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77julia77 [94]
3 years ago
7

19 points please explain thanks

Mathematics
2 answers:
miss Akunina [59]3 years ago
5 0

Answer:

EFK and IKH  are vertical angles

Step-by-step explanation:

Vertical angles touch at a point and have the same lines, just extended

EFK and IKH  are vertical angles

FKG and IKJ  are vertical angles

GKH and EKJ are vertical angles

satela [25.4K]3 years ago
5 0
The third option. hope this helps
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A trapezoid was broken into a triangle and rectangle.
zloy xaker [14]

Answer:

the area cm2

Step-by-step explanation:

6 0
3 years ago
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$2900 at 13% for 30 years. i need simple interest and compounding interest
jekas [21]

Answer:

Step-by-step explanation:

simple:

2900(1+.13*30)=14210

Compounding

2900(1+.13)^{30}=113436.1041

8 0
3 years ago
Read 2 more answers
How do I solve for x
Alchen [17]
Greetings!

To find the length of any side of a right triangle, you can use the Pythagorean Thereom. It states that the squares of two sides are equal to the square of the hypotenuse:
a^2+b^2=c^2

Input the information from the diagram into the formula: 
(x)^2+(x+7)^2=(13)^2

Expand each term:
(x)^2+(x+7)^2=(13)^2

x^2+((x+7)(x+7))=169

x^2+(x(x+7)+7(x+7))=169

x^2+x^2+7x+7x+49=169

Combine like terms:
2x^2+14x+49=169

Add -169 to both sides:
(2x^2+14x+49)+(-169)=(169)+(-169)

2x^2+14x-120=0

Factor out the Common Term (2):
2(x^2+7x-60)=0

Factor the Complex Trinomial:
2(x^2-5x+12x-60)=0

2(x(x-5)+12(x-5))=0

2(x-5)(x+12)=0

Set Factors to equal 0:
x-5=0

x=5

or

x+12=0

x=-12

However, since we are solving for the side length, the only possible answer is 5 (a shape can't have a side with a negative length.)

The Solution Is: 
\boxed{x=5}

I hope this helped!
-Benjamin

6 0
2 years ago
The price of a certain painting increased by 20% during the first year and decreased by 15% during the second year. The price of
Rina8888 [55]

Answer:

A.102%

Step-by-step explanation:

Let cost price of painting=$100

In first year price increased 20%

Then , the price=100+100(0.20)=$120

In second year

Price decreased 15%

Then , the price of painting=120-120(0.15)

The price of painting=$102

Percent =\frac{final\;price}{Initial\;price}\times 100

By using this formula

Then, we get

Percent of the original price=\frac{102}{100}\times 100

Percent of the original price=102%

Option A is true.

8 0
3 years ago
The volume of this rectangular solid WITHOUT a top is
nika2105 [10]

Answer:

240 cubic inches

Step-by-step explanation:

The volume of a rectangular solid is given by LxBxH.

This question has a L=10, B= 6 and H=4 .

So the volume of a rectangular solid is L\times B \times H =10\times 6 \times 4

Volume = 240 cubic inches

7 0
3 years ago
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