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
sattari [20]
3 years ago
6

What is the answer for 2x+20=3x-5

Mathematics
2 answers:
kotegsom [21]3 years ago
6 0
Combine like terms.
2x+20=3x-5
20=3x-5-2x
20+5=3x-2x
25=x
wlad13 [49]3 years ago
4 0
2x-3x=-5-20
-x=-25
X=25
You might be interested in
A month of the year is chosen at random. What is the probability that the month starts with the letter J or the letter M?
Elenna [48]

Answer:

5 Months start with"J" or "M"

January March May June July

So the probability of a randomly selected month beginning with J or M is

5 / 12

Step-by-step explanation:

4 0
3 years ago
Find the difference. You may find using a number line to be helpful. Enter your answer as a simplified
Ghella [55]

Answer:1

Step-by-step explanation:

-2-(-3)

-2+3=1

7 0
3 years ago
Ask Your Teacher The circumference of a sphere was measured to be 90 cm with a possible error of 0.5 cm. (a) Use differentials t
SCORPION-xisa [38]

Answer:  

a)  28,662 cm²  max error

    0,0111     relative error

b) 102,692 cm³  max error

   0,004     relative error

   

Step-by-step explanation:

Length of cicumference is: 90 cm

L = 2*π*r

Applying differentiation on both sides f the equation

dL  =  2*π* dr    ⇒  dr = 0,5 / 2*π

dr =  1/4π

The equation for the volume of the sphere is  

V(s) =  4/3*π*r³     and for the surface area is

S(s) = 4*π*r²

Differentiating

a) dS(s)  =  4*2*π*r* dr    ⇒  where  2*π*r = L = 90

Then    

dS(s)  =  4*90 (1/4*π)

dS(s) = 28.662 cm²   ( Maximum error since dr = (1/4π) is maximum error

For relative error

DS´(s)  =  (90/π) / 4*π*r²

DS´(s)  = 90 / 4*π*(L/2*π)²      ⇒   DS(s)  = 2 /180

DS´(s) = 0,0111 cm²

b) V(s) = 4/3*π*r³

Differentiating we get:

DV(s) =  4*π*r² dr

Maximum error

DV(s) =  4*π*r² ( 1/  4*π*)   ⇒  DV(s) = (90)² / 8*π²

DV(s)  =  102,692 cm³   max error

Relative error

DV´(v) =  (90)² / 8*π²/ 4/3*π*r³

DV´(v) = 1/240

DV´(v) =  0,004

3 0
3 years ago
Read 2 more answers
I need help with question 6​
Brums [2.3K]

Answer:ur answer is 96

Step-by-step explanation:

6 0
3 years ago
Measuring the height of a tree is usually more difficult than measuring the diameter of the tree. Therefore, many researchers us
LenKa [72]

Answer:

(B) (0.396, 1.712)

Step-by-step explanation:

From the information given;

Confidence Interval = 0.95

Significance Level = 1 - 0.95 = 0.05

The confidence interval for regression coefficient beta (whereby in this case it is the coefficient of the diameter) is expressed by:

= ( Beta ^- \ t_{n-2}, \alpha/2 ( S.E \ of \ \^ \ \ ), Beta^+ \ t_{n-2}, \alpha/2 ( S.E \ of \ \^ \ \ ))

From the regression coefficient, the estimated value of beta^  = 1.054

= (1.054 - t_{29,0.025} *(0.322), 1.054 + t_{29,0.025}*(0.322))

t_{229,0.025} = 2.0452\\\\ = \mathbf{(0.396, 1.712)}

8 0
2 years ago
Other questions:
  • A mustard seed has a mass of about 0.002. A glass jair contains about 4.3602 x 10 ^ 4 seeds. Which is a reasonable estimate of t
    8·2 answers
  • "Sonia had band practice 2 _1/3 hours on Saturday and 1_3/4 hours on Monday. How many total
    13·1 answer
  • I need help pleas thank you
    7·1 answer
  • If u can help me and show work plzzz!!!
    5·1 answer
  • PLEASE I NEED HELP!!!!!!!!!!?
    13·1 answer
  • What is (f−g)(x)?
    9·1 answer
  • I will give brainliest for whoever answers first
    15·1 answer
  • (10 POINTS) answer ASAP if you can
    12·2 answers
  • Use the drawing tool(s) to form the correct answer on the provided graph. Plot the axis of symmetry and the vertex for this func
    13·1 answer
  • Assume the radius of a circle is 5.7 inches. This measurement was performed with a
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!