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:
Answer will be 4.
Step-by-step explanation:
Given equation is:
41 = 12 d - 7
or
12 d = 41 + 7
12 d = 48
d = 48/12
d = 4
Two <em>possible answers</em> are:
23.65 and 23.72.
Explanation:
For the first number, 23.65, we are rounding to the tenths place. 23.65 itself is smaller than 23.7. Looking behind the tenths place, the digit behind it is 5. This means we round the tenths place up; this becomes 23.7.
23.72 is larger than 23.7. We will round it to the tenths place as well. Looking behind the tenths place, we have a 2; this means we "round down." This means leave the 7 as it is and drop the other digits behind it. This gives us 23.7.
Answer:
x = 45
Step-by-step explanation:
6x+26 = 296
6x+26-26 = 296-26
6x = 270
x = 45
Answer:
y = -2x + 3
Step-by-step explanation:
y = mx + b
slope = m
m = y2 - y1/x2 - x1
-3 - 3/3 - 0 = -6/3
m = -2
y = -2x + b
b = y-intercept
b = 3
y = -2x + 3
