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inna [77]
3 years ago
14

Add - 3/x + 7y/x . -4y/2x -3 + 7y/x - 10y/x -3 + 7y/2x

Mathematics
1 answer:
yanalaym [24]3 years ago
3 0

Answer:

-\frac{3}{x} + \frac{7y}{x} = \frac{-3+ 7y}{x}

Step-by-step explanation:

Given

-\frac{3}{x} , \frac{7y}{x}

Required

Add

The statement can be interpreted as:

-\frac{3}{x} + \frac{7y}{x}

Take LCM

-\frac{3}{x} + \frac{7y}{x} = \frac{-3+ 7y}{x}

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how many ways can we award a 1st, 2nd, and 3rd place prize among eight contestants? A) 336 B.) 56 C.) none of these D.) 40320​
alekssr [168]

the answer is A.336

Explanation:

There are 8 choices for awarding first prize.Then there are 7 choices for awarding second prize.And there are 6 choices for awarding third prize.

Therefore, there are: 8 *7 *6 =336 ways.

4 0
4 years ago
Read 2 more answers
A box contains 14 large marbles and 10 small marbles. Each marble is either green or white 8 of the large marbles are green, and
netineya [11]

The probability that the marble is large or white is 0.5714.

<h3>What is probability?</h3>

Probability is the branch of mathematics that studies the possible outcomes of given events together with the outcomes' relative likelihoods and distributions.

Probability of an event is

P(A) = Number of favorable outcomes/ Total Number of outcomes      

       = n(A)/n(S)

where

P(A) is the probability of an event “A”

n(A) is the number of favorable outcomes

n(S) is the total number of events in the sample space.

We have,

Number of large marbles = 14

Number of small marbles = 10

Number of large green marbles = 8 which implies

Number of large white marbles = 14 - 8 = 6

Number of small white marbles = 4 which implies

Number of small green marbles = 10 - 4 = 6.

Now, let

Let X be the event of drawing large marble.

Let Y be the event of drawing small marble.

Let M be the event of drawing white marbles.

Let N be the event of drawing green marbles.

Since only one marble is drawn at a time ,

so P(X) =  14/24

    P(Y) = 10/24

    P(M) = 10/24

    P(N) = 14/24

We have to find the probability that a marble is large or white i.e. P(X∪M).

P(X∪M) = P(X) + P(Y) - P(X∩M)

P(X∩M) = In 14 large marbles 6 are white marbles = 6/14.

P(X∪M) = P(X) + P(Y) - P(X∩M) = 14/24 + 10/24 - 6/14 = 0.5833+0.4167-0.4286 = 0.5714.

Therefore, the probability of drawing large or white marble is 0.5714.

To know more about probability, visit

brainly.com/question/19169117

#SPJ4

3 0
1 year ago
CAN SOMEONE PLEASE HELP ME
zysi [14]

it is a rotation ........

5 0
3 years ago
Read 2 more answers
This one please if you can​
Deffense [45]

1.Given, x={p,q}.

Now, possible subsets of x are ϕ,{p},{q},{p,q}.

2.if A = fa b, c. d, e and B of a, e, i, o, u. list the elements of B - A and also show it in a venn diagram by

shading

hope it helps

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7 0
3 years ago
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∫ (3x²-2)/x³ dx<br><br> help
pychu [463]
We will use integration by substitution, as well as the integrals
∫
1
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d
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|
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+
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and
∫
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d
x
=
x
+
C
∫
x
3
x
2
+
1
d
x
=
∫
x
2
x
2
+
1
x
d
x
=
1
2
∫
(
x
2
+
1
)
−
1
x
2
+
1
2
x
d
x
Let
u
=
x
2
+
1
⇒
d
u
=
2
x
d
x
. Then
1
2
∫
(
x
2
+
1
)
−
1
x
2
+
1
2
x
d
x
=
1
2
∫
u
−
1
u
d
u
=
1
2
∫
(
1
−
1
u
)
d
u
=
1
2
(
u
−
ln
|
u
|
)
+
C
=
x
2
+
1
2
−
ln
(
x
2
+
1
)
2
+
C
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x
2
2
−
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(
x
2
+
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)
2
+
1
2
+
C
=
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Final answer
4 0
4 years ago
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