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Anastasy [175]
3 years ago
15

Find the discriminant of this equation x2 - 5x = 4

Mathematics
2 answers:
nexus9112 [7]3 years ago
8 0
The answer is D) 41.
Lunna [17]3 years ago
5 0
Its 41 tell me if u need step by step

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What is the unit form of 7÷4
Natasha2012 [34]

Answer:

1.75

Step-by-step explanation:

7 ÷ 4 = 1.75

HOPE THIS HELPS

6 0
3 years ago
Sorry but it's a rly bad picture I rly need this I'm so confused
son4ous [18]
2x+1=9
Your going to always try to leave the x variable alone.
2x+1=9
    -1  -1
2x=8
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x=4
5 0
2 years ago
You are given the steps for constructing the bisector of an angle using a compass and a straightedge. Arrange the steps in the c
postnew [5]
Mark as brainiest

1) place the compass needle on the external point r.2) make the compass width greater than the distance from r to the given line.
3) draw an arc cutting the given line at two points.
4) mark and label the points of intersection p and q.
5) without changing the compass width, move the compass needle to q and draw another arc below the line crossing the previous arc.
6) move the compass needle to p and make an arc below the line.
7) mark and label the point of intersection s.
8) draw a line from the external point r to the point where the arcs intersect, s.
9) line rs is perpendicular to line pq and passes through the external point r.
6 0
3 years ago
Please help, this will just take a minute of your time ❤︎ (literally)<br>(Discriminant Worksheet)
igomit [66]

Answer:

\large\boxed{x=-\dfrac{7-\sqrt{97}}{4}\ \vee\ x=-\dfrac{7+\sqrt{97}}{4}}

Step-by-step explanation:

ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta0,\ \text{then an equation has two solutions:}\ x=\dfrac{-b\pm\sqrt\Delta}{2a}\\\\\text{We have:}\\\\-2x^2-7x+10=4\qquad\text{subtract 4 from both sides}\\\\-2x^2-7x+6=0

a=-2,\ b=-7,\ c=6\\\\\Delta=(-7)^2-4(-2)(6)=49+48=97>0\\\\\sqrt\Delta=\sqrt{97}\\\\x=\dfrac{-(-7)\pm\sqrt{97}}{2(-2)}=\dfrac{7\pm\sqrt{97}}{-4}=-\dfrac{7\pm\sqrt{97}}{4}

6 0
3 years ago
a baker has 10 cups of sugar to make cookies each batch calls for 1 1/3 cups sugar how many batches can he make
Nata [24]
4/3 x 7=9.3333
4/3 x 8=10.666
Can't go over 10, so you can only make 7 batches.
Hope I've helped!

6 0
3 years ago
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