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
Sophie [7]
3 years ago
7

Does anybody know this? I need some help​

Mathematics
2 answers:
aksik [14]3 years ago
6 0

Answer:

hay multiplocalo y bxa no se ingles solo español

Katena32 [7]3 years ago
4 0
ANSWER:
Number of faces: 6
Number of edges: 12
Number of vertices: 8
You might be interested in
F(x)=<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%5E2-4%7D" id="TexFormula1" title="\sqrt{x^2-4}" alt="\sqrt{x^2-4}" align="abs
hammer [34]

Solve for <em>x</em> when √(<em>x</em> ² - 4) = 1 :

√(<em>x</em> ² - 4) = 1

<em>x</em> ² - 4 = 1

<em>x</em> ² = 5

<em>x</em> = ±√5

We're looking at <em>x </em>≤ 0, so we take the negative square root, <em>x</em> = -√5.

This means <em>f</em> (-√5) = 1, or in terms of the inverse of <em>f</em>, we have <em>f</em> ⁻¹(1) = -√5.

Now apply the inverse function theorem:

If <em>f(a)</em> = <em>b</em>, then  (<em>f</em> ⁻¹)'(<em>b</em>) = 1 / <em>f '(a)</em>.

We have

<em>f(x)</em> = √(<em>x</em> ² - 4)   →   <em>f '(x)</em> = <em>x</em> / √(<em>x</em> ² - 4)

So if <em>a</em> = -√5 and <em>b</em> = 1, we get

(<em>f</em> ⁻¹)'(1) = 1 / <em>f '</em> (-√5)

(<em>f</em> ⁻¹)'(1) = √((-√5)² - 4) / (-√5) = -1/√5

The sign must be negative; see the attached plot, and take note of the negatively-sloped tangent line to the inverse of <em>f</em> at <em>x</em> = 1.

3 0
3 years ago
How many solutions does the system have?
klio [65]

it have manny solution it depand on a method u are using

4 0
3 years ago
Many universities and colleges have instituted supplemental instruction (SI) programs, in which a student facilitator meets regu
aev [14]

Answer:

Step-by-step explanation:

Let many universities and colleges have conducted supplemental instruction(SI) programs. In that a student facilitator he meets the students group regularly who are enrolled in the course to promote discussion of course material and enhance subject mastery.

Here the students in a large statistics group are classified into two groups:

1). Control group: This group will not participate in SI and

2). Treatment group: This group will participate in SI.

a)Suppose they are samples from an existing population, Then it would be the population of students who are taking the course in question and who had supplemental instruction. And this would be same as the sample. Here we can guess that this is a conceptual population - The students who might take the class and get SI.

b)Some students might be more motivated, and they might spend the extra time in the SI sessions and do better. Here they have done better anyway because of their motivation. There is other possibility that some students have weak background and know it and take the exam, But still do not do as well as the others. Here we cannot separate out the effect of the SI from a lot of possibilities if you allow students to choose.

The random assignment guarantees ‘Unbiased’ results - good students and bad are just as likely to get the SI or control.

c)There wouldn't be any basis for comparison otherwise.

5 0
2 years ago
Determine whether the following graph represents a function.
Nata [24]

Answer:

yes

Step-by-step explanation:

5 0
2 years ago
What is 2 radical 15 squared
aleksandrvk [35]
2\sqrt{15^2}=2\cdot15=30\\\\\\2\sqrt{15^2}=2\cdot\left(15^2\right)^\frac{1}{2}=2\cdot15^{2\cdot\frac{1}{2}}=2\cdot15=30



\left(2\sqrt{15}\right)^2=2^2\cdot\left(\sqrt{15}\right)^2=4\cdot15=60\\\\\left(2\sqrt{15}\right)^2=2^2\cdot\left(\sqrt{15}\right)^2=4\cdot\left(15^\frac{1}{2}\right)^2=4\cdot15^{\frac{1}{2}\cdot2}=4\cdot15^1=4\cdot15=60
8 0
3 years ago
Other questions:
  • Let ∠X and ∠Y be complementary. If sin(X) = 3/5
    7·2 answers
  • According to the table listing average daily expenses for a tourist by country based on high and medium categories, Brazil has a
    7·2 answers
  • Solve for D 7.830 = 3.915(1.106)D
    9·1 answer
  • The mixed number 9 14/100 is equivalent to 9.14.
    8·2 answers
  • Out of 80 workers surveyed at a company, 11 walk to work A. What is the experimental probability that a randomly selected worker
    8·1 answer
  • In a card game, 5 cards are drawn from a deck of 52 cards. What is the probability that three nines and two tens are drawn?
    10·1 answer
  • . In a town of 42,800 inhabitants, 48% are male. The rest are female. How many more females are there than males?
    11·2 answers
  • amber has $300 in cash, $11,300 in investements and an automobile worth $13,400. She owes $3,900 on her auto los . What is her n
    6·1 answer
  • Corry collects cube containers. She fills them with water and pours them into a rectangular prism. She was playing with them and
    12·1 answer
  • -0.25 (12y + 4) which expression is equivalent to this expression?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!