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
defon
3 years ago
13

The equation of line WX is y = −2x − 5. Write an equation of a line perpendicular to line WX in slope-intercept form that contai

ns point (−1, −2).
Mathematics
2 answers:
Kryger [21]3 years ago
5 0

Answer:

y = (1/2)x - 3

Step-by-step explanation:

The slope of line WX is -2.  Therefore, the slope of a line perpendicular to line WX is the negative reciprocal of -2, or +1/2.

Substitute -2 for y, -1 for x and 1/2 for m in   y = mx + b, for the purpose of finding b:

-2 = (1/2)(-1) + b.  Multiply all terms by 2 to eliminate the fraction:

-4 = -1 + b.  Then b = -3, and the desired equation is y = (1/2)x - 3.

Furkat [3]3 years ago
4 0

Answer:

Y=(1/2)-3

Step-by-step explanation:

The slope of line WX is -2 or 1/2

You might be interested in
How many terms are in this expression? d + 8c + 7 ​
Fantom [35]

Answer:

2

Step-by-step explanation:

8 0
3 years ago
A researcher is interested in the lengths of Salvelinus fontinalis (brook trout), which are known to be approximately Normally d
kompoz [17]

Answer:

c. 0.1151

Step-by-step explanation:

d) the probability that, on average, fish are larger than 86 centimeters in length.The area under part of a normal probability curve is  directly proportional to probability and the value is calculated as

z = (x₁−x) /σ

where z = propability of normal curve

x₁ = variate mean = 86cm

x = mean of 80cm

σ = standard deviation = 5cm

applying the formula,

z= (86-80)/5

z = 6/5 =1.2

Using a table of partial areas beneath the standardized normal curve (see Table of normal curve, a z-value of 1.2 corresponds to an area of 0.3849 between the mean value. but, because the standard curve has 0.5, then will minus 0.3849 from 0.5= 0.5 - 0.3849 = 0.1151

Thus the probability of a fish are larger than 86 centimeters in length is 0.1151

5 0
3 years ago
Nina can stitch 2/3 of dress in 4 hours. If represents the number of dresses and the represents the number of hours, which equat
Gelneren [198K]

Answer:

d :4h

Step-by-step explanation:

hope this helps (;

7 0
3 years ago
Read 2 more answers
Find the average rate of change of the function from x=1 to x=2.<br><br><br><br> f(x)=−14/x^2
Irina-Kira [14]

Answer:

The average rate of change of the function from x=1 to x=2 will be: 10.5                

Step-by-step explanation:

Given the function

f\left(x\right)=-\frac{14}{x^2}

at x₁ = 1,

f(x₁) = f(1) =  -14/(1)² = -14/1 = -14

at x₂ = 2,

f(x₂) = f(2) = -14/(2)² = -14/(4) = -3.5

Using the formula to determine the average rate of change at which the total cost increases will be:

Average rate of change = [f(x₂) - f(x₁)] / [ x₂ - x₁]

                                        = [-3.5 - (-14)] / [2 - 1]

                                        = [-3.5 + 14] / [1]

                                        = 10.5 / 1

                                        = 10.5

Therefore, the average rate of change of the function from x=1 to x=2 will be: 10.5                      

6 0
3 years ago
Determine the amplitude (A), period (P), and phase shift (PS) of the function f(x)= 3sin(x-4)+9
Tpy6a [65]
ANSWER

D.
A=3,P=2\pi,PS=(4,9)

EXPLANATION

The given function is

f(x) = 3 \sin(x - 4) + 9

Comparing to the general form of a trigonometric sine function,

f(x) = A \sin(Bx-C)+D

A=3
The amplitude is absolute value of A

|A| = |3| = 3

B=1

The period is given by

p = \frac{2\pi}{ B}

p = \frac{2\pi}{ 1} = 2\pi

C=4

is a shift to the right of 4 units.

and

D=9

is an upward shift of 9 units

Therefore the phase shift is (4,9).

The correct answer is D
6 0
2 years ago
Other questions:
  • Students at Springfield Middle school are planning to rooftop a garden.They plan to plant flowers in 18 beds,which is 30% of the
    5·1 answer
  • Losnavchienponcnet/w/question bd020624 22:40a7.0484 007009000/0003716 712 420 Sale bebo99
    15·1 answer
  • Which of these is the algebraic expression for the verbal expression "five times the difference of a number and six
    6·1 answer
  • Suppose the round-trip airfare between Philadelphia and Los Angeles a month before the departure date follows the normal probabi
    9·1 answer
  • the graph shows the proportion of red and blue food coloring ,that taylor mixes to make purple ,what is the slope of the line ?t
    14·1 answer
  • SS below of my question
    13·2 answers
  • Math test questions <br>Find the measurement of the unknown angle​
    15·2 answers
  • N − 2/3 = 25 3/4 help now
    10·1 answer
  • Of 1936 people so came into a blood bank to give blood, 200 people had high blood pressure. Estimate the probability that the ne
    9·1 answer
  • Jack has to fill 50 water bottles for the football team. Each bottle holds 800 milliliters of water. How much water does jack ne
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!