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
slamgirl [31]
3 years ago
13

Evaluate 2x - y + 4z, if x = 1, y = 2 and z = -1

Mathematics
1 answer:
lidiya [134]3 years ago
5 0

2 x 1 - 2 + 4 x -1 =

the answer is -4.

You might be interested in
To make fruit punch for a party, Alison used 3 quarts of pineapple juice and 2 gallons if orange juice. There are 4 quarts in a
REY [17]
Since we know there are 3 quarts of pineapple juice and 2 gallons of orange juice the first thing you need to do is convert the units of the orange juice to quarts.
If there are 4 quarts in a gallon and we have 2 gallons then we have 8 quarts (4*2)
So 3 quarts of pineapple juice to 8 quarts of orange juice.
The ratio would be <u><em>3:8</em></u>
3 0
3 years ago
Read 2 more answers
0.3434343434<br> What is this as a fraction
nlexa [21]

Answer:

34/99

Step-by-step explanation:

4 0
3 years ago
What value of x is in the solution set of 2(4+2x)&gt;5x+5
Serggg [28]

Answer:

x < 3

Step-by-step explanation:

2(4+2x)>5x+5

Distribute

8 +4x > 5x+5

Subtract 4x from each side

8 +4x-4x > 5x-4x+5

8 > x+5

Subtract 5 from each side

8-5 > x+5-5

3 > x

X must be less than 3

7 0
3 years ago
Please help me! Thank you!
kow [346]

Answer:

false

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Write the equation of the line that
zlopas [31]

Answer:

y=-1/2x+2

Step-by-step explanation:

First, the slope of perpendicular line have negative reciprocal coefficients. In this case the coefficient is 2, The reciprocal of 2 is 1/2 and the negative of 1/2 is -1/2. So x will have a coefficient of -1/2.

Second, find the equation with a slope of -1/2 that passes through (-2,3). There are a few ways to do this. I like to plug the given x value into the expression -1/2x, so -1/2(-2) which equals positive 1 and for the line to pass through the point (-2,3) you need to add 2. So: y=-1/2x+2

8 0
2 years ago
Other questions:
  • How many solutions does this equation have? 9(w-9)-2=-7w+7(w-8)
    15·1 answer
  • Jessica is at a charity fundraiser and has a chance of receiving a gift. The odds in favor of receiving a gift are 5/12. Find th
    11·1 answer
  • Bethany lives in London.
    14·1 answer
  • randall had 3600 loan from the bank for a new car . the interest rate is 6% per year . how much simple interest will they pay if
    5·1 answer
  • Directions: Apply me u<br>you answer should be w<br>1) 12. 12² =​
    15·1 answer
  • How do you get -4 to 4
    12·1 answer
  • Enter the number that makes the equation true.​
    7·2 answers
  • -1/3+1/2 simplified??
    15·1 answer
  • Surface Area of Prisms
    11·1 answer
  • Will give Brainliest What is the graph of the equation y=-1/4+2?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!