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
Assoli18 [71]
3 years ago
6

Evaluate y = ex + 1 for the following values of x. Round to the nearest thousandth. x = −2, y ≈ x = 1, y ≈ x = 2, y ≈

Mathematics
2 answers:
soldier1979 [14.2K]3 years ago
4 0
The equation is not clear whether it is y= e^{x+1} or y= e^{x} +1

for y= e^{x+1}

x=-2 ⇒ e^{-2+1}=0.37
x=1 ⇒ e^{-1+1} = e^{0}=1
e^{2+1}= e^{3}=20.10

for y= e^{x}+1

x=-2⇒y=e^{-2}+1 =1.14
x=1⇒y= e^{1} +1=3.72
x=2⇒y= e^{2}+1=8.39

Hint: Most scientific calculators have the template of e^{( )} which you can use to work out the value of y
Brilliant_brown [7]3 years ago
4 0

1.135, 3.718, 8.389

Graph: B

You might be interested in
Estimating a square root.
Digiron [165]
I'm sorry but I'm not into square roots yet :(
5 0
3 years ago
Read 2 more answers
What is 12,760,000 in scientific notation
nalin [4]

Answer:

12,760,000 in scientific notation

1.2760000 \times  {10}^{7}

4 0
3 years ago
​A manager wants to know if the mean productivity of two workers is the same. For a random selection of 30 hours in the past​ mo
vekshin1

Answer:

A.The data should be treated as paired samples. Each pair consists of an hour in which the productivity of the two workers is compared.

Explanation:

If the mean productivity of two workers is the same.

For a random selection of 30 hours in the past month, the manager compares the number of items produced by each worker in that hour.

There are two samples and the productivity of the two men is paired for each hour.

7 0
3 years ago
If the sum of the zereos of the quadratic polynomial is 3x^2-(3k-2)x-(k-6) is equal to the product of the zereos, then find k?
lys-0071 [83]

Answer:

2

Step-by-step explanation:

So I'm going to use vieta's formula.

Let u and v the zeros of the given quadratic in ax^2+bx+c form.

By vieta's formula:

1) u+v=-b/a

2) uv=c/a

We are also given not by the formula but by this problem:

3) u+v=uv

If we plug 1) and 2) into 3) we get:

-b/a=c/a

Multiply both sides by a:

-b=c

Here we have:

a=3

b=-(3k-2)

c=-(k-6)

So we are solving

-b=c for k:

3k-2=-(k-6)

Distribute:

3k-2=-k+6

Add k on both sides:

4k-2=6

Add 2 on both side:

4k=8

Divide both sides by 4:

k=2

Let's check:

3x^2-(3k-2)x-(k-6) \text{ with }k=2:

3x^2-(3\cdot 2-2)x-(2-6)

3x^2-4x+4

I'm going to solve 3x^2-4x+4=0 for x using the quadratic formula:

\frac{-b\pm \sqrt{b^2-4ac}}{2a}

\frac{4\pm \sqrt{(-4)^2-4(3)(4)}}{2(3)}

\frac{4\pm \sqrt{16-16(3)}}{6}

\frac{4\pm \sqrt{16}\sqrt{1-(3)}}{6}

\frac{4\pm 4\sqrt{-2}}{6}

\frac{2\pm 2\sqrt{-2}}{3}

\frac{2\pm 2i\sqrt{2}}{3}

Let's see if uv=u+v holds.

uv=\frac{2+2i\sqrt{2}}{3} \cdot \frac{2-2i\sqrt{2}}{3}

Keep in mind you are multiplying conjugates:

uv=\frac{1}{9}(4-4i^2(2))

uv=\frac{1}{9}(4+4(2))

uv=\frac{12}{9}=\frac{4}{3}

Let's see what u+v is now:

u+v=\frac{2+2i\sqrt{2}}{3}+\frac{2-2i\sqrt{2}}{3}

u+v=\frac{2}{3}+\frac{2}{3}=\frac{4}{3}

We have confirmed uv=u+v for k=2.

4 0
3 years ago
Find the product of 0.51 x 2.427​
Natalka [10]

Answer:1.23777

Step-by-step explanation: Calculators answer

7 0
2 years ago
Other questions:
  • if R and S are two points in a plane, the perpendicular bisector of line RS is the set of all points equidistant from R and S. T
    13·1 answer
  • Conditional probabilities
    11·1 answer
  • Assume that it costs Apple approximately
    13·1 answer
  • Does size, shape or angle measurements change in the following:
    13·2 answers
  • Find the angle between the hands of a clock at 5:15. <br> a. 60<br> b. 67.5<br> c. 75
    11·2 answers
  • Write down the number that is equal to the fifth power of 10
    7·2 answers
  • Expand and simplify (x-3)(x+5)​
    5·1 answer
  • Evaluate f (x) = -4x + 7 when x = 2 and x = -2
    15·1 answer
  • What is the area of the shape shown? All units are in feet.
    7·2 answers
  • Kevin and Randy Muise have a jar containing 32 ​coins, all of which are either quarters or nickels. The total value of the coins
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!