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xenn [34]
3 years ago
9

Lesha wants to prove that the measures of the 3 angles in a triangle always have a sum of 180°. She decided to prove

Mathematics
1 answer:
levacccp [35]3 years ago
5 0

Answer:

A

Step-by-step explanation:

Reflecting it across the lines will bring the triangle on to the other triangles. This will show that when the triangle goes under a transformation such as reflection, the angles will stay the same.

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What is the discriminant of 32x-4= 4x^2 + 60
hodyreva [135]

Step One

Begin by getting one side of the question equal to zero.

32x -4 = 4x^2 + 60 Add - 32x + 4 from both sides.

0 = 4x^2 + 60 - 32x + 4 Collect like terms.

0 = 4x^2 - 32x + 64

Step Two

For this question, you could divide both sides by 4. It just makes the steps later on easier.

0 = x^2 - 8x + 16

Step Three

Calculate the discriminate.

The discriminate is b^2 - 4*a*c

a = 1; b = -8; c = 16

b^2 - 4*a*c = (-8)^2 - 4*(1)(16) = 64 - 64 = 0

There is only 1 root. It is real and it is rational.

A <<<<< Answer



4 0
3 years ago
Sound travels through sea water at a speed of about 1500 meters per second. At this rate, how far will sound travel in 2 minutes
Mariulka [41]

Answer:

180,000 m

Step-by-step explanation:

There are 60 seconds in a minute, so:

2 min × 60 s/min = 120 s

Distance = rate × time

d = 1500 m/s × 120 s

d = 180,000 m

8 0
3 years ago
What the same as 1.4
liubo4ka [24]

Answer:

\frac{7}{5}

Step-by-step explanation:

You can make 1.4 as a fraction, and it will be the same but in a different form.

So, to make a decimal by a fraction, you make 1.4 into a whole number. 1.4 will be 14.

Now, the denominator will be 10.

So, when you simplify \frac{14}{10}, which is \frac{7}{5}

3 0
3 years ago
Question 2 options:<br><br> A. y=5x+5<br> B. y=15x+5<br> D. Y=1/5x+5<br> C. Y=10x+5
expeople1 [14]

Answer:

A)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
In the diagram, think of each segment in the figure as part of a line.
Otrada [13]

Answer:

m and k

Step-by-step explanation:

4 0
3 years ago
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