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Anvisha [2.4K]
3 years ago
7

You roll a 6-sided die twice. What is P(1, less than 3)? Simplify

Mathematics
1 answer:
Nadya [2.5K]3 years ago
7 0

Answer:

  • 1/18

Step-by-step explanation:

<u>Probability of 1 is 1 out of 6:</u>

  • 1/6

<u>Probability of less than 3 is: </u>

  • 1 or 2 out of 6 = 2/6 = 1/3

<u>P(1, less than 3) is</u>

  • 1/6* 1/3 =
  • 1/18
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Dale drew the following box to represent the data set.​
dimaraw [331]

Answer:

Min 80,  Q1 82, Med. 85.5, Q3 93, Max 100.

90%.

Step-by-step explanation:

Percentage at least 82 =  100 *(100 - 82) / (100-80)

= 90%.

8 0
2 years ago
If there are 36 boys and 18 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
kow [346]

Answer :36: 18

Step-by-step explanation:

5 0
3 years ago
What is an equation of a parabola with a vertex at the origin and directrix x=4.75?
patriot [66]
An equation for the parabola would be y²=-19x.

Since we have x=4.75 for the directrix, this tells us that the parabola's axis of symmetry runs parallel to the x-axis.  This means we will use the standard form

(y-k)²=4p(x-h), where (h, k) is the vertex, (h+p, k) is the focus and x=h-p is the directrix.

Beginning with the directrix:

x=h-p=4.75
h-p=4.75

Since the vertex is at (0, 0), this means h=0 and k=0:

0-p=4.75
-p=4.75
p=-4.75

Substituting this into the standard form as well as our values for h and k we have:
(y-0)²=4(-4.75)(x-0)
y²=-19x
4 0
4 years ago
Does anybody know the answer?
V125BC [204]

Answer:

option a

Explanation:

AD and DE are perpendicular lines, meaning they are at a 90° angle. likewise, AD and AB are also perpendicular lines. this means that there are 90° angles at ∠ADE and ∠DAB.

since both DE and AB are perpendicular to the same line and are positioned at the same angle away from it, they are parallel lines.

i hope this helps! :D

8 0
2 years ago
Ali, Ben, and Cliff plant seedlings in their neighborhood park. Ali plants 40% of the total number of seedlings, Ben plants 45%
Juli2301 [7.4K]

Answer:

580 seedlings altogether.

Step-by-step explanation:

Given that,

Ali plants 40% of the total number of seedlings, Ben plants 45% of the total number of seedlings, and Cliff plants the rest of the seedlings. Cliff plants 87 seedlings.

The percentage of the seedling planted by Cliff = 100% - 45% - 40% = 15%

<em>Let x = the total number of seedlings</em>

<em />15\%\ of\ x=87\\\\x=\dfrac{87\times 100}{15}\\\\x=580

Hence, three boys plant 580 seedlings altogether.

7 0
3 years ago
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