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3 years ago

How many 6-digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, if repetitions of digits are allowed?

1 answer:

6 0

There are 6 digits. Each digit can take ten different numbers except for the first digit since it cannot be zero.

So:

9 x 10 x 10 x 10 x 10 x 10

900000 numbers.

Another way of thinking about this is to just count up to 999,999. Obviously there are 999,999 different numbers here. But since our number has to have 6 digits in them, we have to delete 99,999 numbers. Thus there are 900,000 different numbers.

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Find the value of x and y Please help me. Thank you

STatiana [176]

Answer:

Step-by-step explanation:

let each angle=A

A+A+A=180

3A=180

A=180/3=60°

as the angles are equal so sides are equal.

16+y=46

y=46-16=30

applying sine formula

$\frac{30}{sin z} =\frac{46}{sin~80} \\sin~z=\frac{30}{46} \times ~sin~80=\frac{15}{23} \times sin ~80\\z=sin^{-1}( \frac{15}{23} \times sin ~80) \approx~39.96^\circ \approx40^\circ$

z+x=60

40+x=60

x=60-40=20°

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3 years ago

The math test has 10 multiple choice questions, each with 4 answers. If Betty guesses correctly on the first 2 questions, what i

bekas [8.4K]

It doesn't matter that she guessed correctly on the first two questions, guessing the third question correctly is independent of guessing any other question correctly. Therefore, the probability is one out of four, 1/4.

5 0

3 years ago

Read 2 more answers

Catering the concord theater serves punch during intermission. If each of 200 people think 1 c of punch, how many gallons of pun

Delicious77 [7]

Answer:

they will need 2 gallons of punch

3 0

3 years ago

Ms. Wood took m1/6 of an hour to review each question fromt the Science test. How many questions can she review in 2/3 of an hou

Archy [21]

Answer: 4 questions

Step-by-step explanation:

16h=10 min

2/3=40 min

Use equation:

1:10=x:40

40=10x

x=40/10

x=4

5 0

3 years ago

PLEASE HELPPPP 4(x−2 1/4)=−3.7

LekaFEV [45]

First let’s convert the mixed numbers to improper fractions 2 1/4 =9/4
Then u get 4(X-9/4) =-3.7
Now your gonna divide both sides by four
4(X-9/4) over 4 = -3.7 over 4
4/4 =1 …X=-9/4
-3.7/4 = -0.925
Now you’re going to add 9/4 to each side
X-9/4+9/4=-0.925 +9/4
-9/4 + 9/4 =0 (X)
Now you have just -0.925 and nine fourths
I converted 9/4 —> 2.25
Then u still have -0.925
So add 2.25+-0.925 u get ur X which is 1.325 (this is ur answer)

5 0

3 years ago