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
Aloiza [94]
3 years ago
9

Use the quadratic formula to solve x² + 9x + 10 = 0. What are the solutions to the equation?

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
6 0

Answer:

-1.30\ and\ -7.70 (2 decimal places)

Step-by-step explanation:

Quadratic Formula: x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

-----------------------------------------------

x^2+9x+10=0

Plug in values:

x=\frac{-9\pm \sqrt{9^2-4\cdot \:1\cdot \:10}}{2\cdot \:1}

First value of x:

x=\frac{-9+\sqrt{41}}{2}=-1.30 (2 decimal places)

Second value of x:

x=\frac{-9-\sqrt{41}}{2}=-7.70 (2 decimal places)

You might be interested in
4+8x=44 I need helpppp please someone help me
xxTIMURxx [149]

Answer: Your answers ×=5 !

6 0
2 years ago
Read 2 more answers
Solve the inequality and graph the solution N+3<5.
____ [38]

Answer:

n<2

Step-by-step explanation:

move all terms not containing n to the right side of the inequality

8 0
3 years ago
What is the surface area of the shape?
Sladkaya [172]

Answer:

54

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
A repair bill for a car is $648.45. The parts cost $265.95. The labor cost is $85 per hour. Write and solve an equation to find
zysi [14]

Answer:

( t - p ) /  85x =  h

( t - 265.95 ) /  85x  = h

648.45 - 265.95 / 85x = 3.32h

h = 3.32

Therefore ( t - p ) /  85x =  3.32

Step-by-step explanation:

648.45 - 265.95

282.50 /85

= 3.32 hrs

Finding equation to find hours can be shown as

( t - p ) /  85x =  3.32

How we found equation to find total

Parts = 19 x 14 - 5/100 = 266- 0.05

648.45 - 265.95 = 282.5

282.5/85 = 3.323  near to 3,233529

Labour = 85x  = 17 (5 + x)

Equation = 17(5+ x) + 14(19) - 5/100 = 648.45 where x = 85

Equation = ( 85x x 3  1/3) + 265 - 19/20 = t

3 0
2 years ago
36 ÷ 3^2 +4*2-1<br> can u help me get the answer?
spin [16.1K]
<span>36 ÷ 3^2 +4*2-1
</span>=36 ÷ 9 + 4*2-1<span>
=</span>4 + 8 - 1
= 11

USING PEMDAS
6 0
3 years ago
Read 2 more answers
Other questions:
  • In triangle DEF measurement angle D = 45 degrees meausrement angle E = 63 degrees and EF = 24 inches. What is DE to the nearest
    8·2 answers
  • A loaf of bread is 1 1/2 feet long. How many 3 inch pieces can be cut from the loaf?
    13·1 answer
  • the vertex angle of on isosceles triangle measures 42 a base angle in the triangle has a measure given by 2x+3
    11·1 answer
  • How do you know which line on a graph is faster? <br><br> A. Steepness<br> B. How high it is
    6·1 answer
  • Gail bought 1180 buttons to put on the shirts she she makes. She uses 6 buttons for each shirt. How shirts can Gail make with th
    6·2 answers
  • How much is 7 kilometers
    10·2 answers
  • If there is 10 dollars and someone needs to distribute it to 5 people how much is everyone getting
    7·2 answers
  • Cos^2A+cos^2A*cot^2A=cot^2A​
    7·1 answer
  • The mean of a data set of 6 numbers is 8. The mean of a different data set of 6 numbers is 20. Whats the mean of the combined da
    6·1 answer
  • Simplify 15(10-4-2)<br> 14<br> 015/2<br> 52-4110<br> O 105-4110
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!