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
madreJ [45]
3 years ago
9

Mark is solving the equation 4x^2 = 12x - 9 using the quadratic formula.

Mathematics
1 answer:
alisha [4.7K]3 years ago
7 0
    First, modify the equation such that it is in the format of ax^2+bx+c=0, and you do this by performing inverse operations to 12x and -9 on one side of the equation such that they are moved to the other side of the equation. The numbers that are in the places of a, b and c in the quadratic are the values that may be used for a, b and c in the quadratic formula.
You might be interested in
Triangle ABC has angle measures as shown. (a) What is the value of x? Show your work. (b) What is the measure of angle C? Show y
Sladkaya [172]
All angles = 180 degrees
3(x-2)+35+52=180
distribute
3x-6+35+52=180
combine like terms 
3x+81=180
subtract 81 on both sides
3x=99
divide both sides by 3
x=33
plug in for x
3((33)+2)=
or 180-35-52=93
4 0
4 years ago
Read 2 more answers
Can you help me ? :)
Stels [109]
Hi! Answer choices A and C represent the same level of precision!

Hope I helped!
3 0
3 years ago
Hello My name es Liliana y arigato bye​
alexandr402 [8]

Answer:

?????.... hii erica herrrr

6 0
3 years ago
Read 2 more answers
A 33 33 -ft ladder leans against a building so that the angle between the ground and the ladder is .
I am Lyosha [343]

Question:

A 33 foot ladder leans against a building so that the angle between the ground and the ladder is 75º. How high does the ladder reach up the side of the building?

Round to 2 decimal places feet.

Answer:

H = 31.88

Step-by-step explanation:

The question is illustrated using the attachment as a sketch.

We have that

Ladder = 33ft

\theta = 75

Required

Determine how high the ladder is to the building

Represent the length of the ladder with L and how high the ladder is on the building with H.

The relationship between L, H and \theta is"

Sin\theta = \frac{H}{L}

Substitute values for L and \theta\\

Sin(75) = \frac{H}{33}

Make H the subject

H = 33 * Sin(75)

H = 33 * 0.9660

H = 31.88

<em>Hence, the height to which the ladder reaches is approximately 31.88ft</em>

8 0
3 years ago
Find the difference between the actual and estimated value of 55-21​
Airida [17]

Answer:

55-21=34

50-20=30

hope it helped :)

5 0
3 years ago
Other questions:
  • A store has apples on sale for $3:00 for 2 pounds.How many pounds of apples can you buy for $9?
    9·1 answer
  • Which of the following uses estimation to check 267 - 154 = 113
    11·2 answers
  • What other ways can you write down 23 dozens of thousands ?
    11·1 answer
  • Which of the following triangles can be proven similar through AA?<br> A)<br> B)<br> C)<br> D)
    14·1 answer
  • If y=-18 when x=6 find x when y=6
    13·1 answer
  • 0.0001203<br> Scientific notation
    6·2 answers
  • Find the quotient:<br><img src="https://tex.z-dn.net/?f=24.0552%20%5Cdiv%2012" id="TexFormula1" title="24.0552 \div 12" alt="24.
    5·1 answer
  • Find the percent of decrease from 12 home runs to 9 home runs. I need this FAST!
    5·1 answer
  • Amit’s school bus travelsat 36km/hr and Sushma’s school bus travels at 11 m/s. Whose school bus is faster ?
    6·2 answers
  • What is the equation of the line that passes through the point (4,-6) and has a slope of -5/2?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!