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
Xelga [282]
8 months ago
9

Tell whether the number is written correctly in scientific notation. 9.9 times 10*-4

Mathematics
1 answer:
Mnenie [13.5K]8 months ago
6 0
\text{ 9.9 x 10}^{-4}

That is the correct number.

You might be interested in
Un padre para estimular a su hijo para estudiar matemáticas le dice: por cada ejercicio que resuelvas bien te daré 7 € y por cad
Naya [18.7K]

Answer:

8 ejercicios

Step-by-step explanation:

De acuerdo a la información dada, puedes plantear las siguientes ecuaciones:

x+y= 45 (1)

7x-1y= 19 (2)

x= ejercicios que resolvió bien

y= ejercicios que resolvió mal

Primero, puedes despejar x en (1):

x= 45-y (3)

Segundo, debes reemplazar (3) en (2):

7(45-y)-1y=19

315-7y-1y= 19

315-8y= 19

315-19= 8y

296= 8y

y= 296/8

y= 37

Tercero, debes reemplazar el valor de y en (3) para encontrar x:

x= 45-37

x= 8

De acuerdo a esto, la respuesta es que el hijo ha resuelto bien 8 ejercicios.

8 0
3 years ago
A store is selling scooter for $40. You have a coupon and person for $15. What percent was the coupon? 20 points!! ​
Paraphin [41]

Answer:

$15 is 37.5% of $40.

Step-by-step explanation:

5 0
3 years ago
The lengths of the sides of a right triangle can be described by the equation a2 + b2 = c2, where a and b are the lengths of the
Luden [163]
An isosceles triangle contains an 2 identical sides and a hypotenuse. The hypotenuse of an isosceles triangle measures √2 as compared to its sides which is 1. In conclusion, to get the sides of an isosceles triangle when given the length of its hypotenuse, divide the length of its hypotenuse by √2 and you should be able to get the length of its sides.
5 0
3 years ago
Read 2 more answers
Aaron is at a spot in his book where the page numbers of the two facing pages have a product of 1980 what are the two page numbe
Alona [7]
Basically you know that they are 2 consecutive numbers whose product is 1980. 
<span>n*(n+1)=1980 </span>
<span>n^2 + n - 1980 = 0 </span>
<span>(n -44)(n + 45)= 0 </span>
<span>n=44 </span>
<span>so the 2 page numbers is 44 and 45. </span>

<span>The faster way is just to take the square root of 1980 and since that is 44.497 you can conclude that the 2 numbers is below and above it (44, 45)</span>
5 0
2 years ago
What two numbers have a sum of 4 and product of 12
svetlana [45]
The numbers are 6 and -2.
6 + -2 is 4
as well as 6 x -2 is -12
5 0
2 years ago
Read 2 more answers
Other questions:
  • Two planes intersect in exactly one point.<br><br> A)always<br> B)sometimes<br> C)never
    11·1 answer
  • 2015 i was 4 feet 2 inches, and in 2016 i grew to 4 feet and 5 inches, what was the percent increase from 2015 to 2017.
    13·1 answer
  • Dividing decimal 0.572 ÷ 2.6
    11·2 answers
  • Max observes the zoo and the library from a helicopter flying at a height of 200 times square root of 3 feet above the ground, a
    8·2 answers
  • Can You help me with this question please.<br><br> Thanks In Advance.
    8·1 answer
  • The speed limit on a city road is 40 miles per hour.Which inequality best represents the speed s a person may drive in this neig
    13·2 answers
  • Help please i really need help, i appreciate it
    7·1 answer
  • What is the value of k?<br> k=<br> N<br> M
    14·2 answers
  • Who can me with this Help????
    10·1 answer
  • What is the domain of the following?<br><br><br><br> (-0,5)<br> (-4,9)<br> [-5,4]<br> (-0,00)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!