1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lelu [443]
3 years ago
12

2 questions in one! please help! will give brainiest if work is shown!!

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
8 0
The first answer is 0.38(x^2)-2.45x+5.1. first, on a graphing calculator, you enter the data in the chart into stat edit. then you turn on stat plot 1 and press graph. press stat calc quadreg to find the equation. then, substitute 9 in for x to find that there will be 13.83 thousand bacteria after 9 hours

You might be interested in
Find the volume of this square<br> based pyramid.<br> 5 ft<br> 6 ft<br> [ ? jft
artcher [175]

Answer:

v=50

Step-by-step explanation:

use the formula V=A(h/3), where V is the volume and A is the area of the base. a=5 h=6 5×6=30 5×3=15 30+15=45 45 rounded to neared whole number which is 50

7 0
3 years ago
A round swimming pool has a radius of 12 feet. What is its circumference?
Varvara68 [4.7K]

c=2πr

=2*3.14*12

=75.36 m

it's circumference is 75.36 m

3 0
2 years ago
Read 2 more answers
Make q the subject of the formula
miss Akunina [59]

Answer:

q = 2p - 1/3

Step-by-step explanation:

2q + 2p = 1+5q

2q = 1+5q-2p

-3q=1-2p

-q = 1-2p/3

q= 2p-1/3

8 0
2 years ago
Read 2 more answers
A bicyclist traveled with a speed of 12 km/h from a camping ground to a station, located 60 km away. Write a formula expressing
yawa3891 [41]

1. The formula expressing the dependence of the variable s on t is: s = 60 - 12t

2. the distance travelled at time t = 3.5 h is 18 Km

<h3>What is speed? </h3>

Speed is the distance travelled per unit. Mathematically, it can be expressed as:

Speed = distance / time

<h3>1. How to determine the formula expressing the dependence of the variable s on t</h3>

From the question given, bicyclist traveled with a speed of 12 km/h from a camping ground to a station, located 60 km.

Thus, we shall determine the distance travel in time t as follow

  • Speed = 12 Km/h
  • Time = t
  • Distance in time t = ?

Speed = distance / time

12 = distance / t

Cross multiply

Distance = 12 × t

Distance in time t = 12t

But the total distance travelled is 60 Km. Thus, the remaining distance (s) from the bicyclist to the station at time (t) will be given as:

s = 60 - 12t

Thus, the formula expressing the dependence of the variable s on t is: s = 60 - 12t

<h3>2. How to determine the distance at t = 3.5 hours</h3>

The distance at t = 3.5 hours can be obtained as illustrated below:

  • Time (t) = 3.5 hours
  • Distance (s) = ?

s = 60 - 12t

s = 60 - (12 × 3.5)

s = 60 - 42

s = 18 Km

Thus, the distance travelled at t = 3.5 hours is 18 km

Learn more about speed:

brainly.com/question/680492

#SPJ1

6 0
2 years ago
Simplify (5 x + 1) - (-10 x + 6)
tekilochka [14]

Answer:15x+7

Step-by-step explanation:

First you would see that the -(-10x+6) would turn into 10x+6 meaning that the whole equation would turn into 5x+1+10x+6. Then add the x numbers together and the whole numbers separate. So now your answer should be 15x+7

8 0
3 years ago
Read 2 more answers
Other questions:
  • Can you solve this question plz
    8·2 answers
  • The difference of -2x to the second power plus wx minus 4 and x to the second power plus 5x plush 6 equals negative 3x to the se
    14·1 answer
  • 10x - y = 2<br> 5x + 3y = 5 --
    14·1 answer
  • 30/19 as a mixed number
    10·2 answers
  • Can somebody explain to me how to solve this problem? I'm confused
    14·1 answer
  • A survey was taken among a group of people. The probability that a person chosen likes Italian food is 0.75, the probability tha
    7·1 answer
  • A bird is sitting on top of a ten foot pole looking at a piece of bread that is 30 feet from the base of the pole. What is the a
    10·1 answer
  • Given that angle ABC is equal to 10 X +40 and angle DBC is equal to 3X +10 what is the measure of angle ABD
    10·2 answers
  • What is the value of x?<br> Enter your answer, as a decimal, in the box.<br> ft
    9·1 answer
  • X(x-5) (x+5) - (x+2) (x^2 - 2x +4) = 17
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!