A triangle has sides with lengths of 8 miles, 15 miles, and 19 miles. Is it a right triangle?

Please Help!!! Will give brainliest

qaws [65]

36 cm^2

Step-by-step explanation:

Small window

Length: 2cm

Width: 2cm

Area: 4 cm^2

Big window

Length: 4cm

Width: 3cm

Area: 12 cm^2

Total area of the windows:

(Area of 4 small windows + area of 1 big window)

(4 cm^2 x 4 + 12cm^2)

= 28 cm^2

Above window (approx.)

Rectangle

Length: 3cm

Width: 2cm

Area: 6 cm^2

Triangle

Base: 1cm

Height: 1cm

Area: 2 x 0.5 cm^2 = 1 cm^2

Square (between the triangles)

Length: 1cm

Width: 1cm

Area: 1 cm^2

= 8 cm^2

TOTAL AREA OF ALL WINDOWS

= AREA OF 4 WINDOWS + AREA OF BIG WINDOW + AREA OF ABOVE WINDOW

= 16 cm^2 + 12 cm^2 + 8 cm^2

I hope I made the explanations clear enough to make it easier for you to understand!

8 0

1 year ago

What is an equation in slope-intercept form for the line that passes through the points (1,-3) and (3,1)

sergey [27]

Step-by-step explanation:

Hey there!

Note: Use double point formula for finding the eqaution which passes through two points.

Given;

The points are; (1,-3) and (3,1).

Use double point formula.

$(y - y1) = \frac{y2 - y1}{x2 - x2} (y - y1)$

Put all values.

$(y + 3) = \frac{1 + 3}{3 - 1} (x - 1)$

Simplify it.

$(y + 3) = \frac{4}{2} (x - 1)$

$y + 3 = 2(x - 1)$

$y + 3 = 2x - 2$

$y = 2x - 2 - 3$

$y = 2x - 5$

Therefore, the eqaution is y = 2x-5.

Alternative:

Steps:

Find slope using slope formula and use one point formula.
Simplify in the form of y = mx+c form.

Formula:

Slope = (y2-y1)/(x2-x1)
One point formula= (y-y1)= m(x-x1)

The points are; (1,-3) and (3,1).

Now;

Slope= (1- (-3))/(3-1)

= (1+3)/2

= 2

Again;

Using one-point formula.

(y+3) = 2(x-1)

y+3= 2x-2

y = 2x -5

Therefore, the equation is y = 2x-5.

(You can follow up any method you want)

Hope it helps....

3 0

3 years ago

How do i solve x/2+1/3=x/3+1/2

stepladder [879]

X/2+1/3=x/3+1/2
x/2=x/3+1/2-1/3
x/2 - x/3 = 3/6 - 2/6
x/2 - x/3 = 1/6
3x/6 - 2x/6 = 1/6
x/6 = 1/6
x = 1/6 * 6

x = 1

8 0

4 years ago

Read 2 more answers

The sum of three consecutive even integers is 90. Find the three even integers.

fenix001 [56]

Answer:

28;30;32

Step-by-step explanation:

x+x+2+x+4=90

3x=84

x=28(first integer)

28+2=30(second)

28+4=32(third)

4 0

3 years ago

Complete the equation of the line whose slope is 5 and y-intercept is (0,4)

kap26 [50]

4 = 5(0) + b

4 = 0 + b

b = 4

8 0

3 years ago

Read 2 more answers