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3 years ago

A line is perpendicular to y = -2x - 1

Mathematics

1 answer:

ArbitrLikvidat [17]3 years ago

7 0

Answer:

y = 2x + [-3]

Step-by-step explanation:

Slope of the perpendicular line = m = 2

Point = (x,y) = (6,9)

So, x = 6, y = 9

Putting in slope intercept equation

$y=mx+c$

9 = (2)(6) + c

c = 9-12

c = -3

Putting m and c in slope intercept equation

y = 2x + [-3]

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The furniture store where Jada's sister works bought a table for $200 and sold it for $350. What percentage was the markup? I wa

nevsk [136]

Answer:

divide 350 by 200

Step-by-step explanation:

3 0

3 years ago

Determine the rate of change between the points (-1,-1) and (1,-1).

AVprozaik [17]

Answer:

$\displaystyle m = 0$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinate Planes

Coordinates (x, y)
Slope Formula: $\displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}$

Step-by-step explanation:

*Note:

Rate of change is slope.

Step 1: Define

Identify.

Point (-1, -1)

Point (1, -1)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m.

Substitute in points [Slope Formula]: $\displaystyle m = \frac{-1 + 1}{1 + 1}$
[Order of Operations] Simplify: $\displaystyle m = \frac{0}{2}$
Simplify: $\displaystyle m = 0$

4 0

3 years ago

Find the value of a 3:9=4:a

Goryan [66]

Answer:

it is equals to 3 okay ^^

7 0

4 years ago

Read 2 more answers

Haii guys I need help ASAP pleasee

Evgen [1.6K]

Answer: 100

Step-by-step explanation: Part B is 100, you get that answer because you have ten put out the 1 and then the two is telling you to put 2 zeros .

3 0

4 years ago

PLZ I NEED HELP NOW THANKS

xeze [42]

Answer:

1240.4 mm²

Step-by-step explanation:

SA of Pentagonal pyramid:

(as)(5/2) + (sl)(5/2)

↑ ↑

base area lateral area

_____________________

a: apothem (in-radius) length, s: side length.

l: slant height.

______________________

Since we are already given the base area which is 440.4 mm². All we need to do is find the lateral area and add both areas together.

Given that the triangular face of the lateral part has a side/base length of 16mm, and a 20mm slant height.

A triangle has an area of ½bh and since there are 5 of these faces total, (5)(½bh) = (5/2)(bh). In a three dimensional perspective, b will be s and h will be l so (sl)(5/2).

With this information the surface area is:

(16)(20)(5/2)mm + (440.4 mm²) →

800 mm² + 440.4 mm² =

1240.4 mm²

7 0

3 years ago