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Komok [63]
3 years ago
12

I need a math problem for my 7th grade math teacher, can anybody help me please?

Mathematics
1 answer:
Lelu [443]3 years ago
4 0

Answer:

Whats the problem? and what class (algebra...)

Step-by-step explanation:

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Quadrilateral KLMN is a rectangle. The coordinates of L are L(1,-4) and the coordinates of M are M(3,-2) find the slopes of side
m_a_m_a [10]
We can start by finding the gradient of LM
m= \frac{ y_{2}- y_{1}  }{x_{2} - x_{1} }  = \frac{-2--4}{3-1} = \frac{2}{2}=1

Two perpendicular lines will meet the requirement m_{1}×m_{2}=-1
Two parallel lines have equal gradients

NM is perpendicular to LM, hence the gradient of NM is -1
KN is a line that is parallel to NM, hence the gradient is 1
KL is perpendicular to LM, hence the gradient of KL is -1

5 0
3 years ago
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An academic adviser wanted to investigate the amount of money spent by students on textbooks. She randomly sampled 25 students a
ladessa [460]

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8 0
3 years ago
150-5r>87.5 Il mark brainliest
Mashutka [201]

Answer:

r < 12.5

Step-by-step explanation:

Given

150 - 5r > 87.5 ( subtract 150 from both sides )

- 5r > - 62.5

Divide both sides by - 5, reversing the symbol as a result of dividing by a negative quantity.

r < 12.5

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3 years ago
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A toy factory sold 120,587 toys in 25 days. If each toy was sold for $58, about how much money did the factory earn in 25 days?
Rina8888 [55]
<h3>Answer: $7,018,000</h3>

This value is a little over 7 million dollars

======================================================

Explanation:

120,587 rounds to 121,000 when rounding to the nearest thousand.

The instructions don't mention rounding 58, so we'll leave it as that

Multiply the values to get

58*121,000 = 7,018,000

which is the estimate of how much money was earned.

-----------

The actual amount of money earned is

58*120,587 = 6,994,046

which isn't too far off of our estimate.

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Note: the value of 25 days is never used. You could have any other number of days you want, and the answer is still the same. This value is probably either filler or some kind of distraction.

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3 years ago
Solve please 4x^2+ 8xy - 60y^2
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4x^2+ 8xy - 60y^2 =48x^3y^3
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3 years ago
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