Answers
Answer: I would post the answers in comment am unable to add the answer.
Step-by-step explanation:
1.F is the midpoint of AC, angle AFE = angle CFD and DF = EF (Given)
2.angle AFD = angle CFE ( A midpoint divides a segment into two congruent segments.)
3.angle DFE = angle DFE (Reflexive property)
4.angle A = angle C (Congruent angles subtracted from congruent angles form congruent angles )
Related Questions
find the equation of a circle with a center at (-1, 5) and a point on the circle is (4, 4). ( x 1) 2 ( y - 5) 2
Answers
The equation of a circle is x² + y²+ 2x - 10y = 0 with a center at (-1, 5).
What is the equation of a circle?The equation of a circle with center (h,k) and radius r is :
r² = (x−h)² + (y−k)²
Given that a circle with a center at (-1, 5) and a point on the circle is (4, 4).
Since the circle passes through points (4, 4),
So the radius (r) of the circle is the distance between points (-1, 5) and (4, 4).
⇒ r² = (-1−4)² + (5−4)² = 25 + 1
⇒ r = √26
The center of the circle is given as (h,k) = (-1, 5)
So the equation of the circle is
⇒ r² = (x − h)² + (y − k)²
Substitute the values of r, h, and k in the above equation,
⇒ 26 = (x − (-1))² + (y −5)²
⇒ 26 = (x + 1)² + (y −5)²
⇒ 26 = x² + 2x +1 + y² - 10y + 25
⇒ x² + y²+ 2x - 10y = 0
Hence, the equation of a circle is x² + y²+ 2x - 10y = 0 with a center at (-1, 5).
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Eighteen people are in a room. What is the minimum number of handshakes to occur to
guarantee that everyone has shaken everyone else's hand?
Answers
Answer:
153
Step-by-step explanation:
if im correct plz mark me brainliest!
math I need help please help
Answers
Answer:
whats the problem
Step-by-step explanation: ?
12 times 1/8 how do you cross multiply this
Answers
Answer:
12/1 times 1/8 = 1.5
Step-by-step explanation:
You multiply 12 by 1 to get 12, then divide 12 by 8 to get 1.5
1. Find the probability if a computer randomly picks a letter in the phrase, “ YOU WILL ALWAYS BE MY BEST FRIEND.”
a. The letter E
b. The letter L
c. The complement of letter E
d. The complement of letter L
2. Find the odds if a computer randomly picks a letter in the phrase, “ YOU WILL ALWAYS BE MY BEST FRIEND.”
a. The letter E
b.The letter L
Answers
P= 2.50n - 300
How many candy bars must be sold to make a profit of $500?
Answers
Answer:
I need the answer
I dont know!!
Step-by-step explanation:
Need help ASAP pls!!!
Answers
Answer:
the answer is infinity
The distance around the outside of cedar parks is 0.8 miles joanie ran 0.25 of the distance during her lunch break how far did she run
Answers
Answer:
If the total distance is 0.8km we need to multiply that amount by the proportion that she ran, which was 0.25 (one quarter or 25%). So 0.8km x 0.25 = 0.2km Looking another way, the word 'of' often means the same as 'multiply', so 0.25 of 0.8km = 0.25 x 0.8km = 0.2km Joanie ran a total of 0.2 km during her lunch break.
Step-by-step explanation:
Height of place A is 1800 m above sea level. Another place Bis 700mbelowsea level. What is the difference between the levels of these places?
Answers
Answer: 2500 m
Step-by-step explanation:
A is located above 1800 m
B is located below 700 m
Sea level is the datum.
So, difference between A & B = 1800 + 700 = 2500 m
Three of the thirty computers are out of service (not working). What percent are working?
Answers
Answer:
Percentage of computers working equals:
90%
Step-by-step explanation:
Three of the thirty computers are out of service.
