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BartSMP [9]
3 years ago
11

2. A bacteria population is modeled by the equation p(n)= 10,000.2", where h is the number of hours since

Mathematics
1 answer:
Valentin [98]3 years ago
5 0

Answer: its 3 the answer is 3

Step-by-step explanation:

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Suppose the length of each side of a square is increased by 5 feet.if the perimeter of the square is now 56 feet.what were the o
skelet666 [1.2K]
We can find the length of the sides now by dividing 56 by 4, which gives us 19.  Subtracting 5 from 19 gives us our answer of 14 feet.
7 0
3 years ago
A tin of biscuits contains shortbread and choc-chip biscuits in the ratio 2:3 . The tin contains 80 biscuits. How many short-bre
Aleksandr [31]

Answer:

32

Step-by-step explanation:

There are 80 biscuits inside the tin.

Also, they said that those biscuits are in the ratio

Short bread    :      Choc - chip

          2          :        3

Altogether there are 5 shares ( 2 + 3)

And now you can divide 80 by 5 to find how many biscuits contain per a share.

80 ÷ 5 = 16

In the question, they asked us to to find the number of short biscuits inside the tin.

Let us find that.

There are 2 shares for short bread biscuits.

So,

Number of short biscuits ⇒ 2 × 16

                                         ⇒ 32

Hope this helps you :-)

5 0
2 years ago
What is the y-intercept of the line y = -7x + 1?
sesenic [268]
 <span>y-intercept when x = 0
</span>so
y = -7x + 1
y = -7(0) +1
y = 1
7 0
3 years ago
Read 2 more answers
When a dummy variable is included in a regression model that has one numerical independent variable, what assumption do you need
sukhopar [10]

Answer:

Step-by-step explanation:

You need to assume that the slope between the dependent Varian and the numerical independent variable is zero.

In regression analysis, to find the effect of one independent variable on the dependent variable, there has to be no interference from the other independent variables whether they be categorical (dummy) or numerical independent variables.

A dummy variable is one which takes on the value of 0 or 1, to represent the absence or presence (respectively) of a given category which is expected to influence the dependent variable.

When a dummy independent variable is included in a regression model, to know the effect of that dummy or category (e.g. day =1, night =0) on the dependent variable, the influence of the numerical independent variable has to be removed temporarily.

In a regression equation,

Y=a+bX+cK

Y is the dependent variable

a is the intercept on the vertical axis on the graph

b is the slope between the dependent variable Y and the independent numerical variable X

c is the slope between the dependent variable Y and the dummy variable K

3 0
3 years ago
What is the answer? Plz help
zloy xaker [14]

Answer:

5:15; 5 cups of juice and 15 cups of lemonade

Step-by-step explanation:

when simplified, the ratio is 1:3; so the first number multiplied by 3 equals the 2nd number

other answers: 6:18, 7:21, 8:24

8 0
2 years ago
Read 2 more answers
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