What is the base of a quantity declining at a rate of 8% per year

The function, f(t) = 100.000 describes the number of people who will become infected with a virus in t weeks. Approximately how

Alchen [17]

Answer:

100,000

Step-by-step explanation:

We are given a function: f(t) = 100,000, where,

f(t) is a function that tells us about the number of people who will be infected in t weeks. Here t that is number of week is the independent variable and f(t) is the dependent variable.

We observe that f(t) is a constant function that is it does not depend on the value of t. Whatever may be the value of t it will always take the constant value of 100,000.

So, after ten weeks that is we put t = 10, we get,

f(10) = 100,000

Thus, after 10 weeks 100,000 people will be infected.

5 0

3 years ago

What fraction of one hour (60 minutes) is represented by the following numbers of minutes? Simplify each fraction whenever possi

Alenkasestr [34]

Answer:

$\frac{1}{4}$

$\frac{1}{3}$

8 0

2 years ago

What is the answer to x + 23 = 15

Roman55 [17]

Answer:

-8

Step-by-step explanation:

1. x + 23 = 15

2. x + 23 = 15

-23 -23

3. x = -8

5 0

3 years ago

Read 2 more answers

Question 1,2, and 3 how do i factor those? Can you show the work and explain how?

DiKsa [7]

1: $3n^{2}+9n+6$

notice that each part is divisible by 3

$3n^{2}$ ÷ 3 = $n^{2}$

9n ÷ 3 = 3n

6 ÷ 3 = 2

so it becomes $3(n^{2} +3n+2)$

3n can be rewritten as 2n+n

-you want to rewrite it into two numbers that multiply to the number that's alone (in this case 2)

which would get you

$3(n^{2} +2n+n+2)$

Now that it's rewritten, you can factor out n + 2 from the equation.

the answer is

3(n+2)(n+1)

And you can check that by multiplying (n+2)(n+1) which is $n^{2} +2n+n+2$ and then each of those by 3, which is $3n^{2} +6n+3n+6$ or $3n^{2}+9n+6$ , our origional equation

2: $28+x^{2} -11x$

So I rewrote this as $x^{2} -11x+28$ (it's the same thing, just reordered using the commutative property)

now -11x can be rewritten as -4x-7x

(remember, the two numbers should multiply to equal 28, which is our constant.)

$x^{2} -4x-7x+28$

now we can factor out x from the first expression and -7 from the second

$x(x-4)-7(x-4)$

and lastly you factor out x-4,

which would give you

(x-4)(x-7)

Make sure to check your work and make sure it multiplies to $x^{2} -11x+28$

3: $9x^{2} -12x+4$

The first thing I notice when looking at this problem is that both 9 and 4 are perfect squares. Not only that, but they are the squares of 2 and 3, which are products of -12

So if you rewrite 9 as $3^{2}$ and 4 as $2^{2}$ , the equation becomes

$3^{2} x^{2} -12x+2^{2}$

now that $3^{2} x^{2}$ is ugly so it can be turned into $(3x)^{2}$

and -12x can be rewritten as $-2*3x*2$

so our equation now looks like $(3x)^2-2*3x*2+2^{2}$

There's a rule that says $a^{2} -2ab+b^{2} = (a-b)^{2}$

In our case, a=3x and b=2

so the final answer is

$(3x-2)^2$

5 0

2 years ago

Can someone help me whose good at geometry?

Pavel [41]

Actually I can help you in three of them as the number "3" is not confined between the arrays ND and NE

So:
It would be
angle END
or
angle DNE
or
angle N

6 0

3 years ago