1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dmitriy555 [2]
3 years ago
15

How many times will the digit "3" appear if we write all whole numbers from 1-9999?

Mathematics
1 answer:
Marysya12 [62]3 years ago
5 0

Answer:

4000

Step-by-step explanation:

from 1 - 1000 = 300

1's    = 100

10's  = 100

100's = 100

1000's = 0

300 * 10 = 3000

then add in all the 3000's (ie 3001,3002, etc ) that adds one more thousand

3000 + 1000 = 4000

You might be interested in
Please help, I need input on if I did this correctly and you just substitute.
kow [346]

The value of h(t) when t=\frac{15}{32} is 10.02.

Solution:

Given function h(t)=-16t^2+15t+6.5

To find the value of h(t) when t=\frac{15}{32}:

h(t)=-16t^2+15t+6.5

Substitute t=\frac{15}{32} in the given function.

$h\left(\frac{15}{32} \right)=-16\left(\frac{15}{32} \right)^2+15\left(\frac{15}{32} \right)+6.5

            $=-16\left(\frac{225}{1024} \right)+15\left(\frac{15}{32} \right)+6.5

Now multiply the common terms into inside the bracket.

           $=-\left(\frac{3600}{1024} \right)+\left(\frac{225}{32} \right)+6.5

Now, in the first term, the numerator and denominator both have common factor 16. So reduce the first term into the lowest term.

          $=-\left(\frac{225}{64} \right)+\left(\frac{225}{32} \right)+6.5

To make the denominator same, take LCM of the denominators.

LCM of 64 and 32 = 64

        $=-\left(\frac{225}{64} \right)+\left(\frac{225\times2}{32\times2} \right)+6.5\times\frac{64}{64}

        $=-\frac{225}{64} +\frac{450}{64}+\frac{416}{64}

        $=\frac{-225+450+416}{64}

       $=\frac{641}{64}

       = 10.02

$h\left(\frac{15}{32} \right)=10.02

Hence the value of h(t) when t=\frac{15}{32} is 10.02.

8 0
3 years ago
What is 11/2 divided by 3/4
madam [21]

Answer:

2 and 14/15

Step-by-step explanation:

7 0
3 years ago
−6x^2−1 and x+9 help will mark brainliest.
Varvara68 [4.7K]

Answer:

-6x^2+x+8

Step-by-step explanation:

Add -1 and 9 because they are the only like terms

8 0
3 years ago
How do you combine like terms with a already answered questions
mestny [16]

Answer:

u put the algebraic like terms together whether they add or subtract each other

7 0
3 years ago
What is another example for data on a statistical question
svet-max [94.6K]

Answer: A statistical question anticipates variability in the response and can be answered by collecting data.

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • What is the slope of the line?
    10·1 answer
  • The length of a train car is 50.6 feet this is baffling 8 feet less than six times the width what is the width
    6·1 answer
  • What is the domain of the function represented in the graph
    11·2 answers
  • What is the value of 5xexponent 3 y exponent 2 when x=2 and y=4
    10·1 answer
  • What are the factors to a2+11a+30
    5·2 answers
  • I need help asap please
    7·1 answer
  • What should the following equation be multiplied by in order to eliminate the fractions? 2y/3+1/3=y/2+1/6
    13·1 answer
  • The coordinates of triangle PQR are P (2, -3), Q (-3, 5), and R (-1, -2). If the points of the triangle are reflected across the
    10·2 answers
  • How does the job satisfaction score for weeks 5-8 compare to weeks 1-4?
    14·1 answer
  • Claire estimates the her brother is 4 feet tall. When they get measured at the doctor's office her brother's height is 4 feet 2
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!