Answer:
-2
Step-by-step explanation:
The standard equation of a line is y = mx+c
m is the slope
c is the intercept
Given
Slope = -3
Get the intercept c;
Substitute m = -3 and (1, -9) into y = mx+c
-9 = -3(1) + c
-9 = -3 + c
c = -9 + 3
c = -6
The equation becomes
y = -3x + (-6)
y = -3x-6
f(x) = -3x-6
The zero of f occurs at f(x) = 0
0 = -3x-6
3x = -6
x = -6/3
x = -2
Hence the zero of the function is -2
(v=l*w*h is a volume of a rectangle).
v=2*2*2
V= 4*2
V=8
so, 8 is your answer.
Answer:
![176.25inches^{2}](https://tex.z-dn.net/?f=176.25inches%5E%7B2%7D)
Step-by-step explanation:
The formula for the area of the triangle is : ![\frac{base*height}{2}](https://tex.z-dn.net/?f=%5Cfrac%7Bbase%2Aheight%7D%7B2%7D)
To work this out you would first need to break the shape down into 4 smaller triangles.
Then you would need to work out the area of the triangles. You can do this by multiplying the base by the height and dividing it by 2. We will first work out the area of the first triangle at the top. To work out the area you would multiply the base of 7.5 by the height of 7.5, this gives you 56.25. Although the formula says you should divide the answer by 2 however as there are two identical triangles this action does not need to be done.
The next step is to work out thew area of the bottom triangles. To do this you would multiply the base of 7.5 by the height of 16, this gives you 120.
Now that we have found the area of both sides of the kite we can now add the values of 56.25 and 120 to work out the full area of the kite, this gives you 176.25 square inches.
1) Break the kite into smaller triangles.
2) Work out the area of the triangles at the top.
![7.5*7.5=56.25](https://tex.z-dn.net/?f=7.5%2A7.5%3D56.25)
3)Work out the area of the triangles at the bottom.
![7.5*16=120](https://tex.z-dn.net/?f=7.5%2A16%3D120)
4) Add the area of both sides.
![56.25+120=176.25inches^{2}](https://tex.z-dn.net/?f=56.25%2B120%3D176.25inches%5E%7B2%7D)
Answer:
Step-by-step explanation:
B
Answer: not related
Step-by-step explanation: Statistical tests are employed when trying to establish the existence or non-existence of relationship between two variables. Variables may be numerical or categorical, in most cases, regression is employed in establishing relationship between. numerical variables. However, the Chisquare test of independence is employed when analysing and trying to establish if a relationship exists between two categorical variables. With the null hypothesis maintain that both variables are independent are hence unrelated while the alternative hypothesis states otherwise.