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
gladu [14]
3 years ago
15

X^2+10x+5=30 quadratic equation

Mathematics
1 answer:
Vsevolod [243]3 years ago
4 0
First subtract 30 from both sides so it is equal to 0

the quadratic formula is -b plus or minus sqrt of (b^2 - 4ac) all over 2a so
-10 plus or minus sqrt (100-25) all over 2
this is equivalent to 
You might be interested in
The ticket for ice hockey match was £14.50. the price has increased by 7%.
Serjik [45]
(14.50×7)/100 + 14.50
7 0
3 years ago
Read 2 more answers
Worth 20 points, first answer gets brainliest!
user100 [1]

Answer:

x = -7

Step-by-step explanation:

Simplifying

5x + 130 = 8x + 151

Reorder the terms:

130 + 5x = 8x + 151

Reorder the terms:

130 + 5x = 151 + 8x

Solving

130 + 5x = 151 + 8x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8x' to each side of the equation.

130 + 5x + -8x = 151 + 8x + -8x

Combine like terms: 5x + -8x = -3x

130 + -3x = 151 + 8x + -8x

Combine like terms: 8x + -8x = 0

130 + -3x = 151 + 0

130 + -3x = 151

Add '-130' to each side of the equation.

130 + -130 + -3x = 151 + -130

Combine like terms: 130 + -130 = 0

0 + -3x = 151 + -130

-3x = 151 + -130

Combine like terms: 151 + -130 = 21

-3x = 21

Divide each side by '-3'.

x = -7

Simplifying

5 0
3 years ago
Read 2 more answers
What is the elimination to this solution i think its b
Blababa [14]

EXPLANATION:

To get the solution of the simultaneous equation, using the elimination method:

We will have the following steps:

Step 1:

Write the two equations:

\begin{gathered} y=-\frac{1}{2}x+3 \\ y=-\frac{7}{2}x-3 \end{gathered}

Step2: Subtract the two equations:

\begin{gathered} y-y=-\frac{1}{2}x-(-\frac{7}{2}x)+3-(-3) \\ 0=-\frac{1}{2}x+\frac{7}{2}x+6 \\  \end{gathered}

Step 3: Simplify the expression

\begin{gathered} 0=3x+6 \\ 3x=-6 \\ x=-\frac{6}{3} \\ x=-2 \end{gathered}

Step 4: Substitute x=-2 into the formula:

\begin{gathered} y=-\frac{1}{2}x+3 \\ y=-\frac{1}{2}\times-2+3 \\ y=1+3 \\ y=4 \end{gathered}

Therefore, the answer is

(-2,4)

Thus,

Option B is correct

5 0
1 year ago
What is the replica of 2/3
Bas_tet [7]

Answer: 6

Step-by-step explanation: or 9

8 0
3 years ago
Can someone help me?
hram777 [196]

Answer:

first we will collect like term

2x-x+3x+4y+7y

4x+11y

there fore the answer is <u>4x+11y</u>

4 0
2 years ago
Other questions:
  • An open topped fish tank had a length if 60 inches, width if 14 1/2 inches and height if 15 inches. What is the volume of the wa
    15·1 answer
  • Find the value of the expression 2xy^3 if x=3 and y=-2?
    11·1 answer
  • Find the maxmium area of a rectangular plot of land which can be enclosed by rope of length 60 metres​
    5·1 answer
  • PLZZZZ HELP ME i give you the brainest
    8·1 answer
  • Which of the following can be classified as Discrete and Quantitative data. The number of students in your school. The different
    12·1 answer
  • An experiment consists of tossing a pair of balanced, six-sided dice. (a) Use the combinatorial theorems to determine the number
    12·1 answer
  • GO FROM BLACK DOT TO BLACK DOT FOR CALCULATIONS TO BE ACCURATE
    11·1 answer
  • Circle the letter of the
    12·1 answer
  • PLEASE HELP WILL GIVE BRAINLY FAST!!:)
    13·1 answer
  • The position of a 2 kg object is given as x(t) = Bt2 +5, where x is in meters and t is in seconds. (a) Determine the force F res
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!