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
Sever21 [200]
3 years ago
6

Some strategies of how to simplify an expression like 2x-5b+5x

Mathematics
1 answer:
bezimeni [28]3 years ago
7 0
<span>2x - 5b + 5x

<em>Arrange all the like terms together</em>
</span>2x + 5x - 5b 
<span>
<em>Combine all like terms</em>
7x - 5b</span>
You might be interested in
Tom had a total of $220 and he spent $35 on a basketball ticket . What percent of his money did he have left?
RoseWind [281]

Answer: 84.09%


Step-by-step explanation:

1. 220-30=? ?=185

2. Divide 185 by 220 (as a fraction, 185 out of 220 is 185/220 which also means divide) 185 divided by 220 is about 0.8409

3. Multiply 0.8409 by 100 (since there is two zeros in 100 we can move the decimal to the right twice which gets you 84.09



8 0
3 years ago
Suppose that 10% of all homeowners in an earthquake-prone area of California are insured against earthquake damage. Four homeown
guapka [62]

Remainder of question:

Find the probability distribution of x

Answer:

The random variable x is defined as: X = {0, 1, 2, 3, 4}

The probability distribution of X:

P(X = 0) = 0.656

P(X = 1) = 0.2916

P(X= 2) = 0.0486

P(X=3) = 0.0036

P(X = 4) = 0.0001

Step-by-step explanation:

Sample size, n = 4

Random variable, X = {0, 1, 2, 3, 4}

10% (0.1) of the homeowners are insured against earthquake, p = 0.1

Proportion of homeowners who are not insured against earthquake, q = 1 - 0.1

q = 0.9

Probability distribution of x,

P(X = r) = ^nC_r *p^r q^{n-r} \\\\P(X= 0) =(^4C_0 *p^1 q^4 )\\P(X=0) = (^4C_0 *0.1^0 0.9^4 ) = 0.656\\P(X= 1)= (^4C_1 *p^1 q^3 )\\P(X=1) = (^4C_1 *0.1^1 0.9^3 ) = 0.2916\\P(X= 2)=( ^4C_2 *p^2 q^2) \\P(X=2) = (^4C_2 *0.1^2 0.9^2 ) = 0.0486\\P(X= 3) = (^4C_3 *p^3 q^3) \\ P(X=3) = (^4C_3 *0.1^3 0.9^1 ) = 0.0036\\P(X= 4) =  (^4C_4 *p^4 q^0 )\\ P(X=4) =(^4C_4 *0.1^4 0.9^0 ) = 0.0001

5 0
3 years ago
QUESTION 8 The probability of concluding that assignable variation exists when only random variation is present is: (I) the prob
Juliette [100K]

Answer:

I, II, and IV

Step-by-step explanation:

(I) the probability of a Type I error.

(II) known as the alpha risk.

(IV) the sum of probabilities in the two tails of the normal distribution.

3 0
3 years ago
PLS HELP ME ASAP FOR 42!! (MUST SHOW WORK!!) + LOTS OF POINTS!! *no calculator* *best if show work on picture*
Tpy6a [65]
It's 2.5 bc it goes up by 2.5 everytime
4 0
3 years ago
What is 2 hours and 20 minutes as a fraction
Mrac [35]

Answer:

2333/1000 I believe

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • The following data points represent the number of children in each household on Maple Street. \qquad 0, 1, 2, 1, 20,1,2,1,20, co
    12·1 answer
  • Really need some help on this please!
    7·2 answers
  • The answer to the problem 3(6 - 7) + 8 is called a ____________. A). difference. B). product. C). quotient. D). sum
    10·2 answers
  • Построить 12 и 5 угольник со стороной 4 см; найти их внутренние углы, площадь, периметр. 20 баллов
    11·1 answer
  • Carly bought 3 pounds of birdseed.how many ounces of birdseed did she buy
    5·2 answers
  • PLEASE HELP ASAP ILL MAKE BRAINLIEST
    14·1 answer
  • the school store has1200 pendls in stock and sells and sells an average of 25 pencils per day the manager reorders when the numb
    9·1 answer
  • Given the function<br> Calculate the following values:<br> f( - 1) =<br> f(0)<br> f(2)=
    12·1 answer
  • X<br> 7 cm<br> 14 cm<br> Pls help if u can
    8·1 answer
  • Solve for x to the nearest degree.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!