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
Pavel [41]
3 years ago
7

Solve for 25x2 + 9 = 30x

Mathematics
1 answer:
Irina-Kira [14]3 years ago
8 0

Answer: x=\frac{3}{5}

Step-by-step explanation:

Move all terms to one side.

25x^2+9-30x=0

Rewrite 25x^2+9-30x in the form a^2-2ab+b^2, where a=5x and b=3

(5x)^2-2(5x)(3)+3^2=0

Use the Square of Difference: (a-b)^2=a^2-2ab+b^2

(5x-3)^2=0

Take the square root of both sides.

5x-3=0

Add 3 to both sides.

5x=3

Divide both sides by 5.

x= 3/5

You might be interested in
Lindsey’s goal is to sell at least 35 candles at each of 15 craft fairs.
swat32

Answer: D.Lindsay makes 480 candles. She divides 480 by 15 to get 32. She does not make enough candles.

Step-by-step explanation: 24 times 20 is 480. That is how many she made all together.

4 0
3 years ago
Convert the angle 0=14pi/9 radians to degree
Levart [38]

Answer:

280 degrees.

Step-by-step explanation:

To convert radians to degrees we multiply by 180/pi:

angle O = 14pi/ 9 * 180 / pi

=  14*180 / 9

=  280 degrees.

6 0
3 years ago
PLEASE HELP PICTURE IS SHOWM
butalik [34]
Angle XYZ = 1/2 (Arc VW - Arc XZ)
2*35 = 84 - Arc XZ
Arc XZ = 84 - 70 = 14°

Therefore, C is the correct answer.

Good luck.
4 0
3 years ago
Give me 10 reasons why penguins are cute will give Brian list and 50 points
Effectus [21]

Answer:

becuz their colour is black and white. b and w is so cute

5 0
3 years ago
Given: △FKL, FK= a<br> m∠F=45°, m∠L=30°<br> Find: FL
mr Goodwill [35]

The sum of angles of a triangle is 180°, so m∠K = 180° -45° -30° = 105°.

The Law of Sines tells you

... FL/sin(∠K) = FK/sin(∠L)

Solving for FL, we get

... FL = FK·sin(∠K)/sin(∠L)

... FL = a·sin(105°)/sin(30°) = a·sin(105°)/(1/2)

... FL = 2a·sin(105°) ≈ 1.93185a

6 0
3 years ago
Other questions:
  • How do you slove 57 × 2000 with multiplying with powers of ten
    12·1 answer
  • sam is flying a kite. the length of the kite string is 80 meters, and it makes an angle of 75° with the ground. the height of th
    9·2 answers
  • AB is the perpendicular bisector of XY. Point P is the midpoint of XY. Which of the following are true?
    12·1 answer
  • One hundred middle school students take a survey that asks them about their fruit preferences. Thirty-seven out
    12·2 answers
  • What is 5 1/4 × 3 1/2 × 3=
    8·1 answer
  • A tree casts a 25 foot shadow. At the same time of day, a 6 foot man standing near the tree casts a 9 foot shadow. What is the a
    6·2 answers
  • Help please. For the hign school basketball game, it costs $8 for every 4 tickets. Complete the table below showing the cost and
    5·1 answer
  • A physicist examines 23 sedimentary samples for mercury concentration. The mean mercury concentration for the sample data is 0.0
    10·1 answer
  • Below are two parallel lines with a third line intersecting them
    9·1 answer
  • Help meeeeee please please
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!