Answer:
y = 4x -5
Step-by-step explanation:
Gradient is also known as slope . The gradient of a line is represented by the equation
Slope (m) = y - y1/ x - x1
Where m = 4 , x1= 1 and y1 = -1
Imputing the values into the equation
m = y - y1/ x - x1
4 = y - -1/x - 1
Cross multiply, we have
y + 1= 4(x - 1)
Expand
y+1= 4x - 4
Subtract 1 from both sides
y+1-1= 4x -4-1
y = 4x -5
I hope this was helpful, please mark as brainliest
Answer:
$(19x + 42n + 15)
Step-by-step explanation:
Devi bought 7 skirts at $x each, n skirts at $12 each, (2n + 1) skirts at $15 each and 4 skirts at $3x each. Find the total cost of the skirts she bought.
total cost of the skirt bought can be determined by adding the total costs of each shirt bought
7 skirts at $x each = $7x
n skirts at $12 each = $12n
(2n + 1) skirts at $15 = (2n + 1) x 15 = 30n + 15
4 skirts at $3x each = $12x
7x + 12n + 30n + 15 + 12x
combine like terms
19x + 42n + 15
The formula of the dot product of two vectors:
We have:
![\overrightarrow{a}=[1,\ -4,\ 1]\\\\\overrightarrow{b}=[0,\ 3,\ -3]](https://tex.z-dn.net/?f=%20%5Coverrightarrow%7Ba%7D%3D%5B1%2C%5C%20-4%2C%5C%201%5D%5C%5C%5C%5C%5Coverrightarrow%7Bb%7D%3D%5B0%2C%5C%203%2C%5C%20-3%5D%20)
Calculate the dot product:
Calculate the lengths of vectors:
Substitute:
Answer: Measure of the angle between the vectors a and b is equal 146°.
Answer:
1/2 (1 half)
Step-by-step explanation:
any number less than 4 is "1,2, and 3" and a standard die has 6 numbers. so if you have 3 out of 6 is equivalent to 1/2
