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
Musya8 [376]
2 years ago
8

Characteristics of quadratics

Mathematics
1 answer:
FinnZ [79.3K]2 years ago
6 0

Answer:

There are two zeros. The intercepts are -2 and -4

Step-by-step explanation:

The zeros of a parabola are the points where the parabola intersects with the x axis. In other words, they are when the y value equals zero.

In this case, we see that the parabola intersects the x axis at two different points. Those points are (0, -2) and (0, -4)

You might be interested in
Find measures a, b, c, d, and e.
Alina [70]
A and c would equal 70 degrees
And d would equal 110 degree
7 0
3 years ago
After calculating the sample size needed to estimate a population proportion to within 0.05, you have been told that the maximum
Svetlanka [38]

Answer:  40000

Step-by-step explanation:

The formula to find the sample size is given by :-

n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2, where p is the prior estimate of the population proportion.

Here we can see that the sample size is inversely proportion withe square of margin of error.

i.e. n\ \alpha\ \dfrac{1}{E^2}

By the equation inverse variation, we have

n_1E_1^2=n_2E_2^2

Given : E_1=0.05   n_1=1000

E_2=0.025

Then, we have

(1000)(0.05)^2=n_2(0.025)^2\\\\\Rightarrow\ 2.5=0.000625n_2\\\\\Rightarrow\ n_2=\dfrac{2.5}{0.000625}=4000

Hence, the sample size will now have to be 4000.

6 0
3 years ago
225% of what number is 81
Airida [17]
To find a percentage of a number we multiply the percentage times the number and get the result, here we have the percentage and the result and need to find out which number it corresponds to, lets write an equation to do so and keep in mind that the percentage itself can be written in a different way:
225% = 225 out of 100 = 225/100
So we have this equation, where we call x the number we are looking for:
<span>(225%)(x) = 81
</span>(225/100)(x) = 81
so we solve for x:
225x = 81*100 = 8100
x = 8100/225
x = 36
The original number is 36, hence 225% of 36 is 81
4 0
3 years ago
What kind of sequence is the pattern 1, 6, 7, 13, 20, ...?
AlexFokin [52]

Answer:

The given sequence 6, 7, 13, 20, ... is a recursive sequence

Step-by-step explanation:

As the given sequence is

6, 7, 13, 20, ...

  • It cannot be an arithmetic sequence as the common difference between two consecutive terms in not constant.

As

d = 7-6=1,  d = 13-7=6

As d is not same. Hence, it cannot be an arithmetic sequence.

  • It also cannot be a geometrical sequence and exponential sequence.

It cannot be geometric sequence as the common ratio between two consecutive terms in not constant.

As

r = 7-6=1,  r = 13-7=6

r = \frac{7}{6},  r = \frac{13}{7}

As r is not same, Hence, it cannot be a geometric sequence or exponential sequence. As exponential sequence and geometric sequence are basically the same thing.

So, if we carefully observe, we can determine that:

  • The given sequence 6, 7, 13, 20, ... is a recursive sequence.

Please have a close look that each term is being created by adding the preceding two terms.

For example, the sequence is generated by starting from 1.

     {\displaystyle F_{1}=1

and

     {\displaystyle F_{n}=F_{n-1}+F_{n-2}}

for n > 1.

<em>Keywords: sequence, arithmetic sequence, geometric sequence, exponential sequence</em>

<em>Learn more about sequence from brainly.com/question/10986621</em>

<em>#learnwithBrainly</em>

6 0
3 years ago
Is the sum of two rational numbers rational
Advocard [28]

Answer:

no they are irrational

6 0
3 years ago
Other questions:
  • What is 19.2 x 10^8 minutes in hours
    14·1 answer
  • The admission fee at an amusement park is $2.00 for children and $5.60 for adults. On a certain day, 352 people entered the park
    11·1 answer
  • Classify the real number.
    11·1 answer
  • Which numbers are in the domain of the following function?
    13·2 answers
  • ABCD is a square
    13·1 answer
  • Brad paints a house in 5 days. When his brother Nick joins him, they can paint a house in 3 days. How long does it take Nick to
    13·1 answer
  • Write the quadratic equation y = x2- 6x + 7 in vertex form
    14·1 answer
  • Katrina received a raise in pay from $14.00 per hour to $15.10 per hour. What is her percent increase in pay per hour?
    7·1 answer
  • A college radio station sponsors a contest once a week. One resident from a dormitory calls in and tries to answer ten questions
    5·1 answer
  • You invest $500 in an account that pays 6% interest compounded continuously. How
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!