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2 years ago

What is the value of a

Mathematics

2 answers:

mihalych1998 [28]2 years ago

4 0

Answer:

The Value of a could be anything, as a represents a variable.

egoroff_w [7]2 years ago

4 0

Answer: well if you had a pic i could help but if not then the value of a could be anything

Step-by-step explanation:

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Matt help plus<br> Nskdnisbeineijsbd

mestny [16]

Answer:

Step-by-step explanation:

8 0

3 years ago

Quick!!!!!!!!!!!!!!!

Degger [83]

Answer: discrete.

Step-by-step explanation:

Discrete variable

It is a variable whose value is evaluated by counting.

Example: Number of books published in a month.

Continuous variable

It is a variable whose value is evaluated by measuring ( not countable).

Example: Distance: 1.52 m

Since the number of dental visits a randomly chosen person had for the past 5 years is a countable.

here, Variable: Let X =number of dental visits a randomly chosen person had for the past 5 years

So, the random variable described is discrete.

7 0

2 years ago

Can anyone help me with these?

Lapatulllka [165]

Answer:

im sorry i have no idea

Step-by-step explanation:

6 0

3 years ago

A scientist running an experiment starts with 100 bacteria cells. These bacteria double their population every 15 hours. Find ho

kati45 [8]

Answer:

it takes 24 hours for the bacteria cells to increase to 300

Step-by-step explanation:

WE use the formula

$C= A(b)^{\frac{t}{d}}$

Where A is the initial amount of bacteria= 100

bacteria doubles every 15 hours so b=2

d= 15 because d is the time taken to double the number

t is the number of hours

c is the number of bacteria after t hours = 300

Plug in all the values and solve for 't'

$300= 100(2)^{\frac{t}{15}}$

Divide both sides by 100

$3=(2)^{\frac{t}{15}}$

Now we take log on both sides

$log(3)=log(2)^{\frac{t}{15}}$

As per log property we can move the exponent before log

log a^m = m log(a)

$log(3)=\frac{t}{15}log(2)$

Divide both sides by log(2)

$\frac{log(3)}{log(2)} = \frac{t}{15}$

Multiply both sides by 15

$\frac{log(3)}{log(2)}*15=t$

t = 23.77

So its approximately 24 hours

4 0

3 years ago

Solve the system using elimination.

JulsSmile [24]

The solution is (1,0)

Explanation:

The two equations are $3x+16y=3$ and $3x-16y=3$

We need to solve the equation using elimination method.

Adding the two equations, we get,

$3x+16y=3\\3x-16y=3\\-------\\6x=6$

$x=1$

Thus, the value of x is 1

Substituting $x=1$ in the equation $3x+16y=3$ , we get,

$3(1)+16y=3$

Simplifying, we get,

$16y=3-3$

$16y=0$

$y=0$

Thus, the value of y is 0.

The solution is (1,0)

7 0

3 years ago