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3 years ago

In the figure below, triangle ABC is similar to triangle PQR:

Mathematics

1 answer:

miskamm [114]3 years ago

3 0

Answer:

The length of PQ is 24

Step-by-step explanation:

If you flip triangle PQR upside down the you can see which side corresponds to which. BC corresponds to QR and AB with PQ, the scalar is 6 because of BC (2) times 6 = QR (12). So you just have to do 4 times 6 which is 24.

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Two balls are drawn in succession out of a box containing

victus00 [196]

There are a total of 8 balls

The probability of drawing a white ball is 4/8 on the first draw.
If you replace the ball then the probability will still be 4/8 for a white ball, since these events are independent of each other you multiply 4/8 x 4/8 = 16/64 or 1/4 then the probability of drawing at least 1 red ball with replacement is 1 - 1/4 = 3/4

Now without replacement:
the probability of drawing a white ball is 4/8 since you don't replace the ball then the probability of drawing a white ball the second time is 3/7 again multiply these two probabilities: 4/8 x 3/7 = 12/56 the the probability of drawing at least 1 red ball is 1- 12/56 = 44/56 or 11/14

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2 years ago

Workout the following divisions.

IgorC [24]

Answer:

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3 years ago

Factor this expression completely. 18x^2 - 32

nata0808 [166]

Answer:

2(3x - 4)(3x + 4)

Step-by-step explanation:

Factorizing the below expression requires factoring common term.

$18 {x}^{2} - 32$

Obviously 2 is common to both 18 and 32. Thus, the answer is:

$= 2(9 {x}^{2} - 16)$

=2(3x - 4)(3x + 4)

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2 years ago

Which is better buy: 25 ounces of jelly for $3.39 or 36 ounces of jelly for $4.59?

aleksley [76]

Answer:

i believe that 25 ounces of jelly for 3.39$ is better to buy

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3 years ago

-2 - f >2 solve the inequality and graph the solution

m_a_m_a [10]

-2 -f > 2

hmmm

I think it would be -f > 4 because you add two on both sides, starting on the left first, and I don't think this one has a graph because there's no x or y to go off of, or r or theta either, so I'm not completely sure, -f>4 is as far as I can go on here, I hope this helped. I'm sure you mistyped it though, and if you did, feel free to go into the text box and ask more about this.

3 0

1 year ago