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grandymaker [24]
3 years ago
5

Please answer this!!

Mathematics
1 answer:
Solnce55 [7]3 years ago
8 0

Answer:

Correct me if I'm wrong but 71.5 for X and Y

Step-by-step explanation:

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Y=5x+2 <br> 4x-y=0<br> is (2,12) a solution of the system?
quester [9]

Answer:

No

Step-by-step explanation:

For a point to be a solution of a system of equations, it has to work for both equations in said system. For this particular point, it doesn't fit into both.

12=5(2)+2

12=10+2

12=12

4(2)-12=0

8-12=0

-4=0

The second equation doesn't work out.

5 0
4 years ago
Can someone help me plzzz
ddd [48]
The first mechanic would get $75 per hour and <span>the second mechanic would get $55 per hour</span>
4 0
3 years ago
Read 2 more answers
Which expression is equivalent to 3(5 + 4)? (1 point)
kondaur [170]

Answer:

27

Step-by-step explanation:

do 3 time 5 and you get 15 and then you do 3 times 4 and you get 12 and then you add 15 and 12 and you get 27.

7 0
4 years ago
Read 2 more answers
(look at image) can i get help with this?
navik [9.2K]

Answer:

m∡A = 14

m∡B = 76

Step-by-step explanation:

Two Angles are Complementary when they add up to 90 degrees.

So 3x -7 + 11x - 1 = 90, which we can solve.

14x - 8 = 90

14x = 98

x = 98/14 = 7

with the knowledge of x=7, we can find the angles:

m∡A = 3·7 - 7 = 14

m∡B = 11·7 - 1 = 76

Supplementary angles are angles that add up to 180 degrees, so the next assignment is very comparable, try it!

4 0
3 years ago
Find the dimension of the subspace spanned by the given vectors. [Start 3 By 1 Matrix 1st Row 1st Column 1 2nd Row 1st Column ne
vladimir1956 [14]

Answer:

4

Step-by-step explanation:

Given the following column vectors

(1, -2, 0), (-1, 3, 1), (2, 1, 5) and (-1, 1, 1)

Before we can get the dimension of the vector, the following steps must be followed;

Step 1:

We need to transform the vectors given into a matrix form and then reduce the resulting matrix.

Step 2:

Then we generated the basis of the matrix (new set of column vectors from the reduced matrix).

Step3:

The total number of column vectors generated will be equivalent to the dimension of the vectors.

The dimension spanned by the set of vectors is 4

Check the attachment for calculation

4 0
3 years ago
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