All categories

3 years ago

How do you know if -4^2 is -16 or 16?

Mathematics

1 answer:

alex41 [277]3 years ago

4 0

$\text{Hey there!}$

$\bf{-4^2=-4\times-4=16}\\\bf{You\ factor\ out\ the\ exponent\ by\ multiplying.\ Like\ how\ I\ did.}\\\\\\\\\boxed{\boxed{\text{Answer: 16}}}\checkmark$

$\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{LoveYourselfFirst:)}$

You might be interested in

Can Someone Please Help Me ?

adelina 88 [10]

$\frac{8}{3}$

This is because when the fraction is simplified, <em>a </em>in both the numerator and denominator is 8 and 3 respectively. Therefore, we can take 8/3 from the whole fraction to get the value of a.

:)

7 0

3 years ago

Square root of 15 please help me

VashaNatasha [74]

Answer:

Decimal Form Answer for your Square root of 15

3.87298334

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Please help will give brainliest

Ronch [10]

Answer:

A+B=180°(linear pair)

a+ 52°=180°

a=180°-52°

a=128° is your answer

6 0

3 years ago

Tom throws a ball into the air. The ball travels on a parabolic path represented by the equation , where represents the height o

tigry1 [53]

Answer:

2.5 second

Step-by-step explanation:

The equation is missing in the question.

The equation is, $h=-8t^2+40t$ , where 'h' is the height and 't' is time measured in second.

Now we know to reach its maximum height, h in t seconds, the derivative of h with respect to time t is given by :

$\frac{dh}{dt} =0$

Now the differentiating the equation with respect to time t, we get

$\frac{dh}{dt}=\frac{d}{dt}(-8t^2+40t)$

$\frac{dh}{dt}=-16t+40$

For maximum height, $\frac{dh}{dt} =0$

So, $-16t+40=0$

$\Rightarrow 16t=40$

$\Rightarrow t=\frac{40}{16}$

$\Rightarrrow t = 2.5$

Therefore, the ball takes 2.5 seconds time to reach the maximum height.

7 0

3 years ago

The number of calories K is needed each day by a moderately active women who weight w pounds, is h inches tall, and is a year ol

drek231 [11]

K = 917 + 6(w + h - a)
k = 1925
w = 119
a = 25

1925 = 917 + 6(119 + h - 25) =
1925 = 917 + 6(h + 94)
1925 = 917 + 6h + 564
1925 = 1481 + 6h
1925 - 1481 = 6h
444 = 6h
444/6 = h
74 = h........she is 74 inches tall

4 0

3 years ago