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igor_vitrenko [27]
3 years ago
5

Can someone help me find the answer?

Mathematics
2 answers:
raketka [301]3 years ago
8 0

Answer:

AC=9 cm

ABC is not a right angled triangle

Step-by-step explanation:

AB=8cm

BC=5cm

22=AB+BC+AC

AC=22-8-5

AC=9

since AC is the longest,

using Pythagoras theorem

AC^2=BC^2+AB^2

9^2=8^2+5^2

81=64+25

81=89

therefore, it is not a right angled triangle

Gnesinka [82]3 years ago
3 0

Answer:

No it is not a right triangle.

Step-by-step explanation:

Use the Pythagorean theorem to answer this question

1. find the missing side

8+5+x=22

13+x=22

x=9

2. Plug what you know into the Pythagorean theorem

a^2 +b^2=c^2

8^2+5^2=9^2

(if this  is true then it is a right angle)

64+25=81

89≠81

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Answer:

A

Step-by-step explanation:

HL, since they are right triangles and the hypotenuse are congruent as well as the leg they share.

4 0
2 years ago
What is the equation of a line that has a slope of -2/3 and passes through the point (-3, -1)?
valentinak56 [21]

Answer:

d d d d d d d d d d d d d d d  d d dd  d d d

Step-by-step explanation:

d d d d d d d d d d d d  d d d d d d d d d d  d d d d d d d d d d d d d d d d d  d d d d d  d d d d d d d d  d  d d d d d d d d  d d d d d

5 0
3 years ago
The cost of a car battery costs $35 wholesale for the automotive store to buy, but they need to markup the cost 40% for the reta
lara31 [8.8K]

Answer:

The markup amount is $14 and the retail price is $49.

Step-by-step explanation:

You can use the following formula to find the retail price with the information provided:

Retail price=Cost*(100%+markup %)

Cost=35

Markup %=  40%

Now, you can replace the values in the formula:

Retail price=35*(140%)

Retail price=49

Now, you can subtract the cost from the retail price to find the markup amount:

49-35=14

According to this, the answer is that the markup amount is $14 and the retail price is $49.

8 0
3 years ago
Bella is wrapping a cube-shaped gift box that measures 8.5 inches along each edge. How many square inches of wrapping paper is n
Ymorist [56]

Answer:

433.5 in²

Step-by-step explanation:

A cube has 6 sides

Area of 1 side = 8.5 x 8.5 = 72.25 in²

Area of 6 sides = 72.25 x 6 = 433.5 in²

5 0
3 years ago
Read 2 more answers
- (x + 2)2 + (y - 9)2 = 1
telo118 [61]

Answer:

x+y=-5.75

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, you would simply need to use the distributive property!

-(2)x-(2)2+(2)y-(2)9=1

-2x-4+2y-18=1

Then you need to add/subtract so the similar numbers are together.

-2x+2y-22=1

-2x+2y=23

x+2y=-11.5

x+y=-5.75

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

Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!

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3 years ago
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