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patriot [66]
3 years ago
15

I need help fast. Number 18 and 19

Mathematics
1 answer:
balu736 [363]3 years ago
3 0

Answer:

18.=400%

Step-by-step explanation:

80/20 we get 4 then we multiple 4 ×100 we get 400 and we check the answer 400% ×20 =80

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Anyone know how to do this ? If so can u help me ? Thanks <3
kramer

Answer:

24.1 x 10^4 = 241000 .056 x 10^7 = 560000 507 x 10^-5 = 0.00507

Step-by-step explanation:

for scientific notation, all you need to do is start at the decimal point (or end of whole number) and move over the amount of spaces (the exponent) to the right. if it is a negative exponent, instead of moving to the right, you should move to the left.

for example : 500 x 10^3

when you start from the last zero and move to the right, you need to fill the space with three zeroes.

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5 0
4 years ago
A 2-column table has 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is la
andriy [413]

Answer:

Initial value is \frac{1}{2}.

Step-by-step explanation:

Let us assume that the exponential function is f(x) = a(b)^{x} ...... (1)

Now, the point (0,\frac{1}{2}) will satisfy the above equation.

Now, this point on the graph of the exponential function will be sufficient to find the initial value of the function (1) i.e. a.

Now, putting the value x = 0 and y = \frac{1}{2} in the equation (1) we get, f(x) = a(b)^{x}

⇒ \frac{1}{2} = a(b)^{0} = a

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10 0
3 years ago
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Super easy question for 50 points and brainliest
Korvikt [17]

7 = s²

s = x + 2

7 = (x + 2)²

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What is 656,32.25 in expanded form
maks197457 [2]
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-1/4u+3/2=-6 solve for U
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-\dfrac{1}{4}u+\dfrac{3}{2}=-6\qquad|\cdot4\\\\\not4^1\cdot\left(-\dfrac{1}{\not4_1u}\right)+\not4^2\cdot\dfrac{3}{\not2_1}=4\cdot(-6)\\\\-u+2\cdot3=-24\\\\-u+6=-24\qquad|-6\\\\-u=-30\qquad|\cdot(-1)\\\\\boxed{u=30}

5 0
4 years ago
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