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
Dominik [7]
3 years ago
10

Solve using the quadratic formula.-v^2 + 9v - 5 = 0​

Mathematics
1 answer:
timama [110]3 years ago
8 0

Answer:

v = 9/2 + sqrt(61)/2 or v = 9/2 - sqrt(61)/2

Step-by-step explanation:

Solve for v over the real numbers:

-v^2 + 9 v - 5 = 0

Multiply both sides by -1:

v^2 - 9 v + 5 = 0

Subtract 5 from both sides:

v^2 - 9 v = -5

Add 81/4 to both sides:

v^2 - 9 v + 81/4 = 61/4

Write the left hand side as a square:

(v - 9/2)^2 = 61/4

Take the square root of both sides:

v - 9/2 = sqrt(61)/2 or v - 9/2 = -sqrt(61)/2

Add 9/2 to both sides:

v = 9/2 + sqrt(61)/2 or v - 9/2 = -sqrt(61)/2

Add 9/2 to both sides:

Answer: v = 9/2 + sqrt(61)/2 or v = 9/2 - sqrt(61)/2

You might be interested in
6r - 7 over 10 = r over 4
Ahat [919]
Multiply both sides by 4

subtract 24r from both sides

simplify r - 24r to -23r

divide both sides by -23

two negatives make a positive

simplify 14/5/23 to 14/5 x 23

simplify 5 x 23 to 115

switch sides

Answer: r = 14/115.
7 0
3 years ago
I need help fast due tomorrow!!!
likoan [24]
All are correct except these 2:

The graph has one x-intercept:
No, the graph does not cut at the x-axis at all, there is no x-intercept.

The graph as a y-intercept at (5,0):
No, the y-intercept is at (0,5)
6 0
3 years ago
What is the opposite of -85.23
Ivanshal [37]
85.23 will be the answer
4 0
3 years ago
Read 2 more answers
Find the unit price of a 3-pack of bottled juice for$6.75. how much does 1 bottle cost.​
Olin [163]

Answer:

the answer is 2.25

Step-by-step explanation:

you divide 6.75÷ 3

6 0
3 years ago
Read 2 more answers
Jerome works as a waiter. He earns $80 each weekend plus 15% in tips based on the cost of the meals served.
Softa [21]

Answer:

He gets paid $80 each weekend, and a 15% with tips.

you would need to figure out the tips, by taking the $725 and timesing it by .15 for the percent.

which would be 108.75

you would now take 108.75 and add 80 to get what he made that weekend.

108.75+80 = 188.75 dollars

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • An indirect proof of the statement "If x=2, then √x is not a rational number" coul begin with the assumption that
    7·1 answer
  • I could REALLY use some help on this.
    7·1 answer
  • Question 7
    10·1 answer
  • At the end of The Wizard of Oz, the Scarecrow earns his diploma. He then says, “The sum of the square roots of any two sides of
    8·2 answers
  • Which of the following describes point C? <br> (-2, 1)<br> (-2, -1)<br> (1, -2) <br> (-1, -2)
    11·2 answers
  • The sum of two numbers is 114. The second number is 24 less than twice the first number. Find the numbers.
    10·1 answer
  • Trying to understand this question
    12·1 answer
  • Carl Cornfield represented the acres he planted with a Venn diagram. A = {corn}; B = {wheat}; U = {all grain}. Answer the follow
    12·1 answer
  • Which parent function is represented by the graph?
    10·1 answer
  • 2x4^2=24+97^10=A<br> {A+B=c*}
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!