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
Feliz [49]
3 years ago
11

Using the equation ŷ = 2.6 − 3.1x, what is the predicted value if x is 4.3?

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
5 0
<h3>Answer: Choice A) -10.73</h3>

Work Shown:

Plug x = 4.3 into the equation given

ŷ = 2.6 − 3.1x

ŷ = 2.6 − 3.1(4.3)

ŷ = 2.6 − 13.33

ŷ = -10.73

Note: The symbol ŷ is read as "y hat". It's used to estimate the y value when it comes to regression equations.

You might be interested in
Two angles are supplementary. If the measure of the first angle is 88° what is the measure of the second angle?
DiKsa [7]

Answer:

92

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
X^2 -3x + 0 = 0 Factor and solve
Luda [366]
So if you subtract the 0 out from the left side, the equation is now x^{2}-3x=0. Since a x is common in both of the terms on the left side, you can factor it out, now making the equation look like x(x-3)=0. When factoring, each of the separate things (x and (x-3)), must equal zero while the other one doesn't matter. So in order for the equation to be 0, the only potential options for x is 0 and 3. Therefore x=0 and x=3 are the two solutions
3 0
4 years ago
Read 2 more answers
Caden states that n^2 +3n + 2n is an equivalent expression to 6n. Why is Caden's statement incorrect?
malfutka [58]
\begin{gathered} \text{The simplification of n}^2+3n+2n\text{ is:} \\ i)n^2+5n \\ By\text{ collecting common term, this can be written in form of:} \\ ii)\text{ n(n+5)} \end{gathered}

Thus, options A and D hold, from the simplifications above.

Let's consider the validity of the remaining options provided.

\begin{gathered} \text{For option B)} \\ \text{substitute for n=1 into the expression n}^2+3n+2n,\text{ we have} \\ 1^2+3(1)+2(1)=1+3+2=6 \\ \text{substitute for n=1 into the expression 6n, we have} \\ 6(1)=6 \\ \text{Thus, the expression n}^2+3n+2n\text{ is equivalent to 6n, for n=1} \end{gathered}\begin{gathered} \text{For option C)} \\ \text{The expression n}^2+3n+2n\text{ does not simplify to 7n} \end{gathered}\begin{gathered} \text{For option E)} \\ \text{substitute for n=4 into the expression n}^2+3n+2n,\text{ we have:} \\ 4^2+3(4)+2(4)=16+12+8=36 \\ \text{substitute for n=6 into the expression 6n, we have:} \\ 6(4)=24 \\ \text{Thus, the two(2) expressions are not equivalent to each other, for n=4} \end{gathered}\begin{gathered} \text{For option F)} \\ \text{substitute for n=3 into the expression n}^2+3n+2n,\text{ we have:} \\ 3^2+3(3)+2(3)=9+9+6=24 \\ \text{substitute for n=3 into the expression 6n, we have:} \\ 6(3)=18 \\ \text{Thus, the two(2) expressions are not equivalent to each other, for n=3} \end{gathered}

Hence, the correct options that apply are options A, D, E and F

7 0
1 year ago
Helpppp!BASIC MATHhhh
MAXImum [283]

How much we need for start-up supplies . . . . . $25

AFTER start-up supplies we want to have . . . $70

Total amount we need to get started . . . (25 + 70) = $95

Number of people contributing . . . (me + 4) = 5

<em>Amount each person needs to kick in</em> . . . (95/5) = <em>$19</em>

As your preliminary Accountant, please reserve me one dozen (13) bagels from the first batch you produce !

4 0
4 years ago
What is the ratio of 280/420 in its simplest form?
Alex777 [14]

Answer:

1/2 one half

Step-by-step explanation:

1/2 one half

5 0
3 years ago
Other questions:
  • What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?
    8·2 answers
  • Which are the possible side lengths of a triangle
    14·1 answer
  • The number forty one to the power of negative start fraction two over five end fraction end power can be written in the form sta
    6·1 answer
  • Parallel to the line y= -2x + 4 and passes through point A(2, 4)
    11·2 answers
  • A chef makes 3 containers of soup that fill a total of 120 soup bowls. Each container of soup cost $30 to make. What is the cost
    15·1 answer
  • Assignments due in 4 minutes. HELP
    12·2 answers
  • What is the value of x in this equation? - 7/3x - 2/15 (15x - 5) = 4/3
    15·1 answer
  • Evaluate the expression.
    12·1 answer
  • Gerri says that if a number is a multiple of 9 it is also a multiple of 3. Do you agree ? Explain
    5·1 answer
  • There is an ample supply of identical blocks (as shown). Each block is constructed from four 1 × 1 × 1 unit-cubes glued whole-fa
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!