Answer:
Solution set: (3, 4) and (4, 3)
Step-by-step explanation:
Please, to indicate exponentiation, use " ^ ": a^2 and b^2
Then you have:
a + b = 7 and a^2 + b^2 = 25.
Let's eliminate b: Solve a + b = 7 for b, obtaining b = 7 - a.
Then we have:
a^2 + (7 - a)^2 = 25, or
a^2 + 49 - 14a + a^2 - 25 = 0, or
2a^2 - 14a + 24 = 0, or
a^2 - 7a + 12 = 0, which factors as follows:
(a - 3)(a - 4) = 0
This results in a = 3 and a = 4, in which case the equation a + b = 7 tells us that the b values are 4 and 3 respectively.
Solution set: (3, 4) and (4, 3)
Let the smallest no. be x.
x+x+1+x+2=180
3x+3=180
x=59
so the smallest no. is 59
Answer:
<BOC = 100*
Step-by-step explanation:
Answer:
19.1sq cm
Step-by-step explanation:
10+9=19 so after that, you have to add the decimals, .4+.6=.10. then to make it easier you can take off the zero on the end so it reads as 19.1 .
Hope this helps!☺
Answer:
y= 2x-4
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Step-by-step explanation:
Slope-intercept form: y= mx+b
-2x+y= -4
+2x +2x
y= 2x-4