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iVinArrow [24]
3 years ago
8

How do you know if two line segments are perpendicular

Mathematics
1 answer:
Marina86 [1]3 years ago
5 0

Answer: C. Their slopes are negative reciprocals

Step-by-step explanation:

The slopes of two perpendicular lines are negative reciprocals of each other.

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2^x+2=4. yall i got this problem and i dont rlly understand how to do it. Hope yall can help me:)))))))))))))))
Oksi-84 [34.3K]

Answer:

x=1

Step-by-step explanation:

Ok, so we start off with 2^x+2=4

Then, we subtract 2 from both sides so that becomes: 2^x+2-2=4-2

After that, we simplify to get: 2^x=2

Finally, the solution becomes: x=1

3 0
2 years ago
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Last one, Help with math please 18-20 on the pdf. I do not know how to post a picture I am so sorry.
tatuchka [14]
Question 18
The answer is 4 days. 
Because, 
Kevin =3×n
Anita =4+ (2×n)
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Question 19
When the solution is (4,1), it means the value of y=1 and x=4. 
The answer is;
y=x-3
y=-3x+13. Since when the values of x and y are substituted they satisfy the system. 

Question 20
The system has no solution.
This is because the line are parallel and they do not intersect to give a solution. 



8 0
3 years ago
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ian is trying to estimate the distance across the lake d. he knows the measures shown in the diagram. which estimate is closest
masya89 [10]

Answer:  The estimate is closest to the distance d is 4.2 miles


Step-by-step explanation:

In the given image, we can see that there is a right triangle, in which d is the side opposite to the right angle (largest angle in the triangle) which means its the longest side of the triangle.

[Since side opposite to the larger angle is larger]

Therefore, by Pythagoras Theorem we have

d^2=(3.6)^2+(2.2)^2\\\Rightarrow\ d^2=12.96+4.84\\\Rightarrow\ d^2=17.8\\\Rightarrow\ d=\sqrt{17.8}\\\Rightarrow\ d=4.2190\approx4.2

The estimate is closest to the distance d is 4.2 miles.

7 0
3 years ago
Identify the equation that means "eight more than x is fourteen."
natali 33 [55]
An equation that means 8 more than x is 14 would be x + 8 = 14. I hope this helps!
4 0
3 years ago
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Which statement best explains how Lizabeth develops the theme in "Marigolds" that beauty can be appreciated even in the worst ci
Anika [276]
That no matter what if you feel good about yourself you do better at what your doing. Hope I helped!
4 0
3 years ago
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