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Alex
3 years ago
15

How to solve -3 1/3 + 1 2/3

Mathematics
1 answer:
Airida [17]3 years ago
8 0

Answer:

-1/3

Step-by-step explanation:

= -3(1/3) + 1(2/3)

= -1 + 2/3

= (-3+2)/3

= -1/3

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Cindy plants a daffodil plant. If the plant has one daffodil flower to start with, and the number of daffodils triples every wee
Romashka [77]

Answer:

There will be 729 daffodils in the sixth week

Step-by-step explanation:

Given

a = 1 --- start

r = 3 --- weekly rate

Required

Number of daffodils in 6th week

This question illustrates an exponential function which is represented as

f(x) = ab^x

Where

f(x) = Number of daffodils at x week

x = The week

a = Initial number of daffodils

b= rate

So, we have:

a = 1

b = r = 3

Hence:

f(x) = 1 * 3^x

f(x) = 3^x

At the 6th week

x = 6

So:

f(6) = 3^6<em> ---- as a power</em>

f(6) = 3 * 3 * 3 * 3 * 3 * 3<em> --- related multiplication</em>

f(6) = 729<em> --- standard form</em>

4 0
3 years ago
colby and jaquan are growing bacteria in an experiment in a laboratory. Colby starts with 50 bacteria in his culture and the num
kaheart [24]
To get started, we will use the general formula for bacteria growth/decay problems:

A_{f} =  A_{i} ( e^{kt} )

where: 
A_{f} = Final amount
A_{i} = Initial amount
k = growth rate constant
t = time


For doubling problems, the general formula can be shortened to:

kt = ln(2)

Now, we can use the shortened formula to calculate the growth rate constant of both bacteria:

Colby (1):
k_{1} = ln(2)/t
k_{1} = ln(2)/2 = 0.34657 per hour

Jaquan (2):
k_{2} = ln(2)/t
k_{2} = ln(2)/3 = 0.23105 per hour

Using Colby's rate constant, we can use the general formula to calculate for Colby's final amount after 1 day (24 hours).

Note: All units must be constant, so convert day to hours.

A_{f1} = 50( e^{0.34657(24)})
A_{f1} = 204,800

Remember that the final amount for both bacteria must be the same after 24 hours. Again, using the general formula, we can calculate the initial amount of bacteria that Jaquan needs:

A_{f2} = 204,800 =  A_{i2} ( e^{0.23105(24)} )
A_{i2} = 800

3 0
3 years ago
21 points for whoever can answer the first question!!
hodyreva [135]

Answer:

21

Step-by-step explanation:

21 боладыма! дұрыспа

8 0
4 years ago
PLEASE HELP WILL MARK BRAINLIEST THANK YOUUUU
alina1380 [7]

Hi!

<h3>Your answer is the first option, 0.17.</h3>

To solve this, we will have to do a few things.

  1. Solve for the area of the triangle
  2. Solve for the area of the rectangle
  3. Find what percent the area of the triangle is of the area of the rectangle

<h3><u>STEP ONE</u></h3>

<u>Area of a triangle:</u> area=\cfrac{base*height}{2}

Use the given values to plug it into the formula:

area=\cfrac{4*6}{2}

area=\frac{24}{2}

area=12

The area of the triangle is 12 centimeters squared.

<h3><u>STEP TWO</u></h3>

<u>Area of a rectangle:</u> area=length*width

Use the given values to plug it into the formula:

area=10*7

area=70

The area of the rectangle is 70 centimeters squared.

<h3><u>STEP THREE</u></h3><h3 />

To do this step, we must divide the area of the triangle by the area of the rectangle.

This will give us the percent that the triangle is of the rectangle, and hence will give us the probability of it landing inside of the rectangle.

So:

12/70=0.17

<em>Therefore, the probability that a point chosen randomly inside the rectangle is in the triangle is 0.17.</em>

7 0
2 years ago
Ill give correct one brainliest
adelina 88 [10]

Answer: make 6 jumps which are 0.4 long to get 2.4

Step-by-step explanation:

4 0
3 years ago
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