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
nikklg [1K]
4 years ago
13

IF YOU ANSWER THIS CORRECTLY, YOU WILL GET 80 POINTS!!!!!!!!!!! IF YOU ONLY COMMENT FOR THE POINTS THEN I WILL REPORT YOU AND YO

U WON'T GET THE POINTS!!!!!!!!!!!!!!!!!!!
Simplify the product using the rules for exponents: 193 × 194

A. 19 × 7
B. 1912
C. 19−1
D. 197
Mathematics
2 answers:
Juli2301 [7.4K]4 years ago
4 0
If the problem is 19^3 * 19^4
The multiplication rule for exponents is:
If the bases are the same, keep the base and add the powers.
19 ^ (3 + 4) = 19^7
 LETTER D should be written as 19^7 instead of 197
ANEK [815]4 years ago
4 0

Answer:

193 × 194

( 200 - 7) ( 200 - 6)

(200)² + 200 ( -7 -6) + ( -7 × -6)

40000 - 2600 + 42

37442

You might be interested in
A breeder reactor converts uranium-238 into an isotope of plutonium-239 at a rate proportional to the amount of uranium-238 pres
topjm [15]

Let U(t) denote the amount of uranium-238 in the reactor at time t. As conversion to plutonium-239 occurs, the amount of uranium will decrease, so the conversion rate is negative. Because the rate is proportional to the current amount of uranium, we have

\dfrac{\mathrm dU}{\mathrm dt}=-kU

where k>0 is constant. Separating variables and integrating both sides gives

\dfrac{\mathrm dU}U=-k\,\mathrm dt\implies\ln|U|=-kt+C\implies U=Ce^{-kt}

Suppose we start some amount u. This means that at time t=0 we have U(0)=u, so that

u=Ce^{-0k}\implies C=u\implies U=ue^{-kt}

We're given that after 10 years, 99.97% of the original amount of uranium remains. This means (if t is taken to be in years) for some starting amount u,

0.9997u=ue^{-10k}\implies k=-\dfrac{\ln(0.9997)}{10}

The half-life is the time t_{1/2} it takes for the starting amount u to decay to half, 0.5u:

0.5u=ue^{-kt_{1/2}}\implies t_{1/2}=-\dfrac{\ln(0.5)}k=\dfrac{10\ln2}{\ln(0.9997)}

or about 23,101 years. Notice that it doesn't matter what the actual starting amount is, the half-life is independent of that.

7 0
3 years ago
Please help me i beg of u plzz
Leviafan [203]

Answer:

2) B. as x increases, y increases as well

3) C. Number of books owned and number of visits to the doctor's office in one year

4) D. The 90 minute lesson that cost $40

5) A. There is a strong correlation

Step-by-step explanation:

2) i am not 100%positive since there is no way to check my answer, but i believe it is "B. As x increases, y increases as well" because it highlights the correlation between x and y.

(i already explained 3, 4, and 5 on another one :D)

4 0
3 years ago
Stimulus check summary please help me please
OleMash [197]

Answer: I think it’s great but you should make a stronger opinion and always have back up evidence

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
If MrBeast bought 69 Lamborghini's and bought 420 Rolex watches how many items in all would he have bought altogether?
timama [110]
It’ll be 489 altogether

have a great day :)
6 0
3 years ago
Read 2 more answers
What are the factors of x^2-64
mel-nik [20]
Difference Of Two Squares
<span>a^2 - b^2 = a^2 - b^2 
</span><span>so
x^2-64
=x^2 - 8^2
= (x + 8)(x - 8)</span>
8 0
3 years ago
Other questions:
  • Simplify:<br> (x2 + 5x + 6)/ (x + 3)
    10·1 answer
  • WILL MARK BRAINLIEST AND 20 POINTS Determine algebraically whether each of the following functions is even, odd, or neither. f(x
    6·1 answer
  • Each letter in the word "mathematics" is written on a slip of paper and placed in a box. Lynette chooses a letter from the box,
    6·2 answers
  • A water tower is in a shape of a cone. the tower is 30 ft. tall and 20 ft in diameter. what is the approximate maximum volume of
    15·2 answers
  • What does it mean to solve an equation
    14·2 answers
  • Which of the following is a property of all rhombi? O A. They have 4 right angles. B. The diagonals are congruent. O C. All 4 si
    13·2 answers
  • Which equation is an equation of a circle with a radius of 4 and its center is at (3,-2)?
    10·1 answer
  • 2x+y=5 , 3x+2y=8 solve using cross multiplication​
    8·1 answer
  • Please help and explain how you got it!!
    10·2 answers
  • Which of the following are more precise than a weight of 1,000 pounds? (Check all that apply)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!