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
STatiana [176]
3 years ago
15

Find x (Will mark brainliest if you are right)

Mathematics
1 answer:
Marizza181 [45]3 years ago
4 0

Answer:

Step-by-step explanation:

(-3x + 2)(45x + 21) + (-4x + 25) = 50

-135x^2 - 63x + 90x + 42 - 4x + 25 = 50

-135x^2 + 23x + 67 = 50

-135x^2 + 23x + 67 - 50 = 0

-135x^2 + 23x + 17 = 0

quadratic formula : x = (-b ± √b^2 - 4ac)/2a

a = -135, b = 23, c = 17

x = -23 ± √23^2 - 4(-135)(17) / (2(-135)

x = (-23 ±√9709 )/ -270

x = 23/270 ± 1 / 270√9709/270

x = 0.4501 or x = - 0.2798 <=== these answers are rounded

You might be interested in
In the triangle below, angle B measures 60° and BC is 18. What is the length of AC?
Gre4nikov [31]

Answer:

The Answer is D StartFraction StartRoot 3 EndRoot Over 9 EndFraction

Step-by-step explanation:

Just took the test one Edge, sorry its late.

6 0
3 years ago
Read 2 more answers
Literal equations 2x-3y=8 solve for y
vichka [17]
2x-3y = 8

Add 3y on both sides

2x = 8 + 3y

Subtract 8 on both sides

3y = 2x - 8

Divide 3 on both sides

y= \frac{2}{3}x- \frac{8}{3}
4 0
3 years ago
Read 2 more answers
A scientist is studying the characteristics of butterflies and collects a random sample of butterflies to measure. Information r
Alchen [17]

Answer:

I believe it's C. Wingspan is a continuous quantitative variable.

6 0
2 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!<br> a2 - 10ab + 3b^2
Zielflug [23.3K]
Let's simplify step-by-step.

<span><span><span>a2</span>−<span><span>10a</span>b</span></span>+<span>3<span>b2

</span></span></span>There are no like terms.

Answer:

<span>=<span><span><span>a2</span>−<span><span>10a</span>b</span></span>+<span>3<span>b<span>2</span></span></span></span></span>
5 0
3 years ago
The graph shows the numbers of quarts of yellow
allsm [11]

Answer:

Step-by-step explanation:

The given graph is a straight line graph. The y axis represents the number of quarts of yellow paint that is mixed. The x axis represents the number of quarts of red paint that is mixed. We would write the required equation in the slope intercept form. The slope intercept form equation of a straight line is expressed as

y = mx + c

Where

m represents slope

c represents y intercept.

Slope = (y2 - y1)/(x2 - x1)

Slope = (2 - 1)/(5 - 2.5) = 1/2.5

Slope = 0.4

The straight line cuts the y axis at y = 0

It means that c = 0

Therefore, the equation is

y = 0.4x

4 0
2 years ago
Other questions:
  • Using the given points, determine Δy. (-3, -5) and (0, 10) Δy = 3 Δy = 5 Δy = 13 Δy = 15
    7·1 answer
  • The length of a classroom is 34 feet. What is the measurement in yards and feet?
    10·1 answer
  • I need help please help
    10·2 answers
  • Find the difference of 128.04 - 8.287.
    13·1 answer
  • A bicycle is $240 and the sales tax is 9%. How much money is the tax?
    10·1 answer
  • Select the line segment<br> A.<br> B.<br> C.<br> D.
    6·2 answers
  • What are the coordinates of point A′ if triangle ABC is rotated 90° to produce the image triangle A′B′C′?
    10·1 answer
  • HEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEELP-
    15·2 answers
  • 2(x−3) = 2x + 15 how many solutions
    14·1 answer
  • Pls someone help me figure out how to do this!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!