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Natasha_Volkova [10]
3 years ago
14

7-15 please!!! I would really appreciate it!!!

Mathematics
1 answer:
vichka [17]3 years ago
7 0
7. x=45 The angle is a right angle, which is 90 degrees. 45+45=90
8. x=45 3x+x=180>>  3(45)+45=180>> 135+45=180
9. x=30 2x+x=90>> 2(30)+30=90>> 60+30=90
10. x=50 2x+(x+30)=180>> 2(50)+(50+80)=180>> 100+(80)=180
11. x=30 (x+20)+(x+10)=90>> (30+20)+(30+10)=90>> 50+40=90
12. x=25 (x+20)+(5x+10)=180>> (25+20)+(5(25)+10)=180>> 45+(125+10)=180>> 45+135=180
13. x=9 6x+4x=90>> 6(9)+4(9)=90>> 54+36=90
14. x=34 (2x-10)+(3x+20)=180>> (2(34)-10)+(3(34)+20)=180>> (68-10)+(102+20)=180>> 58+122+180
15. x=18 (2x+15)+(3x-15)=90>> (2(18)+15)+(3(18)-15)=90>> (36+15)+(54-15)=90>> 51+39=90
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PLEASE HELP I CANT SOLVE THIS
vladimir2022 [97]
Formula for volume = length × width × height

21 * 7 = 147

9 1/3 = 28/3

147 * 28 /3 = 4116/3

Simplify :

4116/3 = 1372

Volume = 1372 cm³.

Hope this helped☺☺
8 0
3 years ago
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3 years ago
What is the factored form of the expression over the complex<br> numbers?<br> 16x2 + 9y2
Hunter-Best [27]

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(4x -3yi) (4x+3yi)

Step-by-step explanation:

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Over  the complex number, this is equal to

(a-bi) (a+bi)

(4x -3yi) (4x+3yi)

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How many batches if each person gets a 1/2 cup for 240 people?
nirvana33 [79]

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8 0
3 years ago
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How do I do this problem??
KiRa [710]
First find the difference of the numerator. to do this multiply 1/x by 2 and 1/2 by x. you should get (2-x)/2x. now moving on to the whole fraction. then multiply the (2-x)/2x by 2x and the (x-2) by 2x. you should get (2-x)/(2x)(x-2). now factor out a negative from the (x-2) at the denominator to get -(2-x). so now you can cancel the (2-x) from the numerator and denominator! the answer will be 1/-2x! :)
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