Number of computers working=30-3=27
Total computers=30
Percentage of working computers=
=
= 90%
Hence, Percentage of computers working is:
90%
Answer :
90%
Step-by-step explanation:
3/30 = 10% and the remaining percent is 90%
Which slope is the steepest?
y = 10x
y = 0.3x
y = 5x
y = 0.7x
Answers
Answer:
y = 10x
Step-by-step explanation:
*Remember the equation of a line is y = mx + b
Attached are each of the options graphed. As m increases, the slope becomes steeper. The blue line, y = 10x is the steepest of them all.
Hope this helps!
4 x 100 + 8 x 10 + 9 x 1 + 8 x (1/100) + 5 x (1/1,000) in standard form.
Answers
(I NEED THIS DONE ASAP PLEASE) Lena wants to plant a new lawn, but she knows that it’s not safe to run a mower on a hill with a slope ratio steeper than 1 to 3 (Δy = 1, Δx = 3). She has two hills in her yard. Hill A rises 4 feet and has a horizontal distance of 85 feet. Hill B rises 75 feet and has a horizontal distance of 200 feet. On which hill(s) can Lena safely plant her lawn? Justify your reasoning clearly
Answers
Answer:
Hill AStep-by-step explanation:
Steepness of hill A:
4/85 < 1/3Steepness of hill B:
75/200 = 3/8 > 1/3The hill A is less sloped so it is safer to lawn plant
Find the quotient.
-245 - 35
a. -7
b. - 5
C. 5
d 7
Answers
a. -7 is your answer dear.
Step-by-step explanation:
Ur complete Question is like -245/35 = -7
ILL GIVE BRANLIEST AND MANY POINTS
Answers
Percent change formula:
C = x - x
2 1 / x
1
To calculate percent change we need to take the difference between the starting value and final value, divide by the absolute value of the starting value, and multiply the result by 100.
1. 72 is a 33.333% decrease of 108. Round is 33%.
2. 90 is a 20% increase of 75. Round is 20%.
3. 49 is a 75% increase of 28. Round is 80%.
I need help solve this please
Answers
Answer:
A= (2,-3) B= (7-4) C= (4,1)
Step-by-step explanation:
Vertices are the corners of the triangle so we can just use the coordinate plane to find the position of the corners.
Please help asap ! Identify the value of x.
Answers
Answer:
x = 24
Step-by-step explanation:
Apply Pythagoras theorem:
[tex](Hypotnuse)^2=Base^2+Height^2\\(x+1)^2=(x)^2+(7)^2\\(x)^2+2(x)(1)+(1)^2=x^2+49\\x^2+2x+1=x^2+49\\x^2-x^2+2x+1-49=0\\0+2x+1-49=0\\2x-48=0\\2x=48\\x=48/2\\x=24[/tex]
CAN SOMEONE HELP PLEASE?
Answers
Answer:
D
Step-by-step explanation:
for what base-6 digit $d$ is $2dd5 6$ divisible by the base 10 number 11? (here $2dd5 6$ represents a base-6 number whose first digit is 2, whose last digit is 5, and whose middle two digits are both equal to $d$).
Answers
The digits base is 7 then we should convert them into base 6.
The exponent or power to which a base must be raised to yield a given number. Expressed mathematically, x is the logarithm of n to the base b if bx = n, in which case one writes x = logbn.
Here the conclusion is that there are many bases in the mathematics so what will happen is that we should convert these bases. For example, we have to convert base 10 of a number which is called decimal number can be converted into binary number whose base is 2 and after then if the digits base is 7 then we should convert them into base 6.
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1- (-16) and 11- (11) just in case this information is needed it's integers I'm doing this for extra credit
Answers
Answer:
?
Step-by-step explanation:
In triangle ABC,the measure of angle A is 78° and the measure of angle B is 35° What is the measure of angle C
Answers
Answer:
č= 67°
Step-by-step explanation:
x + 78+35=180
x + 113=180
x= 180-113
x= 67 degrees
Troy invests $540 in a savings account that earns a simple interest
rate of 2.3% annually. How much money will Troy have in
the account after four years assuming he does not deposit or
withdraw any money?
please help:)
Answers
wish i could help bro bro.
