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NNADVOKAT [17]
3 years ago
7

There are 25 dogs playing in the dog park. You are a "dog" person and wonder which dog will be the first to come up to you when

you enter the park. There are 15 golden retrievers, 5 pugs, 4 pomeranians, and 1 terrier. What is the probability that the first dog to come over to you will be a pug?
I chose 5/25

2. One Psyc 317 class has 10 people in it; another has 50 people in it. The average grade in the 10-person class is 72% (high probability of getting a C); the average grade in the 50-person class is 85% (high probability of getting a B). Which class average is the most reliable?

a. the 10 person class

b. 50 person class

c. cannot determine with this information

d. both equally

I chose the 50 person class.
Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
6 0
Jkeuchshidhdhsudhbdbcushbsbxx
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Tom has 7 more silver dollars than jimmy. Together they have a total of 71 silver dollars . How many silver dollars does tome ha
gregori [183]
Let Jimmy have x silver dollars
then tom have 7+x silver dollars .
from the given condition :
x + x+7 = 71
2x = 71-7
2x=64
x=32
then 32+7 = 39 
so tom will have 39 silver dollars.
4 0
3 years ago
HELP PLZ DUE RN BRAINIEST TO WHOEVER RIGHT
s344n2d4d5 [400]

Answer: x=0.25

Step-by-step explanation: 1−8x=−16x2

Simplify both sides of the equation.

−8x+1=−16x2

Subtract -16x^2 from both sides.

−8x+1−−16x2=−16x2−−16x2

16x2−8x+1=0

16x2+−8x+1=0

Use quadratic formula with a=16, b=-8, c=1.

x=

−b±√b2−4ac

2a

x=

−(−8)±√(−8)2−4(16)(1)

2(16)

x=

8±√0

32

x=0.25

5 0
3 years ago
A rectangle has a heigh if 4x^3 and a width of x^3+3x^2+2x
Andrews [41]

Answer:

Area = 4x^6+12x^5+8x^4

Step-by-step explanation:

<u>The Complete Question:</u>

A rectangle has height  4x^3  and width  x^3+3x^2+2x. What is the area of the rectangle in terms of x?

<u>Solution:</u>

The formula for the area of a rectangle is:

Area = Height * Width

Both the expressions for height and width is given, so we just need to multiply both the expressions to get an expression, in x, for the area of the rectangle. The algebra is shown below:

A=(4x^3)(x^3+3x^2+2x)\\A=4x^6+12x^5+8x^4

This is the area of the rectangle.

8 0
3 years ago
Using two normal dice, what is the probability of rolling numbers that add up to 3?
Blizzard [7]
That would be rolling a 1 and a 2 .

so possibilities are 1 on first die and 2 on the second die

OR 2 on first die and 1 on the second.

Both of these have a probability of 1/6 * 1/6 = 1/36

so required probability = 1/36 + 1/36 = 2/36 = 1/18


4 0
3 years ago
What is the quotient 1074 divided by 26
Agata [3.3K]

the answer is 44.75 I would explain but ehhhhhhhhhh

6 0
3 years ago
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