Hey there! :)
2x - 3y - z ; When x = -2, y = 3, & z = -2
Since we're given the values of x, y, & z, we can very simply plug everything in!
2(-2) - 3(3) - (-2)
Simplify.
(-4) + (-9) + 2
Get rid of parenthesis.
-4 - 9 + 2
Remember to do PEMDAS!
Parenthesis
Exponents
Multuply
Divide
Add
Subtract
So, since adding comes before subtracting, let's add! :)
-4 - 9 + 2
-4 - 7
Simplify.
-11
So, our answer is [A] : -11
~Hope I helped!~
We can write two division problems related the given equation as follows.
Division problem one :
Here 8 is in multiplication with -2 on the left side.
so when we bring this 8 on the right side, we will have to apply opposite operation of multiplication which is division.
so dividing (-16) by 8 on the right side, we have:
Division problem two :
Here -2 is in multiplication with 8 on the left side.
so when we bring this (-2) on the right side, we will have to apply opposite operation of multiplication which is division.
so dividing (-16) by (-2) on the right side, we have:
Answer:
Ok, we know that the width of the door is 4.20m.
Then, if the arc is at the top of the door, we will have that the diameter of that "half circle" will be equal to the width of the door.
Then the diameter of the arc is 4.20m
And the radius is defined as half of the diameter, so we have:
radius = 4.20m/2 = 2.10m
And we can write this in cm (because the probelm ask for it)
1m = 100cm
then 2.10m = 2.1*100cm = 210cm
Now, we know that the perimeter of a circle is:
P = 2*pi*r
where pi = 3.14
Then the perimeter (or arc) of half a circle will be half of that:
Arc = (2*pi*r)/2 = pi*r
and r = 210cm, pi = 3.14
Arc = 3.14*210cm = 659.4cm
Answer:
30 bags
Step-by-step explanation:
Take the number of apples and divide by the number of apples per bag
150/5
30
We need 30 bags
Answer: 4 tiles
Explanation: if the square has a width of one foot then the length is also one foot since all sides are equal. Therefore 4 squares can fit along a 4 foot wall
