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
Ivenika [448]
3 years ago
12

The rational number -28 is equal to?

Mathematics
1 answer:
yuradex [85]3 years ago
8 0
-28 is equal to positive 28
You might be interested in
Find the absolute maximum and minimum values of f(x,y)=xy−4x in the region bounded by the x-axis and the parabola y=16−x2.
skad [1K]

Answer:

The absolute maximum and minimum is 20\; \text{and} -20.

Step-by-step explanation:

We first check the critical points on the interior of the domain using the

first derivative test.

f_x=y-4=0

f_y=x=0

The only solution to this system of equations is the point (0, 4), which lies in the domain.

f_{xx}=0, \;f_{yy}=0\; \text{and}\; f_{xy}=-1

\Rightarrow f_{xx}f_{yy}-f_{xy}=o-1=-1

\therefore (0,4) is a saddle point.

Boundary points -  (4,0),  (-4,0), (0,16)

Along boundary  y=16-x^2

   f=x(16-x^2)-4x

=16x-x^3-4x

\Rightarrow f^'=16-3x^2-4=0

\Rightarrow 3x^2=12

\Rightarrow x=\pm2,\;\;y=14

Values of f(x) at these points.

\begin{array}{}(4,0)=-16\\(-4,0)=16\\(0,16)=0\\(2,14)=20\\(-2,14)=-20\end{array}

Therefore, the absolute maximum and minimum is 20\; \text{and} -20.

6 0
3 years ago
Estimate the diameter of a wheel that makes 9 revolutions and travels 50 feet.Use 22/7 for π
salantis [7]
<span> 1.7676 Feet is the diameter</span>
3 0
3 years ago
I need help with math homework #2 algebra
OverLord2011 [107]

Answer:

A. (0, -2) and (4, 1)

B. Slope (m) = ¾

C. y - 1 = ¾(x - 4)

D. y = ¾x - 2

E. -¾x + y = -2

Step-by-step explanation:

A. Two points on the line from the graph are: (0, -2) and (4, 1)

B. The slope can be calculated using two points, (0, -2) and (4, 1):

slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{1 -(-2)}{4 - 0} = \frac{3}{4}

Slope (m) = ¾

C. Equation in point-slope form is represented as y - b = m(x - a). Where,

(a, b) = any point on the graph.

m = slope.

Substitute (a, b) = (4, 1), and m = ¾ into the point-slope equation, y - b = m(x - a).

Thus:

y - 1 = ¾(x - 4)

D. Equation in slope-intercept form, can be written as y = mx + b.

Thus, using the equation in (C), rewrite to get the equation in slope-intercept form.

y - 1 = ¾(x - 4)

4(y - 1) = 3(x - 4)

4y - 4 = 3x - 12

4y = 3x - 12 + 4

4y = 3x - 8

y = ¾x - 8/4

y = ¾x - 2

E. Convert the equation in (D) to standard form:

y = ¾x - 2

-¾x + y = -2

8 0
3 years ago
Multiply (x-3)(4x+2) using the distributive property.
asambeis [7]
\text{The distributive property:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(x-3)(4x+2)=(x)(4x)+(x)(2)-(3)(4x)-(3)(2)\\\\=4x^2+2x-12x-6=4x^2-10x-6
3 0
3 years ago
Help please For the following function, construct a table.
AysviL [449]

Answer:

See the attachment below.

Step-by-step explanation:

Best Regards!

3 0
3 years ago
Other questions:
  • What is the slope of a line that is perpendicular to the line y = -1/2 x + 5?
    15·1 answer
  • The area of a closet floor measures 3 yards by 3 yards and each custom tile that makes up the flooring is 1 1/2 square feet. How
    6·2 answers
  • As a fraction with variable(s), b over 4.9 = - 20.6 <br><br> Solve for b
    5·2 answers
  • Help me please I’m having trouble with these equations
    13·1 answer
  • Combine like terms.
    5·1 answer
  • Ancient Egyptians did not write the fraction 4/5 as 4/5. Instead they used unit fractions. The numerator of a unit fraction is a
    14·1 answer
  • PLEASE HELP!!!!
    11·1 answer
  • Use a decimal number to describe the shaded amount<br><br> 5 out of 10
    7·2 answers
  • Cereal is on sale this week. Is it a better buy to get the 10-ounce box for $1.76 or the 14-ounce box for $2.42?
    10·1 answer
  • How much longer does it take to travel 100 kilometers at 65 km/h than at 70 km/h?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!