1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lubov Fominskaja [6]
4 years ago
13

Complete a table with at least 5 points then graph the following quadratic on the coordinate plane. Identify all zeros.y = -2x2

+ 5x + 8

Mathematics
1 answer:
Anna [14]4 years ago
3 0

Answer:

See attached

Step-by-step explanation:

Given function:

  • y = -2x² + 5x + 8

Table and graph are attached

Zeros are included in the graph

<u>Zero's are obtained:</u>

x = 0 ⇒ y = 8

y = 0 ⇒  Solving quadratic equation

  • -2x² + 5x + 8 = 0
  • x = (-5 ± √(25 + 2*4*8))/-4
  • x = 3.608
  • x = -1.108

So zeros are (0, 8), (3.608, 0) and (-1.108, 0)

You might be interested in
Define each following sets by listing its elements, the set of letters in the word "salt"
leonid [27]

The word can be represented as a set and in the roaster form the set of letters is {s, a, l, t}

<h3>What is set?</h3>

A set is a collection of clearly - defined unique items. The term "well-defined" applies to a property that makes it simple to establish whether an entity actually belongs to a set. The term 'unique' denotes that all the objects in a set must be different.

We have given letter:

"salt"

Here, no letter is repeated.

So we can write it as roaster form:

Let's denote the set as S

S = {s, a, l, t}

Number of element in the set = 4

We can make new set from it if the set has only vowels

S(v) = {a}

If set has only consonants:

S(c) = {a, l, t}

Thus, the word can be represented as a set and in the roaster form the set of letters is {s, a, l, t}

Learn more about the set here:

brainly.com/question/8053622

#SPJ1

8 0
2 years ago
50 POINTS!!!!
Softa [21]

Answer:

Step-by-step explanation:

Given that X -  the distribution of heights of male pilots is approximately normal, with a mean of 72.6 inches and a standard deviation of 2.7 inches.

Height of male pilot = 74.2 inches

We have to find the percentile

X = 74.2

Corresponding Z score = 74.2-72.6 = 1.6

P(X<174.2) = P(Z<1.6) = 0.5-0.4452=0.0548=5.48%

i.e. only 5% are below him in height.

Thus the malepilot is in 5th percentile.

3 0
2 years ago
7.
tekilochka [14]

Answer:

I think around 15°c

Step-by-step explanation:

PLEASE accept me in brainly

8 0
3 years ago
The average of 21 number is 30.And largest of it is 50 if we remove the largest 50 what will be average of remaining number will
VLD [36.1K]

Answer:

29

Step-by-step explanation:

Sum of the 21 numbers is 21*30 = 630

Now let's remove 50 from the sum of 630

630-50 = 580

The new average can be found. Remember we removed the largest number so we now have 20 numbers.

580/20 = 29

happy holidays! click the heart to give thanks :)

4 0
3 years ago
660 divided by 15 is the same as?
djyliett [7]

Answer:

44

Step-by-step explanation:

Just divide 660 by 15 to get 44.

4 0
3 years ago
Other questions:
  • It says check the solution to the example problem by replacing n in the original equation with -2 and evaluating both sides. Wha
    7·1 answer
  • Assume that you plan to use a significance level of α = 0.05 to test the claim that p1 = p2, use the given sample sizes and numb
    8·1 answer
  • The graph shown represents the volume of petroleum in a spherical tank with a 15-foot radius as a function of the height of the
    5·1 answer
  • The city of Raleigh has 9,200 registered voters. There are two candidates for city council in an upcoming election: Brown and Fe
    8·1 answer
  • The formula h=40 +50t+10t2 can be used to find the height h, in meters, of an object shot upward from the top of a 40 meter
    12·1 answer
  • What is the answer to there are 3 types of fish in a pond. There are a total of 162 fish. There is the same number of each type
    9·2 answers
  • Which Shows a translation?
    8·2 answers
  • What are the major arcs of o0 that contain point B?
    12·1 answer
  • 6x2 - 21 = 33; Solve and what are the x-intercepts of this quadratic equation ?
    6·1 answer
  • Is 5/12 closer to 0, 1, 1/2
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!