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
Ivahew [28]
3 years ago
12

+12x-7=0 \\" align="absmiddle" class="latex-formula"> give your answer to 2 decimal places
Mathematics
1 answer:
m_a_m_a [10]3 years ago
4 0

Answer:

-2. 46

- 9.54

Step-by-step explanation:

  • 2x²+12x-7=0
  • 2x²+12x+18= 25
  • 2*(x²+6x+9)=25
  • 2*(x+6)²= 5²
  • x+6= 5√2/2 ⇒ x= 5√2/2 -6 ≈ -2. 46
  • x+6= -5√2/2 ⇒ x= -5√2/2 -6 ≈ - 9.54
You might be interested in
8) How many solutions does the following<br> equation have?<br> 0 = 9x2 - 6x + 1
sweet [91]
I’m guessing it’s 9x^2 -6x + 1 but this is basically just one. (1/3,0) use desmos if you’re curious
4 0
2 years ago
29 degrees C to Fahrenheit.​
Shtirlitz [24]

Answer:

29 degrees Celsius are 84.2 Fahrenheit.

Step-by-step explanation:

In order to convert Celsius to Fahrenheit you can use this formula: F = C * 1.8 + 32.

Here we have F = 29 * 1.8 + 32 which equals 84.2. Instead of 1.8 you can use the fraction \frac{9}{5} if you wish so.

3 0
3 years ago
Read 2 more answers
Explain answer ! <br><br> Will give brainlst
Ne4ueva [31]

Answer:

x = 4, y = 2

Step-by-step explanation:

Start by multiplying the first equation by 2:

2x + 2y = 12 --> 4x + 4y = 24

Subtract the second from the first:

   4x + 4y = 24

-   5x + 4y = 28

4x - 5x = -x

4y = 4y = 0

24 - 28 = -4

so you end with -x + 0 = -4

Solve for x to get x = 4

Plug x = 4 back into 2x + 2y = 12 to find y.

2(4) + 2y = 12

8 + 2y = 12

2y = 4

y = 2

5 0
3 years ago
Pls help i dont get how to do this
Lorico [155]

Step-by-step explanation:

What this is saying is...20 is a whole number; but 3/4 is not. What they are saying is, if you have to add a mixed number with a whole number, you can add both of the whole numbers together. Then, you add the 3/4 at the end...because it is not a whole number. You can break apart a mixed number by separating the whole number and the fraction.

Hope this helps :)

3 0
3 years ago
Area of the blue shaded region ?​
kolbaska11 [484]

Answer: 44

Step-by-step explanation:

you first look at the circle

next you see the numbers that are in the circle

after that you multiply the 2 numbers together

so, 4x11 = 44

7 0
3 years ago
Other questions:
  • A circular Petri dish has a diameter of 10 centimeters. If the dish contains 2,450 bacteria, what is the population density of b
    12·1 answer
  • Non-intersecting lines that are separated by equal distances at every point can best be described as _____.
    12·2 answers
  • A cruise boat travels 48 miles Downstream in 2 hours and returns Upstream in 3 hours. Find the speed of the boat in still water
    5·1 answer
  • What is 0.1x = 0.2(x+2)
    13·2 answers
  • Evaluate the integral. pls help me see the steps. thank you​
    7·1 answer
  • Please help me out i will mark brainliest i need help on this! Its plot dot and dot plotting!
    5·1 answer
  • . State the length of the missing side. Note: This quadrilateral is a parallelogram.
    14·1 answer
  • Which value is not equivalent 0.37 0.370 37/100
    7·2 answers
  • Identify the slope and y-intercept of the graph
    5·2 answers
  • N ≤ -2.5 i’m doing mathematics
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!