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
Elenna [48]
3 years ago
8

Points (-21, 5) and (-7,y) have a slope of 5. Find the y coordinate of the point.

Mathematics
1 answer:
hjlf3 years ago
8 0

Answer:

80

Step-by-step explanation:

The equation of finding a slope is y2-y1/x2-x1.

y-5/-7-(-21)=5

y-5/-7+21=5

y-5/15=5

y-5=75

y=80

You might be interested in
A rock is dropped off a 500-foot cliff. After 1 second the rock is traveling 32 feet per second then after 4 seconds the rock st
kozerog [31]

Answer:

<u>A. The equation describing the relationship between speed and time is:</u>

<u>s = 32t</u>

<u>Ordered pairs of the form (speed, time) are:</u>

<u>(32, 1)</u>

<u>(64, 2)</u>

<u>(96, 3)</u>

<u>(128, 4)</u>

<u>B. </u>

<u>Using s = 32t, we have:</u>

<u>s = 32 * 5 = 160 feet per second</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Height of the cliff = 500 feet

Speed after one second = 32 feet per second

Speed after four seconds = 128 feet per second

2. Assume the relationship between time, t, and speed, s, is linear and write an equation describing the relationship. Use ordered pairs of the form (speed, time)

The equation describing the relationship between speed and time is:

s = 32t

Ordered pairs of the form (speed, time) are:

(32, 1)

(64, 2)

(96, 3)

(128, 4)

3.  Use the equation to determine the speed of the rock 5 seconds after is dropped.

s = 32t

s = 32 * 5 = 160 feet per second

Note: Same answer to question 14436233, answered by me today.

4 0
3 years ago
What would you have to do to change 10 cubic feet into cubic inches? A. Multiply by 46,656 B. Divide by 1,728 C. Multiply by 1,7
Semmy [17]
1 foot = 12 inches

(1 foot)³ = (12 inches)³

12³ = 1,728 in³

To change 10 cubic feet into cubic inches

10 ft³ * 1728 in³/ft³ = 17,280 in³  Choice C. Multiply by 1,728
5 0
3 years ago
Read 2 more answers
Someone please help me ASAP
Ivanshal [37]

Step-by-step explanation:

a vector multiplied by a scalar is equal to it's image. The expression above gives an equation and after solving, it gives you the image

7 0
3 years ago
Help with math algebra question in the picture
VashaNatasha [74]

Answer:

-_-_-_-_-_-a_-_-_-_-

3 0
3 years ago
5x-4=-3-x so ya can yall help
Ket [755]

Step-by-step explanation:

5x-4=-3-x

5x+x=4+(-3)

6x=1

x=1/6

4 0
3 years ago
Read 2 more answers
Other questions:
  • <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20x%5E%7B2%7D%20%7D%3D%20-x%3Cbr%3E%3Cbr%3E%0AFind%20the%20Domain%20" id="TexFor
    6·1 answer
  • Find the common difference of the sequence shown.<br> 1/2, 1/4, 0, ...<br> -1/8<br> -1/4<br> -1/2
    9·1 answer
  • Write an inequality for the following statement: “You have to be at least 18 years old to vote.”
    10·1 answer
  • 1/3 n=4/5 Enter the value of the n that will make the equation true.
    6·1 answer
  • To solve the system of equations below
    5·1 answer
  • What is x in the equation x+3=9
    13·2 answers
  • State why the series is convergent or divergent, and if it is convergent, find the sum.
    5·1 answer
  • Find the slope of the line perpendicular for (-3,-2) and (3, 1)
    7·1 answer
  • One pound of grout is enough to grout a tiled area that is 110 sq. Ft. Alyssa's kitchen counter is made up of two rectangular se
    12·2 answers
  • I am terrible at math, so i might need some help with this
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!