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
oksian1 [2.3K]
3 years ago
7

What are the coordinates of the vertex of the graph of y = x2 + 8x + 1?

Mathematics
1 answer:
Rus_ich [418]3 years ago
6 0

Answer:

y= x2 + 8x - 1 is y=(x+4) 2-17

Step-by-step explanation:

First find  - b/2 = - 4, so  -4 will be added to x inside the parenthesis.

Next , find c - b2 to find the value you added at the end

y= (x- b2) 2 + c - b2

y= (x+4) 2 - 17

You might be interested in
The path between three landmarks in a national park form a right triangle. The oldest living evergreen tree is at point​ A, the
Akimi4 [234]

Answer:

347yards

Step-by-step explanation:

3 0
3 years ago
Lucy Baker is analyzing demographic characteristics of two television programs, American Idol (population 1) and 60 Minutes (pop
creativ13 [48]

Answer:

Alternative hypothesis:\mu_1 -\mu_2 \neq 0

Or in the alternative way would be:

 Alternative hypothesis:\mu_1 \neq \mu_2

Step-by-step explanation:

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

On this case the claim that they want to test is: "The means for the two groups (American Idol and 60 Minutes) is the same". So we want to check if we have significant differences between the two means, so this needs to be on the alternative hypothesis and on the null hypothesis we need to have the complement of the alternative hypothesis.

Null hypothesis:\mu_1 -\mu_2 = 0

This null hypothesis can be expressed like this:

Null hypothesis:\mu_1 = \mu_2

Alternative hypothesis:\mu_1 -\mu_2 \neq 0

Or in the alternative way would be:

Alternative hypothesis:\mu_1 \neq \mu_2

4 0
3 years ago
3 1/7 x 2 2/8 (multiply fractions)
k0ka [10]

Answer:

.214 if it is to 3 decimal places.

5 0
3 years ago
Somebody please help. And be fr cause I’ll give that brainilest or whatever it’s called but please be the right answer.
bearhunter [10]
130 you multiply the left side by 13 to get the right side.
8 0
2 years ago
0.04 is 10 times as great as which decimal?
noname [10]

Answer:

04 is ten times as great as which decimal. 0.04 = 10 times decimal number . 0.04 = 10 * x. On dividing both sides by 10. x = . x = 0.004. Therefore, Decimal number 0.004

Step-by-step explanation:

Hope this helps :))

7 0
3 years ago
Other questions:
  • 240 televisions of a store are are high definition. These 240 televisions make up 80% of the televisions. How many televisions a
    6·1 answer
  • If the sales tax in your city is 4.4%, and an item costs
    10·1 answer
  • Write an expression that is equal to 3x2 1/4
    7·1 answer
  • sarita recorded the distances she ran for 5 days:5 miles,4mi,5.5mi,4.5,5.5 what is the mean distance sarita ran
    12·1 answer
  • List the probability value for each possibility in the binomial experiment calculated at the beginning of this lab, which was ca
    14·1 answer
  • What is 50/7 as a mixted number
    15·2 answers
  • Solve for x.
    7·1 answer
  • 2 3/4 ÷ 10 in simplest form
    14·2 answers
  • What is the answer to this​
    6·1 answer
  • Please help asap!! I will mark you as brainliest :)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!