jayrobinson258
jayrobinson258
21-08-2017
Mathematics
contestada
I need help please help
Respuesta :
mathmate
mathmate
21-08-2017
s^2-10s=23
add 25 to both sides to make a perfect square on the left
s^2-10s+25=23+25=48
The left hand side is a perfect square, so factor
(s-5)^2=48
s-5=sqrt(48)=+/- 4sqrt(3)
s=5 +/- 4sqrt(3)
or
s={5-4sqrt(3), 5+4sqrt(3)}
Answer Link
VER TODAS LAS RESPUESTAS ( 32+ )
Otras preguntas
Jack and Jane leave their home traveling in opposite directions on a straight road. Jack drives 20 mph faster than Jane. After 4 hours, they are 250 miles apart
Donna arranges 32 tiles in equal rows, as shown below. Which expression represents the number of tiles in each row? 32 x 4 32 + 4 32 : 4 32 - 4
Need help with 6,9,10
3. Rosalía no es aburrida. Es muy______ (10 Points) perezosa corta interesante amarilla
What word describes something that was set on fire? Browned: turned brown through a cooking process Cooked: prepared for consumption Singed: burned superfici
eres alta_____ jugar al basquetbol?
what is popular will
In order for the pH level of an acidic substance to be less than 2.25, the molar concentration of hydrogen ions, x, in the substance must satisfy the inequality
(3 to the power of 2) + (5 − 2) ⋅ 4 − 6 over 3
The measures of two angles are (4x + 39) and (16x - 12). What is the value of x that will make the two angles congruent? А 4.25 B 2.55 с 1.35 D 2.25
