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slavikrds [6]
3 years ago
11

What is the length of the altitude of the equilateral triangle below?

Mathematics
1 answer:
Mice21 [21]3 years ago
4 0
B. 3 √3

The shortcuts for a 30 60 90 triangle is that the:

Hypotenuse is 2 times the short leg

The long leg is √3 times the short leg.

Making it 3 √3

Another way is by the Pythagorean Theorem.

a^2+b^2=c^2

3^2+b^2=6^2

9+b^2=36

Subtract 9 from both sides

b^2=27

Square root both sides

b=5.2 or the √27

√27 can be simplified more

An equation that equals to 27 that has a perfect square is 9*3


√9* √3

The perfect square of 9 equals to 3

So 3 √3
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Is the relation in this set of points a function
natita [175]
It is not a function—an element from the domain is paired with more than one element from the range. Specifically, the input value of 4 corresponds to two output values: 5 and -4.

A function can only take on one output for each input. It only takes one input value to associate with more than one output value to be invalid as a function.

Please mark this answer as the Brainliest, if you find this helpful :)
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2 years ago
20 POINTS IF CORRECT CAN SOMEONE HELP ME
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Answer:

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4 0
3 years ago
Read 2 more answers
at noon joice drove to the lake at 30 mi. per hour, but she made a long walk back at 4 mi. per hour. how long did she walk ifshe
Kryger [21]
Distance = 30 mph * time
distance = 4 mph * time

distance = 30 mph * t
distance = 4 mph * (17-t)

Since distance is equal then
30 mph * t = 4 mph * (17-t)
 
30t = -4t + 68

34t = 68

t = 2 hours

We see the return trip time is (17 -t ) which is 15 hours.
The beginning trip time is 2 hours.

Double Check
Beginning trip = 30 miles * 2 = 60 miles
Return trip = 4 miles * 15 = 60 miles.


3 0
3 years ago
X 2 + 8x +12 identify the correct factor
PilotLPTM [1.2K]

Answer:

x+6 and x+2 are factors

Step-by-step explanation:

x²+8x+12

(x+6)(x+2)

So x+6 and x+2 are factors of x²+8x+12

5 0
3 years ago
Round 9991 to the nearest thousands
stiv31 [10]

Answer:

10,000

Step-by-step explanation:

In order to round numbers we look at the number to the right of whatever we are rounding to.  So in this case we are rounding to the nearest thousand so we look at the number to the right of the thousands which is the hundred in this case.  If that number is a 1-4 we round down and if that number is a 5-9 we round up.  In this case the number to the right is a 9 so we will round up.  The nearest thousand above 9991 is 10,000 so that is what we will round to

6 0
3 years ago
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