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
marshall27 [118]
3 years ago
10

Number 7 ;( I wish I was good at math

Mathematics
1 answer:
Setler79 [48]3 years ago
8 0
It’s ok I will try to figure out an answer
You might be interested in
On a cross country vacation, maria filled her 14 gallon gas tank eleven times.wich is the best estimate of how many gallons of g
poizon [28]
The actual answer is 154 but the closest estimate would be 150.
Just multiply the number of gallons filled her gas tank (14) and how many time she filled it (11). 
3 0
3 years ago
Read 2 more answers
Please help!!!!!!! im so confused lol
pav-90 [236]

Answer:

a : c = 7 : 10

Step-by-step explanation:

The two ratios (a : b and b : c) both have b in common, so to work out what a : c is, we can use b to 'bridge' the two ratios together.

However, in a : b, b is 4. But in b : c, b is 2. We need to make sure b is the same in both ratios before we can combine the ratios together. The easiest way to do this is to multiply b : c by 2 to get b : c = 4 : 10. Now b is 4 in both ratios.

So now, we can combine the two ratios together to get a : b : c = 7 : 4 : 10. Since we only want a : c though, we can just drop the b and get a : c = 7 : 10. No simplifying is necessary since the ratio is already in its simplest form.

Hope that helps! :)

5 0
2 years ago
Michael keeps track of how much time he uses his
Valentin [98]

Answer:

we have to see the table

Step-by-step explanation:

say that y is the calculated time

and x is the weeks

4 0
3 years ago
A body moves s metres in a time t seconds so that s = t3 – 3t2 + 8. Find:
Lady bird [3.3K]

Using derivatives, it is found that:

i) v(t) = 3t^2 - 6t

ii) 9 m/s.

iii) a(t) = 6t - 6

iv) 6 m/s².

v) 1 second.

<h3>What is the role of derivatives in the relation between acceleration, velocity and position?</h3>
  • The velocity is the derivative of the position.
  • The acceleration is the derivative of the velocity.

In this problem, the position is:

s(t) = t^3 - 3t^2 + 8

item i:

Velocity is the <u>derivative of the position</u>, hence:

v(t) = 3t^2 - 6t

Item ii:

v(3) = 3(3)^2 - 6(3) = 27 - 18 = 9

The speed is of 9 m/s.

Item iii:

Derivative of the velocity, hence:

a(t) = 6t - 6

Item iv:

a(2) = 6(2) - 6 = 6

The acceleration is of 6 m/s².

Item v:

t for which a(t) = 0, hence:

6t - 6 = 0

6t = 6

t = \frac{6}{6}

t = 1

Hence 1 second.

You can learn more about derivatives at brainly.com/question/14800626

7 0
2 years ago
Which is the closest to the curve of best fit for the data shown?
docker41 [41]

Answer:

data shows a positive or negative correlation, we can model the trend in the data using a line of best fit. Example 1 ... A curve of best fit is used to find an equation that best fits a quadratic function.

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • A student received a 75% on an exam. If there were 20 questions on the exam, which ratio would show the number of questions answ
    11·1 answer
  • Please help!!! I dont know how to do this!!please
    13·1 answer
  • Find 117% of $1,055.
    7·1 answer
  • A Parks and Recreation official surveyed 200 people at random who have used one of the city's parks. The survey revealed that 26
    10·1 answer
  • Enter an equation for the line
    10·2 answers
  • A restaurant check is $34.59. how much will a 15% tip be
    14·2 answers
  • Find the scale factor from def to abc
    8·1 answer
  • Find the sum of the interior angles, then solve for x. <br><br> Help!!
    12·2 answers
  • 3. Six Flags charges $16 for a refillable
    9·1 answer
  • Anybody know the answer !!
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!