Answer:
f(x) = -8
Step-by-step explanation:
f(x) = x² + 2x – 8
f(x) = (-2)² + 2(-2) – 8
f(x) = (-2)² + 2(-2) – 8
f(x) = 4 + (-4) – 8
f(x) = 4 – 4 – 8
f(x) = 0 – 8
f(x) = -8
I hope this helps
A number is :
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Three quarters of it means :
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Decrease by 20 means :
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Equals to 82 means :
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What is that number ?
x asked so we must solve the above equation for x.
Let's do it....
Plus sides 20
Multiply sides by 4
Divided sides by 3
Simplify
So that number is 136 .
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And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
Answer:
The minimum packs of sausages that he needs is 1 and he needs 2 packs of rolls
Step-by-step explanation:
1 pack of sausages contains 5 sausages and 1 pack of rolls contains 4 rolls. Collin needs the same number of sausages and rolls. He needs 2 packs of bread rolls because 4 x 2 is 8 which means there is enough
hope this helps
Hi, these equations are pretty easy actually, first thing you should know when working with variables is that you always want to leave the variable alone, let's take the third excersise for example, 12x + 2 = 146. Here you just do the opposite on the other side of the equation depending if the number is positive or negative. Since x is being multiplied by 12 you first get rid of the 2, since its positive you subtract it to 146. Now the answer should be 12x = 144. Now since you're multiplying 12 to x you just divide 12 from 144, 144/12 = 12
x = 12
Circumference=diameter times pi
diameter=12
circumference=12 times pi
we use pi=3.14
circumfernce=12 times 3.14
circumference=37.68 ft
round to tenth
8 is greater than 5 so roundup
37.7ft
