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
IRISSAK [1]
2 years ago
10

Use mathematics to calculate

d="TexFormula1" title=" Ilan \ ang \ asawa \ ni \ Sheryl " alt=" Ilan \ ang \ asawa \ ni \ Sheryl " align="absmiddle" class="latex-formula">
4x² - 12x + 9 = 0​
Mathematics
1 answer:
Anestetic [448]2 years ago
8 0

~~~~~~~4x^2-12x+9=0\\\\\implies (2x)^2-2 \cdot 2x \cdot 3+3^2 = 0\\\\\implies (2x-3)^2 = 0\\\\\implies 2x -3 = 0\\\\\implies x =\dfrac 32

You might be interested in
I’m not understanding what to do here
AVprozaik [17]

Answer:

27/50 is the answer.

Step-by-step explanation:

5 0
3 years ago
Automobile racing, high-performance driving schools, and driver education programs run by automobile clubs continue to grow in p
yuradex [85]

Answer:

Step-by-step explanation:

Hello!

Given the variables

X₁: Weight of a safety helmet for racers

X₂: Price of a safety helmet for racers

Note, there is n= 17 observed values for each variable so for all calculations I'll use this number and disregard the 18 mentioned in the text.

a) Scatterplot in attachment.

b) If you look at the diagram it seems that there is a negative linear regression between the price and the weight of the helmets, meaning, the higher the helmet weights, the less it costs.

c) The estimated regression equation is ^Yi= a + bXi

n= 17; ∑Y= 6466; ∑Y²= 3063392; ∑X= 1008; ∑X²= 60294; ∑XY= 367536

Y[bar]= 380.35; X[bar]= 59.29

b= \frac{sumXY-\frac{(sumX)(sumY)}{n} }{sumX^2-\frac{(sumX)^2}{n} } = \frac{367536-\frac{1008*6466}{17} }{60294-\frac{(1008)^2}{17} } = -30.18

a= Y[bar]- bX[bar]= 380.35-(-30.18)*59.29= 2169.77

The estimated regression equation for the price of the helmets as a function of their weight is:

^Yi= 2169.77 -30.18Xi

I hope it helps!

8 0
3 years ago
How many solutions does the following equation have? 2x+8=2(x+3)
wolverine [178]

Answer:

0

Step-by-step explanation: 2x+8=2x+6 --> 8=6

8 cant be equal to 6 so this equation is wrong and has no solution.

3 0
2 years ago
How would I solve 3+x=9?
kotegsom [21]

Answer:

x=6

Step-by-step explanation:

3+x=9

-3    -3

x=6

5 0
3 years ago
Read 2 more answers
(6x^3+13x^2+8x+11)/(3x+5)
makkiz [27]
That’s the answer just make it into a fraction it is already simplified
8 0
3 years ago
Other questions:
  • The temperature of a point $(x,y)$ in the plane is given by the expression $x^2 + y^2 - 4x + 2y$. what is the temperature of the
    9·1 answer
  • What is the measurement of
    13·2 answers
  • When graphed, the circle with equation
    9·1 answer
  • Question 1: The management of a grocery store has kept a record of bad checks received per day for a period of 200 days. The dat
    10·1 answer
  • Answer correctly for a brainliest I promise
    8·1 answer
  • What is the quotient of 0.72 ÷ -0.9
    13·2 answers
  • PLEASE HELP!!!!!The table below shows the data for a random sample of fish that were collected from and later released into a la
    10·1 answer
  • I need help please Will mark brainliest. Thank you
    7·1 answer
  • URGENT QUESTION.
    12·1 answer
  • The points N, O, P and Q all lie on the same line segment
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!