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
Dmitry [639]
3 years ago
14

Serena is writing an expression that is equivalent to 12ab - 6b, but she has not completed it. ? (2a - 1) What is missing from t

he expression?
Mathematics
1 answer:
zysi [14]3 years ago
3 0
12ab - 6b = (2a-1)(6b)
You might be interested in
Since 2010, when 102390 Cases were reported, each year the number of new flu cases decrease to 85% of the prior year. Predict th
BaLLatris [955]

Answer:

20,158 cases

Step-by-step explanation:

Let t=0 represent year 2010.

We have been given that since 2010, when 102390 Cases were reported, each year the number of new flu cases decrease to 85% of the prior year.

Since the flu cases decrease to 85% of the prior year, so the flu cases for every next year will be 85% of last year and decay rate is 15%.

We can represent this information in an exponential decay function as:

F(t)=102,390(1-0.15)^t

F(t)=102,390(0.85)^t

To find number of cases in 2020, we will substitute t=10 in our decay function as:

F(10)=102,390(0.85)^{10}

F(10)=102,390(0.1968744043407227)

F(10)=20,157.970260446597\approx 20,158

Therefore, 20,158 cases  will be reported in 2020.

3 0
3 years ago
A number divided by 80 with a quotient of 7 and a remainder of 4
Lerok [7]
I dont have the * exact answer * but i got 11 or 12. Hope this helps :))
5 0
3 years ago
Simplify (reduce) 8/30 it is a fraction
defon
4/15 is it's lowest terms. 2 is the lowest number that goes into both 8 and 30. It goes into 8 four times, and 30 15 times.
~Silver
3 0
3 years ago
I’ll give brainliest if you answer quick!!!
Katarina [22]

Area is square units, so the new area would be the scale factor squared:

Scale factor is 2, so the area would increase by 2^2 = 4

The answer is B.4

3 0
3 years ago
Read 2 more answers
A card is drawn from a standard deck of 5252 playing cards. What is the probability that the card will be a heart or a face card
mr_godi [17]

Answer:

The probability that the card will be a heart or a face card is P=0.4231.

Step-by-step explanation:

We have a standard deck of 52 cards.

In this deck, we have 13 cards that are a heart.

We also have a total of 12 face cards (4 per each suit). So there are 3 face cards that are also a heart.

To calculate the probability that a card be a heart or a face card, we sum the probability of a card being a heart and the probability of it being a face card, and substract the probability of being a heart AND a face card.

We can express that as:

P(H\,or\,F)=P(H)+P(F)-P(H\&F)\\\\P(H\,or\,F)=13/52+12/52-3/52=22/52=0.4231

4 0
3 years ago
Other questions:
  • I need help with #18 please
    10·2 answers
  • CAN SOMEONE PLEASE EXPLAIN HOW TO FIND THE AREA IN MATH!!!!! I’m in 8th grade
    11·2 answers
  • Convert 12.5 miles to inches
    12·2 answers
  • Subtract. Write your answer in simplest form. 7 1/15 - 3 4/5
    8·2 answers
  • For one month Siera calculated her home town's average high temperature in degrees Fahrenheit. She wants to convert that tempera
    11·2 answers
  • Last month there was 4 sunny days for every raining day
    13·1 answer
  • Math question for 30 points please answer correctly
    5·1 answer
  • CAN SOMEONE HELP ME WITH THIS PLEASE AND THANK YOU
    10·2 answers
  • If the cost of 20 stamps is $9.80, how<br> much will 1 stamp cost?
    10·1 answer
  • 65.6g of sugar is needed to make 8 cakes. How much sugar is needed for 5 cakes?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!