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
Vera_Pavlovna [14]
2 years ago
15

the midpoint of ab has coordinates of (5,-1) if the coordinate of a are (2,-3) what are the coordinates of b

Mathematics
1 answer:
kotegsom [21]2 years ago
3 0

Answer:

(3, 2)

Step-by-step explanation:

I am sure

You might be interested in
Not sure if any of this is correct, but it’s what I got so far
Irina18 [472]

Problem 1 is correct. You use the pythagorean theorem to find the hypotenuse.

==================================================

Problem 2 has the correct answer, but one part of the steps is a bit strange. I agree with the 132 ft/sec portion; however, I'm not sure why you wrote \frac{1 \text{ sec}}{132 \text{ ft}}=\frac{0.59\overline{09}}{78 \text{ ft}}*127 \text{ ft}

I would write it as \frac{1\text{ sec}}{132 \text{ ft}}*127 \text{ ft} = \frac{127}{132} \text{ sec} \approx 0.96 \text{ sec}

==================================================

For problem 3, we first need to convert the runner's speed from mph to feet per second.

17.5 \text{ mph} = \frac{17.5 \text{ mi}}{1 \text{ hr}}*\frac{1 \text{ hr}}{60 \text{ min}}*\frac{1 \text{ min}}{60 \text{ sec}}*\frac{5280 \text{ ft}}{1 \text{ mi}} \approx 25.667 \text{ ft per sec}

Since the runner needs to travel 90-12 = 78 ft, this means\text{time} = \frac{\text{distance}}{\text{speed}} \approx \frac{78 \text{ ft}}{25.667 \text{ ft per sec}} \approx 3.039 \text{ sec}

So the runner needs about 3.039 seconds. In problem 2, you calculated that it takes about 0.96 seconds for the ball to go from home to second base. The runner will not beat the throw. The ball gets where it needs to go well before the runner arrives there too.

-------------

The question is now: how much of a lead does the runner need in order to beat the throw?

Well the runner needs to get to second base in under 0.96 seconds.

Let's calculate the distance based on that, and based on the speed we calculated earlier above.

\text{distance} = \text{rate}*\text{time} \approx (25.667 \text{ ft per sec})*(0.96 \text{ sec}) \approx 24.64032 \text{ ft}

This is the distance the runner can travel if the runner only has 0.96 seconds. So the lead needed is 90-24.64032 = 65.35968 feet

This is probably not reasonable considering it's well over halfway (because 65.35968/90 = 0.726 = 72.6%). If the runner is leading over halfway, then the runner is probably already in the running motion and not being stationary.

As you can see, the runner is very unlikely to steal second base. Though of course such events do happen in real life. What may explain this is the reaction time of the catcher may add on just enough time for the runner to steal second base. For this problem however, we aren't considering the reaction time. Also, not all catchers can throw the ball at 90 mph which is quite fast. According to quick research, the MLB says the average catcher speed is about 81.8 mph. This slower throwing speed may account for why stealing second base isn't literally impossible, although it's still fairly difficult.

5 0
2 years ago
PLS HELP ME WITH THHESE I GIVE ALL YALL BRAINLZESS
Olegator [25]

Answer:

1. R

2. Match the year with the price. For example, 2006 should have a line directly on 15.

3. A (The first number on each row is the second number multiplied by 4)

4. C

5. A

MAKE SURE TO DOUBLE-CHECK JUST IN CASE!

7 0
3 years ago
What is the answer of 7-4x=2-9x
julia-pushkina [17]
7-4x=2-9x the answer is x=1
5 0
2 years ago
Read 2 more answers
Hello! Guys, I urgently need your help on place value above 100000
AnnyKZ [126]

Answer:

. . . . . . . . . hnghcgghjjjjj

6 0
2 years ago
Read 2 more answers
−2t−5&lt;9<br><br> Hiiiiiiii<br><br> Huuuu
Brilliant_brown [7]

Answer:

t > -7

Step-by-step explanation:

To solve for t, first add 5 to both sides:

-2t - 5 < 9

-2t < 14

Divide each side by -2, and flip the inequality because we are dividing by a negative number:

-2t < 14

t > -7

So, the solution is t > -7

4 0
2 years ago
Read 2 more answers
Other questions:
  • What is the average rate of change of f(x), represented by the graph, over the interval [-1, 1]? and my answers are
    7·1 answer
  • PLLLZZZZ HELPPP MEE
    7·1 answer
  • 68.3 times 6.5<br> A) 54.675<br> B) 5.04<br> C) 5.4675<br> D) 443.95<br> (no need to show work!)
    13·2 answers
  • How do you convert 5/8 into a decimal?
    8·1 answer
  • Three years ago Laura bought a new car for $27,400. When she traded the car in to a dealer last week it was worth $15,618. Find
    14·1 answer
  • Rewrite each equation in standard form<br> Y=6x-4
    9·1 answer
  • The parallelogram shown below has an area of 21 units. 7 6 8 Find the missing base. B.​
    14·1 answer
  • HELPPPPPPPPPOOOOOPPPPPPPPOP PLS
    10·1 answer
  • Fernando cleans pools for the summer for $25 an hour plus a supply fee of $15.
    9·1 answer
  • Dtermine the Range and domain defined by R = {(x-1), (x+2); x € (2,3,4,5)}​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!