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
Alinara [238K]
3 years ago
11

Solve a quadratic equation by factoring j2–30j=0

Mathematics
1 answer:
Lina20 [59]3 years ago
4 0

Answer:

j = 0  or j = 30

Step-by-step explanation:

j² - 30j = 0

Factorise j out of both terms on the left side.

j (j-30) = 0

Apply zero product rule.

j = 0  or j-30 = 0

Find the value of j.

j = 0  or j = 30

You might be interested in
Hello. Is there anyone out there who can answer this for me? I truly appreciate it.
Kryger [21]
A. -1

(1,2) and (2,1)
slope = 2 -1 / 1 -2
slope = 1 / -1
slope = -1
7 0
3 years ago
Your international diplomacy trip requires stops in thailand, singapore, hong kong, laos, and bali. how many possible itinerarie
Stells [14]
I would say there would be 5 itineraries ie one each for Thailand, Singapore, Hong Kong, Laos and Bali though for the countries Thailand and Laos there may be more than one stop so there would be a minimum of 5 itineraries. 
6 0
4 years ago
john is building a soccer table and wants it to be similar in size to a real soccer field. a full size soccer field is 336 feet
hichkok12 [17]
336/210 = x/ 2.5 ...
.
x = 4..
3 0
3 years ago
Read 2 more answers
I need help fast plss
Marysya12 [62]

Answer:

a = 1√6

b = -2

Step-by-step explanation:

Hello,

To solve this trigonometric problem, we need to convert this values into fractions

a).

Sin45° = 1/√2

cos30° = √3/2

Sin60° = √3/2

Sin45° / (cos30° + sin60°) = [(1/√2) ÷ (√3/2 + √3/2)]

(1/√2) ÷ (√3/2 + √3/2)

Add √3/2 + √3/2

1/√2 ÷ 2√3/2

1/√2 × 2/2√3

2/2√(2×3)

2/2√6

1/√6

b

Cos 180° = -1

Sin150° = ½

Tan135° = -1

2cos180° - 2sin150° - tan135°

(2 × -1) - (2×½) - (-1)

-2 - 1 + 1 = -2

3 0
3 years ago
Can someone help me with this question
zimovet [89]

Answer:

9 hours babysitting

3 hours landscaping

Step-by-step explanation:

Since Maya worked 3 times as many hours in babysitting than landscaping

so landscape hours is x and babysitting is 3x so

3(7)+11=

21+11=32

so each hours she works landscaping and for 3 hours of babysitting she earns $32

96/32=3 so

9 hours babysitting

3 hours landscaping

8 0
3 years ago
Other questions:
  • Solve the following equation <br> 3(2x+7)=9
    14·1 answer
  • John needs to make a scale drawing of his school building for art class. If the building is 256.25 meters long, and John scales
    10·1 answer
  • Find the sum of 2 4/5 + 1 7/15
    9·2 answers
  • Tom bought a soft drink for 3 dollars and 7 candy bars. He spent a total of 24 dollars. How much did each candy bar cost ? i jus
    7·1 answer
  • The annual rate of depreciation, x, on a car that was purchased for $9,000 and is worth $4,500 after 5 years can be found using
    9·2 answers
  • Pls answer The total charge on 8 particles is −56 units. All the particles have the same charge.
    15·1 answer
  • How do you factor 0 = 4x2 + 2x – 30?
    6·2 answers
  • 9.75 ÷ 1.3 I have done the math for this question about 100 times and cant figure it out
    7·2 answers
  • which set of ordered pairs in the form of (x, y) does not represent a function of x? (1 point) {(0, 2), (1, –1), (2, 3), (3, –2)
    11·1 answer
  • You have$200in a savings account and $100 in a checking account. Each week you add $50 to your saving account and $30 to your ch
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!