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3 years ago

Need help on answering number 13.

Mathematics

2 answers:

Genrish500 [490]3 years ago

6 0

You can find the value of y when you substitute the x value into the equation.

Since x = 3, the equation becomes:
y = 3 + 5

The answer to question 13 is y = 8

Levart [38]3 years ago

5 0

Since x is 3, three plus five is equal to 8.
The answer is y = 8.

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Which of the following is a polynomial function? Select all correct answers. Select all that apply: f(x)=4⋅11x f(x)=3⋅18x f(x)=1

kaheart [24]

Answer:

All of them are polynomial functions

Step-by-step explanation:

Remember that a polynomial function of x is a function whose value f(x) is always equal to $f(x)=a_0+a_1x+a_2x^2+\cdots a_nx^n$ for a fixed n≥0 (the degree of f) and fixed coefficients $a_i\in\mathbb{R}$

For example, $f(x)=x^2+3x$ is a polynomial function, but $g(x)=2^x+x$ is not because $2^n$ is not a nonnegative power of x. Another example of a non-polynomial function is $g(x)=x^{-1}=\frac{1}{x}$ .

f(x)=4⋅11x is polynomial with degree 1 and $a_0=0,a_1=4\cdot 11$ . For the same reasons, f(x)=3⋅18x and f(x)=10⋅17x are polynomial functions.

f(x)=−4x³−4x²+5x+1 is a polynomial function of degree 3 with $a_0=1,a_1=5, a_2=a_3=-4$ . and f(x)=−2x−1 is a polynomial function of degree 1 and coefficients $a_0=-1,a_1=-2$ .

4 0

4 years ago

How do you write 150,000 in scientific notation?

notka56 [123]

Answer:

1.5*10^5

Step-by-step explanation:

So here is what I did, I took the first 2 numbers, then turned it into 1.5,

that leaves us with 4 0's but with the .5 which counts as another one. Now I have 5, which goes as the exponent of 10.

3 0

3 years ago

34% of students from a school survey said they worked part-time. If 272 students said they worked part-time, about how many stud

g100num [7]

Answer:

34% = 272 students

100% = 272/34%

= 800 students

Step-by-step explanation:

to check whether the answer is correct

= 34% × 800

= 272 students

5 0

3 years ago

Read 2 more answers

Select all the correct answers.

Alexus [3.1K]

Answer:

B.Do you have a full-time job?

Step-by-step explanation:

B because having a full time job is very important.

Hope that was helpful.Thank you!!!

7 0

4 years ago

a particular strain of bacteria doubles in population every 10 minutes. Assuming you start with a single bacterium in a petri di

ser-zykov [4K]

Answer:

C. 32,768

Step-by-step explanation:

Step 1

Convert the number of hours to minutes

2.5 hours to minutes = 2 hrs 30 minutes to minutes is calculated as

1 hour = 60 minutes

2 hours 30 minutes =

Cross multiply

(60 minutes × 2 hours) + 30 minutes = 150 minutes.

Step 2

We are told in the question that the bacteria population doubles every 10 minute interval

Find the number of intervals in 150 minutes

= 150 minutes / 10 minutes interval

= 15 intervals

Step 3

The number of bacteria present after 2.5 hours is calculated using the formula of

= Amount of bacterium × 2ⁿ

Where n = number of intervals = 15

Amount of bacterium = single bacterium = 1

Number of bacteria = 1 × 2¹⁵

= 32,768

Therefore, when you start with a single bacterium in a petri dish, the number of bacteria that will there be in 2.5 hours is 32,768

6 0

3 years ago