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4 years ago

Please HELP ME!!!!!!!!

Mathematics

1 answer:

Varvara68 [4.7K]4 years ago

7 0

Step-by-step explanation:

(3, -2)

(x, y) → ((x - 5), (y + 6))

(3, -2) → ((3 - 5), (-2 + 6))

(3, -2) → (-2, 4) which is the third option

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24.5 Celsius.

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The director of a community recreation center conducted a six-week study to examine the effects of four types of exercise—streng

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Answer: The treatments in the study are strength training, flexibility training, aerobics, and jogging.

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A correct description of a feature of the study is that the treatments in the study are strength training, flexibility training, aerobics, and jogging.

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3 years ago

☆15 POINTS AND MARKED BRAINLIEST IF CORRECT☆ look at the image above to view the question!

swat32

Answer:

3125 bacteria.

Step-by-step explanation:

We can write an exponential function to represent the situation.

We know that the current population is 100,000.

The population doubles each day.

The standard exponential function is given by:

$P(t)=a(r)^t$

Since our current population is 100,000, a = 100000.

Since our rate is doubling, r = 2.

So:

$P(t)=100000(2)^t$

We want to find the population five days ago.

So, we can say that t = -5. The negative represent the number of days that has passed.

Therefore:

$\displaystyle P(-5)=100000(2)^{-5} = 100000 \Big( \frac{1}{32}\Big) = 3125 \text{ bacteria}$

However, we dealing within this context, we really can't have negative days. Although it works in this case, it can cause some confusion. So, let's write a function based on the original population.

We know that the bacterial population had been doubling for 5 days. Let A represent the initial population. So, our function is:

$P(t)=A(2)^t$

After 5 days, we reach the 100,000 population. So, when t = 5, P(t) = 100000:

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And solving for A, we acquire:

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So, our function in terms of the original day is:

$P (t) = 3125 (2)^t$

So, it becomes apparent that the initial population (or the population 5 days ago) is 3125 bacteria.

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3 years ago

Read 2 more answers

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Nesterboy [21]

Answer:

Jack's linear speed is 126ft/min

Bob's linear speed is 176ft/min

Step-by-step explanation:

First of all, find the circumference of both circles given the radius; Jack, 2pir (10)=63ft. Bob 2pir(14)=88ft. Now, realize that the merry go round revolves 2 times per min; 2rpm, so multiply each result by 2 and there you go.

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3 years ago

Solve the equation by factoring! 2x^2 + 5x + 2 = 0

luda_lava [24]

Answer:

answer is down below

Step-by-step explanation:

2x^2 + 5x + 2 =0

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and 4x+2 becomes 2(2x+1)

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3 years ago