What number must be added to the expression below to complete the square? x2 - 18x
A. -81
B. -9
C. 81
D. 9
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Related Questions
A set of data has the following linear regression equation:= 1 + 3x What does the equation predict for a value of x = 13? A. y = 40 B. y = 38 C. y = 4 D. y = 9
-2.678 + 4.5 + (-0.69)
Y = 10 + 16x − x^2y = 3x + 50 If (x1, y1) and (x2, y2) are distinct solutions to the system of equations shown above, what is the sum of the y1 and y2?
K=A+32 solve for Variable A
B) No longer used by many countries
C) Used by all countries
D) Based on measurements in pounds.
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The gold standard is No longer used by many countries. Therefore, the correct option is option B.
What is gold standard?
A monetary system known as the "gold standard" links the value of a nation's currency or paper money directly to the price of gold. Countries agreed to exchange paper money for a certain amount of gold under the gold standard. A nation that adheres to the gold standard establishes a fixed gold price and buys and sells gold at that rate.
The value of the currency is established using that set price. The worth of a dollar, for instance, would be equal to 1/500th of an ounce of gold if the U.S. fixed the price of gold at $500 per ounce. The gold standard is No longer used by many countries.
Therefore, the correct option is option B.
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Answers
In order to isolate Y, you must add 0.45 to the other side of the equal sign, since you are to add 0.45 to -0.45 to isolate Y.
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Hope this helps.
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Answer:
7.1
Step-by-step explanation:
Here's how we have to set this up. We will start with the first statement, which algebraically looks like this:
x + 6.5 = y (since we don't know what x is, we don't know what the sum of x and 6.5 is. We will call that new number y.)
Next, we are dividing that sum, y, by 13.6:
(again, since we don't know what y is, we don't know what y divided by 13.6 is. We will call that new number z.)
Finally, the quotient, z, is multiplied by 5:
5z
Now we work backwards, subbing in our unknowns, one at a time.
5z
If z = , we sub it into the expression 5z:
and
if y = x + 6.5 we plug that in for y:
since we know that whole mess is equal to 5. NOw we solve for x, the original number. Begin by dividing both sides by 5 to get:
Now multiply both sides by 13.6 to get:
x + 6.5 = 13.6 so
x = 7.1
Check this if you'd like by plugging in the 7.1 for x in the intial equation to solve for y, then plug that into the next equation to solve for z, then see if they're equal (they are, but test it out for yourself).
5
8
10
72
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Answer:
The answer is 10
Answer:
10
Step-by-step explanation:
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The square root of 13 is 3.60555, but rounding that to the nearest tenth would be 3.6.
Hope that helped :)
Final answer:
The square root of 13 is approximately 3.60555127546. When rounded to the nearest tenth, this value becomes 3.6.
Explanation:
To find the nearest tenth of the square root of 13, you first need to calculate the square root of 13 using a calculator. The calculator will show that the square root of 13 is approximately 3.60555127546.
To round this to the nearest tenth, look at the second digit after the decimal point which is 0. If this number is 5 or larger, we round up the first digit after the decimal point, if not, we keep it as it is. In this case, the value of the second digit after the decimal point is 0, which is less than 5. Therefore, the square root of 13 rounded to the nearest tenth is 3.6.
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