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
mr_godi [17]
3 years ago
10

Helppppppppp please

Mathematics
1 answer:
IrinaK [193]3 years ago
4 0

Answer:

A, C

Step-by-step explanation:

Quadratic formula:

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

a is the coefficient of x², b is the coefficient of x and c is the constant when a second degree polynomial is equal to zero. (ax² +bx +c= 0)

x² +5x +11= 0

a= 1, b= 5, c=11

Thus, using the quadratic formula:

x =  \frac{ - 5± \sqrt{ {5}^{2}  - 4(1)(11)} }{2(1)}  \\ x =  \frac{ - 5± \sqrt{25 - 44} }{2}  \\ x =  \frac{ - 5± \sqrt{ - 19} }{2}

∴The answers are A and C.

You might be interested in
the breadth of a rectangular painting is 65 cm. its length is 137 cm more than its breadth. what is the area of the painting?​
Marysya12 [62]

Answer:

8,905cm²

Step-by-step explanation:

Area= Length × Breadth

=137cm × 65cm

= 8,905cm²

7 0
3 years ago
At a local track meet, RCMS won 3 blue ribbons than red ribbons. They also won 7 more yellow ribbons than red ribbons. RCMS won
erma4kov [3.2K]
Let no red ribbons=x
no. Of blue ribbons=x+3
No. Of yellow ribb9ns=x+7
Totsl ribbons=28
28=x+x+3+x+7
28=3x+10
3x=28-10
3x=18
X=18/3
X=6

No .of red ribbons=6
No. Of blue ribbons=x+3=9
No. Of yellow ribbons=x+7=13
5 0
3 years ago
Find the location of X, the midpoint of WY
Anni [7]

Answer:

X is the midpoint of the line wxy

4 0
2 years ago
I do not know if is a function or not. Please explain
bezimeni [28]
It is a function because in a function the x's do not repeat. So since there are no two numbers in the x column that are the same, yes it is a function.
8 0
3 years ago
If f(x)=4x^2+1 and g(x)=x^2-5 find (f+g)
lutik1710 [3]
Given:
f(x) = 4x² + 1
g(x) = x² - 5

Then
(f + g)(x) = 4x² + 1 + x² - 5
              = 5x² - 4

Answer: 5x² - 4
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the slope of a line with the equation y = 5x + 2?
    12·1 answer
  • You spend 1/2 of your allowance on Monday. On Tuesday, you spend 1/2 of the amount you have left. On Wednesday, you spend 1/2 of
    8·1 answer
  • What's 67997 times 8384883
    6·2 answers
  • Brine is a solution of salt and water. If a tub contains 50 pounds of 5% solution of brine, how much water (to the nearest tenth
    7·1 answer
  • The cost of floor material is $2840 and the installation cost $1.90 per square foot. If the total is $5120, find the area of the
    11·1 answer
  • Will give brainliest
    9·1 answer
  • What is the slope of this graph ?
    12·2 answers
  • PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
    11·1 answer
  • Help on this, please
    12·2 answers
  • At 2pm, the temperature was 20 degrees. By midnight, the temperature dropped by 24 degrees so what is the temperature at midnigh
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!