All categories

2 years ago

Laura determined the difference between 8 and –2 using the additive inverse. Her steps are shown below.

Mathematics

2 answers:

horrorfan [7]2 years ago

7 0

Answer:

8 should have remained positive.

Step-by-step explanation:

NNADVOKAT [17]2 years ago

6 0

Answer: The 8 should have remained positive.

You might be interested in

X=8 y=4 z=0 w=2 <br><br> W(x-2z)=

Elena-2011 [213]

16 because 2•0 is 0. 8-0 is 8 and 2(8) is 16

5 0

3 years ago

the profit for a taco truck business follows this function, where x is the price of a taco(in dollars) and y is the daily profit

Sati [7]

Answer:

x = √2 + 2, -√2 + 2

Step-by-step explanation:

y = -2(x-2)² + 4

-2(x-2)² + 4 = 0 --- replace y with 0

-2(x - 2)² = -4 --- subtract 4 from both sides

(x - 2)² = $\frac{-4}{-2}$ --- divide both sides by -2

(x - 2)² = 2 --- simplify

x - 2 = +-√2 --- square root both sides

x - 2 = √2 --- split into 2 equations

x - 2 = -√2

x = √2 + 2 --- solve first equation

x = -√2 + 2 --- solve second equation

x = √2 + 2, -√2 + 2

4 0

3 years ago

Read 2 more answers

−2/3x = 10y – 2 written in standard form

nasty-shy [4]

Answer:

-2x=30y-6

2x+30y-6=0

Step-by-step explanation:

3 0

3 years ago

Pentagon TEXAS has vertices at T(1, 8), E(3, 8), X(6, 2), A(3, 2), and S(1, 4). What is the area of Pentagon TEXAS?

Tamiku [17]

The area of the pentagon is 19 square units

The coordinates of the pentagon are given as:

$T = (1, 8)$

$E =(3, 8)$

$X =(6, 2)$

$A=(3, 2)$

$S = (1, 4)$

The area of the pentagon is then calculated using:

$Area = \frac 12|(x_1y_2+x_2y_3+x_3y_4+x_4y_5+x_5y_1) -(y_1x_2+y_2x_3+y_3x_4+y_4x_5+y_5x_1)|$

So, we have:

$Area = \frac 12|(1 \times 8 +3 \times 2+6\times2+3 \times 4 + 1 \times 8) -(8\times3+8\times6+2\times3+2\times1+4\times1)|$

Simplify the expressions in both brackets

$Area = \frac 12|46 -84|$

$Area = \frac 12|-38|$

Remove absolute bracket

$Area = \frac 12 \times 38$

$Area = 19$

Hence, the area of the pentagon is 19 square units