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liq [111]
2 years ago
10

PLEASE HELP! Christy rolls a number cube and then chooses a card from a set numbered 1 through 9. What is the probability that s

he will roll an even number and choose an odd card?
Make sure to show your setup and your answer for credit.
THANK YOU SO SO SO SO MUCH!
Mathematics
1 answer:
erastovalidia [21]2 years ago
4 0
(1/2)+(5/9)=(19/18)
The probability of rolling an even is 3/6 = 1/2
The probability of choosing an odd card is 5/9
These are mutually exclusive, so add the probabilities together.
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Two triangles are similar.The the smaller triangle has side 10,20 and 15 units the larger triangles longest side is 52 units.Wha
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Answer: The perimeter of the largest triangle = 117 units.

Step-by-step explanation:

Sides of smaller triangle = 10,20 and 15 units

Longest side = 20 units

Longest side of larger triangle = 52 units

Sides of two similar triangles are proportional.

Let k be proportionality constant.

k=\dfrac{\text{Length in larger triangle}}{\text{Length in smaller triangle}}

k=\dfrac{52}{20}\\\\\Rightarrow\ k=\dfrac{13}{5}

Length of other two sides,

10\times\dfrac{13}{5}, 15\times\dfrac{13}{5}\ i.e.\ 26\text{ units}, 39\text{ units.}

So sides of larger triangle = 52 units, 26 units , 39 units

Perimeter of largest triangle = 52 +26+39 = 117 units

Hence, the perimeter of the largest triangle = 117 units.

4 0
3 years ago
A rectangle has a perimeter 90 cm and length 37 cm. What is it’s width
Tresset [83]

Answer:

8cm

Step-by-step explanation:

5 0
2 years ago
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A triangle in the coordinate plane has vertices ????(0,10), ????(−8,8), and ????(−3,5). Is it a right triangle? If so, at which
GaryK [48]

Answer:

It is a right triangle, the right angle is at the point (-3, 5)

Step-by-step explanation:

The first step is to locate the points of the vertices in a plane, in this case they are (0.10), (-8.8) and (-3.5). The desmostration of this is shown in the attached image.

As we can see it is formed a right triangle (the figure outlined in red), and the rigth angle is the one at the point (-3,5).

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2 years ago
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6 0
3 years ago
hanna buys 3 packs of 36 exposure film and 2 packs of 24 exposure film. she uses 8 rolls of film. how many rolls does she have l
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To solve this problem, first we have to figure out how many total rolls Hanna buys.

3 packs*36 rolls in each pack = 108 total rolls
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156-8 = 146 rolls

Hanna has 146 rolls left.


7 0
3 years ago
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