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
RUDIKE [14]
3 years ago
9

Solve for x in the equation 3 x squared minus 18 x + 5 = 47.

Mathematics
1 answer:
Rudik [331]3 years ago
5 0

Answer:

x = -1.796, 7.796

Step-by-step explanation:

3x² - 18x + 5 = 47

3x² - 18x - 42 = 0

use quadratic equation

x = -1.796, 7.796

You might be interested in
The sum of two numbers is 70 and their difference is 24.Find the two numbers
xxMikexx [17]
The two answers are 23 and 47. You would subtract 24 from 70 then divide by 2 which would equal 23 then add the 24 back to it which is 47. 23 plus 47 equals 70.
7 0
3 years ago
PLEASE ANSWER FIRST GETS BRAINLIEST
notsponge [240]

Answer: 28 red marbles


Step-by-step explanation:

Since there are in total 140 marbles and there are 5 red marbles, just simply divide 140 by 5 and you get your answer. 28 red marbles.

3 0
3 years ago
Read 2 more answers
Given that the triangles are similar, find the value of x. Find the length of NR.<br> S<br> T<br> 40<br> 60<br> R<br> 2x-2<br> 8
andrew-mc [135]

Answer:

NR = 12

Step-by-step explanation:

Given that both trjangles are similar, therefore, it follows that their corresponding side lengths would be proportional to each other. Thus:

\frac{40}{8} = \frac{60}{2x - 2}

5 = \frac{60}{2x - 2}

Cross multiply

5(2x - 2) = 60

10x - 10 = 60

10x = 60 + 10 (addition property of equality)

10x = 70

Divide both sides by 10

x = 7

✔️NR = 2x - 2

Plug in the value of x

NR = 2(7) - 2 = 14 - 2

NR = 12

6 0
3 years ago
The drama club spent $35 on decorations and $8.50 per person on food for a cast party. The total cost of the food
jenyasd209 [6]

Answer:

Option C) 27 people

Step-by-step explanation:

Let

x ----> the number of people

we know that

The cost of decorations ($35) plus the number of people (x) multiplied by the cost per person on food ($8.50) must be equal to $264.50

so

The linear equation that represent this situation is

35+8.50x=264.50

solve for x

Subtract 35 both sides

8.50x=264.50-35

8.50x=229.50

Divide by 8.50 both sides

x=229.50/8.50

x=27\ people

5 0
3 years ago
Plz help and explain plz
Serhud [2]

Answer:

4=????????????

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • There are 28 students in math class, 22 of the students passed a recent test. What percentage passed the test
    6·1 answer
  • Anybody know the answer?
    9·2 answers
  • At the museum you can buy 3 postcard for 5.40 6 postcards for 10.80 or 9 postcards for 16.20 What is the constant of proportiona
    6·1 answer
  • An acute angle θ is in a right triangle with cos θ = five sixths. What is the value of sec θ?
    6·2 answers
  • A garden is 6 2/3 feet long and 2 2/3 feet wide. Juan is putting a brick border around the garden. Each brick is 2/3 foot long.
    11·2 answers
  • Xy - 2xy + 3y - 6x y + 4xy
    8·1 answer
  • Log4 x + log4(x-12)= 3
    15·1 answer
  • The population growth of two towns over a period of five years is represented by the system of equations below, both algebraical
    9·1 answer
  • Please help Omg please please please I’m praying somebody helps
    8·1 answer
  • Find the measure of a negative angle coterminal with<br> 4л<br> 3<br> radians.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!