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
skad [1K]
3 years ago
12

Does the system have no solution?​

Mathematics
1 answer:
kvv77 [185]3 years ago
6 0

Answer:

\mathrm{A)\:}-6

Step-by-step explanation:

Notice that in the second equation, the coefficient of y is 2 times greater than in the first. Therefore, by making the coefficient of x in the second equation 2 times greater than in the first, it's impossible to only isolate one variable.

Therefore, when a=-3\cdot 2=\fbox{-6}, there are no solutions to this system.

You might be interested in
34699 to nearest ten thousand
xz_007 [3.2K]

Ones place: 9

Tens place: 9

Hundreds place: 6

Thousands place: 4

Ten thousands place: 3

Which is 34,699

Now that we know 3 is in the ten thousand's place.

So then go from 3, and jump too 4. If the number is higher then 5, the 3 would become a 4. If the number is lower then 5, 4 would become a 0 and so will the rest of the number's too the right.

34,699 ---> 30,000

That being said, the answer is 30,000!

I hope this help's! :)

-LizzyIsTheQueen

8 0
3 years ago
Which of the following best describes the relationship between (x + 1) and the polynomial x2 - x - 2?
Viefleur [7K]

Answer:

C

Step-by-step explanation:

to factor x² - x - 2

consider the factors of the constant term which sum to give the coefficient of the x-term.

the factors are - 2 and + 1 since - 2 × 1 = - 2 and - 2 + 1 = - 1

x² - x - 2 = (x - 2)(x + 1), hence (x + 1) is a factor


3 0
3 years ago
Read 2 more answers
A group of 120 people touring Europe includes 45 people who speak French, 42 who speak Spanish, and 50 who speak neither languag
lianna [129]

Answer : P(\text{this group will speak both French and Spanish})=0.141666666

Explanation:

Since we have given that

n(U) = 120, where U denotes universal set ,

n(F) = 45, where F denotes who speak French,

n(S) = 42 , where S denotes who speak Spanish,

n(F∪S)' = 50

n(F∪S) = n(U)-n(F∪S) = 120-50 = 70

Now, we know the formula, i.e.

n(F∪s) = n(F)+n(S)-n(F∩S)

⇒  70    = 45+42-n(F∩S)

⇒ 70  =  87- n(F∩S)

⇒ 70-87 = -n(F∩S)

⇒ -17 = -n( F∩S)

⇒  17 = n(F∩S)

P(\text{this group will speak both French and Spanish})= \frac{17}{120}\\P(\text{this group will speak both French and Spanish})=0.141666666

3 0
2 years ago
900 is 4 1/2% of what?
Svet_ta [14]
Simple, first change the 4.5% into 0.045

Thus,

900=0.045*n

900/0.045=0.045n/0.045

20,000=n

Thus, your answer is 20,000.
3 0
2 years ago
Read 2 more answers
Khan Academy’s question
prisoha [69]

Answer:

Black Screen so sorry

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Which is a good comparison of the estimated sum and actual sum of 7 holes 9+/12<br> holes and 11 12s
    8·1 answer
  • Expand and simplify : A) (x+7)(x+10). B) (X-3) (X-9)
    11·1 answer
  • (1.2) to the third power (Explained)
    12·1 answer
  • Rite 18.725 as a mixed number in simplest form.
    10·1 answer
  • the country recreation department cleared a 3/4 mile long walking trail in Washington park. if the trail will be marked every 1/
    14·1 answer
  • Într-un cimitir există 7 chiparoși și 288 tufe de tuia. La fiecare mormânt există cel puțin o tufă de tuia. Numărul celor cu dou
    8·1 answer
  • a landscaping store charges 12.50 per pound of gravel if you purchase 3 pounds or less. any gravel you purchase beyond the first
    12·1 answer
  • Jenna's class brought in 40 pieces of fruit for a celebration and 18 pieces of fruit were eaten. What percentage of the fruit wa
    8·2 answers
  • What do i do with the negative? i completely forgot <img src="https://tex.z-dn.net/?f=%5Cfrac%7B-yx%5E%7B3%7Dz%5E%7B5%7D%20%7D%7
    6·1 answer
  • machine a pops 12.75 oz of popcorn in 3 minutes machine b pops 10 oz of popcorn in 4 minutes which machine pops more popcorn in
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!