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ira [324]
3 years ago
9

I really need help!!!!​

Mathematics
2 answers:
yKpoI14uk [10]3 years ago
6 0

Answer: 1,440 deg

Step-by-step explanation: The interior angle = 180–36 = 144 deg. The sum of the interior angles = 144*10 = 1,440 deg.

Hope This helps :)

Viktor [21]3 years ago
3 0

Answer:

1440

Step-by-step explanation:

using the formula (n-2)

8×180=1440

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Can u pls help me with this question
Anastasy [175]

Answer:

D

Step-by-step explanation:

$65-$39=$26 increase

$26/$39=.6667 or 66.67%

3 0
3 years ago
Use properties to evaluate (-25) HIS O A. – 15 5 O B. 5 C. - OC. 15 O D. 1​
Arisa [49]

Answer:

-15/4

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Please Help Me !!!!!!
son4ous [18]
1.\\(4x^2+15x-3)-(-3x^2+5)\\=4x^2+15x-3+3x^2-5\\=7x^2+15x-8\leftarrow A.


2.\\-3f^2+4f-3+8f^2+7f+1\\=5f^2+11f-2\leftarrow C.


3.\\(2x^2+6x+1)+(-7x^2+2x-3)\\=2x^2+6x+1-7x^2+2x-3\\=-5x^2+8x-2\leftarrow B.


4.\\4x^2+3x-3\\\{4;\ 3;-3\}


5.\\6x^4+3x^3-2x^2+15x-14\\\{6;\ 3;-2;\ 15;-14\}\to5\leftarrow A.


6.\\-7x-5x^2+5\\\{-7\}\leftarrow D.


7.\\(2.5\cdot10^4)(4\cdot10^3)=2.5\cdot4\cdot10^{4+3}=10\cdot10^7\\=10^{1+7}=10^8=1\cdot10^8\leftarrow C.


8.\\2^2\cdot2^8=2^{2+8}=2^{10}\leftarrow B.
3 0
3 years ago
Read 2 more answers
Need rn! worth 14 ~ 謝謝
Serjik [45]

First is 14.4

Second I’m not sure

4 0
3 years ago
Linda scored 35, 47, and 42 points on three tests. How many points should she get on the fourth test to get an average score of
Taya2010 [7]
(35+47+42+x)/4 = 50
(35+47+42+x)=4*50
124 +x  = 200
x=200 - 124
x= 76

Answer B. 76 points.
6 0
4 years ago
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