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
Fiesta28 [93]
2 years ago
13

25e² + n 4= 20edon't know what to do so please help

Mathematics
1 answer:
never [62]2 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

This is a quadratic equation

Rearrange into standard form : ax² + bx + c = 0 : a ≠ 0

subtract 20e from both sides

25e² - 20e + 4 = 0 ← in standard form

This is a perfect square of the form

(a - b)² = a² - 2ab + b²

25e² = (5e)² ⇒ a = 5e and 4 = 2² ⇒ b = 2, and

- 2ab = - 2 × 5e × 2 = - 20e, hence

25e² - 20e + 4 = (5e - 2)²

⇒ (5e - 2)² = 0 ⇒ e = \frac{2}{5} with multiplicity 2



You might be interested in
carmela cut a cake into 12 equal-sized pieces. She ate 2/12 of the cake and her brother ate 3/12 of the cake.What fraction of th
Rzqust [24]
1/12 of the cake is left for carmela to eat
6 0
2 years ago
Read 2 more answers
What is the value of 5t – 5? A. 0 B. 20 C. 45 D. 50
poizon [28]
Factor 5 de 5t - 5
5(t - 1)

¡Espero que esto ayude! :)
6 0
2 years ago
Read 2 more answers
Someone plsss help me!!!!!
MariettaO [177]

Answer:

x = 2

Step-by-step explanation:

the formula for this problem is

Area = 1/2 base x Height

step 1) plug in what we know

5 = 1/2 base(5)

step 2) switch sides

1/2 base x 5 = 5

step 3) divide both sides by 1/2 x 5

\frac{1/2 base( 5)}{1/2(5)} = \frac{5}{1/2(5)}

step 4) Simplify

\frac{1/2 base (5)}{1/2 (5)}: b

step 5) Simplify

\frac{5}{1/2(5)}: 2

step 6) now you have gotten the answer<u> x = 2</u>

6 0
3 years ago
Can someone help me with this? Pls ty!
Sedbober [7]

Answer:

ACD = 120°

Step-by-step explanation:

Exterior angle theorem.

3x = (x + 12) + (x + 28)

3x = 2x + 40

 x = 40

ACD = 3x = 3(40) = 120°

8 0
2 years ago
!!!!!!Help Me Plz!!!!!!
vitfil [10]

Answer:

angle ABE = 55 degrees

Step-by-step explanation:

(3x-8) + (x+14) = 90

4x+6 = 90

4x = 84

x = 21

angle ABE = 3(21)-8 = 55

3 0
2 years ago
Other questions:
  • Find the area of a triangle with an 11-inch base and a 6-inch height.<br> A =
    6·1 answer
  • suppose the commute times for employees of a large company follow a normal distribution. if the mean time is 18 minutes and the
    6·2 answers
  • If a cube-shaped cell is 3 units tall by 3 units wide and 3 units long, what is the cell's surface-area-to volume ratio?
    11·1 answer
  • Can someone help me please
    15·2 answers
  • Find the length of the line segment with end points of 19 and -39
    13·2 answers
  • The length of a rectangle is 16m greater than the width. If the perimeter of a rectangle is 256m, what is the width of the recta
    9·1 answer
  • one morning sam cycles 5km in 20 mins and Dwight cycles 6km in 30mins Determain who cycles faster. Show your work
    6·1 answer
  • 2x(3x - 2) + (3x - 2)<br>let's writefollowing expression as product of their factor.​
    10·2 answers
  • I need help on thesis promblem please
    8·1 answer
  • 12 times 3/8 and simplified
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!