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
jeka94
3 years ago
13

I am child in the family

Mathematics
2 answers:
Orlov [11]3 years ago
7 0

Answer:

So,you r saying that you r the only 1 child in your family....

uranmaximum [27]3 years ago
5 0

Answer:

why this question ?!

giving points?!

You might be interested in
Michael’s favorite cereal is Cinnamon Toast Crunch. His mom buys him a big box for a special treat, and he wants to figure out e
Sauron [17]

Answer:

he made a good choice, the width is: 4 inches

Step-by-step explanation:

12 x 8 x _<u>4_</u> = 384

3 0
3 years ago
Given that the expression 2x^3 + mx^2 + nx + c leaves the same remainder when divided by x -2 or by x+1 I prove that m+n =-6
Alla [95]

Given:

The expression is:

2x^3+mx^2+nx+c

It leaves the same remainder when divided by x -2 or by x+1.

To prove:

m+n=-6

Solution:

Remainder theorem: If a polynomial P(x) is divided by (x-c), thent he remainder is P(c).

Let the given polynomial is:

P(x)=2x^3+mx^2+nx+c

It leaves the same remainder when divided by x -2 or by x+1. By using remainder theorem, we can say that

P(2)=P(-1)              ...(i)

Substituting x=-1 in the given polynomial.

P(-1)=2(-1)^3+m(-1)^2+n(-1)+c

P(-1)=-2+m-n+c

Substituting x=2 in the given polynomial.

P(2)=2(2)^3+m(2)^2+n(2)+c

P(2)=2(8)+m(4)+2n+c

P(2)=16+4m+2n+c

Now, substitute the values of P(2) and P(-1) in (i), we get

16+4m+2n+c=-2+m-n+c

16+4m+2n+c+2-m+n-c=0

18+3m+3n=0

3m+3n=-18

Divide both sides by 3.

\dfrac{3m+3n}{3}=\dfrac{-18}{3}

m+n=-6

Hence proved.

7 0
3 years ago
Factor 20w - 15.<br> please someone help!
CaHeK987 [17]

Answer:

5( 4w -3)

Step-by-step explanation:

just pulled out a 5

6 0
3 years ago
Read 2 more answers
The annual rainfall in a certain region is approximately normally distributed with mean 41.4 inches and standard deviation 5.7 i
stich3 [128]

Complete question :

The annual rainfall in a certain region is approximately normally distributed with mean 41.4 inches and standard deviation 5.7 inches. Round answers to the nearest tenth of a percent. a) What percentage of years will have an annual rainfall of less than 43 inches? b) What percentage of years will have an annual rainfall of more than 39 inches? c) What percentage of years will have an annual rainfall of between 38 inches and 42 inches?

Answer:

0.61053

0.66314

0.26647

Step-by-step explanation:

Given that :

Mean (m) = 41.4 inches

Standard deviation (s) = 5.7 inches

a) What percentage of years will have an annual rainfall of less than 43 inches?

P(x < 43)

USing the relation to obtain the standardized score (Z) :

Z = (x - m) / s

Z = (43 - 41.4) / 5.7 = 0.2807017

p(Z < 0.2807) = 0.61053 ( Z probability calculator)

b) What percentage of years will have an annual rainfall of more than 39 inches? c)

P(x > 39)

USing the relation to obtain the standardized score (Z) :

Z = (x - m) / s

Z = (39 - 41.4) / 5.7 = −0.421052

p(Z > −0.421052) = 0.66314 ( Z probability calculator)

What percentage of years will have an annual rainfall of between 38 inches and 42 inches?

P(x < 38)

USing the relation to obtain the standardized score (Z) :

Z = (x - m) / s

Z = (38 - 41.4) / 5.7 = −0.596491

p(Z < −0.596491) = 0.27545 ( Z probability calculator)

P(x < 42)

USing the relation to obtain the standardized score (Z) :

Z = (x - m) / s

Z = (42 - 41.4) / 5.7 = 0.1052631

p(Z < 0.1052631) = 0.54192 ( Z probability calculator)

0.54192 - 0.27545 = 0.26647

6 0
3 years ago
A monument casts a 40 ft shadow. Adam is 6 ft tall and casts a 5 foot shadow. How tall is the monument
OLga [1]
The answer is 48 feet (D).

Explanation:

To solve this, you must think of the monument and its shadow and Adam and his shadow as a triangle, the person/object being the vertical leg, the shadows being the horizontal leg, and a line connecting them being the hypotenuse.  Also, we can assume that these triangles are similar.  First, we can set the scale to be 40/5 (the two shadows set a scale because the triangles are similar).  Then, we can put x/6 (the actual things are similar, and the scale was established to be building/measurement).  Next, we can set the two fractions equal to each other (40/5 = x/6) and solve.  We can cross multiply to get 5x = 40 * 6.  That goes to  5x = 240.  Finally, we can divide by five on each side to get x = 48 feet (D).
3 0
3 years ago
Other questions:
  • An airplane flies 105 miles in 1/2 hour. how far can I fly in 1 1/2 hours at the same rate of speed?
    8·1 answer
  • find the present value of an investment that is worth $19,513.75 after earning 3percent simple interest for 5.5 years
    7·1 answer
  • Please help (angles)​
    5·1 answer
  • GCF and sum of 28 + 35
    9·2 answers
  • I need a lot of help with this plz someone help!
    14·2 answers
  • HighTech Inc. randomly tests its employees about company policies. Last year in the 560 random tests conducted, 26 employees fai
    9·1 answer
  • Please help(ik it’s not c)
    10·2 answers
  • Please help i will mark brainliest (15 Points ) HELP PLEASE
    6·2 answers
  • The model below can be used to find the quotient of one over two divided by one over six. What is the quotient?
    15·1 answer
  • Adriana can ride her bicycle
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!