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Tom [10]
3 years ago
5

L

Mathematics
1 answer:
hammer [34]3 years ago
6 0

Answer:

5 postcards

Step-by-step explanation:

65/100 + 30/100 (change it) = 95/100

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If y varies jointly with x and z, and y = 200 when x = 8 and z = 10, what is x when y = 165 and z = 11?
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The answer is 2.5

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Find the product in its simplest form<br><br> 2/5 * 3/7
Mamont248 [21]

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6/35

Step-by-step explanation:

I just used my calculator...

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I really please need help. Does anyone know these last 6 questions. Brainliest answer and 13 points
Vedmedyk [2.9K]
29. B
30. C
31. 2 cups
32. 1.5 times
33. <span>Because milli means 1/1000 of a meter, centi means 1/100 of a meter while kilo </span><span>means 1000 meters</span>
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6 0
3 years ago
F(x)=-9x^2-2x and g(x)=3x^2+6x-9, find (f-g)(x) and (f-g)(-4)
Sergio039 [100]

Answer:

(f-g)(x) = -12x^{2} - 8x + 9

(f-g)(-4) = -151

Step-by-step explanation:

To find f-g(x) we subtract the common terms. So

f(x) = -9x^{2} - 2x

g(x) = 3x^{2} + 6x - 9

(f-g)(x)

(f-g)(x) = f(x) - g(x) = -9x^{2} - 2x - (3x^{2} + 6x - 9) = -9x^{2} - 2x - 3x^{2} - 6x + 9 = (-9 - 3)x^{2} + (-2 - 6)x + 9 = -12x^{2} - 8x + 9

(f-g)(-4)

(f-g)(x) = -12x^{2} - 8x + 9

We replace x by -4

(f-g)(-4) = -12(-4)^{2} - 8(4) + 9= -151

(f-g)(-4) = -151

5 0
3 years ago
I need to check a number line of 0 to 4 using 1/3
vivado [14]
Draw a straight line. Label the left side "0" and then make lines with
"2" "3" and "4".

1/3 means it i 1/3rd of 1. Which means you need to divide everything from 0 - 1 into 2 segments. The first segment on the left side is your 1/3rd spot. The next one is your 2/3rd place, and then finally the 1 is your 3/3 (or one whole.)
7 0
3 years ago
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