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stira [4]
3 years ago
7

Determine the maximum number of zeros of the polynomial function -9x^2 + 2x + 2.a.3c.1b.2d.4 Please select the best answer from

the choices providedABCD
Mathematics
1 answer:
ioda3 years ago
8 0

Answer:

b

Step-by-step explanation:

f(x) = -9x² + 2x + 2

Discriminant = 2² - 4(-9)(2) = 76

The discriminant is positive, so there are two distinct roots.

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NEED ASAP NEED TO RURN IN FAST!!! WILL MARK *BRAINLIEST*
Travka [436]

Answer:

B

Step-by-step explanation:

We know that:

-measuring a cone
-diameter: 18 units
-height: 8 units

We need to know how to find the volume of this cone. To do this, we need the equation to find the volume of a cone:
V= \pi r^2\frac{h}{3}                   where r=radius and h=height

Upon assessing this equation we also now know that we are missing a radius.

For a circle, the radius is the distance from the midpoint, center, to the border of the circle. The diameter is the distance from the border of one circle to another, passing through the midpoint. Knowing this, we can conclude that the diameter is two times the radius.

Using this information we can figure out the radius for this cone: 9 units.

Now that we have the radius, we can plug in the rest of the numbers with the correct placements.

V= \pi 9^2\frac{8}{3}                    square the 9 by calculating 9 times 9.

V=\pi*81*\frac{8}{3}             combine like terms and keep pi separate.

V=216\pi cubic units
Since this problem is asking for volume, we will used cubic units.

6 0
2 years ago
Read 2 more answers
Point M is the midpoint of segment QR. If QM = 16 + x and MR = 2(x + 2), find the length of QR. QR = 12 QR = -12 QR = 28 QR = 56
vfiekz [6]
The midpoint divided a segment into two congruent lengths/segments.

So, QM = MR.

Set up the equation.

16 + x = 2(x+ 2)

16 + x = 2x + 4

12 + x = 2x

12 = x


Now, that you have the value of x, substitute it for the two equations.

QM = 16 + x

QM = 16 + 12

QM = 28


MR = 2(12+ 2)

MR = 2(14)

MR = 28


Find the whole length by of the line by adding the two segments. 28 × 2 = 56.

QR = 56
6 0
4 years ago
7 bicycles to 13 skateboards
Ugo [173]
If you want the ratio then its 7:13

hope this helps you
3 0
3 years ago
Read 2 more answers
What is the value of the expression 30+(-6)?<br> A -180<br> B -5<br> C 5<br> D 24
Evgesh-ka [11]

Answer:

24

Step-by-step explanation:

from the question above,

30+(-6) =

when plus is multiplying minus it's minus

+ × - = -

30-6 = 24

4 0
2 years ago
Read 2 more answers
1 2 3 4 5 6 7 8 9 10
Maslowich

The graph that represents viable values for y = 2x is Option A.

<h3>What is a Straight Line Function ?</h3>

A straight line function is given by y = mx +c , where m is the slope and c is the y intercept.

The given equation is y = 2x

here m  = 2

x is the number of pounds of rice scooped and purchased from a bulk bin

y is the total cost of the rice

as both the data cannot be negative , Option C , D is out of choice

The Option 1 represents a straight line and it starts at the origin which is satisfied by y = 2x as y = 0 , at x = 0

ends at  point (2.5, 5) giving a slope of m =2 ,

Therefore , The graph that represents viable values for y = 2x is Option A.

To know more about Straight Line equation

brainly.com/question/959487

#SPJ1

6 0
2 years ago
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