Answer/step-by-step explanation:
Well, we first need to find out what 2.3 of $540 is.
540 x 2.3 = 1,242.
Now, we need to find what the yearly interest rate is over the course of four years.
1,242 x 4 = $4,968.
Therefore, Trey will have earned $4,968 after four years.
To complete this problem, we need to add this to his original balance, or $540.
4,968 + 540 = 5,508
Therefore, Trey would make a total of $5,508 after four years.
Hope this helps! :D
Jade’s weekly paycheck is $306.25. She makes $8.75 per hour. Divide to find the number of hours per week Jade works.
Answers
Answer:
35 hours a week
Step-by-step explanation:
306.25 / 8.75
35
Answer:
Jade works for a total of 35 hours per week.
Step-by-step explanation:
Since Jade's weekly paycheck is $306.35, and she makes $8.75 per hour, we need to divide the weekly amount by the hourly amount to find the amount of weeks that Jade works.
$306.25 ÷ $8.75 = 35
Therefore, Jade works for a total of 35 hours per week.
Hope this helps! :D
Please help with this question, thank you.
Answers
Hope this helps, and merry Christmas!!
Find the midpoint of (2,-9) and (-4,-4)
Answers
HELP ME PLZ BRAINLIST 4 U
Answers
Answer:
G
Step-by-step explanation:
I think its G because i counted the numbers...and i pretty sure its not a Negative so yah
If a sample has a small standard deviation, we can say the scores in the sample are.
Answers
If a sample has a small standard deviation, we can say the scores in the sample are consistent.
Standard deviation is a measure of dispersion. It measures the variation of the scores from the central value of the distribution.
A data is said to be consistent when this variation is less. Such data are easy to handle for studies.
When it is difficult to study the very large population, we choose samples from the population randomly. Each of these samples also have its own standard deviation. When this standard deviation is small, then the data is more consistent. That is, the scores in the sample goes well with those in the population.
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Which expression is equivalent to StartFraction RootIndex 4 StartRoot 6 EndRoot Over RootIndex 3 StartRoot 2 EndRoot?
Answers
Answer:
C
Step-by-step explanation:
used a calc and took test
tHE SPEED OF SOUND IN AIR IS 1100 FEET PER SECOND. THE SPEED OF SOUND IN STEEL IS 1500 FEET PER SECOND. ROBIN ONE EAR PRESSED AGAINST THE RAILROAD TRACK, HEARS A SOUND THROUGH THE RAIL SIX SECONDS BEFORE HEARING THE SAME SOUND THROUGH THE AIR. TO THE NEAREST FOOT HOW FAR AWAY IS THE SOURCE OF THAT SOUND
Answers
To the nearest foot the distance of source of that sound is 24,750 feet.
Given that;
Speed of sound in air = 1100 feet per second
Speed of sound in steel = 1500 feet per second
Time difference = 6 seconds
We have to find the nearest foot for the distance of source of that sound.
What is relation between distance, speed and time?
The relation between distance, speed and time is;
Speed = Distance/Time
We have;
Time difference = 6 seconds
Let the distance = x feet.
For the air;
Distance = x feet
Speed of sound in air = 1100 feet per second
Then, Time = Distance/speed = x / 1100
And, For steel ;
Distance = x feet
Speed of sound in steel = 1500 feet per second
Hence, Time = Distance/speed = x/1500
Since, Time difference = 6 seconds
Hence, The equation become;
x / 1100 - x/1500 = 6
(1500x - 1100x)/1100*1500 = 6
400x = 6 * 1100 * 1500
x = 24,750 feet.
Hence, To the nearest foot the distance of source of that sound is 24,750 feet.
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what is the missing number of each unit rate?
Answers
Check out the attached photo
2/1
For the one on the right I think it’s 3
3/1