All categories

3 years ago

If -4 * -4 = 16, but -4^2 = -16, how is that possible?

Mathematics

2 answers:

Morgarella [4.7K]3 years ago

7 0

Answer:

This is not possible

Step-by-step explanation:

The only way you get this is if you plug it into the calculator without placing parenthesis around -4

For example:

-4^2 = -16 while (-4)^2= 16

When doing math it is common knowledge that when two negative numbers are multiplied together the negative sign will cancel out and turn into a positive product.

----

Also -4*-4 is the same as -4^2 just written differently

Tcecarenko [31]3 years ago

6 0

Answer:

determine if true . and this is false

Step-by-step explanation:

You might be interested in

In a right triangle, if the length of the hypotenuse is 10 and the length of one of the other sides is 6, what is the length of

Andrew [12]

Answer:

Step-by-step explanation:

10^2=100 6^2=36 100-36=64 sqrt64=8

4 0

3 years ago

NEED HELP ASAP WILL GIVE BRAINLY IF CORRECT

Alenkinab [10]

Answer:

from top to bottom

the second one

the third one

and the sixth one

5 0

2 years ago

Give the y-intercept of the function f(x)=x^3 + 5x^2 - 3x+3

stepladder [879]

Answer:
Y-intercept (0,-20)

3 0

3 years ago

Read 2 more answers

6. Suppose that y varies inversely with x. Write an equation for the inverse variation,

Nostrana [21]

Answer:

If y varies inversely as x, then we write it as:

y = k/x

where k is some constant.

If we multiply both sides of this equation by x we get an equation for k:

k = x*y

We are given that y=4 when x=7, therefore:

k = 7*4 = 28

Put this back into our original equation to get:

y = 28/x

6 0

3 years ago

Solve. e^(4x) + 5e^(2x) - 24 = 0.

harina [27]

E^2x=yso e^(4x) + 5e^(2x) - 24 = 0=y^2+5y-24=(y+8)(y-3)y=3ln3=2xx=ln(3)/2=0.55

8 0

3 years ago