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
worty [1.4K]
3 years ago
5

Simplify 22x-13y+19-17y-43x+12

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
7 0

Answer:

-21x-30y+31

Step-by-step explanation:

You might be interested in
In a certain​ country, the true probability of a baby being a girl is 0.469. Among the next seven randomly selected births in th
-BARSIC- [3]

Answer:

The probability is 0.995 ( approx ).

Step-by-step explanation:

Let X represents the event of baby girl,

The probability of a baby being a girl is, p = 0.469,

So, the probability of a baby who is not a girl is, q = 1 - 0.469 = 0.531,

Also, the total number of experiment, n = 7

Thus, by the binomial distribution formula,

P(x)=^nC_x(p)^x q^{n-x}

Where, ^nC_x=\frac{n!}{x!(n-x)!}

The probability that all babies are girl or there is no baby boy,

P(X=7)=^7C_7(0.469)^7(0.531)^{7-7}

=0.00499125661758

Hence, the probability that at least one of them is a boy​ = 1 - P(X=7)

= 1 - 0.00499125661758

= 0.995008743382

≈ 0.995

8 0
3 years ago
A pair of hiking boots originally priced at $170 is on sale for 10% off. What is the sale price of the boots?
Marizza181 [45]
The sale price of the hiking boots is $153
5 0
3 years ago
Read 2 more answers
Vicky reads at a constant rate. She can read 5 pages in 9 minutes. Write an equation to represent her constant rate
REY [17]

Answer:

15------_&667-&&677

6 0
3 years ago
To get an A in a course, you must have an average of at least 90% on four tests worth 100 points each. Your scores so far are 85
kondaur [170]

Answer:

A score of 117 is needed, which Is not possible since the test is over 100.

Step-by-step explanation:

The other 3 scores are 85, 94,84 . Let's x be the 4th score he must score.

Therefore ( 85 + 94 + 84 + X)/4 =95

Then 263+X /4 =95

Cross mutiplying 4*95=263+X

Therefore X= 380-263

X= 117 which is not possible since the test score is over 100.

6 0
3 years ago
Surface area of a half pipe if it is 7m
Monica [59]

Answer:

Radius = 2.5 m Length = 7 m Half cylinder formula- ½ (pi r^2) + (2 pi R h) Pi x 2.5^2 + 2 x pi x 2.5 x 7

129.5906969 x .5 = 64.795348 m^2 The surface area of the half pipe is 65 m^2.


7 0
3 years ago
Read 2 more answers
Other questions:
  • How much would $ 300 invested at 3% interested compounded monthly be worth after 3 years
    6·1 answer
  • The ratio of boys to girls in Anya's class is 10 to 15. There are 20 boys how many girls are there
    14·1 answer
  • Write the absolute value equation if it has the following solutions. Hint: Your equation should be written as x−b =c. (Here b an
    9·2 answers
  • Trish opens a savings account with $1,000. The account does not earn interest. She withdraws $100 each month. The bank created a
    8·1 answer
  • F(x)=x^2 what is g(x)
    11·1 answer
  • When you owe money, you have a negative balance. You owe $200 to your bank. You pay $30 back. What is your new bank balance?
    11·2 answers
  • Worth brainliest!!
    6·2 answers
  • First person to correctly answer will get brainliest
    15·1 answer
  • What is 24.461 rounded to the nearest tenth
    11·2 answers
  • Find the distance between points S(−2,4) and T(3,9). Round your answer to the nearest tenth.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!