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
butalik [34]
3 years ago
13

Solve each question for x. xe^-x+7e^-x=0

Mathematics
1 answer:
murzikaleks [220]3 years ago
7 0

Answer:

x=-7

Step-by-step explanation:

xe^-x+7e^-x=0

factor out the e^-x

e^-x(x+7)=0

e^-x=0, x+7=0

-x=ln(0), x=0-7=-7,

since ln(0) is undefined,

the only solution is -7.

You might be interested in
Let f(x)=x^2 and g(x)=(x-3)^2+7 match up the correct transormations that are needed to transform the graph of f(x) to the graph
pentagon [3]

The transformations are vertical translation 7 units up.horizontal translation 3 units to the left

We have given that the equations

let f(x)=x^2 and g(x)=(x-3)^2+7

We have to determine the correct transformation,

<h3>What is the vertical translation?</h3>

Vertically translating a graph is equivalent to shifting the base graph up or down in the direction of the y-axis. A graph is translated to k units vertically by moving each point on the graph k units vertically.

Notice that the addition of 2 units to the variable x in the exponent involves a horizontal shift to the left in 2 units.

Notice as well that subtraction of 4 units to the functional expression involves a vertical shift downwards in 4 units.

To learn more about the transformation visit:

brainly.com/question/2689696

#SPJ1

5 0
1 year ago
ANT
ExtremeBDS [4]

Answer:

Algebra Examples

Popular Problems Algebra Find the Axis of Symmetry f(x)=x^2-5 f(x)=x2−5 Set the polynomial equal to y to find the properties of the parabola. y=x2−5

Rewrite the equation in vertex form.

y=(x+0)2−5 Use the vertex form,  y=a(x−h)2+k, to determine the values of a, h, and k.a=1h=0k=−5

Since the value of a is positive, the parabola opens up.

Opens Up

Find the vertex

(h,k).(0,−5)

Find p, the distance from the vertex to the focus.

14 Find the focus.

(0,−194)

Find the axis of symmetry by finding the line that passes through the vertex and the focus.

x=0

3 0
2 years ago
PLEASE SHOW WORK....
Irina18 [472]

Answer:

Step-by-step explanation:

omg its says you cant have help

8 0
2 years ago
A triangle has a perimeter of 206 inches. if the two sides of the triangle measure 59 inches and 94 inches, determined the lengt
Misha Larkins [42]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ The perimeter is the sum of all the lengths

206 - (59 + 94) = 53

It is 53 inches.

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

3 0
3 years ago
Read 2 more answers
Multiplying a trinomial by a trinomial follows the same steps as multiplying a binomial by a trinomial. Determine the degree and
kykrilka [37]

The <em><u>correct answer</u></em> is:

The degree of the polynomial is 4 and the maximum number of terms is 9.

Explanation:

Multiplying the terms of each trinomial that have the largest degree, we are multiplying x²(x²); this gives us x⁴.  This means the degree of the trinomial, the largest degree of all terms, is 4.

Without multiplying through, we know we will multiply each term of the first trinomial by each term of the second one.  This means that, if no terms are like to combine, we could have 3(3) = 9 terms.

6 0
3 years ago
Read 2 more answers
Other questions:
  • WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWERS!​
    13·1 answer
  • The school secretary orders a new printer and pays $310.30 after tax. The tax rate is 7%. What was the original price of the pri
    5·1 answer
  • A triangular pyramid is made of 4 equilateral triangles. The sides of the triangles measure 5 m, and the height of each triangle
    13·2 answers
  • Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Write and solve an equa
    12·1 answer
  • Three babies A,B and C cry out at interval time. Baby A cries out at every 20 mins, while B cries out at every 30 mins and C cri
    14·2 answers
  • Can the numbers 24, 32, 40 be the lengths of the three sides of a right triangle? Explain why or why not.
    12·2 answers
  • what is the probability of drawing a heart from a deck of cards and then replacing it and then drawing a club​
    5·2 answers
  • Ten cookies and three brownies costs 11.25 six cookies and nine brownies costs 15.75 what is the cost of cookies
    11·1 answer
  • Write an equation of the line with a slope of -7 and y-intercept of 1
    7·1 answer
  • 4x + 7y - 6z + 6y - 9x<br> 4x and ___ are like terms<br> 7y and ___ are like terms
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!