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mars1129 [50]
3 years ago
12

Q28. In a sale, the normal price of a book is reduced by 30%. The sale price of the book is £2.80 Work out the normal price of t

he book.​
Mathematics
1 answer:
lisov135 [29]3 years ago
8 0

Answer:

0.90

Step-by-step explanation:

090. = 0.90

30/2.80

28

00

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Solve 4e^2x-3=12 please help
Anestetic [448]

4*e^{2x} -3 = 12

Step 1:

Here we have -3 in subtraction on the left side, so when we take it to the right we apply opposite operation of subtraction that is addition.

4*e^{2x} = 12+3

4*e^{2x} = 15

Step 2:

Next we have 4 in multiplication on left side, so dividing right side by 4,

e^{2x} = 15/4

e^{2x} = 3.75

Step 3:

taking log on both sides

ln ( e^{2x}) = ln(3.75)

{2x} =ln 3.75

Step 4:

Dividing right side by 2,

x= ln (3.75) /2 = 0.66088

Answer : x = 0.66088..


5 0
3 years ago
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natima [27]

Answer:

what are yo tring to sya

Step-by-step explanation:

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3 years ago
Does the function satisfy the hypotheses of the Mean Value Theorem on the given interval? f(x) = 3x2 − 2x + 1, [0, 2] Yes, it do
expeople1 [14]

Answer:

Yes , function is continuous in [0,2] and is differentiable (0,2) since polynomial function are continuous and differentiable

Step-by-step explanation:

We are given the Function

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The two basic hypothesis of the mean valued theorem are

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upon checking the condition stated above on the given function

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Now the function satisfies both the conditions

so applying MVT

6x-2 = f(2) - f(0) / 2-0

6x-2 = 9 - 1 /2

6x-2 = 4

6x=6

x=1

so this is the tangent line for this given function.

   

4 0
3 years ago
Someone plz help meee
coldgirl [10]

Answer:

The second one

Step-by-step explanation:

7 0
4 years ago
Solve for x. Show the equation you used and your work.
kirza4 [7]
ST/VT = UT/WT6+14/14  = (x+4)+21/21X= 20*21/14 - 21x=420/14-25X=30-25x=5
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4 years ago
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