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2 years ago

A bag contains 42 cups of dog food.

Mathematics

1 answer:

Travka [436]2 years ago

7 0

Answer:

Step-by-step explanation:

There's only 42 cups so that won't even last one day lol

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In a certain lottery, you must select 5 numbers (in any order) out of 26 correctly to win. a. How many ways can 5 numbers be

Step2247 [10]

Answer:

a. 7893600

$b.\ \dfrac{1}{26}$

Step-by-step explanation:

Given that there are 26 numbers out of which 5 numbers are to be chosen.

Here repetition is not allowed.

For each of the 5 cases, the total number of possibilities will keep on decreasing by 1.

1st case, number of possibilities = 26

2nd case, number of possibilities = 25

3rd case, number of possibilities = 24

4th case, number of possibilities = 23

5th case, number of possibilities = 22

a. Total number of possibilities = 26 $\times$ 25 $\times$ 24 $\times$ 23 $\times$ 22 = <em>7893600</em>

b. Probability of winning by choosing one number:

Formula for probability of an event E can be observed as: $P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

Number of favorable cases = 1

Total number of cases = 26

So, required probability:

$P(E) = \dfrac{1}{26}$

So, the answers are:

a. 7893600

$b.\ \dfrac{1}{26}$

5 0

3 years ago

Is x greater than, less than, or equal to 73 degrees?

puteri [66]

Answer:grater than

Step-by-step explanation:

mark brainliest please

6 0

3 years ago

Let f(x) = √x-5<br><br> Find f^ -1.

iris [78.8K]

Answer:

$f^{-1}(x)= x^2 + 5 \,,\,\,x\geq 0$

Step-by-step explanation:

Use the method of swapping x and y and isolating y.

$f(x) = y = \sqrt{x-5}\,,\,\,\,x\geq 5,y\geq0\\\\f^{-1}:x=\sqrt{y-5}\,,\,\,\,y\geq 5, x\geq 0\\x^2 = y-5\\y = x^2 + 5 = f^{-1}(x)\\$

Note that domain/range will be swapped as well.

5 0

3 years ago

One sixth of a number decreased by 4 is equal to 3. What is this number?

maw [93]

1/6 of x - 4 = 3

((1/6).x) - 4 = 3

x/6 - 4 = 3

(x-24)/6 = 3

x - 24 = 18

x = 18 + 24

x = 42

hope it helps...!!!

6 0

2 years ago

Evaluate -2 - (-4) -2

Diano4ka-milaya [45]

Answer:

Step-by-step explanation:

-(-4) cancels out to be positive 4. So -2+-2+4= -4+4, which is equivalent to 0

5 0

3 years ago

Read 2 more answers