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
levacccp [35]
3 years ago
12

Evaluate the expression 2x-xy if x= -1/2 and y=8

Mathematics
2 answers:
Gnom [1K]3 years ago
6 0

Answer:

3

Step-by-step explanation:

2x-xy

Let x = -1/2 and y = 8

2(-1/2) - (-1/2)(8)

Multiply

-1 - (-4)

Subtracting a negative is like adding

-1+4

Add

3

vladimir1956 [14]3 years ago
5 0

Answer:

3

Step-by-step explanation:

2x-xy

2(x)-(x)(y)

2(-1/2)-(-1/2)(8)

-1 - (-4)

-1 + 4

3

You might be interested in
plant a is 5 centimeters tall growing at the rate of 3 centimeters a month. plant b is 4 centimeters tall
Maslowich
What are u asking for
7 0
3 years ago
What is an equation in point line slope form of the line that passes through the point (4,-1) and had slope 6
zimovet [89]

Answer:

y+1=6(x-4)

This is if you want it in point slope for,.

Step-by-step explanation:

Then, if you simplify it.

y+1=6x-24

y=6x-25

Now, it is in slope intercept form.

5 0
3 years ago
Sarah said that 0.000 01 is bigger than 0.001 because the first number has more digits to the right of the decimal point. Is Sar
Gre4nikov [31]
I DONT UNDERSTAND YOUR QUESTION
7 0
3 years ago
A machine makes errors in a certain operation with probability p. There are two types of errors. The fraction of errors that are
Crank

Answer:

Step-by-step explanation:

The concept of binomial probability is applied.

Mathematically from binomial probability ; (nCx)px(1−p)(n-x)

The detailed step by step is as shown in the attachment

7 0
3 years ago
If an object is shot with an initial velocity of 160 ft/sec, what is the smallest initial angle will you need to obtain a horizo
MrRissso [65]
To solve the question we shall use the formula for the range given by:
Horizontal range, R=[v²sin 2θ]/g
plugging in our values we get:
500=[160²×sin 2θ]/10
5000=160²×sin 2θ
0.1953=sin 2θ
thus:
arcsin 0.1953=2θ
11.263=2θ
hence:
θ=5.6315°~5.63
3 0
4 years ago
Other questions:
  • Find the coordinates for x. if y is (-10,5)
    7·1 answer
  • Which of the following polynomials is the expansion of (1/2x-y)^4
    8·1 answer
  • the highest point in the state of Louisiana is Driskill Mountain. It rises 535 feet above sea level. Write the elevation of Dris
    9·2 answers
  • There are two different maps of ohio. The scale on the first map is 1 cm to 10 km. The distance from cleveland to clncinnati is
    14·1 answer
  • Natalia is writing a recursive formula to represent the sequence. 8, 12, 18, 27, ... What value should she use as the common rat
    11·2 answers
  • In △ABC,a=14, b=17, and c=22. Find m∠A.
    8·1 answer
  • The total distance from earth to the sun would be written as 1.0346 x 1022 7 points
    9·1 answer
  • Mr. Anderson wrote (7x9)x10 the power of 3 on the board. What is the value of that expression?
    5·2 answers
  • Wanna know ur iready math scores?
    12·1 answer
  • There is a square parking lot at the grocery store. The diagonal of the parking lot measures 8√2 ft. Find the perimeter of the p
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!