All categories

3 years ago

9+10=? A. 21 B. 4 C. 19 D. 18

Mathematics

2 answers:

snow_tiger [21]3 years ago

8 0

The answer is c because if you have 9 legos and your friends gives you 10 You have now 19 legos

Bad White [126]3 years ago

6 0

Answer:

Step-by-step explanation:

Ten more than 9 is 19

You might be interested in

What is the first quartile of the following data set?<br> 15, 18, 20, 21, 23, 24, 26, 29, 34, 37, 40

nikklg [1K]

Answer:

20.5

Step-by-step explanation:

20 + 21 = 41. Divide 41 by 2 than you get 20.5.

3 0

3 years ago

Suppose that Prolog facts are used to define the pred- icates mother(M, Y) and father(F, X), which represent that M is the mothe

VikaD [51]

Answer and Explanation:

The Prolog rule expresses that logical implication (:-) describes the relationship between facts.

Prolog expressions are containing truth-functional symbols, which have the same intervention as in predicate calculus.

For example:

English Predicate calculus prolog

and ^ ,

or v ;

By using information, given in the question,

We can make prolog:

Grandfather(X, Y) :-mother(M,Y), father(X,M); father (F, Y), father(X,F)

Prolog (:- ) means define,

Prolog (,) represents a conjunction

And

Prolog (;) represent a disjunction

7 0

4 years ago

A student dropped a textbook from the top floor of his dorm and it fell according to the formula s(t) = −16t 2 + 8√t , where t i

Sidana [21]

Answer:

Step-by-step explanation:

Given the distance of fall of the student in term of the time t expressed by the equation s(t) = −16t² + 8√t, to get the average speed of fall of the pencil after 2.8 secs, we will need to differentiate the given function first since Velocity is the change in distance of a body with respect to time i.e

V = d(s(t))/dt

s(t) = −16t² + 8t^1/2

V = -32t+1/2(8)t^(1/2 - 1)

V = -32t+4t^-1/2

The average speed of the fall Using the fact that the pencil hit the ground in exactly 2.8 seconds, will be gotten by substituting t = 2.8 into the resulting equation.

V = -32t+4(2.8)^-1/2

V = -32t+4/√2.8

V = -32+4/1.6733

V = -32+2.391

v = -29.61m/s

<em>Hence the average speed of the fall is -29.61m/s</em>

3 0

3 years ago

Using elimination method, what will be the value of y after solving -x - y = 5 and -x + 4y = 15?

natka813 [3]

9514 1404 393

Answer:

y = 2

Step-by-step explanation:

The variable x can be eliminated by subtracting the first equation from the second.

(-x +4y) -(-x -y) = (15) -(5)

5y = 10 . . . . . . . simplify

y = 2 . . . . . . . . . divide by 5

4 0

3 years ago

In 2000, the population of a state was approximately 659 thousand. If the population decreased by 0.8% between 200 and 2009, fin

Aleks04 [339]

Answer:

613297

Step-by-step explanation:

The equation for exponential decay is y=A(1-r)^t

A=654,000

r (rate)=0.008 (0.8% as a decimal)

t=8 (2009-2000=8)

y=659,000(1-0.008)^8

y=613297.4028

Since you can't have part of a person, round: y=613297

3 0

3 years ago