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makkiz [27]
2 years ago
13

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 <br> 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 <u>derivative of the velocity</u>, 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 <u>change in velocity for object C is greater</u>, 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:

10

Step-by-step explanation:

So we have the expression:

|2+3(-4)|

First, evaluate within the absolute value bars. 3 times -4 is -12. Thus:

=|2-12|

Now, subtract:

=|-10|

The absolute value of -10 is positive 10. So:

=10

And we're done!

3 0
3 years ago
Read 2 more answers
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