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
Sedbober [7]
3 years ago
15

Help please.........

Mathematics
1 answer:
Semmy [17]3 years ago
6 0
The answer is A. Hope this helps.
You might be interested in
The Richter scale is used to measure the magnitude of an earthquake. The magnitude, R, is given by the earthquake. Determine the
8090 [49]
A)R=0.65log(0.39E)+1.45

7.5=0.65log(0.39E)+1.45

B)6.05=0.65log(0.39E)   Subtracted 1.45 from~ both~ sides~ of~ equation.

9.31=log(0.39E)          Divided each side by 0.65.  



C) 9.31=log(0.39E)

10^(9.31)=0.39E

E=5.24*10^9 kilowatt hours
5 0
3 years ago
Find the value of $x$ for the right triangle. A right triangle with base labeled x and hypotenuse labeled 12 units. Angle betwee
slamgirl [31]

Answer:

6 feets

Step-by-step explanation:

The triangle described in the question has been sketched in the picture attached below :

From the triangle, we could solve for X, which is the base of the triangle using trigonometry :

Sinθ = opposite / hypotenus

Sin 30° = x / 12

0.5 = x / 12

x = 12 * 0.5

x = 6 feets

Hence base, x = 6 feets

8 0
3 years ago
The sum of the exterior angles of an octagon is 360 degrees. True False
NeX [460]
The answer is true duh
4 0
3 years ago
Read 2 more answers
Why is x=5 not in the domain of the function
Anestetic [448]
BC it's a rate of change
5 0
3 years ago
What is 2x+y=4 and 2x+y=-1
butalik [34]

Answer:

{x,y} = {5,6}

Step-by-step explanation:

// Solve equation [1] for the variable  x

 [1]    x = y - 1

// Plug this in for variable  x  in equation [2]

  [2]    2•(y -1) - y = 4

  [2]    y = 6

// Solve equation [2] for the variable  y

  [2]    y = 6

// By now we know this much :

   x = y-1

   y = 6

// Use the  y  value to solve for  x

   x = (6)-1 = 5

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solution to –4(8 – 3x) ≥ 6x – 8?<br><br> x ≥ –4/3<br> x ≤ –4/3<br> x ≥ 4<br> x ≤ 4
    14·1 answer
  • Which has the greater rate of change (slope)
    5·2 answers
  • S (-5, -2) &amp; T (-3, 4)
    8·1 answer
  • A scientist investigates a new substance and finds that at 35° C, 146.2 grams will dissolve in 200.0 grams of water. Which simil
    6·1 answer
  • Can someone give me the answer and how you work this? -5 - (-10) = ?
    15·1 answer
  • Please help I am begging you extra points and BRAINLIEST!!!!!!!
    14·1 answer
  • A bank offers an investment account with an annual interest rate of 1.27% compounded quarterly. Heather invests $3400 into the a
    13·1 answer
  • A box in a supply room contains 21 compact fluorescent lightbulbs, of which 7 are rated 13-watt, 8 are rated 18-watt, and 6 are
    5·1 answer
  • Use the quadratic formula to solve the equation <br> 25x^2-30x+25=0
    8·1 answer
  • If log 0.0625 base 8 = x
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!