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Usimov [2.4K]
3 years ago
10

Can someone please help me with this I’m being timed!!!! Just determine it solution, no solution , or infinitely many solution!!

!!!

Mathematics
1 answer:
sdas [7]3 years ago
4 0
X=3 Y=7 -only one solution

5x+1.5y=-4 10x+3y=-8 -infinitely many solutions

2.5x+39y=18 2.5x+39y=38 -no solution
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Given: PSTK - trapezoid m∠P = 90°, SK=13 PK = 12, ST = 8 Find: Area of PSTK
bazaltina [42]

Answer:

Area of PSTK = 50

Step-by-step explanation:

△SPK:

SK = 13, PK = 12

13^2 - 12^2 = SP^2

SP = 5

(8 + 12) /2 x 5 = 50  


5 0
3 years ago
Asap plz help maxium points will mark brainliest
jeka57 [31]

Given statement is False, if a light cost $3, it could be either Green or Yellow.

Converse: If the light bulb was Yellow, then the cost was $3 = True

Contrapositive makes both statements negative and switches the order of the original statement.

So something like:  If the light bulb is not yellow, then the cost would not be $3 = False because two colors cost the $3.

Inverse makes both statements negative but keeps the same order.

Something like : If the light bulb did not cost$3 then the light bulb was not yellow = False because two colors cost the $3.

4 0
4 years ago
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Which of these are measures of central tendency that can be found for this list of 11th-grade students' heights?
FinnZ [79.3K]
Mean A. is the answer
5 0
4 years ago
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Determine as a linear relation in x, y, z the plane given by the vector function F(u, v) = a + u b + v c when a = 2 i − 2 j + k,
Ostrovityanka [42]

Answer:

2x - y - 3z = 0

Step-by-step explanation:

Since the set

{i, j}  = {(1,0), (0,1)}

is a base in \mathbb{R}^2

and F is linear, then

<em>{F(1,0), F(0,1)}  </em>

would be a base of the plane generated by F.

F(1,0) = a+b = (2i-2j+k)+(i+2j+k) = 3i+2k

F(0,1) = a+c = (2i-2j+k)+(2i+j+2k) = 4i-j+3k

Now, we just have to find the equation of the plane that contains the vectors 3i+2k and 4i-j+3k

We need a normal vector which is the cross product of 3i+2k and 4i-j+3k

(3i+2k)X(4i-j+3k) = 2i-j-3k

The equation of the plane whose normal vector is 2i-j-3k and contains the point (3,0,2) (the end of the vector F(1,0)) is given by

2(x-3) -1(y-0) -3(z-2) = 0

or what is the same

2x - y - 3z = 0

3 0
4 years ago
How to find area of circle
Bad White [126]

Answer:

A=πr2

Step-by-step explanation:

area = pie * radius (to the power of 2)

pie = 3.14

radius = middle point till the line of the circle

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