All categories

3 years ago

Write two equivalent expressions to represent the sum of the angles of this triangle.

Mathematics

2 answers:

WARRIOR [948]3 years ago

8 0

5y+2y+2y=180
180=5y+4y

Sladkaya [172]3 years ago

7 0

Answer:
5y+(2y•2)

5y+2y+2y

2y•2 is the same thing as 2y+2y because 2+2=4 and 2•2=4

You might be interested in

A river is flowing at the speed of 2 miles per hour. A kayaker moves 528 feet upstream in 20 minutes. At this rate, how fast wou

CaHeK987 [17]

D=rt
r=(boatrate+riverrate)=(x+2)mph

d=528ft=528/5280mi=1/10mi
t=1/3hr
remember to keep the same units
so

1/10=(x+2)(1/3)
times both sides by 3
3/10=x+2
minus 2 or 20/10
-17/10=x
-1.7=x
it would be going -1.7mph (means going backwards)

4 0

3 years ago

Solve using substitution y = -4x + 10 y = -x + 1. <br>will give brainleist if correct<br>

gayaneshka [121]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Solve each of the following equations using a method other than the Quadratic Formula.

liraira [26]

Answer:

y^2-6y = 0

or, y(y-6) = 0

or, y = 0 or y = 6

n^2+5n+7 = 7

or, n^2+5n+7-7 = 7-7 ( Subtracting 7 from both sides)

or, n^2+5n = 0

or, n(n+5) = 0

or, n=0 or n= -5

2t^2-14t+3 = 3

or, 2t^2-14t = 0

or, 2t(t-7) = 0

or, t=0 or t=7

1/3x^2+3x-4 = -4

or, 1/3x^2+3x = 0

or, 1/3x(x+9) = 0

or, x=0 or x= -9

Zero is a common solution to each of the equations. This is because each of the equations had a variable outside the parenthesis with an operation of multiplication.

THANK YOU FOR READING.

8 0

2 years ago

Find the slope of every line that is parallel to the line on the graph.

melamori03 [73]

Answer:

-1/5

Step-by-step explanation:

What are parallel lines?

Lines that are parallel never touch. They can extend infinitely and they will still never touch. In order for this to happen the slope of the two lines must be the same. So if we want to find the slope of every line that is parallel to the line on the graph, we simply find the slope of the line of the graph.

Finding the slope

We can find the slope using the following formula:

$Slope=\frac{y_2-y_1}{x_2-x_1}$

Where the x and y values are derived from any given points on the line (x1,y1) and (x2,y2)

Here the given points are (-5,-1) and (0,-2)

So we have (x1,y1) = (-5,-1) meaning x1 = -5 and y1 = -1

We also have (x2,y2) = (0,-2) meaning x2 = 0 and y2 = -2

Now we plug these values into the formula

Recall formula : $Slope=\frac{y_2-y_1}{x_2-x_1}$

==> Plug in x1 = -5 , y1 = -1 , x2 = 0 and y2 = -2

$Slope=\frac{-2-(-1)}{0-5}$

==> simplify numerator and denominator

$slope = \frac{1}{-5}$

So the slope of the line is -1/5

This means the slope of any parallel line to that line would also have a slope of -1/5

8 0

2 years ago

When two numbers are not equal, an a0 is a sentence that uses the symbols >, <, ≥, ≤, or ≠ to show a relationship.

Naddik [55]

Answer: Im pretty sure it is the equal sign with the line between it

pretty sure that is it tho

Hope that helped

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers