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
trapecia [35]
3 years ago
10

Helppppppppppppppppppppppppp

Mathematics
1 answer:
Oksana_A [137]3 years ago
7 0

Answer:

Option A

Step-by-step explanation:

We know that for an eqn. ax^{2} +bx+c=0 , the quadratic formula is =

x = \frac{-b+\sqrt{b^{2}-4ac } }{2a}  or \frac{-b-\sqrt{b^{2}-4ac } }{2a}

So using quadratic eqn. for x^{2} -6x-5=0

x =\frac{-(-6)+\sqrt{(-6)^{2}-4*1*(-5) } }{2*1}or\frac{-(-6)-\sqrt{(-6)^{2}-4*1*(-5) } }{2*1}

=> x = \frac{6+\sqrt{36+20} }{2} or\frac{6-\sqrt{36+20} }{2}

=>x = \frac{6+\sqrt{56} }{2} or\frac{6-\sqrt{56} }{2}

You might be interested in
7 1/2÷3/4 Please help this mom out!!
gavmur [86]

Answer:

10

Step-by-step explanation:

give me brainly

am i correct? let me know

7 0
3 years ago
Divide.
zzz [600]
The answer is B. 5/6
7 0
3 years ago
Simplify 3^2 x 2^4 x 3^3 x 2
alex41 [277]
3²×2^4 ×3³×2=
3^5×2^5=
243 × 32 = 7776

3 0
3 years ago
Answer please !! Due in 45 minutes m
weqwewe [10]

Answer:

(-3,3)

Step-by-step explanation:

Using elimination:

Multiply the first equation by 8 and the second by 5 which equals

40x+56y=48

-40-60y=-60

Now you add them together

40x+(-40x)=0 so that crosses out

56y+(-60y)= -4y

48+(-60)=-12

You now have -4y=-12

Divide by -4

y=3

Now plug in y to any of the equations

5x+7(3)=6

5x+21=6

Subtract 21 from both sides

5x=-15

Divide by 5

x=-3

Your final solution is (-3,3)

5 0
2 years ago
ted is twice his sister's age and three years younger than joe. ted's sister is half of a century plus ten. how old is ted how o
Alex17521 [72]

Answer:

teds sister is 60 years old, ted is 120 some how, and joe is 123.

Step-by-step explanation:

half of a century is 50 because a century is 100 years and plus 10 years equals 60 and 60 times 60 equals 120 and 120 plus 3 years equals 123 so that's how I got the answers. At first this answer looks complicated you just have to read the question carefully.

4 0
2 years ago
Other questions:
  • In the figure, if the measure of 21 = 112°, what's the measure of 212?
    10·2 answers
  • How much is 1 foot line of quarters worth
    7·1 answer
  • A coastline recedes at a rate of 3cm per year. How much of the coastline dissappears after 4 years?
    7·1 answer
  • Solve this equation. Enter your answer in the box.<br> 13(y+7)=3(y−1).
    10·2 answers
  • Brooklyn had 4.52 inches of rain in April. In May it rained 5.23 inches and 3.41 inches of rain in June. How much rain did the c
    13·1 answer
  • Cari x dari sudut diberikan<br> -<br> Find x from the given angles
    6·1 answer
  • 12. Find the area of shaded portion in<br>D 11 cm<br>C С<br>13.5 cm<br>A<br>B<br>15 cm​
    15·2 answers
  • If two friends invested in a ratio of 2:3 and earned a profit of Rs. 25,000 on their investments, then the smaller share of the
    8·1 answer
  • Would someone mind helping me? 20 points for a great and correct answer!<br> Thank you!
    7·2 answers
  • At Everyday Donuts, 3 of the last 6 donuts sold had sprinkles. Considering this data, how many of the next 10 donuts sold would
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!