Find the value or values of the Y in the quadratic equation y squared + 4 y + 4 equals 7
Answers
- 7 - 7
y² + 4y - 3 = 0
y = -(4) ± √((4)² - 4(1)(-3))
2(1)
y = -4 ± √(16 + 12)
2
y = -4 ± √(28)
2
y = -4 ± 2√(7)
2
y = -2 ± √(7)
y = -2 + √(7) U y = -2 - √(7)
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How do u do this ??? Alistair buys an antique chair for £600. It is expected to increase in value at the rate of 4.5% each year. How much is it expected to be worth in 3 years ??
How do you graph y=18
Round 2.327 liters to the nearest tenth of a liter
Answers
The amount of change can either be an increase or a decrease.
It can be calculated as follows:
amount of change =
If the amount of change is positive, then it is an increase
If the amount of change is negative, then it is a decrease
Then, we need to convert this amount into a percentage:
Changing the amount into a percentage can simply be done by multiplying this amount by 100
This means that:
% of change = amount of change * 100
Combining the two steps:
% of change =
Examples:
The original price of a certain product was $10. It then became $12. Find the % of increase.
% of change =
This means that the price increased by 20%
The temperature decreased from 25 degrees to 20 degrees. Find the percentage of decrease.
% of decrease =
This means that the temperature decreased by 20%
Hope this helps :)
Answer:
Step-by-step explanation:
First, we need to get the amount of change:
The amount of change can either be an increase or a decrease.
It can be calculated as follows:
amount of change =
If the amount of change is positive, then it is an increase
If the amount of change is negative, then it is a decrease
Then, we need to convert this amount into a percentage:
Changing the amount into a percentage can simply be done by multiplying this amount by 100
This means that:
% of change = amount of change * 100
Combining the two steps:
% of change = * 100
Examples:
The original price of a certain product was $10. It then became $12. Find the % of increase.
% of change = = 20%
This means that the price increased by 20%
The temperature decreased from 25 degrees to 20 degrees. Find the percentage of decrease.
% of decrease = = -20%
This means that the temperature decreased by 20%
Hope this helps :)
Answers
Answer:
20x4-5+2001/974= 77.05
is your answer
lemon juice, j, used in a recipe is described by the equation shown.
j = 2w
How many cups of water are needed for each cup of lemon juice?
Show your work.
Answers
Answer:
Step-by-step explanation:
The relationship between the number of cups of water, w, and the number of cups of
lemon juice, j, used in a recipe is described by the equation shown.
j = 2w
To evaluate the number of cups pr cup of juice, find the value of w given j=1
1=2w
w=1/2
iHalf a cup of water is needed for each cup of lemeonce ju
Choose all answers that apply:
(Choice A)
A
P=5P=5P, equals, 5 and Q=12Q=12Q, equals, 12
(Choice B)
B
P=-5P=−5P, equals, minus, 5 and Q=-12Q=−12Q, equals, minus, 12
(Choice C)
C
P=5P=5P, equals, 5 and Q=-5Q=−5Q, equals, minus, 5
(Choice D)
D
P=-12P=−12P, equals, minus, 12 and Q=-12Q=−12
Answers
Answer:
Option A, C and D are correction Option.
Step-by-step explanation:
Given Equation, -5x + 12 = Px + Q
We have to value of P and Q from given options such that equation has exactly one solution.
First simplify the equation,
-5x + 12 = Px + Q
-5x - Px = Q - 12
(-5 - P)x = Q - 12
from above P can not have value equal to -5 as if P = -5
we have (-5 - (-5))x = Q - 12
(-5 + 5)x = Q - 12
this equation has infinitely many solution as it removes x from the equation.
So, Option B is not our solution other than that All Options are our solution.
A).
P = 5 & Q = 12
⇒ (-5 - 5)x = 12 - 12
x = 0
C).
P = 5 & Q = -5
⇒ (-5 - 5)x = -5 - 12
-10x = -17
D).
P = -12 & Q = -12
⇒ (-5 - (-12))x = -12 - 12
7x = -24
Therefore, Option A, C and D are correction Option.
We are given equation : -5x+12=Px+Q.
Let us compare left and right sides of the equation.
On comparing Px = -5x.
Dividing both sides by x, we get
Px/x = -5x/x.
P = -5.
Let us compare other part of the given equation.
Q =12.
Therefore, we got P=-5 and Q =12.
Non of the given options seems correct.
Please check the option have P=-5 and Q =12.
Answers
The value of the expression 3-3x6+2 is -13.
What is Expression?
An expression is combination of variables, numbers and operators.
The given expression is 3-3x6+2
Three minus three times of six plus two.
The operators in the expression are plus and minus which are of addition , subtraction and multiplication.
To solve this equation, we need to first multiply 3 and 6, 3×6
which is 18.
we subtract 18 from 3, which is -15.
3-18+2
5-18
When eighteen is subtracted from 5 we get minus thirteen.
-13
Hence, the value of the expression 3-3x6+2 is -13.
To learn more on Expressions click:
#SPJ2
3 -(3*6) +2 Multiply 3*6 first and get 18
3 -18+2 - Same as 3-(18)+2
-15 +2 3 -18 is the same as doing 18 -3, but with the negative
Do the same to -15 +2
Answer is -13
Answers
Answer:
A: 0.77
Step-by-step explanation:
Edg