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2 years ago

I'll add a photo of the problem!

Mathematics

1 answer:

pychu [463]2 years ago

4 0

<u>Answer:</u>

<h2>A. False</h2><h2>B. True</h2><h2>C. False</h2><h2>D. False</h2>

<u>Explanation:</u>

A. False

if b = 1 then g ≥ 2

1 + 2 = 3 and 2 < 3

B. True

this statement is an opposite situation of the previous statement

if the previous statement is false then this statement is true

C. False

the minimum of balls in the bag is 3

2 ≠ 3

D. False

if we can determine A, B and C whether they'e true or false then we have enough information

hence this statement is False

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The amount, A, in milligrams, of radioactive material remaining in a container can be modeled by the exponential function A(t) =

lisov135 [29]

Answer: 4 years

Step-by-step explanation:

A(0) has to be amount at start. Assume that's 5mg

Then A(t) = 5×(0.5)^(0.25t) = 5×2^(-t/4),

(also known as 5 exp(-λ t) with λ = ln(2)/4, incidentally).

We need to such that A(t) = 2.5mg, or 2^(-t/4) is 1/2, which happens when -t/4 is -1, or t is 4.

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3 years ago

At combs store there is a 25% chance a customer enters the store within one minute of closing time. Describe the complementary e

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The complementary event is that a customer does not enter the store within one minute of closing, and the probability is 75%.

The complement is found by subtracting from 100%; 100-25 = 75%.

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3 years ago

The Fuschia Bot clicks ____ times in 0.75 sec, and its Unit Rate is 8 clicks per second. Find the number of clicks.

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Answer: The Fuschia Bot clicks _6_ times in 0.75 sec,

Step-by-step explanation:

Multiply the unit rate by time:

.75 sec × 8 clicks/sec

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2 years ago

Write an equation for a line that is parallel to 2x+5y=15 and passes through the point (-10, 3)

Lyrx [107]

Answer:

The equation of the line is,

$y = - \frac{2}{5} x - 1$

Step-by-step explanation:

First, you have to write it in a form of y = mx + b :

$2x + 5y = 15$

$5y = 15 - 2x$

$y = 3 - \frac{2}{5} x$

$y = - \frac{2}{3} x + 5$

When both lines are parallel to each other, they will have to same gradient value. So the equation of the line is y = (-2/5)x + b. Next, you have to find the value of b by substutituting (-10,3) into the equation :

$y = - \frac{ 2}{5}x + b$