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inna [77]
3 years ago
15

Need help with 1,4,7 please

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
3 0
I dont understand the question that you are asking
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A rectangular garden has length and width as given by the expressions below. Length: 4 - 7 (3x + 4y) Width: 3x(-2y) Write a simp
Nezavi [6.7K]

Answer:

⇒ 8 −  ⇒ 42x −  ⇒ 56y −  ⇒ 12xy

Step-by-step explanation:

Im smart

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2 years ago
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What is the solution to the system of equations? ⎧⎩⎨⎪⎪x+3y−z=24x+2y+5z=13x+z=12 (−4, 1, −3) (3, 0, 3) (5, −2, −3) (−1, 2, 3)
snow_tiger [21]
<h3>Answer:</h3>

(5, -2, -3)

<h3>Explanation:</h3>

We assume your equations are ...

  • x +3y -z = 2
  • 4x +2y +5z = 1
  • 3x +0y +z = 12

These have solution (x, y, z) = (5, -2, -3).

_____

<em>How we know</em>

Trying the choices in the last equation eliminates the first and last. Trying the second choice in the first equation eliminates it, leaving the 3rd choice as the answer you're looking for.

We also know because we can ask a graphing calculator to solve the matrix equation (or row-reduce the augmented matrix).

<em>Comment on this problem</em>

The hardest part of this problem is figuring your intent. The equations are not well-separated, so we have a hard time telling what is a constant and what is a coefficient. It took a couple of guesses to sort it out. A little editing before posting would be helpful.

8 0
3 years ago
Please help!!<br> im not sure how to find the answer
Sophie [7]

Answer:

93

Step-by-step explanation:

Add: 67+41+91+68=267

Subtract: 360-267=93

Hope this helps

3 0
3 years ago
80% of __ is 16 help
S_A_V [24]

Answer:

80% of 20 is 16.

Step-by-step explanation:

4 0
3 years ago
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There are seven members of a jazz club who are listed below. A concert director can choose some or all of them to be part of a l
balu736 [363]
The concert director can choose the new members by holding try outs to take the the possible candidate’s skills, performance and professionalism into consideration to be a part of the large show. Another way is by voting amongst other people in their school to see who the audience would be excited to see preforming in the show.
4 0
3 years ago
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