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
Yakvenalex [24]
3 years ago
14

May someone please help me? If not I understand-

Mathematics
2 answers:
Stells [14]3 years ago
7 0
8.124?!? I would explain how to do it on a calculator but forgot
mestny [16]3 years ago
6 0

Answer:

8.124

Step-by-step explanation:

on the calculator you put the number 66 then put the math symbol

You might be interested in
Find the area of the L shape.<br>9 cm<br>8 cm<br>3 cm<br>20 cm​
AfilCa [17]

Answer:

Step-by-step explanation:

(9*20)-(8*6) = 132 sq cm

5 0
3 years ago
Kyle rides his bicycle 15 mph for 2 hours how far does he travel
Cerrena [4.2K]

Answer:

30mph

Step-by-step explanation:

Kyle rides his bike 30mph,

15mph x 2hrs = 30 mph.

15 miles per hour x 3 is 30mph total.

Hope this helps!

4 0
3 years ago
Read 2 more answers
Use the method of Gauss to find the sum.1+2+3+.....+400
nikklg [1K]
Gauss' method for addition relies on the fact that you can 'pair' certain numbers together. Look at the example:

1+2+3+4+5+6+7+8+9+10

We could manually add all these together from left to right but a clever way to think about this is if we add together the ends of the sum (10+1) we get 11. If we then move one in from the ends and add these (2+9) we also get 11. This means that 1+2+...+9+10 is the same as 11+11+...+11+11.

Because each 2 numbers adds to 11 we know the total number of 11's we have to add together is the length of the sum divided by 2. In our case 5 (10 ÷ 2). We need to add 5 lots of 11 to get our answer. This is the same as 11 × 5 which is easily seen to be 55.

(If you add the 10 numbers together on a calculator you'll see 1+2+3+4+5+6+7+8+9+10 = 55) so this method really makes it a lot quicker.

Looking at your sequence, if we pair the ends together we get 401 (400+1) and we multiply this by the length of the sequence divided by 2. In your case, 200 (400 ÷ 2).

So the sum of all the numbers from 1 to 400 must be 401 × 200 = 80,200.

Remember the steps:
1. Pair the ends together and add them
2. Times this number by the length of the sequence halved

Hope this helps.
6 0
3 years ago
Express as a trinomial: (2x+10)(x-9)
Alborosie
(2x + 10)(x - 9)
2x(x - 9) + 10(x - 9)
2x(x) - 2x(9) + 10(x) - 10(9)
2x² - 18x + 10x - 90
2x² - 8x - 90
5 0
2 years ago
It takes layla 2/5 hour to swim 1/2 mile what is the unit rate of miles that layla can swim per hour
Mazyrski [523]

Good Morning!


Distance = rate x time


1/2 mile = R x 2/5 hour


1/2=2/5R


/2/5 /2/5


R=1/2 x 5/2


R=1 1/4


She can swim 1 1/4 per hour.


I hope this helps! :)

4 0
3 years ago
Other questions:
  • A company make concrete bricks shaped like rectangular prisms.
    7·1 answer
  • Os numeros 5, (3x-1) (3x+2) nessa ordem formam uma PA. Calcule o valor de x
    13·1 answer
  • What is the unit rate for 14 lb for $2.99
    6·1 answer
  • What is the area of a square with the side length pq?
    5·2 answers
  • Plz help for points and stars
    5·1 answer
  • Suppose A and B are dependent events.if P(A)=0.5 and P(B)=0.6
    9·2 answers
  • Use the relationships between the angles to find the value of x.
    7·2 answers
  • Plsss help if you can! I will mark you brainliest, give thanks, and 5 stars, and friend invite if you are correct!!
    15·2 answers
  • Image down below thx:)
    12·1 answer
  • PLEASE PLEASE SOMEONE HELP. ILL MARK YOU BRAINLY ANSWER ASAP
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!