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3 years ago

6) Four bacteria are placed in a petri dish. The population will double every day. The formula for the

Mathematics

1 answer:

Black_prince [1.1K]3 years ago

3 0

Answer:

128

Step-by-step explanation:

N(t) = 4(2)^t

N(t) = 4(2)^5

N(t) = 4(32)

N(t) = 128

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The figure below is a parallelogram. Find the measure of the variables.

Ilya [14]

Answer:

Step-by-step explanation:

Since 6 = 5r + 1, r = 1

As for s, if s is 2, then you can do

4 x 2 + 5 = 13 & 6 x 2 + 1 = 13

13 = 13

So B!

Hope that helps!

8 0

3 years ago

Help please I'm stuck show and explain your work

Deffense [45]

The expressions D, E, and F represent a correct solution to the equation.

Step-by-step explanation:

Step 1:

First, we need to solve the given equation and find the value of x which satisfies the equation.

$6(x+4)=20, (x+4) = \frac{20}{6} = 3.333,$

$x = 3.333 - 4 = -0.666.$

So the value of x for the given equation is -0.666.

Step 2:

Now we evaluate the values of the six given options to see which ones have an x value of -0.666.

A. $\frac{20-4}{6}= \frac{16}{6} = 2.666,$

B. $\frac{1}{6} (20-4)= \frac{1}{6} (16)=\frac{16}{6} = 2.666,$

C. 20 -6 -4 = 20 - 10 = 10.

D. $\frac{20}{6} -4= 3.333 - 4 = -0.666,$

E. $\frac{1}{6} (20-24) = \frac{1}{6} (-4)= -0.666,$

F. $(20-24)\frac{1}{6} = (-4)\frac{1}{6} = -0.666.$

So the options D, E, and F represent a correct solution to the given equation.

7 0

4 years ago

Simplified form of ( (2^-2) )^-3 x ( (2^-3) )^2

Nataly [62]

Answer:

( (2^-2) )^-3 x ( (2^-3) )^2

((1/2²)^-3×(1/2³)²

1/(1/4)³×(1/8)²

4³×1/8²

64/64

7 0

3 years ago

the number of mosquito at the beginning of the summer was 4,000. the population of mosquito is expected to grow at a rate of 25%

lara31 [8.8K]

Answer:

about 9765 mosquitoes

Step-by-step explanation:

This is an exponential growth problem which follows the formula:

$A=P(1+r)^t$

Where A is the future amount (we need this after 4 months)

P is the initial amount (here, it is 4000)

r is the rate of increase (here it is 25% or 0.25)

t is the time period (here t= 4, because we want to know after 4 months)

plugging in all the available/given info, we can solve for A:

$A=P(1+r)^t\\A=4000(1+0.25)^4\\A=4000(1.25)^4\\A=9765.63$

Since, no fractional mosquitoes, we round down to 9765 mosquitoes

3 0

3 years ago

Can anyone help with these. I just started this math class and I have not had a class in over 10 years. I did good on some of th

Elena-2011 [213]

Answer:

4. 4 tablets

5. no, 5 tablets

6. 19320 mg, 19.32 g

Step-by-step explanation:

4. 500 ÷ 125 = 4 tablets

5. a) no

b) 150 ÷ 30 = 5

you should be given 5 tablets

6. There are approximately 2.205 lbs in one kg.

Therefore, 142 lb = 142 ÷ 2.205 = 64.4 kg

300mg/kg/day

Therefore, number of mg per day = 300 x 64.4 = 19320 mg

b) As 1000mg = g

19320 ÷ 1000 = 19.32 g (nearest hundredth)

4 0

3 years ago