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
AnnZ [28]
3 years ago
8

7 inches more than normal

Mathematics
2 answers:
Zina [86]3 years ago
4 0
Any context to this question?
Naily [24]3 years ago
3 0
That’s a big thing u know
You might be interested in
Suppose after 2500 years an initial amount of 1000 grams of a radioactive substance has decayed to 75 grams. What is the half-li
krok68 [10]

Answer:

The correct answer is:

Between 600 and 700 years (B)

Step-by-step explanation:

At a constant decay rate, the half-life of a radioactive substance is the time taken for the substance to decay to half of its original mass. The formula for radioactive exponential decay is given by:

A(t) = A_0 e^{(kt)}\\where:\\A(t) = Amount\ left\ at\ time\ (t) = 75\ grams\\A_0 = initial\ amount = 1000\ grams\\k = decay\ constant\\t = time\ of\ decay = 2500\ years

First, let us calculate the decay constant (k)

75 = 1000 e^{(k2500)}\\dividing\ both\ sides\ by\ 1000\\0.075 = e^{(2500k)}\\taking\ natural\ logarithm\ of\ both\ sides\\In 0.075 = In (e^{2500k})\\In 0.075 = 2500k\\k = \frac{In0.075}{2500}\\ k = \frac{-2.5903}{2500} \\k = - 0.001036

Next, let us calculate the half-life as follows:

\frac{1}{2} A_0 = A_0 e^{(-0.001036t)}\\Dividing\ both\ sides\ by\ A_0\\ \frac{1}{2} = e^{-0.001036t}\\taking\ natural\ logarithm\ of\ both\ sides\\In(0.5) = In (e^{-0.001036t})\\-0.6931 = -0.001036t\\t = \frac{-0.6931}{-0.001036} \\t = 669.02 years\\\therefore t\frac{1}{2}  \approx 669\ years

Therefore the half-life is between 600 and 700 years

5 0
3 years ago
CAN SOMEONE PLS HELP ME I WILL MAKE BRAINLIEST PLSSS
love history [14]

Answer:

a) 300 miles

b) 2pm}

That is all I can help you :(

Step-by-step explanation:

8am + 6hrs =14hrs =2pm

6 0
3 years ago
The garden club earned $15 per hour by weeding neighborhood gardens for t hours. A generous donor has agreed to double their ear
bazaltina [42]

Answer: 35

Step-by-step explanation:15 + 15

7 0
3 years ago
Read 2 more answers
100 points!!! Show your work on paper
lyudmila [28]

Answer:

  • 10 cm, 15 cm

Step-by-step explanation:

Set ratios and solve for x

<u>Corresponding sides are AC with A'C' and CB with C'B'</u>

  • AC/A'C' = CB/C'B'
  • (x - 1)/2 = (x + 4)/3
  • 3(x - 1) = 2(x + 4)
  • 3x - 3 = 2x + 8
  • 3x - 2x = 8 + 3
  • x = 11

<u>Find the values of AC and CB:</u>

  • AC = x - 1 = 11 - 1 = 10 cm
  • CB = x + 4 = 11 + 4 = 15 cm
5 0
2 years ago
Read 2 more answers
Using the matrices below determine if the product of AB is defined. If defined, state the dimension (Picture provided)
il63 [147K]

Answer:

option C. Defined, 3 x 3

Step-by-step explanation:

The order of matrix A is 3 x 2 i.e 3 rows and 2 columns

The order of matrix B is 2 x 3 i.e. 2 rows and 3 columns

Two matrices can be multiplied if and only if the number of columns of 1st matrix is equal to the number of rows of 2nd matrix. Since the number of columns in matrix A is equal to the number of rows in matrix B, the product AB is defined.

The product AB will have number of rows equal to the rows of 1st matrix i.e. matrix A and number of columns equal to the columns of 2nd matrix i.e. matrix B.

So the order of AB will be 3 x 3 .

Therefore, the correct answer is option C. Defined 3 x 3

4 0
3 years ago
Other questions:
  • Find the x-intercept for 11x - 33y = 99
    9·1 answer
  • Molly works at an electronics store. Her last customer purchased a DVD player for $66.54 and five DVDs for $51.33, including tax
    15·1 answer
  • If product is addition and factor is to multiply then what is division
    8·1 answer
  • Graph the line with slope -3 passing through the point (5,1) .
    11·1 answer
  • You know that 5^2=25. How can you use this fact to evaluate 5^4
    7·1 answer
  • The Greens want to put an addition on their house 18 months from now. They will need to save $10,620 in order to achieve this go
    9·1 answer
  • A spinner with sections Red, Blue, Yellow, and Green is spun 3 times. What is the
    15·1 answer
  • It takes 3 3/4 spoons of chocolate syrup to make 2 1/2 gallons of chocolate milk. How many spoons of syrup would it take to make
    10·1 answer
  • What fraction is closer to 1?
    6·2 answers
  • Three sticks of butter are needed for every 24 cookies.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!