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
irina1246 [14]
3 years ago
7

Write the equation of a line that is perpendicular to -2/7x+9 that passes through the point (4, -6)

Mathematics
2 answers:
Anna11 [10]3 years ago
6 0

Answer:

7y + 2x + 34 = 0

Step-by-step explanation:

The gradient for perpendicular, m = -2/7

The formular equation, y - y1 = m(x - x1)

The equation of line through (4, -6) is:

y - (-6) = -2/7(x - 4)

y + 6 = -2x/7 + 8/7

7y + 42 + 2x - 8 = 0

7y + 2x + 34 = 0

LUCKY_DIMON [66]3 years ago
3 0

Answer:

the desired equation is y = (-7/2)x - 8

Step-by-step explanation:

Don't you mean y = -2/7x+9, or y = (2/7)x+9?   Any line perpendicular to this line has a slope of -7/2, the negative reciprocal of (2/7).

Start with the slope-intercept formula:

y = mx + b.  Substitute -6 for  y, 4 for x and -7/2 for m.  Then we have

-6 = (-7/2)(4) + b.   This reduces to -6 = -14 + b, so that b must be -8.

Thus, the desired equation is y = (-7/2)x - 8

You might be interested in
Betty is 5 more than jaydens age. Betty is 41 years old. Write an equation to find jaydens age,×
Brilliant_brown [7]

Answer:

the answer is 36 years old

Step-by-step explanation:

first you would put them in an equation like this... 41-5

then you would subtract them and get 36 years old

7 0
3 years ago
Read 2 more answers
Show work please help
Snezhnost [94]

Answer:

20 yd^2

Step-by-step explanation:

Your work is partially correct.

Assuming that the sides marked 8 yds and 2 yds are parallel, then the area of the trapezoid is

A =    ( 8 yds + 2 yds)

        ------------------------ * 4  =  20 yd^2

                      2

4 0
3 years ago
The circumference of great circle of a hemisphere is 44 cm. find the total surface area of the hemisphere​
max2010maxim [7]

Answer:

I didn't know if you meant that the circumference of tje hemisphere was 44 or if the circumference of the cirkel in which the hemisphere exists is 44 but you rearrange the numbers.

Step-by-step explanation:

The formula for calculating a circumference is 2×pi×r, with r as tje radius of the cirkel. So in this instance we get 2×pi×r=44. r=44/(2×pi)=7.00 centimeters. The total surface area of a cirkel=pi×r^2=pi×7.00^2=154.06 meters squared. 154.06/2=77.03 meters squared (hemisphere is half of a cirkel)

6 0
3 years ago
What is the solution to 7 • p = –56? a. p = –49 b. p = –8 c. p = 8 d. p = 49
Lostsunrise [7]
The correct answer is p=-8
8 0
3 years ago
What is 350/100 as a decimal and percent
igor_vitrenko [27]
3.5
350%. Hope it helped
7 0
3 years ago
Other questions:
  • What is the y intercept of the line? X=24,36,48 and y= -8, 1, 10
    15·1 answer
  • HELP! SHOW ALL WORK AND EXPLAIN. :P
    5·2 answers
  • Possible expressions that simplify to 37
    10·1 answer
  • Check all the answers that represent the same level of precision. A. 100.6 B. 23.45 C. 1.1 D. 42
    15·1 answer
  • A container is in the shape of a rectangular prism with a square base. It has a volume of 99 cubic inches and a height of 11 inc
    12·2 answers
  • A box of cereal states that there are 81 calories in a 7-cup serving. What is the unit rate for calories
    10·1 answer
  • The percent of <br><br> 3.5% of 400
    15·1 answer
  • Can anybody help me with this number 9 ? show work please and thank you
    12·1 answer
  • Please answer this correctly without making mistakes
    7·2 answers
  • 376 ×74 explain the solving steps​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!