2x^2+7x-4=0
Δ=7^2-4*2*(-4)
Δ=49+32
Δ=81
x1=(-7+V81)/4=(-7+9)/4=2/4=1/2
x2=(-7-9)/4=-16/4=-4
the solutions: x1= 1/2 and x2= - 4
I remember doing that yesterday i could get it for tmwr
Answer:
12
Step-by-step explanation:
Multiply to get the number of girls they've given you.
3 x 6 = 18 girls.
2 x 6 = 12 boys.
Answer:
<u>Tabatha needs 25 feet of additional feet of pink ribbon to complete all the hair bows.</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Amount of pink ribbon Tabatha has = 3 1/3 yards
Amount of pink ribbon Tabatha needs to make all the hair bows = 35 feet
2. How many more feet of ribbon will Tabatha need to complete all the hair bows?
1 yard = 3 feet
3 1/3 yards = 10 feet
Additional feet of pink ribbon Tabatha needs = Amount of pink ribbon Tabatha needs to make all the hair bows - Amount of pink ribbon Tabatha has
Additional feet of pink ribbon Tabatha needs = 35 - 10
<u>Additional feet of pink ribbon Tabatha needs = 25 feet</u>
X= 8.29 or 8.3
you have to use the pythagorean theorem (a^2 +b^2=c^2) remember c is the hypotenuse and the hypotenuse is always across from your triangles right angle
