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Sedbober [7]
3 years ago
12

I NEED HELP WITH THESE TWO QUESTIONS PLEASE!!!!!!! I"LL GIVE THE BRAIN THINGY TOO!!!!

Mathematics
1 answer:
pentagon [3]3 years ago
4 0

Answer:

1231.5 is correct =)

Step-by-step explanation:

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If A={1,5,9}and B={y:y=2x-1;x=1,5,9},find A×B and B×A.​
Umnica [9.8K]

Step-by-step explanation:

you can see the steps above

6 0
3 years ago
01:36:08
Angelina_Jolie [31]

Answer:

check online for more information

7 0
2 years ago
The hypotenuse of a right triangle is twice the length of one of its legs. The length of the other leg is three feet. Find the l
aliya0001 [1]

a^2 + b^2 = c^2

Let c = hypotenuse = 2x

One of the legs = x. Let a or b = x.

I will let a = x. We can then say that b = 3.

3^2 + x^2 = (2x)^2

9 + x^2 = 4x^2

9 = 4x^2 - x^2

9 = 2x^2

9/2 = x^2

sqrt{9/2} = sqrt{x^2}

3/sqrt{2} = x

Rational denominator.

[3•sqrt{2}]/2 = x = a

Side 3 is given to be 3 feet. So, b = 3.

Hypotenuse = 2x

Hypotenuse = 2([3•sqrt{2}]/2)

Hypotenuse = 3•sqrt{2}

Understand?

The three sides are 3, [3•sqrt{2}]/2 and

3•sqrt{2}.

5 0
3 years ago
What is the value of b for the following circle in general form? x2 + y2 + ax +by+c=0​
liberstina [14]

Answer:

Step-by-step explanation:

<u><em>(1).</em></u> (x - <em>h</em>)² + (y - <em>k</em>)² = <em>r</em>²

where <em>(h, k)</em> are coordinates of a center of the circle with radius <em>r</em>

<u><em>(2).</em></u> ( a ± b )² = a² ± 2ab + b²

~~~~~~~~~~~~~~

( 1 , - 2 ) ; r = 3

( x - 1 )² + ( y + 2 )² = 3²

x² - 2x + 1 + y² + 4y + 4 = 9

x² + y² - 2x + 4y - 4 = 0

a = - 2

b = 4

c = - 4

7 0
2 years ago
What is the difference from point F at (2,-3) to point G at (9,-3)? Show all work.
LenaWriter [7]
A 7 units.  -3 is the same in each, so you just find the difference between 9 and 2
5 0
3 years ago
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