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
DerKrebs [107]
2 years ago
8

Michael estimated his mass as 8 kilograms. Is his estimate reasonable. Justify your answer

Mathematics
1 answer:
saw5 [17]2 years ago
3 0
No, a person weight on average anywhere from 40-80+kg depending on sex and build
You might be interested in
Keenan has 35 CDs and 55 DVDs. What is the ratio of DVDs to CDs?
Sav [38]
The ration is 10/7

Divide 55 and 35 by 5 to reduce the fraction of 55/35 and you get 10/7
8 0
3 years ago
Read 2 more answers
9x+18+3x=1
Katen [24]
The error is in the second step they subtracted 3 from both sides but it was a 3x, which you can not do.
Correction.
9x+18+3x=1
12x+18=1
12x=-17
x=-17/12
3 0
2 years ago
Read 2 more answers
MATH HELP!!! 100PTS!!!
Lostsunrise [7]

Answer:

x =\dfrac{20 +\sqrt{454}}{18}, \quad \dfrac{20 -\sqrt{454}}{18}

Step-by-step explanation:

<u>Given functions</u>:

  p(x)=2x-4

  r(x)=\dfrac{6x-1}{9x+1}

Solve for p(x) = r(x):

\begin{aligned}p(x) & = r(x)\\\implies 2x-4 & = \dfrac{6x-1}{9x+1}\\(2x-4)(9x+1)&=6x-1\\18x^2+2x-36x-4&=6x-1\\18x^2-40x-3&=0\end{aligned}

As the found quadratic equation cannot be factored, use the Quadratic Formula to solve for x:

<u>Quadratic Formula</u>

x=\dfrac{-b \pm \sqrt{b^2-4ac} }{2a}\quad\textsf{when }\:ax^2+bx+c=0

Therefore:

a=18, \quad b=-40, \quad c=-3

Substitute the values of a, b and c into the <u>quadratic formula</u> and solve for x:

\begin{aligned}\implies x & =\dfrac{-(-40) \pm \sqrt{(-40)^2-4(18)(-3)} }{2(18)}\\\\& =\dfrac{40 \pm \sqrt{1816}}{36}\\\\& =\dfrac{40 \pm \sqrt{4 \cdot 454}}{36}\\\\& =\dfrac{40 \pm \sqrt{4}\sqrt{454}}{36}\\\\& =\dfrac{40 \pm2\sqrt{454}}{36}\\\\& =\dfrac{20 \pm\sqrt{454}}{18}\end{aligned}

Therefore, the solutions are:

x =\dfrac{20 +\sqrt{454}}{18}, \quad \dfrac{20 -\sqrt{454}}{18}

Learn more about quadratic equations here:

brainly.com/question/27750885

brainly.com/question/27739892

6 0
1 year ago
Find the volume of a right circular cone that has a height of 9 m and a base with a
AlladinOne [14]

Answer:

that is the solution to the question

3 0
3 years ago
In inverse of squaring is _________.
ch4aika [34]

Answer:

Square root

hope it helps you

8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the area of the following figure.
    7·2 answers
  • Which picture do u like the most and is this person hot? FREE POINTS!!!
    9·2 answers
  • ken paid $12 for two magazines. The cost of each magazine was a multiple of $3. What are the possible prices of the magazines?
    6·2 answers
  • Vitaly cracks open a piggy bank and finds $4.05 (405 cents), all in nickels and dimes. There are 9 more dimes than nickels. How
    15·1 answer
  • What is sin B? 3/5, 3/4, 4/3, 4/5?
    11·1 answer
  • Find the volume of the prism
    5·1 answer
  • 5x+3y=15 <br> solve for y
    7·1 answer
  • 46 divided by 4 <br> Please help
    9·1 answer
  • You can use the formula is A = b.h to find the area of every triangle.
    8·2 answers
  • Write and solve a system of linear​ equations: The larger of two numbers is 18 more than 5 times
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!