(-12)^9 is a negative because a negative times a positive is negative. The answer to (-12)^9 is -5159780352.
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Both <em>Px</em> + <em>Qy</em> = <em>R</em> and <em>Tx</em> + <em>Uy</em> = <em>V</em> have the same solution (2, 9), meaning the point (2, 9) lies on both lines such that <em>x</em> = 2 and <em>y</em> = 9 makes both equations true.
When you add these equations together, you get
(<em>Px</em> + <em>Qy</em>) + (<em>Tx</em> + <em>Uy</em>) = <em>R</em> + <em>V</em>
→ (<em>P</em> + <em>T</em> ) <em>x</em> + (<em>Q</em> + <em>U</em> ) <em>y</em> = <em>R</em> + <em>V</em>
so the first option is equivalent.
When you subtract the first equation from the second, you get
(<em>Tx</em> + <em>Uy</em>) - (<em>Px</em> + <em>Qy</em>) = <em>V</em> - <em>R</em>
→ (<em>T</em> - <em>P</em>) <em>x</em> + (<em>U</em> - <em>Q</em>) <em>y</em> = <em>V</em> - <em>R</em>
so the third option is also equivalent.
Answer:
D
Step-by-step explanation:
Given 2 similar figures with sides in the ratio a : b, then
ratio of areas = : a² : b²
Given that the ratio of the edges of the 2 similar prisms is
7 : 3, then
ratio of surface areas = 7² : 3² = 49 : 9 → D
38, 5-1 over 4 is 4.75 “pounds” that’s $8 per pound sooo 8x4.75
Answer:
7/18
Step-by-step explanation:
Total Number of Boys in both grades:
4+3=7
Total Number of Students:
8+10=18
Number of boys/ number of students:
7/18