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Oksanka [162]
4 years ago
8

Find the maximum value of the function

exFormula1" title=" - 8 + 2x - 4x ^{2} " alt=" - 8 + 2x - 4x ^{2} " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Mkey [24]4 years ago
7 0

Answer:

x = \frac{-b}{2a}

Step-by-step explanation:

Start by using P.E.M.D.A.S.

-8 is a 2x is b and -4x^{2} is c.

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Tarik rides a stationary bike and Janet rides her bike on a trail. Their data is shown
KiRa [710]

Answer:

Part a. The graph does not model a proportional relationship.

Part b. The values in table model a proportional relation.

3.5 minutes per mile.

Step-by-step explanation:

Part a.

The graph shown in the question representing Janet's data is not a straight line although it passes through the origin.

That is why the rate of change of distance with time is not constant.

Therefore, the graph does not model a proportional relationship.

Part b.

If we plot the data in the table using distance in miles along the y-axis and time in minutes along the x-axis, then we will get a straight line passing through the origin.

So, the values in the table model a proportional relation.

Now, Tarik's unit rate in minutes per miles will be \frac{7-0}{2-0} =3.5 minutes per mile. (Answer)

6 0
3 years ago
What is 6.729 x 8.3 (show ur work)
katen-ka-za [31]

Answer:92,817,765

Step-by-step explanation:Arrange the numbers one on top of the other and line up the place values in columns. The number with the most digits is usually placed on top as the multiplicand.

Starting with the ones digit of the bottom number, the multiplier, multiply it by the last digit in the top number

Write the answer below the equals line

If that answer is greater than nine, write the ones place as the answer and carry the tens digit

Proceed right to left. Multiply the ones digit of the bottom number to the next digit to the left in the top number. If you carried a digit, add it to the result and write the answer below the equals line. If you need to carry again, do so.

When you've multiplied the ones digit by every digit in the top number, move to the tens digit in the bottom number.

Multiply as above, but this time write your answers in a new row, shifted one digit place to the left.

When you finish multiplying, draw another answer line below your last row of answer numbers.

Use long addition to add your number columns from right to left, carrying as you normally do for long addition.

Long Multiplication with Decimals

Long multiplication with decimals using the standard algorithm has a few simple additional rules to follow.

Count the total number of decimal places contained in both the multiplicand and the multiplier.

Ignore the decimals and right align the numbers one on top of the other as if they were integers

Multiply the numbers using long multiplication.

Insert a decimal point in the product so it has the same number of decimal places equal to the total from step 1.

4 0
2 years ago
Read 2 more answers
Question 1: Which Operation should you do first when evaluating the
sleet_krkn [62]
C. multiply because of the order of operations
6 0
3 years ago
I need answers asap
trasher [3.6K]

Answer:

C. always true

Step-by-step explanation:

<1  and <4 from a straight line and a straight line is always 180 degrees so

6 0
3 years ago
HELP!! 4 people work an event where they make $156, They split the money evenly
Marina CMI [18]

Answer:

$34

-----------------------

6 0
3 years ago
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