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
chubhunter [2.5K]
2 years ago
9

I need help with all of these questions, I would really appreciate it if you would help me, thank you! Also if you would like to

send the answers on Instagram my account name is habibamalikkk

Mathematics
1 answer:
kobusy [5.1K]2 years ago
6 0

Answer: 10. Answer is -3

Step-by-step explanation:

You might be interested in
A 41 gram sample of a substance that's used to detect explosives has a k-value of 0.1392. Find the substance's half life, in day
-BARSIC- [3]

Answer:

The substance half-life is of 4.98 days.

Step-by-step explanation:

Equation for an amount of a decaying substance:

The equation for the amount of a substance that decay exponentially has the following format:

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

In which k is the decay rate, as a decimal.

k-value of 0.1392.

This means that:

A(t) = A(0)e^{-0.1392t}

Find the substance's half life, in days.

This is t for which A(t) = 0.5A(0). So

A(t) = A(0)e^{-0.1392t}

0.5A(0) = A(0)e^{-0.1392t}

e^{-0.1392t} = 0.5

\ln{e^{-0.1392t}} = \ln{0.5}

-0.1392t = \ln{0.5}

t = -\frac{\ln{0.5}}{0.1392}

t = 4.98

The substance half-life is of 4.98 days.

5 0
2 years ago
Simplify x + 4 + 3x
Ostrovityanka [42]
X+4+3x =
4x+4 (you sum the like terms )
3 0
3 years ago
Read 2 more answers
What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x – 2)?
Pepsi [2]
X=4
Step 1: Simplify both sides of the equation.
1.5(x+4)-3=4.5(x-2)
(1.5)(x)+(1.5)(4)+ -3 =(4.5)(x)+(4.5)(-2)
(1.5x) + ( 6+-3) =4.5x - 9
(Combine like terms)
1.5x+3=4.5x-9

Step 2: Subtract 4.5x from both sides.
1.5x +3 -4.5x =4.5x=-9-4.5x-3x+3=-9

Step 3: Subtract 3 from both sides.
-3x+3-3=-9-3
-3x=12

Step 4: Divide both by -3
-3x/-3=-12/-3
X=4
6 0
3 years ago
(B^2)(B^4)<br> Answer choices<br> B^8<br> B^6<br> B^2<br> 2b^6
ruslelena [56]

Answer:

Step-by-step explanation:

(B^2)(B^4) = B^(2+4)= B^6

answer is B

6 0
3 years ago
George bought 7.5 cases of pancake mix for his diner. A case contains 12 1.3-pound boxes. How many pounds of pancake mix did Geo
lions [1.4K]
First step

12 x 1.3

Second step

15.6 x 7.5

The answer is 117 :)
6 0
3 years ago
Read 2 more answers
Other questions:
  • 192 rounded to the one thousands place
    13·1 answer
  • Solve the equation (linear equation)<br><br> <img src="https://tex.z-dn.net/?f=%28%5Cfrac%7B16%7D%7B9%7D%29%20%5E%7B2x%20%2B5%7D
    5·1 answer
  • How do you find rate
    6·1 answer
  • The annual amount A (in billions of dollars) Americans spent on meals and
    13·1 answer
  • You are graphing Rectangle ABCD in the coordinate plane. The following are three of the vertices of the rectangle: A (2,1), B (5
    11·1 answer
  • What is negative 3/4 minus 1/8
    15·1 answer
  • Geometric or arithmetic<br> 4,10,16,22
    13·1 answer
  • Which of the ordered pairs is<br> 4x – 1= 3y + 5
    11·1 answer
  • Find any points of discontinuity for y = 5x+6/x2+6x+9
    10·1 answer
  • Write an inequality for each sentence. Then solve the inequality.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!