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3 years ago

A 78 gram sample of Uranium loses half of its mass each year. What is the Exponential equation??

Mathematics

1 answer:

olasank [31]3 years ago

6 0

Answer: B , 78(0.5) ^x

Step-by-step explanation: it’s being multiplied by 0.5, which is half.

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Write the number 0.00000123 in scientific notation.

Ugo [173]

$0.00000123 = 1.23 * 10^{-6}$

8 0

3 years ago

What type of line is perpendicular to a linear equation that is not a function

enyata [817]

Answer:

Determine whether lines are parallel or perpendicular given their equations; Find equations of . We can begin by using point-slope form of an equation for a line. No. For two perpendicular linear functions, the product of their slopes is –1.

Step-by-step explanation:

6 0

3 years ago

Purple paint:mix 2 quarts of red paint for every3quarts of blue paint. How many blue paint is needed to make 35 quarts of purple

Phoenix [80]

Answer: 21 quarts of blue paint

Step-by-step explanation: To make a batch of purple paint, it is necessary 2 quarts of red and 3 quarts of blue, resulting in 5 quarts of purple.

So, to make 35 quarts of purple:

5x = 35

x = 7

It is needed, in total, 7 quarts of purple.

As, the ratio is 2 quarts of red to 3 quarts of blue:

Blue: 7 x 3 = 21

For 35 quarts of purple paint, it's necessary 21 quarts of blue paint.

4 0

3 years ago

What is the slope of the line that passes through the points (2, 3) and (8, 6)? 2/7 2 3/5 1/2

baherus [9]

Answer:

$\frac{1}{2}$

Step-by-step explanation:

THe slope of a straight line is given by the formula:

$m=\frac{y_2-y_1}{x_2-x_1}$

Where

m is the slope

x_1 and y_1 are the first coordinate pair points [(2,3)]

x_2 and y_2 are the second coordinate pair point [(8,6)]

So, we know that:

x_1 = 2

x_2 = 8

y_1 = 3

y_2 = 6

Now we substitute and find the value of slope to be:

$m=\frac{y_2-y_1}{x_2-x_1}\\m=\frac{6-3}{8-2}\\m=\frac{3}{6}\\m=\frac{1}{2}$

8 0

4 years ago

What is the probability that a card drawn randomly from a standard deck of 52 cards is a five? Express your answer as a fraction

s344n2d4d5 [400]

According to the given information and what we know about a standard deck of cards, there are 4 fives in a deck of 52 cards.

To find the probability of drawing a five divide the number of fives by the total number of cards:

$\frac{4}{52}=\frac{2}{26}=\frac{1}{13}$

6 0

1 year ago