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2 years ago

Instructions: Use the image and your knowledge of the isosceles triangle to find the value of 2.

Mathematics

2 answers:

alex41 [277]2 years ago

8 0

Answer:

Step-by-step explanation:

In isosceles triangle, the base angles (the angles opposite to equal sides) are equal.

∠A = ∠B = 72

72+ 72 + x = 180 {Angle sum property of triangle}

144 + x = 180

x = 180 - 144

x = 36°

xz_007 [3.2K]2 years ago

6 0

Answer:

x = 36˚

Step-by-step explanation:

The 2 base angles in an isosceles triangle are equal
Angles in a triangle sum to 180˚
$x+72+72=180$
$x+144=180$
$x=180-144=36$

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Let L be the line parametrized by x = 2 + 2t, y = 3t, z = −1 − t. (a) Find a linear equation for the plane that is perpendicular

Elden [556K]

Answer:

Step-by-step explanation:

Given that L is a line parametrized by

$x = 2 + 2t, y = 3t, z = −1 − t$

The plane perpendicular to the line will have normal as this line and hence direction ratios of normal would be coefficient of t in x,y,z

i.e. (2,3,-1)

So equation of the plane would be of the form

$2x+3y-z =K$

Use the fact that the plane passes through (2,0,-1) and hence this point will satisfy this equation.

$2(2)+3(0)-(-1) =K\\K =5$

So equation is

$2x+3y-z =5$

b) Substitute general point of L in the plane to find the intersecting point

$2(2+2t)+3t-(-1-t) =5\\4+8t+1=5\\8t=0\\t=0\\(x,y,z) = (2,0,-1)$

i.e. same point given.

3 0

3 years ago

Plz help me with this Plzzzz!!!!

MrRissso [65]

In pretty sure it’s D , making each side equal to 6

4 0

3 years ago

Read 2 more answers

WILL GIVE BRAINLIEST!!

dexar [7]

Peter reflecting trapezoid ABCD across the y-axis would not change the degree measurement of angle A

The degree measurement of angle A is 115 degrees

<h3>How to determine the degree measurement of angle A?</h3>

From the question, we have:

A = 115 degrees

B = 65 degrees

The transformation is a reflection across the y-axis

Reflection is a rigid transformation; and it does not change the angle measure or side lengths.

After the transformation; we have:

A = 115 degrees

B = 65 degrees

Hence, the degree measurement of angle A is 115 degrees

Read more about transformation at:

brainly.com/question/4289712

8 0

2 years ago

A triangle has a perimeter of 31. The longest side is equal to 12. The difference of the other two is 3. What is length of the s

xenn [34]

Answer:

Step-by-step explanation:

The perimeter is the sum of the 3 sides of the triangle.

let the other 2 sides be x and x - 3 , then

12 + x + x - 3 = 31

2x + 9 = 31 ( subtract 9 from both sides )

2x = 22 ( divide both sides by 2 )

x = 11 and x - 3 = 11 - 3 = 8

The 3 sides are 12, 11, 8

with shortest side 8

3 0

2 years ago

What transformation is described by the

spayn [35]

Answer:

Step-by-step explanation:

Any alteration to the x value means that the function will move right. There are no exceptions to this that I can think of.

8 0

3 years ago