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
alekssr [168]
2 years ago
13

What is the value of the discriminant for x2 + 5x = -7?​

Mathematics
1 answer:
Verdich [7]2 years ago
3 0

Answer:

x = -1

Step-by-step explanation:

2x + 5x = -7

7x = -7

x = -1

You might be interested in
A tennis ball has a radius of about 1.4 inches What is the volume of the tennis ball to the nearest half inch.? Use 3.14 as an a
Ilya [14]

Answer:

Volume of tennis ball = 11.49 inch³

Step-by-step explanation:

Given:

Radius of tennis ball = 1.4 inches

Value of π = 3.14

Find:

Volume of tennis ball

Computation:

Volume of sphere = [4/3][π][r]³

Volume of tennis ball = [4/3][π][Radius of tennis ball]³

Volume of tennis ball = [4/3][3.14][1.4]³

Volume of tennis ball = [1.333][3.14][1.4]³

Volume of tennis ball = [1.333][3.14][2.744]

Volume of tennis ball = [4.1856][2.744]

Volume of tennis ball = 11.4852

Volume of tennis ball = 11.49 inch³

6 0
2 years ago
Who drove faster? Trevor drove 202 miles in 4 hours Maggie drove 330 miles in 6 hours Nev drove 412 miles in 8 hours Juanita dro
Roman55 [17]

Answer:

Maggie

Step-by-step explanation:

So trevor drove 50.5mph bc 202/4

Maggie 330/6 = 55mph

Nev 412/8=51.5mph

Juanita 261/5= 52.2mph


7 0
3 years ago
Find the inverse of the function. Show work. <br> g(x)= - 3/x-2 +2
4vir4ik [10]

Answer:

\displaystyle g^{-1}(x)=\frac{-7+2x}{x-2}

Step-by-step explanation:

We are given the function:

\displaystyle g(x)=-\frac{3}{x-2}+2

Let's find the inverse of g.

Call y=g(x):

\displaystyle y=-\frac{3}{x-2}+2

We need to solve for x. Multiply both sides by x-2 to eliminate denominators:

y(x-2)=-3+2(x-2)

Operate:

yx-2y=-3+2x-4

Collect the x's to the left side and the rest to the right side of the equation:

yx-2x=-3-4+2y

Factor the left side and operate on the right side:

x(y-2)=-7+2y

Solve for x:

\displaystyle x=\frac{-7+2y}{y-2}

Interchange variables:

\displaystyle y=\frac{-7+2x}{x-2}

Call y as the inverse function:

\boxed{\displaystyle g^{-1}(x)=\frac{-7+2x}{x-2}}

5 0
3 years ago
Help pleaseeeeeeeeee
zepelin [54]

Answer:

1. y = -5x+2

2. y = 1/2x + 4

3. y = 3x -5

Step-by-step explanation:

hope thus helps :)

3 0
2 years ago
Read 2 more answers
Darnell took a total of 14 pages of notes during 7 hours of class. After attending 8 hours of
SVEN [57.7K]

Answer:

16 pages

Step-by-step explanation:

1 hour= 2 pages written of notes

so 8 hours of notes = 8x2=16 pages

4 0
2 years ago
Other questions:
  • Given four functions, place them in order of their y-intercept, from highest to lowest.
    9·2 answers
  • name the rational numbers that are not integers from the list below -11,0,57,8.07, sqrt 13, sqrt 4, 2 1/6, -8/45, 1.1919919991..
    13·1 answer
  • I feel like it’s C but I need gel to make sure it’s right help please I can’t really get any wrong on this
    8·1 answer
  • Wat is the answer from leaat to greatest by -0.3 0.5 0.55 -0.35
    15·1 answer
  • Difference between negatives and positives. The average temperature in Neptune is -320 F while the average temperature in Venus
    9·1 answer
  • Simplify: sec(θ) sin(θ) cot(θ)
    9·2 answers
  • What are some abundant numbers
    10·1 answer
  • What is the midpoint for the points (2, 4) and (8, 10)?
    8·1 answer
  • Suppose an automobile manufacturer designed a radically new lightweight engine and wants to recommend the grade of gasoline that
    7·1 answer
  • The rocket that will return the rock and soil samples to Earth cannot lift off if the total weight of the samples from the rover
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!