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
Paha777 [63]
3 years ago
11

30 Points! please help!

Mathematics
1 answer:
SVEN [57.7K]3 years ago
3 0

Answer:

18) 4 * 10 ^ -10

19) t ^ 9

Step-by-step explanation:

18. When multiplying in scientific notation, just multiply the regular numbers together and add the exponents for the tens.

So it'll be 40 * 10^-11

However, the beginning number should have the decimal right after the 4, not any place after (for example, it's 3.056, not 30.56 or 3056.)

To fix this, move the decimal place forward one space from 40. to 4.0, and add 1 to the -11 power.

So the answer is now 4 * 10^-10

19. When dividing exponents, if the base number is the same, you can divide. (Basically, you can not divide x^2 and y^3 because x and y aren't the same)

Since in this case it's t, you can divide.

Dividing exponents is simple: just subtract them.

14 - 5 = 9

so the answer is t ^ 9

You might be interested in
Mrs. Johnson is renting a car for vacation and plans to drive a total of 800 Miles. A rental car company charges $153 for the we
ch4aika [34]
No, she cannot afford the car. 
The total would be $176, and she only has $160.

Hope this helps!!
~Kiwi
6 0
3 years ago
Read 2 more answers
Given a regular decagon, find the measures of the angles formed by (
Sonja [21]
A decagon has 10 sides (think decade and decathlon). From the center of the decagon we draw the radii and in doing so we take the area of the decagon and divide it into 10 congruent Triangles.

The angles around the center add up to 360 because they form a circle and since there are 10, they each measure 36 degrees. So the answer to the first part (the angle between the radii) is 36 degrees.

Each of these triangles has two equal sides (both radii) so is Isosceles. That means that the base angles are congruent. So the two angles that are left in each triangle must measure the same. Since the angles in a triangle add up to 180 degrees, we know that the two remaining angles are together equal to 180-36=144 degrees. Since they are equal in measure they each measure 72 degrees.

Thus the answer to the second part, trhe measure of the angle between a radius and the side of the polygon is 72 degrees.




3 0
3 years ago
How would you change the graph of y = x²<br> to produce the graph of y = x2 – 5,
KatRina [158]

9514 1404 393

Answer:

  shift it down 5 units

Step-by-step explanation:

Subtracting 5 from every y-value moves the graph down 5 units.

To make the new graph, translate every point down 5 units.

6 0
2 years ago
Which operation would you do third in the following problem?
Anastasy [175]

Answer:

multiplication

Step-by-step explanation:

it seems the best

6 0
2 years ago
HOW is anybody supposed to find the answer to this pre calc question???? Express the complex number in trigonometric form. -2 Ho
Rama09 [41]
It has to do with the unit circle, I think it is A because it should be 2(0+ (-1)) but I would probably wait for someone to come behind me and explain it better sorry couldn't help more
4 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose that the amount of time one spends in a bank is exponentially distributed with an average frequency of 6 customers per h
    5·1 answer
  • The weight of softballs is uniformly distributed over the interval of 8 to 12 ounces, inclusively. what is the probability that
    12·1 answer
  • Use the binomial theorem to expand the binomial (x + -2y)8.
    13·1 answer
  • Here is an addition sentence
    6·2 answers
  • After eliminating radicals, what quadratic equation can you solve to find the potential solutions of ..
    8·1 answer
  • Kelly rolls two number cubes 50 times. After each roll, she records whether the number on
    6·2 answers
  • Trevor paints 1/6 of the fence surrounding his farm each day. How many days will it take him to paint 3/4 of the fence?
    5·1 answer
  • Someone plz help me!!!!!!!!!
    10·1 answer
  • When 0.5(20x – 50y + 36) – 0.25(–100x + 40y – 12) is simplified, what is the resulting expression?
    14·1 answer
  • Write and solve the equation that represents the sentence below.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!