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2 years ago

Find the area of this composite figure use 3.14 for pi

Mathematics

1 answer:

german2 years ago

3 0

Answer:

3.14×4÷5

Step-by-step explanation:

multiply 3.14 by 4 then divide that answer by 5

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If the perpendicular bisector of one side of a triangle goes through the opposite vertex, then is the triangle isosceles?

Ne4ueva [31]

Answer:

True

Step-by-step explanation:

The perpendicular bisector of the opposite side to the vertex bisects the angle at the vertex into two equal parts and also bisects the triangle into two equal parts.

Let A be the angle at the vertex, then assume that the angle is an isosceles triangle with base angles B.

We need to show that A = 180 - 2B for an isoceles triangle

The perpendicular bisector bisects A into two so the new angle in the vertex one half of the bisected triangle is A/2.

Since this half triangle is a right-angled triangle, the third angle in it is 90.

So, A/2 + B + 90 = 180 (Sum of angles in a triangle)

subtracting 90 from both sides, we have

A/2 + B + 90 - 90 = 180 - 90

A/2 + B = 90

subtracting B from both sides, we have

A/2 + B = 90

A/2 = 90 - B

multiplying through by 2, we have

A = 2(90 - B)

A = 180 - 2B

Since A = 180 - 2B, then our triangle is an isosceles triangle.

7 0

3 years ago

Solve the problem give the equation using x as the variable and give the answer. If 1 is subtracted from a number and this diffe

V125BC [204]

Answer:

x=6

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

3(x-1)=15+x

3x-3=15+x

2x-3=15

2x=12

x=6

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

6 0

2 years ago

YOOOOOOO HELLLPPPPPP PT.2 HERE 100 PLUS BRAINLIST

pshichka [43]

I believe it is the second one hope that helped

4 0

1 year ago

Read 2 more answers

Use this graph of velocity vs. time for two objects to answer the question.

Lynna [10]

Using derivatives, it is found that the correct option is:

A. Object C has an acceleration that is greater than the acceleration for D.

The acceleration is the derivative of the velocity, given by change in velocity divided by change in time, that is:

$a = \frac{\Delta_v}{\Delta_t}$

In this problem:

The change in time for objects C and T is the same.
The change in velocity for object C is greater, thus, it has a greater acceleration, and the correct option is:

A. Object C has an acceleration that is greater than the acceleration for D.

A similar problem is given at brainly.com/question/14516604

6 0

2 years ago

Read 2 more answers

|2+3(-4)|

puteri [66]

Answer:

Step-by-step explanation:

So we have the expression:

$|2+3(-4)|$