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
Deffense [45]
3 years ago
11

A number c is more than 20

Mathematics
1 answer:
frez [133]3 years ago
6 0

Answer:

c>20

Step-by-step explanation:

This says c is greater than 20.

You might be interested in
FOR A TEST!! HELP! Complete the similarity ratio for the similar triangles.
tatyana61 [14]

Answer:

add them up

Step-by-step explanation:

add 8 10 10 and 80 25 20

7 0
3 years ago
Helps pls help pls thank you so much
Juliette [100K]

Answer:

Increases, same, increases, decreases

Step-by-step explanation:

I mean just look at the graph

7 0
3 years ago
Suppose that
natka813 [3]

Answer:

I don’t know

Step-by-step explanation:

6 0
3 years ago
The polynomial $f(x)$ has degree 3. If $f(-1) = 15$, $f(0)= 0$, $f(1) = -5$, and $f(2) = 12$, then what are the $x$-intercepts o
Alex_Xolod [135]

Your calculator's cubic regression function can tell you the equation is

... f(x) = 2x³ + 5x² -12x = x(x +4)(2x-3)

The x-intercepts are -4, 0, +1.5.

_____

If you want to solve this "by hand", you can first of all recognize that since there is an x-intercept at 0, the cubic will only have three coefficients. That is, you can write the equation as

... f(x) = ax³ + bx² + cx

Substituting the given points (except (0, 0)) gives three linear equations in a, b, c.

... -a +b -c = 15 . . . . . for x=-1

... a + b + c = -5 . . . . for x=1

... 8a +4b +2c = 12 . . for x=2

adding the first two equations gives 2b=10, or b=5. Now, you can reduce the system to

... a + c = -10

... 4a +c = -4

Subtracting the first of these equations from the second gives 3a=6, or a=2. That tells you c=-12 (from a+c=10).

Then your equation is

... f(x) = x(2x² +5x -12)

Factoring by any of the usual techniques, or graphing, or using the quadratic formula will tell you the zeros (x-intercepts) are as above.

_____

Since the input values are sequential, you can also develop the function from differences of the output values. Those are 15, 0, -5, 12. First differences are -15, -5, +17. Second differences are +10, +22. The third difference is 12. Using the first of these differences in appropriate places in the interpolating polynomial formula, we have

... f(x) = 15 + (x+1)(-15 + (x)/2·(10 + (x-1)/3·(12))) = 2x³ +5x² -12x . . . . as above

4 0
2 years ago
The figure shows a gas tank in the form of a rectangular prism that is 40% full. How many more gallons of gas will it take to fi
Ira Lisetskai [31]

Answer:

10.8 gallons

Step-by-step explanation:

First change everything to inches:

2.75 ft = 33 in

1.5 ft = 18 in

Volume of tank = lwh = (33)(18)(7) = 4158 in³

The tank is 40% full, so only 60% is need to fill it. To find 60%, multiply 4158 by 0.6 = 2494.8 in³

Now find out how much 2494.8 in³ is in gallons:

231 in³ = 1 gallon

1 in³ = 1/231 gallons

2494.8 = (1/231)(2494.8) gallons = 10.8 gallons

7 0
3 years ago
Other questions:
  • Abby wants to enclose a rectangular area of 20 square feet to use as a garden. Write a function that could be used to find the g
    13·1 answer
  • Joe is building a fort for his little brother out of boxes. He is wondering how much room there will be inside the
    6·1 answer
  • What is the ratio of 9 gallons to 21 quarts?(convert the measurements)
    5·1 answer
  • Izzy is Iago's little sister. She is counting her coins. Izzy finds that she has three more quarters ($0.25) than she has dimes
    9·1 answer
  • In a certain classroom, the ratio of boys to girls is 2 to 1. If there are 39 students in the classroom, how many are boys?
    12·1 answer
  • The set of numbers that includes the whole numbers and their opposites is called the set of _____.
    15·2 answers
  • E/4+2f-3 when e=12 and f= 1/2
    9·1 answer
  • Need help Asap 100 point and Brainliest
    13·2 answers
  • What is a value of -12+35
    13·1 answer
  • Can you Explain your thinking.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!