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
Leto [7]
3 years ago
10

When f(x)=-3, what is x?

Mathematics
1 answer:
Vika [28.1K]3 years ago
5 0
F(x) is another way of saying "y". Just that it's saying the "function of x". 
You might be interested in
The length of the longer leg of a right triangle is 4 inches more than twice the length of the shorter leg. the length of the hy
Serjik [45]

The Pythagorean's Theorem for our situation would look like this:

shortleg^2+longleg^2=hypotenuse^2

So let's call the short leg s, the long leg l and the hypotenuse h. It appears that all our measurements are based on the measurement of the short leg. The long leg is 4 more than twice the short leg, so that expression is l=2s+4; the hypotenuse measure is 6 more than twice the short leg, so that expression is h=2s+6. And the short leg is just s. Now we can rewrite our formula accordingly:

s^2+(2s+4)^2=(2s+6)^2

And of course we have to expand. Doing that will leave us with

s^2+4s^2+8s+8s+16=4s^2+12s+12s+36

Combining like terms we have

5s^2+16s+16=4s^2+24s+36

Our job now is to get everything on one side of the equals sign and solve for s

s^2-8s-20=0

That is now a second degree polynomial, a quadratic to be exact, and it can be factored several different ways. The easiest is to figure what 2 numbers add to be -8 and multiply to be -20. Those numbers would be 10 and -2. Since we are figuring out the length of the sides, AND we know that the two things in math that will never EVER be negative are time and distance/length, -2 is not an option. That means that the short side, s, measures 10. The longer side, 2s+4, measures 2(10)+4 which is 24, and the hypotenuse, 2s+6, measures 2(10)+6 which is 26. So there you go!

6 0
3 years ago
What is the midpoint of the segment shown below (-8,-7) (-7,-8)
svetlana [45]
Given two points (x₁,y₁) and (x₂,y₂) the midpoint would be:
M=((x₁+x₂)/2 , (y₁+y₂)/2)

In this case, the points would be: (-8,-7) and (-7,-8); therefore:
M=((-8-7)/2 , (-7-8)/2)=(-15/2,-15/2)

Answer: C.)  (-15/2 , -15,2)
6 0
3 years ago
What is the value of 2 + b(a? + 4) when a = 2 and b = 4?<br> A 22<br> B 34<br> C 2<br> D 48
lisov135 [29]

Answer: 26

Step-by-step explanation:

lets replace a and b with the numbers provided

2+4(2+4)=2+4(6)=2+24=26

4 0
3 years ago
Is 90 ten times as much as 0.9
Evgen [1.6K]
No it is 0.9x10= 9. 0.9x 100 would be 90
8 0
3 years ago
What is 12 2/3 X 2 1/2
vampirchik [111]

Answer:

31.67

Step-by-step explanation:

12 2/3 X 2 1/2

we begin by converting this into improper fractions,

= 38/3 * 5/2

= 95/3

= 31.67

8 0
3 years ago
Other questions:
  • The points in the table lie on a line. Find the slope of the line.
    9·1 answer
  • How many possible birth orders with respect to gender are possible in a family with four children? (For example, BBGG &amp; GGBG
    11·1 answer
  • Which of the following represents the set "all values of x greater than or equal to −1 and less than 2" in set builder notation?
    8·2 answers
  • Please Help! 15 points!
    12·1 answer
  • Helpppp Plzzzz ASAPppppppppp
    6·1 answer
  • Select the graph of the solution click until the correct graph appears lxl &gt; 5
    6·1 answer
  • Which statement is an example of the Identity Property of Multiplication?
    10·1 answer
  • a group buys 6 hot dogs and 3 hamburgers for a total of $27.75. the hamburgers cost $1.75 more than a hot dog. what is he cost o
    8·1 answer
  • Help me plis What is the exact measurement of the line segment? A. B. C. D.
    7·2 answers
  • Suppose u and v are functions of x that are differentiable at x=0 and that u(0)= 7,u'(0)=-5,v(0)= -1, v'(0)= -4.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!