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liberstina [14]
3 years ago
12

Use an equation to solve. What would it be ABCD? And the sum?

Mathematics
1 answer:
Zepler [3.9K]3 years ago
6 0

Answer:

D. 35 + 145 = x

The sum of the angles = 180 degree

Step-by-step explanation:

35\degree + 145\degree = x\\x=180\degree

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Can someone pls pls help me?
vesna_86 [32]

Answer:

Hello! answer: 9

Step-by-step explanation:

Formula for triangle area: base × height ÷ 2 or base × height × 1/2

6 × 3 = 18 18 ÷ 2 = 9 therefore 9 is the area!

8 0
3 years ago
In centimeters, what is the unknown length in this right triangle
Ilya [14]

Answer:

11

Explanation:

(next time, it would be helpful to include a picture)

If you were on the same test as I was, than that means that the triangle you're looking for is the one below.

Using the Pythagorean Theorem,

a² + b² = c² is the same as c² - b² = a²

c = 61

61^2 =  61 X 61 = 3,721  

b = 60

60^2 = 60 X 60 =  3,600  

Next, we subtract:

3,721 - 3,600 = 121  

√121 = 11

(x = 11 cm)

so 11 is your answer

3 0
3 years ago
Read 2 more answers
Please complete z2+9z-90=(z-6)(z+?) ...?
notka56 [123]
The answer is:  (z - 6)(z + 15)

z² + 9z - 90 = z*z + 15z - 6z - 6*15 =
                    = (z*z + 15z) - (6z + 6*15) = 
                    = z(z + 15) - 6(z + 15) =
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4 0
3 years ago
Read 2 more answers
PLS HELP WILL MARK AS BRAINLIST
kykrilka [37]

Answer:

Step-by-step explanation:

x = -6 ± 3√2

x = -6 + 3√2

x = -6 - 3√2

5 0
2 years ago
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anygoal [31]
Pic 1 is correct
Pic 2 is correct
Pic 3 is correct
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3 years ago
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