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4 years ago

Horizontal lines are __________ perpendicular to vertical lines. question 10 options:

Mathematics

1 answer:

LenKa [72]4 years ago

7 0

A. Always
These lines are perpendicular since their slopes are negative reciprocals.

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Daysi buys a video game on sale. If the video usually costs $30.00, and it

olasank [31]

Answer:

$22.5

Step-by-step explanation:

The original price is $30 and it's on sale for 25% off. Since 25% is a quarter of the total price, I divided 30÷4=7.5. $7.5 is 25% of $30, so 7.5 is the amount taken off the original price. To find what Daysi paid, I subtracted 30-7.5=22.5. $22.5 is the result after the 25% off, so Daysi paid $22.5.

7 0

3 years ago

Plz help me with this

Nitella [24]

Answer: C) y ≥ 3x - 2; $y\leq \dfrac{1}{2}x+3$

Step-by-step explanation:

Blue line:

y-intercept (b) = -2

slope (m) is 3 up, 1 right = 3

shading is above

⇒ y ≥ 3x - 2

Yellow line:

y-intercept (b) = 3

slope (m) is 1 up, 2 right = $\dfrac{1}{2}$

shading is below

$\implies \bold{y\leq \dfrac{1}{2}x+3}$

8 0

4 years ago

$7.825 per hour × $32.125 hours round answer to the thousandth of a dollar???

xenn [34]

Correct it is right u have to multipl

4 0

4 years ago

The line with equation ax+by=20 passes through the points(-2,10) and (1,5) find a and b

Doss [256]

$ax+by=20 \\ \\(-2,10) \\ \\ a*(-2)+b*10 = 20 \\ \\-2a +10b = 20 \\ \\ (1,5)\\ \\ a*1+b*5 = 20 \\ \\ a +5b = 20$

$\begin{cases} -2a+10b =20\\ a+5b =20 \ /*2\end{cases} \\ \\\begin{cases} -2a+10b =20\\ 2a+10b =40 \end{cases}\\--------\\ 20b=60 \ / :20 \\ \\b=\frac{60}{20} =3$

$-2a+10b=20 \\ \\-2a +10*3=20 \\ \\-2a +30=20\\ \\-2a=20-30\\ \\-2a=-10 \ /: (-2)$

$a=\frac{10}{2}=5\\ \\\begin{cases} a= 5 \\b=3\end{cases}$

6 0

4 years ago

Read 2 more answers

Drag the tiles to the boxes to form correct pairs. Not all tiles will be used. Match each set of vertices with the type of quadr

katrin2010 [14]

I'm sorry but there's not enough info

Step-by-step explanation:

5 0

3 years ago