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2 years ago

Hector got 12 out of 20 words right in a spelling test what percentage did he get wrong

Mathematics

2 answers:

statuscvo [17]2 years ago

5 0

Answer:

Step-by-step explanation:

enot [183]2 years ago

4 0

Answer:

60% is the answer

Step-by-step explanation:

it becomes 3/5 then 6/10 and 6/10 = 60%

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An acidophilus culture containing 150 bacteria doubles in population every hour. predict the number of bacteria in 12 hours

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The number of bacteria that will exist in 12 hours is 614,400.

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3 years ago

1-x-5x=8x-5<br> Show your work

nataly862011 [7]

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Step-by-step explanation:

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2 years ago

Read 2 more answers

THIS IS URGENT I NEED HELP ASAP.(9x 10^-3)^2

joja [24]

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Evaluate 1/2a^-4b^2 for a =-2 and b=4

$\frac{1}{2} (-2)^{-4} *4^{2}\\\\\frac{1}{2} *\frac{1}{(-2)^{4}} *4^{2}\\\\\frac{1}{2} *\frac{1}{2^{4}}*4^{2}\\\\\frac{1}{2} *\frac{1}{16}*4^{2}\\\\\frac{1}{2} *\frac{1}{16}*16=\frac{1}{2}$

A number raised to a negative exponent is sometimes negative.

Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great Valentines Day! :-)

- Cutiepatutie ☺❀❤

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3 years ago

What are the coordinates of the midpoint of GH with endpoints (-2,5) and<br> H(4,1)?

kozerog [31]

Answer:

(1, 3)

Step-by-step explanation:

Given coordinates of 2 endpoints, G(-2, 5) and H(4, 1), midpoint of AB is calculated as shown below:

Midpoint (M) of GH, for G(-2, 5) and H(4, 1) is given as:

$M(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2})$

Let $G(-2, 5) = (x_1, y_1)$

$H(4, 1) = (x_2, y_2)$

Thus:

$M(\frac{-2 + 4}{2}, \frac{5 + 1}{2})$

$M(\frac{2}{2}, \frac{6}{2})$

$M(1, 3)$

Coordinates of the midpoint of GH = (1, 3).

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2 years ago

Which shows the expression below simplified?

patriot [66]

Answer:

Step-by-step explanation:

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2 years ago