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Kisachek [45]
3 years ago
12

True or False:

Mathematics
2 answers:
DIA [1.3K]3 years ago
7 0
True. If you're just changing the form, yes. But remember when you change one side of an equation, you must change the other in the same way.
Jet001 [13]3 years ago
7 0
True if you change the form of one side you should change the form on the other side as well
hope this helps :)
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Two cards are chosen from a standard deck of 52 playing cards without replacement. What is the probability that the first card i
Rashid [163]

For the first draw, the probability of an ace is ( 4 / 52 ).

Now there are only 51 cards left in the deck.

For the second draw, the probability of a king is  ( 4 / 51 ).

The probability of both events is

(4/52) (4/41) = (16/2,652)

Divide top and bottom by 4:

(16/2,652) = <em>4/663</em> .  That's <em>choice-C </em>.

6 0
3 years ago
The question is in the picture (:
Arte-miy333 [17]

Answer:

\frac{(x - 2)(x + 2)}{x - 8}

6 0
2 years ago
Read 2 more answers
How many solutions are there for the system x^2+4y^2=100 and 4y-x^2=-20
never [62]
There are 5 solutions for this system.

x^2 + 4y^2 = 100  ____1
4y - x^2 = -20  ____2
Add both 1 & 2 together. x^2 gets cancelled
4y^2 + 4y = 80   (send 80 to the other side and divide by 4)
Then equation the becomes : y^2 + y -20 =0
Now factorise the equation: (y+5) (y-4) = 0
Solve for y :  y = -5 and y = 4
Using the values of y to find the values of x. From equation 1:
x^2 = 100 - 4y^2    x = /100 - 4y^2  (/ means square root) Replace values of y
y = -5, x = /100 - 4(-5)^2 = /100 - 100 = 0
y = 4, x = /100 - 4(4)^2 = / 100 - 64 = /36 = -6 or 6
Thus we have 6 solutions y = -5, 4 and x = -6, 0, 6
6 0
3 years ago
Distance from the x-axis is 2
lapo4ka [179]
It would be 2,0 for the x and y
6 0
3 years ago
If (x) = 3x - 5 and g(x) = x + 3, find (f - g)(x).
Temka [501]

Answer:

2x -8

Step-by-step explanation:

f (x) = 3x - 5

g(x) = x + 3,

(f - g)(x) = 3x - 5 - ( x+3)

Distribute the minus sign

            = 3x-5 -x-3

Combine like terms

           = 2x -8

8 0
3 years ago
Read 2 more answers
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