Answer:
74 inches
Step-by-step explanation:
P = 1/2(b1+b2)h
= 1/2(15+22)4
= 1/2(37)4
= 1/2(148)
= 74'
Let
be the legs of the triangle, with ![x[tex]\mathrm{area}_{\rm square} = y^2](https://tex.z-dn.net/?f=x%5Btex%5D%5Cmathrm%7Barea%7D_%7B%5Crm%20square%7D%20%3D%20y%5E2)

The square has 3 times the area of the triangle, so

Meanwhile, in the triangle we have

Now,

Answer: The value of x is -2.
Step-by-step explanation:
y= 1/2x + 2
y= -3/2x-2
1/2x + 2 = -3/2x -2
+2 +2
1/2x + 4 = -3/2x
-1/2x -1/2x
4= -2x
x= -2
The lowest grade he could earn is 120% of the grade at the end of the semester.
The following statement is given:
I have 90% after about 75% of the semester.
We are asked to find the lowest grade by the end of this semester.
<h3>What is Percentage?</h3>
A percentage is a number expressed as a fraction of 100.
- 50% = 50/100 = 1/2
- 25% = 25/100 = 1/4
- 20% = 20/100 = 1/5.
We can write this statement "I have a 90% grade after about 75% of the semester" as:
90% grade = 75% semester.............(1)
By the end of the semester means at 100% semester.
Multiplying equation (1) by 100/ 75 on both sides of the equation.
We get,
(100/75) x 90% grade = (100/75) x 75% semester
(100 x 90)/75 % grade = 100% semester
120% grade = 100%
Thus the lowest grade he could earn is 120% of the grade at the end of the semester.
Learn more about Percentages here:
brainly.com/question/24159063
#SPJ1
Answer:
A sinusoidal function is like a sine function and it has few real life usages.
Step-by-step explanation:
1.The periodic rotations of a crankshaft in an engine.
2. The rotation of a Ferris wheel.
3. The fluctuating hours of daylight in a specific location throughout a calendar year
The sinusoidal wave is a curve that describes a smooth repetitive oscillation. In these 3 examples, we can plot the movement of the object in a graph paper and we will see a sine wave. That's why these are the real life example of sinusoidal wave.