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
Alessia uses her bank card to buy lunch 3 times. Each time she buys lunch, it costs $12.50. She then deposits $30 in her bank ac
igomit [66]

Answer: She has a $-7.50 balance

Step-by-step explanation: A = 3*12.5

                                             A= 37.5

                                             37.5-30= -7.5

6 0
3 years ago
Read 2 more answers
13. NBT.4
slava [35]
B 0.05 since the thousandth digit is higher than 5, it needs to be rounded up.
7 0
3 years ago
−4−5+4+(−5)minus, 4, minus, 5, plus, 4, plus, left parenthesis, minus, 5, right parenthesis.
Tema [17]

Answer: -10

Step-by-step explanation: For this problem we will solve the numbers in order.

-4 - 5 + 4 + (-5)

First subtract -4 - 5, which will give you -9. Then add -9 to 4, which will give you -5. Lastly add -5 plus -5, which will give you an answer of -10.

3 0
3 years ago
The nth term of a sequence is n²+1. What is the 9th term?
Dimas [21]
Replacing 9 for the nth term of the sequence we get 9^2 + 1 = 82, Therefore the 9th term is = 82
5 0
3 years ago
Which choices are equivalent to the expression below? Check all that apply square root -36
Mrac [35]
-6 or -3 if that is a choice.hope it hepls
7 0
3 years ago
Read 2 more answers
Other questions:
  • Find an equation in slope-intercept form of the line that has slope –8 and passes through point (1,5)
    10·1 answer
  • If cos(x)cos(π/7)+sin(x)sin(π/7)= - (√2)/2, then x can equal:
    15·1 answer
  • 8x - 2y =48 y=4 what does x =
    7·2 answers
  • If Michelle walked 5 meters, how many inches did she walk?
    6·2 answers
  • The bill for a meal at a restaurant before tax is $84.00. the sales tax rate is 7% and you want to leave a 20% tip based on the
    12·1 answer
  • What is the lowest value in the set of data represented by the following box-and-whisker plot?
    9·2 answers
  • Suppose a city with population 900000 has been growing at a rate of 7​% per year. If this rate​ continues, find the population o
    5·2 answers
  • Please help me out i will mark brainliest i need help on this! Its plot dot and dot plotting!
    5·1 answer
  • Marty got a score of 45 with two throws on this dart board. Which two categories did he hit
    6·2 answers
  • I need help pleaseee
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!