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
katen-ka-za [31]
3 years ago
13

Please answer quickly!!!

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
3 0

Answer:

c=20

Step-by-step explanation:

The diagonals of a rectangle always bisect each other. Therefore, we can set QT=ST:

c=4c-60,\\-3c=-60,\\c=\fbox{20}

You might be interested in
If you have 64 pieces of candy and you want to split them equally how many piles will you have?
Alex_Xolod [135]
You can do 8 piles because 8×8=64. So 8 groups with 8 candies in each group. :)
6 0
3 years ago
Tiffany answered 80% of the questions on her math test correctly. There were 40 questions on the test. How many questions did Ti
coldgirl [10]

Answer:32

Step-by-step explanation:

P%=p/100

80/100*40

4/8*40

4*8=32

4 0
3 years ago
Find two positive numbers such that the ratio of the two numbers is 7 to 3 and the product of the two numbers is 525.
lbvjy [14]

Answer:

35 and 15

Step-by-step explanation:

Process of elimination:

Try 105 and 5 - 105 is way too much and 5 is way too little. We know that they are between 5 and 105.

Try 50 and 10.5 - This is closer, but 50 is still too much and 10.5 is too little. We now know that the two numbers are between 10.5 and 50

Try 30 and 17.5 - This is very close, but now 30 is not enough and 17.5 is too much. We now know that the smaller number is between 10.5 and 17.5 as well as the larger number is between 30 and 50.

Try 40 and 13.125 - This is also very close, but 40 is too much and 13.125 is too little. We now know that the lower number is between 13.125 and 17.5 as well as the larger number is between 30 and 40.

Try 35 and 15 - Success: 35 and 5 make the simplified ratio of 7:3! They also are products of 525!

7 0
3 years ago
Suppose that an airline quotes a flight time of 128 minutes between two cities. Furthermore, suppose that historical flight reco
ANTONII [103]

Answer:

(a) The probability density function of <em>X</em> is:

f_{X}(x)=\frac{1}{b-a};\ a

(b) The value of P (129 ≤ X ≤ 146) is 0.3462.

(c) The probability that a randomly selected flight between the two cities will be at least 3 minutes late is 0.4327.

Step-by-step explanation:

The random variable <em>X</em> is defined as the flight time between the two cities.

Since the random variable <em>X</em> denotes time interval, the random variable <em>X</em> is continuous.

(a)

The random variable <em>X</em> is Uniformly distributed with parameters <em>a</em> = 10 minutes and <em>b</em> = 154 minutes.

The probability density function of <em>X</em> is:

f_{X}(x)=\frac{1}{b-a};\ a

(b)

Compute the value of P (129 ≤ X ≤ 146) as follows:

Apply continuity correction:

P (129 ≤ X ≤ 146) = P (129 - 0.50 < X < 146 + 0.50)

                           = P (128.50 < X < 146.50)

                           =\int\limits^{146.50}_{128.50} {\frac{1}{154-102}} \, dx

                           =\frac{1}{52}\times \int\limits^{146.50}_{128.50} {1} \, dx

                           =\frac{1}{52}\times (146.50-128.50)

                           =0.3462

Thus, the value of P (129 ≤ X ≤ 146) is 0.3462.

(c)

It is provided that a randomly selected flight between the two cities will be at least 3 minutes late, i.e. <em>X</em> ≥ 128 + 3 = 131.

Compute the value of P (X ≥ 131) as follows:

Apply continuity correction:

P (X ≥ 131) = P (X > 131 + 0.50)

                 = P (X > 131.50)

                 =\int\limits^{154}_{131.50} {\frac{1}{154-102}} \, dx

                 =\frac{1}{52}\times \int\limits^{154}_{131.50} {1} \, dx

                 =\frac{1}{52}\times (154-131.50)

                 =0.4327

Thus, the probability that a randomly selected flight between the two cities will be at least 3 minutes late is 0.4327.

6 0
3 years ago
If pi=3.14 what is the ratio?
Nataly [62]
The ratio will always be 3.14
8 0
2 years ago
Other questions:
  • What is the equation of a line that passes through the point (6, 1) and is perpendicular to the line whose equation is y=−2x−6y?
    9·1 answer
  • Help with math homework pls! No wrong answers PLS!!
    13·2 answers
  • jll invited 37 people to her birthday party they each ate 8 pieces of pizza how many pieces of pizza did they eat
    12·1 answer
  • A communications circuit is known to have an availability of 0.99 (that is, 99% of the time, the circuit is operational). A tota
    9·1 answer
  • Gisele trains 7 days per week for a biathlon. She covers a total of 20 miles cycling and running each day. Gisele cycles a total
    9·2 answers
  • NEED HELP ASAP <br><br> PLZZZZS????
    10·1 answer
  • Correct answers only please!
    13·1 answer
  • Since the great drought left the soil completely useless, the people of that country were forced to______ food from other countr
    11·2 answers
  • Employees of the sports department at a television station want to measure the number of viewers for a particular exercise progr
    12·1 answer
  • the interest paid for borrowing qn amount of money for 3yrs at the rate of 4%is n108 find the amount of the money borrowed
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!