Answer:
51 cm^2
Step-by-step explanation:
the formula for area of an icoselese triangle is
A = b * h / 2
h is a line from the angle where the 5 and 5 intersect to the middle of the third line
You can find h using the pythagoran theorm with the 5 being the hypotenuse and the a being half the third line
4^2 + b^2 = 5^2
16 + b^2 = 25
b = 3, so h = 3, so now
A = 8 * 3 / 2
A = 24 / 2
A = 12 cm^2
now we have the triangle, just multiply that by 2 (top and bottom)
12 * 2 = 24
sides
8 * 1.5 = 12
5 * 1.5 * 2 = 15
now add all of it
15 + 12 + 24 = 51
Answer:
41⁰
Step-by-step explanation:
180 - 98 = 82⁰
2x = 82⁰
x = 82/2
= 41⁰
-2713
when multiplying two powers that have the same base, you can add the exponents. In this example, you can see how it works. Adding the exponents is just a short cut! The "power rule" tells us that to raise a power to a power, just multiply the exponents.
Answer:
y = -7x + 0
Step-by-step explanation:
slope-intercept form is y = mx + b where m is the slope and b is the y-intercept
use any of the points on the graph. (0,0) (-1,7). find the slope
slope = y2 - y1/ x2 - x1
slope 7 - 0/ -1-0 = 7/-1 = -7. our slope is -7
so now we already have y = -7x + b. but we still have to find the y-intercept.
-7/1 = y - 7/x - (-1) cross multiply.
y - 7 = -7x - 7
y + 7x = -7 + 7
y + 7x = 0
y = -7x + 0
Answer:
The equation of the line is y = 6x - 14
Step-by-step explanation:
To find the equation of this line, start by using the two points with the slope formula to find the slope.
m(slope) = (y2 - y1)/(x2 - x1)
m = (16 - 4)/(5 - 3)
m = 12/2
m = 6
Now that we have the slope, we can use that and either point in point-slope form to find the equation.
y - y1 = m(x - x1)
y - 4 = 6(x - 3)
y - 4 = 6x - 18
y = 6x - 14
