3 years ago

Use the discriminant to determine the number of solutions for the quadratic equation.

Mathematics

1 answer:

Leno4ka [110]3 years ago

7 0

Answer:

2 real solutions

Step-by-step explanation:

y = -x^2 + 3x + 5

First find the the discriminant:

using b² - 4(a)(b)

(3)²- 4(-1)(5)

=9+20

=29

since the discriminant is more than 0, there are 2 real solutions

You might be interested in

If the length of a rectangle is 5a^2 and the width is 7ab^2 what is the area of the rectangle?

DanielleElmas [232]

Answer:

I think u forgot to put a photo because I really don't understand

Step-by-step explanation:

not sure

8 0

3 years ago

Solve for x enter the solutions from the least to greatest x2+7=43 lesser x= Greater x=

Snowcat [4.5K]

Answer:

x = ±6

Step-by-step explanation:

Step 1: Write out equation

x² + 7 = 43

Step 2: Subtract 7 on both sides

x² = 36

Step 3: Square root both sides

√x² = √36

x = ±6

7 0

3 years ago

Emily is entering a bicycle race for charity. Her mother pledges $0.60 for every 0.5 mile she bikes. If Emily bikes 8 miles, how

ollegr [7]

$9.60
8miles/0.5miles= 16
$0.60 x 16 = $9.60

5 0

3 years ago

HURRY PLEASE I WILL GIVE BRAINLIEST AND LOTS OF POINTS

Mrac [35]

Answer:

$m = \dfrac{3}{4}$

Step-by-step explanation:

We would like to find the slope of the line of the given equation .

$\longrightarrow y =\dfrac{3}{4}x -1$

We know that slope intercept form of the line is given by ,

$\longrightarrow y = mx + c$

where ,

m is the slope
c is y intercept

Now we can compare the given equation with the slope intercept form to find the slope . You will see that 3/4 is present at the place of m .Therefore ,

$\longrightarrow \underline{\underline{m=\dfrac{3}{4}}}$

Hence option C is correct choice .

4 0

2 years ago

I’ve been trying to figure out this question on my homework and I’ve been confused for days now.

dsp73

Answer:

18m^12n^3

Hope this helps!!

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers