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
user100 [1]
3 years ago
6

How you could multiple 6×99 in your head?

Mathematics
2 answers:
Andrew [12]3 years ago
4 0
99 is 1 less than 100.
(100-1)×6

100×6=600
-1×6=-6

600-6=<span>594

Answer: 594</span>
NeTakaya3 years ago
4 0
Since 99=100-1,
we use the distribution property,
6(99)=6(100-1)=600-6 = 594

With minimum practice, the technique can be mastered in a short time.

For example, 15*998 = 15(1000-2) =15000-30=14970
You might be interested in
<img src="https://tex.z-dn.net/?f=%5Clarge%5Cmathfrak%7B%7B%5Cpmb%7B%5Cunderline%7B%5Corange%7BQuestion%20%7D%7D%7B%5Corange%7B%
VashaNatasha [74]

Answer:

29

Step-by-step explanation:

As it is a list of prime number, the sequence continues with 29 being the next prime number after 23.

6 0
3 years ago
P- 6= -5 what is the answer (NEED HELP)
slega [8]

Answer:

P=1

Step-by-step explanation:

1-6=-5

3 0
3 years ago
How do you find the radius of a cylinder when you only know the surface area?
Paha777 [63]

The surface area of a cylinder with circular bases of radius <em>r</em> and height <em>h</em> is equal to the sum of the areas of the two circular faces and the area of the rectangular lateral surface:

<em>A</em> = 2π<em>r</em>² + 2π<em>rh</em>

If you know the height <em>h</em>, then you can solve the quadratic equation for <em>r</em>.

7 0
3 years ago
In the largest clinical trial ever​ conducted, 401,974 children were randomly assigned to two groups. The treatment group consis
BARSIC [14]

Answer:

The requirements for the hypothesis test does satisfied the method for testing the claim that from two population proportions the rate of polio is less for children given the salk vaccine.

Step-by-step explanation:

The percentage of children in the treatment group was:

(201229/401974)*100 = 49.9%

The percentage of children given placebo was:

(200745/401974)*100 = 50.1%

The percentage of children that developed polio in the treatment group:

(33/200745)*100 = 0.0164%

The percentage of children that developed polio in the placebo group:

(115/201229)*100 = 0.0571%

The percentage difference between the two group:

((0.0571-0.0164)/0.0571) = 61.62%

Therefore:

The amount of children used for each group was almost divided into half of the total amount of children. The test revealed although very small percentages of the both group developed polio, 68.62% more children given placebo than the children that was given the salk vaccine. Therefore, the study shows that the rate of polio is less for children given the salk vaccine and the the hypthesis test is satisfied.

6 0
3 years ago
Can some one play 1v1.lol<br><br> partycode:uswms5s
Alexandra [31]

Answer:

Sure I will play

8 0
3 years ago
Read 2 more answers
Other questions:
  • Amelia uses 66 patches of fabric per square foot to make a blanket. How many patches of fabric will she need to make a blanket t
    12·1 answer
  • Find k so that the distance from (–1, 1) to (2, k) is 5 units.
    13·1 answer
  • What is the answer please help
    10·2 answers
  • 10 years ago, Rapunzel had 19 centimeters of hair, now her hair is 20,193 centimeters long, how long has her hair grown? in scie
    12·1 answer
  • A telecommunications company offers two calling cards. The first card costs $25 for 750 minutes, while the second card costs $40
    6·1 answer
  • WILL GIVE BRAINLIEST
    11·2 answers
  • The low temperatures in Detroit for six days in February were -7ËšC, -3ËšC, 0ËšC, 2ËšC, -3ËšC, and 5ËšC. What was the average lo
    10·1 answer
  • Riley read five times as many pages as Jessica in the reading contest. If they read a total of 2,838 pages did Riley read ?
    11·2 answers
  • What is the answer to this problem
    13·2 answers
  • Hellpp please!!!!!!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!