(-2x^2)^3*3x is -24x^7
exponents first
(-2x^2)^3
(-2)^3 x^(2)^3 (when raised to a power multiply the powers on the exponent)
(-2) *(-2) *(-2)*x^(2*3)
-8 x^6
-8 x^6 * 3x
-8*3 * x^6 *x (when multiplying add the exponents)
-24 x^(6+1)
-24 x^7
Answer:
-4 yards
Step-by-step explanation:
3X6=18
2x11=22
18-22=-4
You do know that there is no 11 yard penalty, right?
Let x be the number of new laptops and y be the number of tablets that the company should buy. The equations that best show the given conditions are as follows,
x + y = 30
515x + 285y = 11080
Solving simultaneously for the values of x and y gives an answer of x = 11 and y = 19.
Thus, the business should buy 11 laptops and 19 tablets.
In order to find which one is or isn't, you need to solve for the value of 'x'.
2x + 15 = 35
2x = 20
x = 10
Substitute x =10, into equation. If each side are not the same (i.e. 0=2), then that's the equation that is not equivalent,
Answer is B
Double check this. Chur! :)
Hope this makes sense.
Answer:
6,750,000 cm³ = 6.75 m³
Step-by-step explanation:
a scale version means that the ratio of every dimension of scale vs. real object is 1/50.
volume is created by multiplying 3 dimensions.
so, going from scaling to real the volume has to be multiplied by 50×50×50 = 50³ = 125000
so, as for the scale model we needed 54 cm³, for the full size object we need 54×125000 = 6,750,000 cm³ of metal.
or to bring it to m³ (1m³ = 100×100×100 cm = 1000000 cm³)
that would be 6.75 m³ of metal.