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Alexus [3.1K]
3 years ago
9

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:)}

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Estimate each number to the nearest hundreds and find the sum. <br> 76549+5876
kherson [118]

Answer:

82,400 or 82,425

Step-by-step explanation:

3 0
4 years ago
You are given a standard deck of 52 cards. Three cards are chosen at random with replacement. What is the probability of choosin
geniusboy [140]

Answer:

Probability = 0.23

Step-by-step explanation:

Probability of picking it choosen those at random without replacement =Pr(ace) + Pr(spade)+Pr(a four)

Probability = 4/52 + 4/52 + 4/52

Probability= 3(4/52)

Probability = 0.23

4 0
3 years ago
Read 2 more answers
The equation of a line is y=3. Write an equation in slope intercept form of a line parallel to y=3 that passes through (0,6).
Dimas [21]

Answer:

y = 6

Step-by-step explanation:

We have to consider the equation of a line ( in slope - intercept form ) that is parallel to y = 3, and passes through the point ( 0, 6 ). Now y = 3 can be plotted as a horizontal line that passes through the point ( 0, 3 ). If we want a line that is parallel to this, it must be horizontal as well;

Let us consider the second point now. This line must pass through the point ( 0, 6 ). We can conclude that the line must be 1. Horizontal, and 2. Pass through point ( 0, 6 );

Equation - y = 6

7 0
3 years ago
A line passes through (2,-1) and (4,5)
MrRissso [65]

Answer:

Step-by-step explanation:

The equation of a straight line can be represented in the slope-intercept form, y = mx + c

Where c = intercept

Slope, m =change in value of y on the vertical axis / change in value of x on the horizontal axis

change in the value of y = y2 - y1

Change in value of x = x2 -x1

y2 = final value of y

y 1 = initial value of y

x2 = final value of x

x1 = initial value of x

The line passes through (2,-1) and (4,5),

y2 = 5

y1 = - 1

x2 = 4

x1 = 2

Slope,m = (5 - - 1)/(4 - 2) = 6/2 = 3

To determine the intercept, we would substitute x = 4, y = 5 and m= 3 into y = mx + c. It becomes

5 = 3 × 4 + c

c = 5 - 12 = - 7

The equation becomes

y = 3x - 7

5 0
3 years ago
If a+b= -1 then the value of a^3+b^3 - 3ab= ?
Neporo4naja [7]

Answer:

-1

Step-by-step explanation:

(a + b)^{3}  =  {a}^{3}  +  {b}^{3}  + 3ab(a + b) \\ ( - 1)^{3}  =  {a}^{3}  +  {b}^{3}  + 3ab( - 1) \\  - 1 =  {a}^{3}  +  {b}^{3}   -  3ab\\  \\  \huge \red{ \boxed{{a}^{3}  +  {b}^{3}   -  3ab =  - 1}}

5 0
3 years ago
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