3 years ago

The perimeter of a rectangle can be found using the formula P = 4s. True or False?

Mathematics

2 answers:

Stells [14]3 years ago

6 0

Answer:

False

Step-by-step explanation:

Travka [436]3 years ago

5 0

Only in the special case where the rectangle happens to be a square.

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Please solve 6/2(2x1)=x

bogdanovich [222]

Its x=6
I’m sure
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3 years ago

Use the function rule y=5x+1. What is y when x=3

Dmitry_Shevchenko [17]

Answer:

y = 16

(3, 16)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

y = 5x + 1

x = 3

Step 2: Evaluate

Substitute in x: y = 5(3) + 1
Multiply: y = 15 + 1
Add: y = 16

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3 years ago

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Vivi scored 5 goals in Saskatoon sticks lacrosse tournament. This was 1/8 of her teams goals. How many goals did vivi’s team sco

yKpoI14uk [10]

5/ (1/8) = 40. Therefore the team scored 40 goals

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4 years ago

Find a cartesian equation for the curve and identify it. r = 10 tan(θ) sec(θ)

Vilka [71]

For a cartesian equation
$x=r\cos\theta \ and \ y=r\sin\theta \\ \\ \cos\theta=\frac{x}{r} \ and \ \sin\theta=\frac{y}{r} \\ \\ \tan\theta=\frac{\sin\theta}{\cos\theta}=\frac{y}{r}\cdot\frac{r}{x}=\frac{y}{x} \\ \\ \sec\theta=\frac{1}{\cos\theta}=\frac{r}{x}$

Given r = 10 tan(θ) sec(θ)
$r=10\tan\theta\sec\theta=10\cdot\frac{y}{x}\cdot\frac{r}{x} \\ \\ \Rightarrow10y=x^2 \\ \\ \Rightarrow y= \frac{1}{10} x^2$

Therefore,the curve is a parabola opening upward with vertex (0, 0).

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3 years ago

Simplify each expression by using the Distributive Property and combine like terms to simplify the expression.-2(-x-1)-(x+9)

Ymorist [56]

-2(-x-1)-(x+9)

= -2x + 2 - x - 9

Rearrange

= -2x - x + 2 - 9

= -3x - 7

8 0

1 year ago