2 years ago

Triangle ABC is defined by the points A (8, -2),

Mathematics

1 answer:

s344n2d4d5 [400]2 years ago

6 0

Answer:

First let's work out the lengths of each side using the equation

(y2-y1)²+(x2-x1)² and then find the square root of your answer

We get BC as root of 26

AB as root of 113

AC as root of 85

To get the perimeter of the triangle add up the values

root of 85+root of 113+root of 26=24.95 (use the unit specified)

I know the answer is a bit rushed but if you do have any questions let me know

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write an equation of a line with the given slope and y-intercept. m = –2, b = 4 y = 4x – 2 y = –2x – 4 y = -1/2x 4 y = –2x 4

kirill [66]

Y = mx + b

m = -2, b = 4

<span>y = -2x + 4</span>

4 0

3 years ago

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What is the smaller x and what is the larger x?

kiruha [24]

both are 2

check

2²+3(2)-10=0

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3 years ago

Wegnerkolmp or someone who can explain maths please<br> I need a proper explanation

umka2103 [35]

Answer: 66 degrees

Explanation:

Check out the attached image below. Figure 1 is the original image without any additions or alterations. Then in figure 2, I extend segment BC to form a line going infinitely in both directions. This line crosses segment DE at point F as shown in the second figure.

Note how angles ABC and DFC are alternate interior angles. Because AB is parallel to DE (given by the arrow markers) this means angle DFC is also 24 degrees

Focus on triangle DFC. This is a right triangle. The 90 degree angle is at C.

So we know that the acute angles x and 24 are complementary. They add to 90. Solve for x

x+24 = 90

x+24-24 = 90-24

x = 66

That is why angle CDE is 66 degrees