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dangina [55]
3 years ago
6

H e l ppppppppppp

Mathematics
2 answers:
son4ous [18]3 years ago
7 0

Answer:

a

Step-by-step explanation:

Vikentia [17]3 years ago
3 0

Answer:

(Please vote me Brainliest if this helped!)

Letter A

Step-by-step explanation:

Pythagorean Triples c^2=a^2+b^2

A) Not a Pythagorean Triple

40^2=12^2+35^2 : 1,600 ≠ 144 + 1,225

B) Pythagorean Triple

53^{2} = 28^{2} + 45^{2}  : 2,809 = 784 + 2,025

C) Pythagorean Triple

65^2= 33^2+56^2 : 4,225 = 1,089 + 3,136

D) Pythagorean Triple

85^{2} = 36^{2} + 77^{2} : 7,225 = 1,296 + 5,929

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Marysya12 [62]
2.8 multiplied by 2.8 to find the surface area of the base which is 7.84
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Plus them together 7.84 plus 30.8 which is 38.64
6 0
3 years ago
someone pls help!!! Complete the proofs using the most appropriate method. Some may require CPCTC. I will give brainly
Softa [21]

Answer:

#9

I can't write out the whole proof here.

it bisects, so we know BCA is congruent to DCA

abc being congruent to adc is given

AC = AC because it is a singular side

AAS

then the lines are congruent by CPCTC

3 0
3 years ago
HELPPPPPP i'm taking a test right now
dalvyx [7]

Answer:

AE

Step-by-step explanation:

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3 years ago
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DaniilM [7]

Answer:

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3 0
3 years ago
PLEASE HELP FAST! I'LL LIST U BRAINIEST IF U ANSWER RIGHT!
sattari [20]

Answer:

Part A) x = -3

Part B) x = 1, x = -7

Part C) x < -7

Part D) 2

Step-by-step explanation:

<h3>Part A)</h3>

2(x - 3) = 3x - 3

<em>open the parenthesis</em>

2 * x - 2 * 3 = 3x - 3

2x - 6 = 3x - 3

<em>subtract 2x from both sides</em>

2x - 2x - 6 = 3x - 2x - 3

-6 = x - 3

<em>add 3 to both sides</em>

-6 + 3 = x

-3 = x

<h3>Part B)</h3>

|2x + 6| = 8

<em>split this into two equations:</em>

<em>2x + 6 = 8</em>

<em>&</em>

<em>2x + 6 = -8</em>

2x + 6 = 8

2x = 8-6

2x = 2

x = 1

2x + 6 = -8

2x = -8 - 6

2x = -14

x = -7

<h3>Part C)</h3>

-5(x + 1) > 30

<em>open the parenthesis</em>

-5x - 5 > 30

<em>add 5 to both sides</em>

-5x > 35

<em>divide both sides by -5</em>

x > -7

<em>since you divided by a negative, flip the sign.</em>

x < -7

<h3>Part D)</h3>

f(x) = 4x - 3

<em>substitute x for 5</em>

5 = 4x - 3

5 + 3 = 4x

8 = 4x

2 = x

5 0
3 years ago
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