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
Alenkinab [10]
3 years ago
13

20. solve the equation by completing the square. round to the nearest hundredth if necessary. x^2+10x=18 a. -11.56, 1.56 b.11.56

, 1.56 c.-11.56, -1.56 d. 11.56, -1.56
Mathematics
1 answer:
larisa86 [58]3 years ago
8 0

The answer was A but  i am found

1.557, -11.557

and hope that helps you

You might be interested in
Please help, i forgot which was which... (positive or negative coefficient)
Vesna [10]
<h3>Answer:  Negative</h3>

Reason:

The template y = ax^2+bx+c applies to any quadratic to graph out a parabola. The coefficient for the x^2 term is 'a', and it solely determines whether the parabola opens upward or downward.

If 'a' is negative, then the parabola opens downward. The way to remember this is that 'a' being negative forms a negative frown.

On the other hand if 'a' is positive, then it forms a positive smile, and the parabola opens upward.

In this case, the points are fairly close to a parabola opening downward. This means 'a' is negative and a < 0.

8 0
2 years ago
In a year group there 100 boys and 140 girls. Write as a ratio the number of boy to the number of girls. Give the answer in the
expeople1 [14]

no. of boys : no.of girls

100 : 140

to get the simplest ratio you gotta divide both with a common factor

Because both 100 and 140 share a common factor of 20

the simplest ratio will be

100/20 : 140/20

5:7

5:7 is the simplest ratio

5 0
2 years ago
Read 2 more answers
Find the number that makes the ratio equivalent to 2:3.<br> 24: BLANK
Vitek1552 [10]

Answer:

equivalent ratio for this question is

4:6:48

5 0
2 years ago
Read 2 more answers
Carlos made a wooden box in his scout group. The box was 8 inches high, 11 inches wide and 15 inches long. Which expression will
Mamont248 [21]

Answer:

D. 8 x 11 x 15

Step-by-step explanation:

lenght times width times height  is how you find volume

8 0
3 years ago
Read 2 more answers
1. Given the following relation, determine the inverse relation.
gayaneshka [121]

Answer:

1. a

2. f^{-1} (x)=\frac{x}{2} +2

Step-by-step explanation:

1. Since there is one value of y for every value of x in (−1,0),(−4,5),(3,2),(−3,5), this relation is a function.

2. To find the inverse, interchange the variables and solve for y.

f^{-1} (x)=\frac{x}{2} +2

5 0
2 years ago
Other questions:
  • Which of the following graphs shows the solutions to the equations
    13·1 answer
  • For every pound a company spends on advertising, it spends £0.37 on its website. Express the amount spent on advertising to its
    7·1 answer
  • What is the positive square root of 4?
    11·1 answer
  • Lucy has 8 toy cars. Tim has t times as many toy cars as Lucy. Write an expression that shows how many toy cars Tim has.
    5·1 answer
  • How many 3/4 foot pieces of string can be cut from a 6 foot piece of string?
    5·2 answers
  • What is the volume of a sphere with a radius of 1 foot? (Use 3.14 for pi)
    12·2 answers
  • Plsssssssssssssssssssssssss Help Asap
    5·1 answer
  • Zero is not a real number True or <br>False​
    11·1 answer
  • -3•2•a+5(-7b)+(12•c•4)
    15·1 answer
  • How do i solve and graph 3/4x + 8 &lt; 41 on a number line
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!