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PolarNik [594]
2 years ago
14

I just need help, *uploaded again*

Mathematics
1 answer:
Svet_ta [14]2 years ago
7 0

Answer:

Your answer for the first one is B

Step-by-step explanation:

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Last year there were 205 ducks living on the pond. This year there are 20 % more ducks living on the pond. Is this a percent inc
Mkey [24]

Answer:

This is an increase.

Step-by-step explanation:

It says 20% *more* ducks which means the number is getting bigger.

4 0
3 years ago
Read 2 more answers
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
Find the volume and round to the nearest tenth as needed
erastovalidia [21]

Answer:

1053 m^3

Step-by-step explanation:

Pyramid top   1/3 * 9 * 9 * 12 = 324 m^3

Base  9 * 9 * 9  = 729 m^3

total  1053 m^3

6 0
1 year ago
In the diagram below, BD is parallel to XY. What is the value of x?
MAXImum [283]

If two lines are crossed by another line that is called the transversal, the corresponding angles those in matching corners. In this problem, we have two parallel lines:


\overleftrightarrow{XY} \\ \\ \overleftrightarrow{BD}


In this way, x° and 76° are corresponding, therefore:

(x)° = 76°

∴ x = 76

5 0
2 years ago
Read 2 more answers
I need an answer ASAP plzzzzzz
valkas [14]

Answer:

F to B Your welcome :)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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