Hannah20172 Hannah20172

06-01-2020
Mathematics

contestada

what interval contains a positive solution to the equation 0.2x^2-0.8x=1.6

Respuesta :

MathPhys MathPhys

06-01-2020

Step-by-step explanation:

0.2x² − 0.8x = 1.6

Multiply both sides by 5.

x² − 4x = 8

Complete the square by adding 4 to both sides.

x² − 4x + 4 = 12

(x − 2)² = 12

x − 2 = ±√12

x = 2 ± √12

The positive solution is x = 2 + √12 ≈ 5.46.

Answer Link

Otras preguntas

what is the least common multiple of 8 10 and 12

of the 200 packages of bagels sold, 15 of them are sesame seed bagels. what percent of the bagel packages sold are sesame seed bagels.

why was the world outraged when Germany marched into Belgium?

how are the landforms of Europe both an advantage and disadvantage to life in Europe?

if the price of an item is $ 2.89 and sales tax is 8%, what is the total cost of the item including the sales tax?

Of 3/1=6/2 then 3-1/1=

Growing vegetables on a farm represents which level of economic activity

what is the prime factorization of 121?

Fill in the blanks with object pronouns. Examples - me, te, nos, lo, la, los, las, le, les, se

A real estate broker sold your house for $72,000. The broker's commission was 6% of the selling price. How much would you get for the house after the commissio