Answer: x=5
Please, see the attached file.
Thanks.
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Equation
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y = -3x - 9
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Option 1
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If I substitute x = -9, I should get y = 0
When x = -9
y = -3 (-9) - 9
= 18 (I did not get 0, wrong)
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Option 2
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If I substitute x = -3, I should get y = 0
y = -3(-3) - 9
y = 9 - 9
y = 0 (Yes, I got 0, correct)
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Option 3
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If I substitute x = 0, I should get y = -3
y = -3 (0) - 9
y = 0 - 9
y = -9 (I did not get -3, wrong)
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Option 4
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If I substitute x = 0, I should get y = -9
y = -3 (0) - 9
y = 0 - 9
y = -9 (Yes, I got -9, correct)
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Answer: (-3, 0) and (0, 9) are ordered pairs of the equation (Answer B, D)
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Please mark brainliest
Answer is
Exact Form: 2√10
Decimal Form: 6.32455532
Explanation:
See the image fir details steps
…
Answer:
The height of wall where 30-foot ladder reaches is 29.39 foot.
Step-by-step explanation:
Consider a triangle ABC showing AC be the 30 foot ladder that is resting on a wall AB and foot of ladder is 6 foot from the wall that is BC = 6
We have to find the height of wall where ladder is reaching.
Since building and foot of ladder makes a right angle at B.
Let AB be x foot.
PYTHAGORAS THEOREM STATES THAT THE SUM OF SQUARE OF BASE AND PERPENDICULAR IS EQUAL TO THE THE SQUARE OF HYPOTENUSE.
Applying Pythagoras theorem,
Thus, the height of wall where 30-foot ladder reaches is 29.39 foot.
