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3 years ago

Can someone help me?

Mathematics

1 answer:

Triss [41]3 years ago

4 0

Answer:

Step-by-step explanation:

Just remember area equals length times width it’s like a window to a door etc!!

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(-1,3) (3,0) (-1.-2) find perimiter

KATRIN_1 [288]

Answer:

$p$ ≈ $14.5$

Step-by-step explanation:

Find the distance between the three pairs first using the distance formula:

$\sqrt{(x2-x1)^2+(y2-y1)^2}$

Take the first two points, $(-1,3)(3,0)$ and insert the values:

$\sqrt{(3-(-1))^2+(0-3)^2}$

Simplify parentheses (two negatives makes a positive):

$\sqrt{(3+1)^2+(0-3)^2}\\\\ \sqrt{(4)^2+(-3)^2}\\\\\sqrt{16+9}\\ \\\sqrt{25}=5$

The distance between the first two points is 5. Use the nest two points, $(3,0)(-1,-2)$ and insert values:

$\sqrt{(-1-3)^2+(-2-0)^2}$

Simplify parentheses:

$\sqrt{(-4)^2+(-2)^2}\\ \\\sqrt{16+4} \\\\\sqrt{20}=4.5$

The distance between the nest two point is about 4.5. Use the remaining two points, $(-1,-2)(-1,3)$ and insert values:

$\sqrt{(-1-(-1))^2+(3-(-2))^2}$

Simplify parentheses (two negatives makes a positive):

$\sqrt{(-1+1)^2+(3+2)^2}\\\\\sqrt{(0)^2+(5)^2}\\ \\\sqrt{0+25}\\ \\\sqrt{25}=5$

The distance between the last points is 5. Add the distances together to find the perimeter of the triangle:

$5+4.5+5\\10+4.5\\14.5$

The perimeter is about 14.5.

4 0

3 years ago

a point with a positive x-coordinate and a negative y- coordinate is reflected over the y-axis . what sentence will describe the

scoray [572]

Answer:

The sentence that describes the reflected point (x,-y) over the y-axis

Step-by-step explanation:

Since not sure if specific options are available lets answer this question in a general notation.

Let us consider the Co-ordinate system in two dimensions (i.e. and ); where the horizontal line represents the values and the vertical line representes the values.Now we are told that we have a point with a positive x-coordinate and a negative y-coordinate, thus:

This means our point is located at the 4th Quadrant (where values are positive and values are negative).

Reflecting it over the y-axis means that our point is now located on the 3rd Quadrant (where both and values are negative).

Therefore the new reflected point will now be:

''a point with a negative x-coordinate and a negative y-coordinate''

7 0

3 years ago

Use the distributive property to writer an equivalent expression 4(6f + 3g - 1)

prisoha [69]

Answer:

24f + 12g - 4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Distributive Property

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

4(6f + 3g - 1)

Step 2: Expand

[Distributive Property] Distribute 4: 4(6f) + 4(3g) + 4(-1)
Multiply: 24f + 12g - 4

7 0

3 years ago

Write and equation of the line that contains the points below. (0, 3) and (-6, -3)

mojhsa [17]

Answer:

y = x + 3

Step-by-step explanation:

The image below shows proof that y = x + 3 is the equation of the line that contains the points (0, 3) and (-6, -3).

Hope this helps! :)

6 0

3 years ago

Question 4

inessss [21]

Answer:

Plot for Variable C Only

Step-by-step explanation:

Trust me, unless your teacher switched the order of the charts in which case it's the linear one!

3 0

4 years ago