3 years ago

Find the value of x is this problem

Mathematics

1 answer:

gladu [14]3 years ago

4 0

Check the picture below

solve for "x"

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Helppp!!!!laura is playing a card game with her friend.she will draw two cards from those pictured.

puteri [66]

Answer:

30%

Step-by-step explanation:

In this case it would be the combination of 2 taken from 5.

That is, when n = 5 and r = 2

nCr = n! / r! * (n-r)!

replacing

5C2 = 5! / (2! * 3!)

5C2 = 10

Which means that the sample space is 10 possible combinations.

the probability that the card you draw is even is 3/5, since there are 3 even cards that exist and 5 is the total number of cards.

Now, so that both are for it would be the multiplication of the previous probability and 2/4 because an even card and a card in general have already been drawn:

(3/5) * (2/4) = 0.3

So the probability that both are even is 30%

5 0

3 years ago

Which expression is equivalent to 2^4 ⋅ 2^−7?

yaroslaw [1]

Remember
$(x^m)(x^n)=x^{m+n}$
and
$x^{-m}=\frac{1}{x^m}$

so
$(2^4)(2^{-7})=$
$2^{4-7}=$
$2^{-3}=$
$\frac{1}{2^3}=$
$\frac{1}{8}$

8 0

2 years ago

Read 2 more answers

The number of students at Maria's school decreased by 98% of last year's number currently there are 1170 students how many stude

Vitek1552 [10]

X=number of students at Marita's high school last year
98%=.98
.98x=1170
x=1170/.98
x=1194

3 0

2 years ago

Perform the indicated row operation:

alexandr1967 [171]

Answer:

answers down below

Step-by-step explanation:

lol i hope it's this one

5 0

2 years ago

Read 2 more answers

Math help please right answer

kvasek [131]

Answer:

135°

Step-by-step explanation:

The sum of interior angles in this rectangle is equal to 720

Two of the angles are right (has 90°)

so 4x + 180 = 720 subtract 180 from both sides

4x = 540 divide both sides by 4

x = 135°

6 0

3 years ago