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
nydimaria [60]
2 years ago
8

Explain how to find the value of the digit 7 in the number 3,684,591.74.

Mathematics
1 answer:
alisha [4.7K]2 years ago
7 0

Step-by-step explanation:

every position in a number stands for a different power of 10, which is then multiplied by the digit in that position.

and the value of the whole number is the sum of these little individual calculations.

left of the decimal point we start with 10⁰ = 1 as basic value.

then the second position left of the decimal point stands for 10¹ = 10.

the third position left of the decimal point stands for 10² = 100.

and so on.

now, right of the decimal point we go in the other direction. the first position right of the decimal point stands for 10^-1 = 1/10.

the second position stands for 10^-2 = 1/100.

and so on.

so, the 7 in this number has the value of 7/10 or 7 tenths.

the given number would be fully written

3×10⁶ + 6×10⁵ + 8×10⁴ + 4×10³ + 5×10² + 9×10¹ + 1×10⁰ + 7×10^-1 + 4×10^-2

the decimal point tells us for a number where to begin counting with 10⁰ and 10^-1.

You might be interested in
11. Una escuela telesecundaria tiene una pista de carreras que mide de kilómetro.
Lemur [1.5K]

Answer:

Juanita and Esperanza run 400 meters and 8400 meters respectively and Evelyn make 4.125 laps.

Step-by-step explanation:

<u>The complete question is</u>: A telesecundaria school has a race track that measures one kilometer .

Three students ran the following distances Juanita: 1 laps, Esperanza  21 laps and Evelyn: 1650 m. How many meters did Juanita and Esperanza run?  And how many laps did Evelyn make?

As we know that 1 meter = 0.0025 laps

So, the number of laps Evelyn make = 1650 \times 0.0025

                                                             = 4.125 laps

Also, 1 lap = \frac{1}{0.0025} meters

        1 lap = 400 meters

So, the meters that Juanita run = 1 \times 400 = 400 meters

Similarly, the meters that Esperanza run = 21 \times 400

                                                                   = 8400 meters

Hence, Juanita and Esperanza run 400 meters and 8400 meters respectively and Evelyn make 4.125 laps.

8 0
2 years ago
Given O below, is XY a minor arc, a major arc, or a semicircle?
Neporo4naja [7]

Answer:

B. Minor arc

Step-by-step explanation:

The central angle that is subtended by arc XY is less than 180° and it is not up to a semicircle.

A semicircle is half of a circle of which its central angle measure exactly 180°

The central angle of which an arc is subtended measures more than 180°.

Therefore, arc XY, which has a central angle that subtends it measuring 155° can be said to be a minor arc.

4 0
2 years ago
Read 2 more answers
Are these triangles congruent or can't be determined?
Luda [366]
False. THey are congruent
6 0
2 years ago
Read 2 more answers
A map has a scale of 2 inches = 15 miles.If two towns are 7 inches apart on the map,how far apart are they actually
seraphim [82]
1.) set up a w_k_u chart
2.) in the w column write in on top and mi in the bottom like this
w_K_U
in_
mi_
then in the k column write 2 for in and 15 for mi
W_K_U
in_2_
mi_15_
then in the U column, you write 7 for in and x for mi
W_K_U
in_2_7
mi_15_x
then cross multiply:  2x = 15(7)
multiply 15 times 7 which is 105
2x=105
divide 2x by 2
x=105 
answer 105

3 0
3 years ago
Read 2 more answers
An entity with two multivalued attributes will be mapped as how many relations
grigory [225]
There are so many relationships between the original entity and new relation. 
The relation mapped from an entity involved in a 1:1 unary relationship contains a foreign key that correspond to its own primary key. 1 to one foreign key will be unique.
5 0
3 years ago
Other questions:
  • Subtract. (4u2+4u+3)–2u2
    8·2 answers
  • -9+s=-61 what is the answer
    7·2 answers
  • Working alone at its constant rate, machine A produces x boxes in 10 minutes and working alone at its constant rate, machine B p
    15·1 answer
  • Multiple samples of students were asked four questions , with the sampling variablility of their answers to question 3 being the
    14·1 answer
  • (01.04 MC)Simplify the following expression: (−5)(−3)( 4)
    10·2 answers
  • I need help with geometry
    11·2 answers
  • What is b? Explanation and answer please.
    9·1 answer
  • The scale model of a car is 5% of the size of the actual car. The length of
    12·1 answer
  • 8. Higher Order Thinking Colby's dog gave birth to 6 puppies. Each puppy in the litter now has a mass of about 3 kilograms. Abou
    13·1 answer
  • Maria folded a piece of paper in half 6 times. How many boxes were created?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!