solve for y.try factoring first,if factoring is not possible or difficult use quadratic formula,(y2 2isabovey -10y+23=0)
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Related Questions
Four different sets of objects contain 2, 5, 6, and 7 objects, respectively. How many unique combinations can be formed by picking one object from each set?
The area of a circle of radius r is given by A=\pi r^2A=πr 2 and its circumference is given by C=2\pi rC=2πr. At a certain point in time, the radius of the circle is r=8r=8 inches and the area of the circle is changing at a rate of \frac{dY}{dt}=\pi\sqrt{2} dt dA =π 2 square inches per second. How fast is the radius of the circle changing at this time
In this figure, AFC=EFC. Which statement must be true?a) AD Perpendicular EBb) EB Perpendicular CAc) AD Perpendicular CEd) CF Perpendicular AE
School is a nae nae not cool >:(
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Answer:
Hello my friend! The first step is to isolate the x and the 40 like this: x2 = 40.
Step-by-step explanation:
After you do that, you can perform the inverse operation of the x2, wich is the sqrt of 40. This way, you will have x=sqrt40 . X~=6.32
Answer:
The answer is B
Step-by-step explanation:
b x + (x + 8) =72
c x(x + 8) = 72
d x(x - 8) = 72
Answers
Answer:
let x is the smaller number
bigger number is x + 8
The sum of two numbers is 72
so
x + (x+8) = 72
answer
x + (x + 8) = 72
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Two numbers add up to 72
let's assume they r x and y
ome number is 8 more than the other
so it will be xand x+8
Therefore x+x+8=72
B:7.3893
C:7.389
D:738.9
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Final answer:
The numerical constant 'e' equals approximately 2.71828. If we square 'e,' we get the approximate value of 7.38905. Rounding to three decimal places, the correct answer is 7.389.
Explanation:
The constant e is an essential numerical constant that is the base of the natural logarithm. It is approximately equal to 2.71828. When you want to find the value of e^2, meaning 'e' squared, you multiply 'e' by itself.
To find the value to 3 decimal places, we operate: 2.71828 * 2.71828= 7.38905.
Therefore, rounding to 3 decimal places, e^2 is equal to 7.389. So, the correct answer to your question is option C: 7.389.
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Answer:
C
Step-by-step explanation:
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Distance = speed × time
Given
Distance = 225 km
Time = 2.5 hrs
Find speed:
D = s × t
225 = s × 2.5
Divide by 2.5 on either sides to isolate s
2.5 and 2.5 cancels out
90 = s
speed = 90 km/hr (as the given were km and hr)
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Final answer:
After subtracting the initial 5-minute cost from the total balance and dividing by the cost of additional minutes, you would have about 24 minutes remaining on your long-distance calling card when rounding to the nearest whole number.
Explanation:
To solve how many minutes you have remaining on your long-distance calling card, you'll first need to subtract the cost of the first 5-minute period from your total balance, which gives you $12.00 - $4.25 = $7.75.
Next, you would divide this amount by the cost of each additional minute which is $0.40. This calculation ( $7.75 / $0.40 ) results in a total of approximately 19.375 minutes.
Therefore, since you already have 5 minutes from the initial payment, you would add these two values together (5 + 19 = 24 minutes). But, according to the task you need to round your answer to the nearest whole number. As such, you can say you have approximately 24 minutes left on your card.
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Final answer:
To determine the number of minutes remaining on the calling card, subtract the cost of the first 5 minutes from the remaining balance and divide by the additional cost per minute. You have approximately 19 minutes remaining on the calling card.
Explanation:
To determine the number of minutes remaining on the calling card, we need to subtract the cost of the first 5 minutes from the remaining balance and then divide the result by the additional cost per minute.
- Subtract the cost of the first 5 minutes ($4.25) from the remaining balance ($12.00): $12.00 - $4.25 = $7.75.
- Divide the result by the additional cost per minute ($0.40): $7.75 ÷ $0.40 ≈ 19.38 minutes.
- Round the result to the nearest whole number: 19.38 ≈ 19 minutes.
Therefore, you have approximately 19 minutes remaining on the calling card.
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y = 2x
y = x + 4
y = 12 - x
Answers
x=3 and x=4.
Let's test first option:
for x= 3, we have y = (3) + 3 = 6, which matches (3, 6)
Now for x=4, we have y = (4) + 3 = 7 which doesn't match (4, 8).
Do the same for any other options.
You should get B, y = 2x.