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
sveta [45]
3 years ago
7

Find the coordinates of midpoint e. Please help

Mathematics
1 answer:
Sedaia [141]3 years ago
3 0

Answer:

(-2a, -2b)

Step-by-step explanation:

(\frac{-3a+(-a)}{2},\frac{b+(-5b)}{2})

(\frac{-4a}{2},\frac{-4b}{2})

(-2a,-2b)

You might be interested in
A civil engineer is analyzing the compressive strength of concrete. Compressive strength is normally distributed with A random s
wel

Answer:

95%: (3278.354 ; 3270.083)

99% : (3221.646 ; 3278.354)

Step-by-step explanation:

Given :

Sample size, n = 12

Mean, xbar = 3250

Sample standard deviation = √1000

The 95% confidence interval :

Mean ± Margin of error

Margin of Error = Tcritical * s/√n

Tcritical at 0.05, df=12-1 = 11 ;

Tcritical at 95% = 2.20

Hence,

Margin of Error = (2.20 * √1000/√12) = 20.083

Confidence interval : 3250 ± 20.083

Lower boundary = 3250 - 20.083 = 3229.917

Upper boundary = 3250 + 20.083 = 3270.083

2.)

The 99% confidence interval :

Mean ± Margin of error

Margin of Error = Tcritical * s/√n

Tcritical at 0.01, df=12-1 = 11 ;

Tcritical at 99% = 3.106

Hence,

Margin of Error = (3.106 * √1000/√12) = 28.354

Confidence interval : 3250 ± 28.354

Lower boundary = 3250 - 28.354 = 3221.646

Upper boundary = 3250 + 28.354 = 3278.354

3 0
3 years ago
Jimmy invests $2500 in an account with a 5% interest rate, making no other deposits or withdrawals. What will Jimmy’s account ba
Alik [6]

Answer:

We conclude that the total amount accrued, principal plus interest,  from compound interest on an original principal of  $2500 at a rate of 5% per year compounded 6 times per year over 8 years is $3723.38.

Step-by-step explanation:

Given

Principle P = $2500

Interest rate r = 5% = 0.05

Time period t = 8 years

To determine

Accrue Amount A = ?

Using the compound interest equation

A\:=\:P\left(1\:+\:\frac{r}{n}\right)^{nt}

where:

A represents the Accrue Amount

P represents the Principal Amount

r represents the interest rate

t represents the time period in years

n represents the number of compounding periods per unit t

Important tip:

  • Given that the interest is compounded 6 times each year, therefore, the value of n = 6.

now substituting P = 2500, r = 0.05, t = 8 and n = 6 in the equation

A\:=\:P\left(1\:+\:\frac{r}{n}\right)^{nt}

A=2500\left(1+\frac{0.05}{6}\right)^{\left(6\right)\left(8\right)}

\:A=2500\left(1+\frac{0.05}{6}\right)^{48}

A=2500\times 1.48935      ∵  \left(1+\frac{0.05}{6}\right)^{48\:\:}=1.48935

A=\:3723.38 $

Therefore, we conclude that the total amount accrued, principal plus interest,  from compound interest on an original principal of  $2500 at a rate of 5% per year compounded 6 times per year over 8 years is $3723.38.

8 0
2 years ago
What is the 30 60 90 rule and the 45 45 90 rule (to do with triangles)
Sphinxa [80]
The 30,60,90 - the hypotenuse is equal to twice the length of the shorter leg , the hypotenuse side =2x , the shortest side =x and the straight side is x square root 3
7 0
3 years ago
How do i solve for this? 19-13p=-17p-5=
Vsevolod [243]
19-13p=-17p-5
+5                +5
24-13p=-17p
   +13p   +13p
24=-4p
/-4   /-4
-6=p
7 0
3 years ago
Read 2 more answers
A ski lodge charges $26 per day for a pass and $1.50 for every ski lift ride. A second ski
malfutka [58]

Answer:

32=40

26=39

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • 10 POINTS!!! FULL ANSWER WITH FULL STEP BY STEP SOLUTION PLEASE
    11·1 answer
  • What is the square root of 16 to the 8th power?
    12·2 answers
  • 40% of __=10<br> ?????????????????????????????????????????????????????????
    14·1 answer
  • The average wind speed at a local weather station is 34.8 miles per hour. The highest speed ever recorded the stations 318.0 mil
    9·1 answer
  • HELP ME PLEASE QUICKLY
    10·2 answers
  • What is the equation of the line in slope-intercept form the line perpendicular to y=4/9x-6 through (5,-6)
    10·1 answer
  • A regular triangle rotated about its center by 360 degrees maps onto itself at
    9·1 answer
  • What is the value of this expression when g=-3.5?<br> 8-12g-51
    13·1 answer
  • Please help I need to have this in by tonight
    10·2 answers
  • The area of a pool is 256π ft2. Find the distance around the pool in terms of pi.?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!