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
kow [346]
2 years ago
6

Whats 12 divided by 12 it was a big deal In my 5th grade also i have been warned

Mathematics
1 answer:
rewona [7]2 years ago
4 0
It’s 1 and I’m just type cuz it don’t lemme answer
You might be interested in
What is 1/3(2/5-2/3w) in expanded form
Ray Of Light [21]
Just distribute! its 2/15 - 9/25w

8 0
3 years ago
Simplify this answer <br><br> please help!
aliya0001 [1]

Answer:

(hope this helps can I pls have brainlist (crown) ☺️)

Step-by-step explanation:

7^8 x 7^3 x 7^4 / 7^9 7^5

= 7^(8+3+4) / 7^(9+5)

= 7^15 / 7^14

= 7^(15-14)

= 7.

When the bases of the numbers are the same when multiplying numbers with exponents, you can just add the exponents like so:

7^8 x 7^3 x 7^4= 7^15

Now, look at the rest of the simplified equation and do the same to the denominator:

 7^15 / 7^9 x 7^5 ⇒ 7^15/ 7^14

When the bases are the same in the fraction, you are allowed to subtract the exponents. This will lead you to the simplified answer  = 7^15-14 = 7^1  = 7

5 0
2 years ago
9. Determine how long it takes for 80% of the material to decay.
Vilka [71]

Using an exponential function, it is found that it takes 18.6 days for 80% of the material to decay.

The amount of a substance after t days is modeled by:

A(t) = A(0)e^{-kt}

In which:

  • k is the decay rate, as a decimal.
  • A(0) is the initial amount.

The half-life is of 8 days, hence A(8) = 0.5A(0), and this is used to find k.

A(t) = A(0)e^{-kt}

0.5A(0) = A(0)e^{-8k}

e^{-8k} = 0.5

\ln{e^{-8k}} = \ln{0.5}

-8k = \ln{0.5}

k = -\frac{\ln{0.5}}{8}

k = 0.08664339757

Hence:

A(t) = A(0)e^{-0.08664339757t}

The time it takes for 80% of the material to decay it t for which A(t) = 0.2A(0), hence:

0.2A(0) = A(0)e^{-0.08664339757t}

e^{-0.08664339757t} = 0.2

\ln{e^{-0.08664339757t}} = \ln{0.2}

-0.08664339757t = \ln{0.2}

t = -\frac{\ln{0.2}}{0.08664339757}

t = 18.6

It takes 18.6 days for 80% of the material to decay.

To learn more about exponential functions, you can take a look at brainly.com/question/24906920

5 0
3 years ago
A inversely as x, and y=23 when x=8, find when x=4
Feliz [49]

Answer:

  • y=1/x
  • y=k/x
  • k=yx
  • given y=23,x=8
  • k=23×8=184
  • when x=4
  • y=184/4=46ans

6 0
3 years ago
Quadrilateral DEFG has at least one pair of opposite sides congruent. What types of quadrilaterals meet this condition?​
zhuklara [117]

Answer:

Parallelogram, Rectangle, Square, Rhombus, Trapezoid. ... ANSWER Trapezoid: there is one pair of parallel sides

Step-by-step explanation:

there is one pair of parallel sides

6 0
2 years ago
Other questions:
  • 20 points if you can answer this expression and give me 2 equivalent expressions SHOW YOUR WORK PLEASE!!! 32(10j + 17 + 5j)
    7·1 answer
  • Find the value of x in each case, please help
    14·1 answer
  • What is 3.9 divided by 6
    15·2 answers
  • The Anderson family is on a road trip. They're looking at a map (shown below) trying to figure out where to go next. Their car i
    6·1 answer
  • Help me please!!!! I will mark Brainliest
    11·1 answer
  • What is the surface area of this pyramid?
    12·1 answer
  • Maria's book is longer than Brandon's. The difference in the two book lengths is 56
    7·1 answer
  • Help me please and thank you
    8·2 answers
  • I need help plssssss
    15·1 answer
  • Geometry help PLEASE!!!! 20 POINTS HELP!!’
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!