2301945
2301945
18-03-2021
Mathematics
contestada
how to solve 2x²-8x-90=0
Respuesta :
stefaniyax04
stefaniyax04
18-03-2021
а=2
b=-8
c=-90
D=b^2-4ac
D=64+720
D=784=28^2
X1,2=(-b-+D):2a
Х1,2=(8+-28):4
Х1=-5
Х2=9
Answer Link
VER TODAS LAS RESPUESTAS ( 86+ )
Otras preguntas
Can someone help me?
Ari stocks shelves at a grocery store.He puts 35 cans of juice in each display case.The case has 4 shelves with an equal number of cans,and one shelf with only
Emma went to a salon to get her hair cut. The price of the haircut is $65. She wants to leave a 20% tip. What is the total amount she should pay?
which of these numbers is composite?7,9,23,47,67
What is the definition of Gothic Detail
you get to pick 8 of your 12 favorite songs to put on a cd . how many ways 8 songs be arranged from a choice of 12 songs
Put these different types of radiation in order from MOST to LEAST penetrating.
Use the diagram to find the measurement of each of the angles
True or false 1. 12 is 20% of 60 2. 24 is 50% of 48 3. 14 is 75% of 20 4. 9 is 30% of 30
without graphing, determine whether the function represents exponential growth or exponential decay. y=2(0.065)
