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3 years ago

–2 • (4) – 3 • (–5) 7 55 -23 -120

Mathematics

2 answers:

tia_tia [17]3 years ago

7 0

Sorry my bad; it's 7 after all :)

konstantin123 [22]3 years ago

4 0

The answer is 7
hope this helps!

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Use conversions to solve the problem. Devante buys 1 1/2

melomori [17]

Answer:

45 oz

Step-by-step explanation:

1.5 lb = 24 oz

3/4 = 12 oz

24+12+9 = 45 oz

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3 years ago

Find an e equation of the vertical line that passes through (0,-2)

viktelen [127]

The equation of the vertical line that satisfies the condition is x=0.

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3 years ago

Expand and simplify bracket please quickly

natulia [17]

Answer:

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Step-by-step explanation:

$(2y - \frac{1 }{2} )(2y + \frac{1}{2} ) \\ using \: formula \: {x}^{2} - y {}^{2} = (x - y)(x + y) \\ 4y {}^{2} - \frac{1}{4}$

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2 years ago

Mr. Deveney bought 4 DVDs for $25.20. What was the price per DVD?

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Answer:

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Step-by-step explanation:

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3 years ago

The weather forecast for the weekend is a 34% chance of rain for Saturday and a 32% chance of rain for Sunday. If we assume that

kaheart [24]

Answer:

$P( A \cap B) = P(A) *P(B) = 0.34*0.32 = 0.1088$

And then replacing in the total probability formula we got:

$P(A \cup B) = 0.34+0.32 - 0.1088 = 0.5512$

And rounded we got $P(A \cup B ) = 0.551$

That represent the probability that it rains over the weekend (either Saturday or Sunday)

Step-by-step explanation:

We can define the following notaton for the events:

A = It rains over the Saturday

B = It rains over the Sunday

We have the probabilities for these two events given:

$P(A) = 0.34 , P(B) = 0.32$

And we are interested on the probability that it rains over the weekend (either Saturday or Sunday), so we want to find this probability:

$P(A \cup B)$

And for this case we can use the total probability rule given by:

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

And since we are assuming the events independent we can find the probability of intersection like this:

$P( A \cap B) = P(A) *P(B) = 0.34*0.32 = 0.1088$

And then replacing in the total probability formula we got:

$P(A \cup B) = 0.34+0.32 - 0.1088 = 0.5512$

And rounded we got $P(A \cup B ) = 0.551$

That represent the probability that it rains over the weekend (either Saturday or Sunday)

6 0

3 years ago