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
Andrew [12]
4 years ago
12

20 POINTS!!!!!!!!!!!!!!!!! DESPERATE HELP IM GOING TO DIE IF I DONT GET HELP PLZZZZZZZZZZZZZZZZZZZZZZZ

Mathematics
2 answers:
Delvig [45]4 years ago
6 0
The answer is only on the board it’s the same exact way put it in the order as you see it
CaHeK987 [17]4 years ago
3 0

Answer:

no.

Step-by-step explanation:

You might be interested in
Jessica's is making $300 less than four times what she was making when she started working. Let s represent her
vichka [17]

Answer:

4s-300= Jessica's current salary

8 0
4 years ago
Can someone help me out?
White raven [17]

Answer: 15

Step-by-step explanation:

=(−5−4)2+(−4−8)2‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾√

d=(−5−4)2+(−4−8)2

=(−9)2+(−12)2‾‾‾‾‾‾‾‾‾‾‾‾‾‾√

d=(−9)2+(−12)2

=81+144‾‾‾‾‾‾‾‾‾√

d=81+144

=2‾√25

d=225

=15

7 0
3 years ago
The isotope samarium-151 decays into europium-151, with a half-life of around 96.6 years. A rock contains 5 grams of samarium-15
Olegator [25]
Part A:

The amount of substance left of a radioactive substance with a half life t_{ \frac{1}{2} } and amount of initial substance N_0 is given by

N(t)=N_0\left( \frac{1}{2} \right)^{ \frac{t}{t_{ \frac{1}{2} }} }

Given that th<span>e isotope samarium-151 has a half-life of around 96.6 years and the rock contains 5 grams of samarium-151 when it reaches its closure temperature, and it contains 0.625 grams when it is discovered.

</span><span>The time since the rock reached its closure temperature is obtained as follows:

0.625=5\left( \frac{1}{2} \right)^{ \frac{t}{96.6} } \\  \\ \Rightarrow\left( \frac{1}{2} \right)^{ \frac{t}{96.6} }= \frac{0.625}{5} =0.125 \\  \\ \Rightarrow\frac{t}{96.6}\log{ \frac{1}{2} }=\log0.125 \\  \\ \Rightarrow\frac{t}{96.6}= \frac{\log0.125}{\log{ \frac{1}{2} }} =3 \\  \\ \Rightarrow t=3(96.6)=289.8

Therefore, </span>t<span>he time since the rock reached its closure temperature is 289.8 years.



Part B:

Given that the </span><span>rock contains 5 grams of samarium-151 when it reaches its closure temperature, and it contains 0.625 grams when it is discovered. The number of grams of europium-151 when the rock was discovered is 5 - 0.625 = 4.375</span>
7 0
4 years ago
What appears to be the domain of the part of the exponential function graphed on the grid
Aleksandr [31]

Answer:

domain/4^6x7graph/7^x+6

Step-by-step explanation:

7 0
4 years ago
Calculate the average rate of change of the given function f over the intervals [a, a + h] where h = 1, 0.1, 0.01, 0.001, and 0.
Delicious77 [7]

Step-by-step explanation:

average rate of change of function is given by :

f= (f(a+h)-f(a))/h

where

f(x)=3x

and a= 7

so inserting values is formula for h=1

f=(f(7+1)-f(7))/1

f= f(8)-f(7)= 3(8)-3(7)=24-21=3

now for h= 0.1

f=(f(7+0.1)-f(7))/0.1=(f(7.1)-f(7))/0.1=(3(7.1)-3(7))/0.1

f=3

similarly average rate of change of given function is same for all given step sizes.

6 0
3 years ago
Other questions:
  • Rewrite this in its simplest form (please, doing an algebra 2 test)
    13·1 answer
  • F you earn $8 per hour after taxes are taken out of your paycheck and your insurance is $200 a month, how many hours will you ha
    9·1 answer
  • Let f(x) = 2x2 − 9x and g(x) = -5x2 + 4x. Find f(x) − g(x).
    9·1 answer
  • What is the domain of the function y=3 in x graphed below?
    11·2 answers
  • A town predicts that its population will double in e ^ In 10/ 2 In e years.
    7·2 answers
  • Lana has a bowl of marbles the bowl contains 5 green marbles,3 red marbles and 2 blue marbles from the bowl one at a time. What
    11·1 answer
  • 2/25 of the current delivered to an induction motor is wasted as reactive current. Express this fraction in decimal form.
    6·2 answers
  • Only 8 and 9 help me
    11·1 answer
  • If you need to use 4/5 of a cup of strawberries for a single pie . How many cups would be needed for 2 pies.
    6·1 answer
  • A $129.50<br> stereo is<br> discounted 40%.<br> What is the<br> sale price?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!