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
scZoUnD [109]
3 years ago
5

Find the product. -1/2 x -8

Mathematics
1 answer:
exis [7]3 years ago
6 0
Recall that negative * negative = positive

so 1/2  * -8  = 4
You might be interested in
Please help me ASAP! Quadrilateral WXYZ is on a coordinate plane. Segment XY is on the line x - y = -3, and segment WZ is on the
Kay [80]
<h2>Hello!</h2>

The answer is:

B: They have the same slope of 1 and are, therefore, parallel.

<h2>Why?</h2>

To solve the problem, we must remember that the slope of a line is represented by the coefficient of the linear term (x) or variable.

The coefficient is the number before the variable, for example:

3X=3*X

The coefficient of the example is 3.

So, we are given the lines:

First:

x-y=-3\\\\y=x+3

We can see that the coefficient of the linear term is equal to 1.

Second:

x-y=1\\\\y=x-1

We can see that the coefficient of the linear term is equal to 1.

Hence, we have that both functions have an equal slope of 1, so, the lines are parallel.

The correct option is:

B: They have the same slope of 1 and are, therefore, parallel.

Have a nice day!

Note: I have attached a picture for better understanding. The first function is represented by the red line, and the second function is represented by the blue line.

7 0
3 years ago
Use quadratic regression to find a
IRINA_888 [86]
(1,3) is one of the coordinates
4 0
3 years ago
131. A patient in a hospital needs to maintain a certain amount of a medication in her bloodstream to fight an infection. Suppos
Nikitich [7]

Answer:

Y=3n+10

Step-by-step explanation:

Hello,

The first thing we should know is that this exercise is modeled by equating a straight line, which is Y = mx + b

where Y, is the value in milligrams of the patient's dose, b is the intercept with the Y axis and x is the number of hours that pass, and m is the slope, taking into account the above we infer the following equation

Y=mn+b

Now what we do is find every 2 points of the line using the problem data, in order to find the complete equation and the slope,

N1=0   Y1=10mg

N2=1     Y2=10mg+4mg=14mg

b is the value of Y when n = 0 therefore b = 10

Now we remember the equation of the slope

m=\frac{Y2-Y1}{N2-N1} =\frac{14-10}{1-0} =4mg/hour

the ecuation is

Y=4n+10

Finally, the problem explains that the body loses 25% of the medication, therefore we multiply the equation by the 75% that remains in the body taking into account that the initial dose for N = 0 must be 10mg.

Y=0.75(4n+\frac{10}{0.75} )=3n+10\\\\

final ecuation

Y=3n+10

5 0
3 years ago
In a plane, if line f is perpendicular to line m and _____, then f⊥n.
r-ruslan [8.4K]
D is the correct answer

m||n

good luck
3 0
3 years ago
Read 2 more answers
"two angles are supplementary. the measure if one angle is 10 mire than three times the other. Find the measure of each angle.".
jolli1 [7]
If two angles are supplementary, their measures add to 180 degrees.

Let’s name the angles A and B.


You can substitute or replace angle B in the first equation with the second equation like so:

4
So, angle A is 42.5 degrees and angle B is 137.5 degrees!
7 0
4 years ago
Other questions:
  • Set of negative integers greater than -6. Write the given sets in roster form.
    12·1 answer
  • What is a real love?
    5·2 answers
  • Which of the following is NOT a characteristic of a plane? A. It cannot be seen. B. It is imaginary. C. Its width can be measure
    6·2 answers
  • The graph of a linear function is shown
    7·1 answer
  • A box of chocolates contains 18 chocolate squares. Ten of the squares are milk chocolate, 5 are dark chocolate, and 3 ar...
    5·2 answers
  • Kasey has been mowing lawns to save up money for a concert. He earns $15 per hour and needs at least $90 to go to the concert. H
    6·1 answer
  • Anyone know the answer to this?????
    15·2 answers
  • What is the area of a circle with a radius of 11 meters? Round your answers to the nearest tenth.
    14·2 answers
  • Can someone help me with this math homework please!
    6·2 answers
  • The pressure in a car tire is given by p(x) = 31 - X where p is pressure in psi and x is the number of months
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!