11.) All you've got to do is subtract thirty-eight(38) from eighty-one(81). This will result in 43.
81-38=43
12.) You've got to subtract eighty-seven(87) from ninety(90) which will give you the answer 3.
87-90=3
Answer:
[1] x - 4y = 22
[2] 2x + 5y = -21
Step-by-step explanation:
Solve equation [1] for the variable x
[1] x = 4y + 22
// Plug this in for variable x in equation [2]
[2] 2•(4y+22) + 5y = -21
[2] 13y = -65
// Solve equation [2] for the variable y
[2] 13y = - 65
[2] y = - 5
// By now we know this much :
x = 4y+22
y = -5
// Use the y value to solve for x
x = 4(-5)+22 = 2
I am sorry if I get it wrong.
The equations y = x² - 2x + 1 and 2x - y = 2 intersect at the points (1, 0) and (3, 4)
<h3>What is an equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Given that the quadratic function intersecting a linear function at points (1, 0) and (3, 4)
This means that this points lie on both functions.
y = x² - 2x + 1 and 2x - y = 2
For point (1, 0):
y = 1² - 2(1) + 1 = 0; 2(1) - 0 = 2
For point (3, 4):
y = 3² - 2(3) + 1 = 4; 2(3) - 4 = 2
The equations y = x² - 2x + 1 and 2x - y = 2 intersect at the points (1, 0) and (3, 4)
Find out more on equation at: brainly.com/question/2972832
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The first one would be approximately -0.8. It has a negative slope and the data points are fairly close together.
The second one is almost a straight line so it would be very close to 1. I would say 0.97
The closer the data is to a straight line the closer the r value is to 1 or negative 1.
Hope this helps.
You multiply the length of the model car by the meters from the actual car. It’s easier to convert one unit of measurement to match with the other. I found it easier to convert 18.2 cm to meters which is 0.182 m. Now we multiply 0.182m by 0.3m to get the length of the actual car.
The answer would be 0.0546m. Or if you prefer centimeters, then the answer would be 5.46 cm. Either way is fine.
Hope this helped, please let me know if I was correct. :D