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
ycow [4]
4 years ago
15

20-x2/y-x for x=2 and y=6

Mathematics
2 answers:
Amanda [17]4 years ago
8 0

\text{Hello there!}\\\\\text{Plug in the numbers and solve:}\\\\\frac{20-x^2}{y-x}\\\\\frac{20-2^2}{6-2}\\\\\frac{20-4}{6-2}\\\\\frac{16}{4}\\\\=4\\\\\boxed{\text{Answer: 4}}

MaRussiya [10]4 years ago
7 0
Use substitution to solve the equation:
20-4/4.
4/4=1 so it simplifies to 20-1 which equals 19
You might be interested in
Which reason best describes why you can divide any number by 1,000
dezoksy [38]

Answer:

1 one

Step-by-step explanation:

just because

5 0
3 years ago
The diameter of a circle is 5.3 cm. What is the circumference
Julli [10]

Answer:

16.642cm

Step-by-step explanation:

Diameter of a circle = 5.3cm

Circumference of a circle = π(d)

                                          = π x 5.3

                                          = 3.14 x 5.3

                                          = 16.642cm

7 0
3 years ago
Use cramers Rule to solve the following system:
Jet001 [13]

Answer:

The solution to the system is x=1,y=-2 and z=-5

Step-by-step explanation:

Cramer's rule defines the solution of a system of equations in the following way:

x= \frac{D_x}{D}, y= \frac{D_y}{D} and z= \frac{D_z}{D} where D_x, D_y and D_z are the determinants formed by replacing the x,y and z-column values with the answer-column values respectively. D is the determinant of the system. Let's see how this rule applies to this system.

The system can be written in matrix form like:

\left[\begin{array}{ccc}5&-3&1\\0&2&-3\\7&10&0\end{array}\right]\times \left[\begin{array}{c}x&y&z\end{array}\right] = \left[\begin{array}{c}6&11&-13\end{array}\right]

Then each of the previous determinants are given by:

D_x = \left|\begin{array}{ccc}6&-3&1\\11&2&-3\\-13&10&0\end{array}\right|=199 Notice how the x-column has been substituted with the answer-column one.

D_y = \left|\begin{array}{ccc}5&6&1\\0&11&-3\\7&-13&0\end{array}\right|=-398 Notice how the y-column has been substituted with the answer-column one.

D_z = \left|\begin{array}{ccc}5&-3&6\\0&2&11\\7&10&-13\end{array}\right|=-995

Then, substituting the values:

x= \frac{D_x}{D}=\frac{199}{199}\\ x=1

x= \frac{D_y}{D}=\frac{-398}{199}\\ y=-2

x= \frac{D_z}{D}=\frac{-995}{199}\\ x=-5

3 0
3 years ago
Which two numbers have a least common multiple of 48?
tekilochka [14]
While neither 9 nor 8 are prime numbers, the factors of 9 are 3*3<span> and of 8 are 2*2*2. Since they share no factors in common, their product will be the least common multiple. (Multiples of 9 are 18, 27, </span>36<span>, 45, 54, 63, and 72; Multiples of 8 are </span>16<span>, </span>24,32<span>, </span>40<span>, 48, </span>56<span>, </span>64<span>, and 72).  

This is sited on google! </span>
6 0
3 years ago
Scott needs to get a vehicle. He decides to buy a new Ford F250. NYE Auto sells Scott the truck for $36,900. a. NYE Auto charges
rodikova [14]

Answer:

Car price= $36900

Sales tax 8.25%= $36900 x 8.25% = $3,044.25

Total fees= $1000

Cost of car= 36900+ 3044.25 +1000 = $40,944.25

3 0
3 years ago
Other questions:
  • There are three fences on a ranch measure 15/16 miles 7/8 miles and 7/16 mile which is the best estimate of the total length of
    6·1 answer
  • Juan bought a pickup truck for $16,000. He paid $1,000 down and borrowed the rest on a one year note at 16% interest. How much w
    9·1 answer
  • #1 Determine if AB is tangent to the circle centered at point C. Explain your reasoning. * PLZ HELP
    6·1 answer
  • You draw 2 cards from a deck. What’s the probability that one is red and the other is black
    8·1 answer
  • You are going on a road trip over a distance of 300030003000 kilometers with three friends. The car consumes 666 liters of gas p
    13·1 answer
  • You are constructing deck chairs that require 12 2/3 feet of lumber each. How many feet of lumber will you use to make 15 chairs
    10·1 answer
  • PLS HELP TIMEDDDDDD I NEED HELP
    5·1 answer
  • Are the triangles below similar?
    11·1 answer
  • (57x2:3)+32x450-[39-(4+2):2[+8=
    10·1 answer
  • If a = 1,b=2 and c=-3 find<br> a^b-c b^c-a c^a-b
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!