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dmitriy555 [2]
3 years ago
15

What type of triangle is formed by joining the points D(7, 3), E(8, 1), and F(4, -1)? equilateral triangle

Mathematics
2 answers:
Mrrafil [7]3 years ago
5 0
An acute scalene triangle is formed
Semenov [28]3 years ago
3 0

Answer:

The answer is right triangle. 100% on Plato

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Help help help please really need help
Galina-37 [17]

Problem 1

<h3>Answer:  B. M<3 would need to double.</h3>

Explanation: This is because angles 3 and 6 are congruent corresponding angles. Corresponding angles are congruent whenever we have parallel lines like this. If they weren't congruent, then the lines wouldn't be parallel. We would need to double angle 3 to keep up with angle 6.

=====================================================

Problem 2

<h3>Answer: D. none of these sides are parallel</h3>

Explanation: We have angles A and C that are same side interior angles, but they add to A+C = 72+72 = 144, which is not 180. The same side interior angles must add to 180 degrees for parallel lines to form. This shows AB is not parallel to CD.

A similar situation happens with angles B and D, since B+D = 108+108 = 216. This also shows AB is not parallel to CD. We can rule out choices A and C.

Choice B is false because AD is a diagonal along with BC. The diagonals of any quadrilateral are never parallel as they intersect inside the quadrilateral. Parallel lines never intersect.

The only thing left is choice D. We would say that AC || BD, since A+B = 72+108 = 180 and C+D = 72+108 = 180, but this isn't listed as an answer choice.

5 0
2 years ago
Find the slope of the line through each pair of points (0,1) and (3,0)
Brut [27]

\bf (\stackrel{x_1}{0}~,~\stackrel{y_1}{1})\qquad&#10;(\stackrel{x_2}{3}~,~\stackrel{y_2}{0})&#10;\\\\\\&#10;slope = m\implies&#10;\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{0-1}{3-0}\implies \cfrac{-1}{3}

6 0
2 years ago
Read 2 more answers
6. Let f(x)=x-2 and g(x) = x^2. Find the value of (fog)(-1).<br> A. -1<br> B.9<br> C.3<br> D.-3
inna [77]

Answer:

<h2>The answer is option A</h2>

Step-by-step explanation:

f(x) = x - 2

g(x) = x²

In order to find (fog)(-1) we must first find (fog)(x)

To find (fog)(x) substitute the g(x) into f(x) that's for every x in f (x) replace it with

g (x).

That's

(fog)(x) = x² - 2

To find (fog)(-1) substitute the value of x that's - 1 into (fog)(x)

We have

(fog)(-1) = (-1)² - 2 = 1 - 2 = - 1

Hope this helps you

8 0
2 years ago
In letters (b) leave your answer in terms of the constants a, b, c and d
Ivan
I think you mean to find b in terms of the constants a, c and d.

(x + a ) / b - c = d

(x + a) / b  = c + d

Cross multily:-

x + a = b(c + d)

b =   (x + a) / (c + d)
8 0
3 years ago
If 5 + 6i is a root of the polynomial function f(x), which of the following must also be a root of f(x)?​
kolezko [41]

Answer:

5-6i

Step-by-step explanation:

The complex conjugate root theorem states that if (a+bi) is a root, then (a-bi) must also be a root and vice versa.

We know that (5+6i) is a root.

Then by the above theorem, (5-6i) must also be a root.

Hence, our solution is (5-6i).

6 0
3 years ago
Read 2 more answers
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