Answer:
Step-by-step explanation:
The area of an isoceles triangle is:
A = base x height / 2
The base is the unequal side in the isosceles triangle. You have to calculate the height using the Pythagorean Theorem.
Since two side are equal in length, if you draw a vertical lined from where these two sides meet and bisect the base, you will create two right triangles.
So a² + b² = c² where c is the hypotenuse of the right triangle. This hypotenuse is also the two equal sides of the isosceles triangle. They told you the length of the base but you need to divide that in half since your line bisected the base.
So now you know one side of the right triangle is 8cm which is half of 16cm. You also know the hypotenuse is 17cm. Solve the Pythagorean Theorem for the other side and that will give you the height of your bisecting line.
8² + b² = 17² OR 64 + b² = 289
Solve for b
b² = 289 - 64 OR b² = 225 and finally b = which is 15
So now you can calculate the area of the triangle:
A = 16 x 15 / 2 or 240 / 2 which is 120
So the area is 120 cm²
Answer:
126
Step-by-step explanation:
The difference of Y in terms of D - A = 7 + 2 = 9
The difference of X in terms of D - C = 7 + 7 = 14
Area = 9 × 14 = 126
Answer:
$162.94
Step-by-step explanation:
Because 20% off of 192.15 = $162.94 and
$153.72 + (6.0%) $9.22 = $162.94
The linear function that can be used to represent the temperature in x hours after 6 pm is given by:
f(x) = 37 - 0.65x.
<h3>What is a linear function?</h3>
A linear function is modeled by:
y = mx + b
In which:
- m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.
In this problem:
- The y-intercept is the initial temperature of 37ºC.
- The slope is the rate of change of -0.65ºC/h.
Hence the function is:
f(x) = 37 - 0.65x.
More can be learned about linear functions at brainly.com/question/24808124
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Answer:
i think its 4
Step-by-step explanation: