karmaxnagisa20

18.12.2019 • 

Mathematics

1. an equation of a line perpendicular to the line represented by the equation y=-1/2x-5 and passing through (6,-4) is
a. -1/2x+4
b. -1/2+1
c. y=2x+14
d. y=2x-16

2. consider the line given by the equation 5x+2y=8. which of the following gives the equation a line parallel to the given line but with a different y-intercept
a. y=-5/2x+4
b. y=-5/2x+8
c. y=-2/5x+4
d. y=-2/5x+8

3. which two lines are perpendicular?
a.) 2x-y=5 b.) 2x+y=3 c.) y=2x+3
a. a and b
b. a and c
c. b and c
d. none of the equations are parallel

4. which kine is perpendicular to the given line? y=2/5x-3
a. 5x+2y=4
b. y=2/5x+3
c. -2/5x+y=5
d. 2x+5y=3

Ответ:

cruzc2

15.10.2020

Mathematics

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() *0.06

Step-by-step explanation:

Cleo buys x packs of markers, y wide-ruled notebooks, and z college-ruled notebooks.

All spiral-bound notebooks, whether wide-ruled or college-ruled, sell for $1.20 each. This gives expressions : 1.20y and 1.20z

A store sells four-packs of permanent markers in assorted colors for $3.19 per pack. Cleo buys x packs of markers so expression becomes :

(3.19 per pack)

As Cleo buys x packs of markers, y wide-ruled notebooks, and z college-ruled notebooks.

The combined expression becomes:

The store charges a 6% sales tax on Cleo’s total bill. So, expression becomes:

() *0.06

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