1 line of symmetry..... your welcome
Answer:
136
Step-by-step explanation:
A = (b1 + b2)h/2
A = (22 cm + 12 cm)(8 cm)/2
A = 136 cm^2
x - y = 16
x^2 + x^2 = 130
----------------
x^2 - y^2 = 256
+(x^2 + y^2 = 130)
2x^2 = 386
x^2 = 193
x = <span>13.892 (3DP)
----
</span>x - y = 16
13.892 - y = 16
-y = 2.108
y = -2.108
The numbers are: 13.892 and -2.108
All you need to do here is multiply the outside number by both 7x and -3.
When done correctly it should look like this:
-14x+6
Thats the answer.
7 times 2 gives you 14 but when multiplying mixed signs it turns negative so it would be -14.
negative 3 times negative 2 gives you 6. Both signs are negative, and you would suppose it would turn into a negative but thats only true when both signs are mixed. Both the 3 and the 2 are negative, making the signs the samez giving you positive
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