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
dem82 [27]
2 years ago
10

What are the solutions to the equation 3x2 + 15x = 18?

Mathematics
1 answer:
jok3333 [9.3K]2 years ago
6 0

3x {}^{2}  + 15x = 18

<h2>Divide the entire thing by 3</h2>

x {}^{2}  + 5x = 6

x {}^{2}  + 5x - 6 = 0

<h2>You can find the roots by using the quadratic formula or by using the form x²-Sx+P</h2>

let \:  \alpha \:  and \: \beta  \: be \: the \: roots

<h2>Two numbers whose sum is -5 and product is -6</h2><h2>-6 and +1</h2>

<h2>Your answer is B</h2>

You might be interested in
Determine which prostulate or theorem can be used to prove
REY [17]

Answer:

S.A.S

<em>EXPLANATION:</em>

SQ=SQ(Common side)

<Q=<Q. (Common angle)

PQ=RQ.

Hope u like it.

<em>PLZ MARK ME AS BRAINLIEST </em><em>♥️</em><em>♥️</em>

3 0
3 years ago
PLEASE HELP
xenn [34]

Answer:

perimeter is  4 sqrt(29) + 4pi  cm

area is 40 + 8pi cm^2

Step-by-step explanation:

We have a semicircle and a triangle

First the semicircle with diameter 8

A = 1/2 pi r^2 for a semicircle

r = d/2 = 8/2 =4

A = 1/2 pi ( 4)^2

  =1/2 pi *16

  = 8pi

Now the triangle with base 8 and height 10

A = 1/2 bh

  =1/2 8*10

  = 40

Add the areas together

A = 40 + 8pi cm^2

Now the perimeter

We have 1/2 of the circumference

1/2 C =1/2 pi *d

         = 1/2 pi 8

        = 4pi

Now we need to find the length of the hypotenuse of the right triangles

using the pythagorean theorem

a^2+b^2 = c^2

The base is 4 ( 1/2 of the diameter) and the height is 10

4^2 + 10 ^2 = c^2

16 + 100 = c^2

116 = c^2

sqrt(116) = c

2 sqrt(29) = c

Each hypotenuse is the same so we have

hypotenuse + hypotenuse + 1/2 circumference

2 sqrt(29) + 2 sqrt(29) + 4 pi

4 sqrt(29) + 4pi  cm

3 0
2 years ago
Read 2 more answers
3.41 rounded to the nearest tenth please help
horrorfan [7]
Your answer would be 3.4

Anything under 5 it stays the same and anything over 5 it goes up one
5 0
2 years ago
Read 2 more answers
Decrease £16855.21 by 13.5% <br> Give your answer rounded to 2DP
Luda [366]

Answer yes

Step-by-step explanation:

79+9

5 0
3 years ago
Read 2 more answers
Bus going at 30 mph for 7 hours
Sergeu [11.5K]
Well, not specific. But after 7 hour the bus will be 210mi away
3 0
3 years ago
Read 2 more answers
Other questions:
  • Determine whether a scatter plot of the data for the following situation might show a positive, negative, or no relationship. Ex
    14·2 answers
  • Complete this statement 20ax^2+25ax+15a=5a( )
    13·1 answer
  • Which sets include only like terms? Choose all answers that are correct.
    6·1 answer
  • What are the domain and range of the function?
    6·2 answers
  • Can someone help me with these problems? Please!
    14·1 answer
  • The sum of two numbers is 67. The larger number is 4 more than 2 times the smaller. What are the two numbers?
    9·1 answer
  • Find the value of y.<br> Please help :(
    5·1 answer
  • 1.
    11·1 answer
  • Please help me with this problem. I'm kind of stuck and don't know what to do.
    8·1 answer
  • 1. How many small squares are in Step 10?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!