step-by-step explanation:

Given: In parallelogram ABCD, Sides A B and D C are parallel.

The length of AB is 4q minus 8 and the length of DC is q + 4.

Since opposite sides of parallelogram is parallel and equal.

So $4q-8=q+4$

$\Rightarrow\ 4q-q=4+8\\\\\Rightarrow\ 3q=12\\\\\Rightarrow\ q=4$

Length of AB = 4q-8=4(4)-8=16-8=8 units

Hnece, the length of AB = 8 units

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3 years ago

[PICTURE ATTACHED] HELPP!<br> Which is NOT a good reason to perform step 1 in the solution shown?

DaniilM [7]

Answer:

Divide by 4 because 4 is a factor of 88.

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Write the quadratic function in vertex form.<br><br> y = x2 + 18x + 71

il63 [147K]

X=67
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20
??? Is that what you needed idk lol

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3 years ago

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