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
serious [3.7K]
2 years ago
14

Please help! I don't know how​

Mathematics
1 answer:
omeli [17]2 years ago
7 0

Answer:

study more so you can understand

You might be interested in
Find the length of the chord made by 3x2 - y2 = 3 and y + x – 5 = 0.
MArishka [77]

Answer:

The correct answer is "9√2 units".

Step-by-step explanation:

The given equations are:

⇒ 3x^2-y^2=3...(equation 1)

⇒ y+x-5=0...(equation 2)

According to the 2nd equation, we get

⇒ y+x-5=0

⇒              y=5-x

On substituting the value of "y" in the 1st equation, we get

⇒  3x^2-y^2=3

     3x^2-(5-x)^2=3

     3x^2-(25+x^2-10x)=3

     2x^2+10x-28=0

On taking common, we get

     x^2+5x-14=0

On applying factorization, we get

     x^2+7x-2x-14=0

   x(x+7)-2(x+7)=0

           (x+7)(x-2)=0

                        x+7=0

                              x=-7

or,

                         x-2=0

                                x=2

Now,

The points are:

(-7, 12) = (x₁, y₁)

(2, 3) = (x₂, y₂)

By using the distance formula, the length of chord will be:

= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

On substituting the values in the above formula, we get

= \sqrt{(2-(-7))^2+(3-12)^2}

= \sqrt{(9)^2+(-9)^2}

= \sqrt{81+81}

= 9 \sqrt{2} units

8 0
3 years ago
Malik uses an app on his phone to track how far he rides his bike. Yesterday, he biked a new trail in a total of 57.5 minutes, i
cestrela7 [59]

Answer: Malik uses an app on his phone to track how far he rides his bike. Yesterday, he biked a new trail in a total of 57.5 minutes, including a 2.5-minute water break. The app notified Malik that he rode 10 miles. What was Malik's average pace while biking?

8 0
3 years ago
which number has one digit that represents 10 times the value of the digit to it's right? 375,595, 545,150 and 378,658
Artyom0805 [142]

It would be 375,595.

3 0
3 years ago
Read 2 more answers
All Five of these Questions = 90 Points. Need done ASAP.
vichka [17]

Answer:

ma ma ھگدفسخ टगाई samje ke hamreبھا मे

hoho gana ga

4 0
3 years ago
What is a square root?
Vlad [161]
Number that produces a specified quantity when multiplied by itself
Example : “ 7 is a square root of 49 “ BECAUSE 7x7=49
6 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify 3x + 2(6x - 5)
    15·1 answer
  • Annie bakes cookies and cupcakes in a ratio of 2 to 7 for her gift boxes. Her school needs 36 desserts to sell in a bake sale. H
    12·1 answer
  • A sidewalk tile measures 4 feet by 5 feet. How many square inches are in its area?
    6·2 answers
  • Two software companies are planning to launch a learning application on the same day.
    15·1 answer
  • A private club was reduced by 27 members in 3 weeks. Its size changed by the same number of members each week. What was the chan
    8·1 answer
  • Can someone please help me on Carnegie??
    8·1 answer
  • Pat thinks of a number that is greater than 4 and less than 5.He doubles the number
    11·1 answer
  • Evaluate the expression. (343)^-1/3​
    15·1 answer
  • The product of five and a number, b<br> Please help
    8·1 answer
  • Mabel needs to order 8,742 binder clips for an upcoming conference. If the binder clips come in boxes of 47, how many boxes shou
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!