Answers
9514 1404 393
Answer:
a) ∆ABC ~ ∆EDC by AA similarity
b) ED/AB = 3/4
c) 15 cm
Step-by-step explanation:
a) Two angles in each triangle are the same, so the AA similarity postulate can be used to declare the ∆ABC ~ ∆EDC. (Each triangle includes a right angle and angle C.)
__
b) Corresponding sides are ED/AB, DC/BC, EC/AC. The ratio of corresponding sides is ED/BC = (12 cm)/(16 cm) = 3/4.
__
c) Using the ratios identified above, we have ...
DC/BC = 3/4 = x/(20 cm)
x = 3/4(20 cm)
x = 15 cm
Related Questions
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the
time after launch, x in seconds, by the given equation. Using this equation, find out
the time at which the rocket will reach its max, to the nearest 100th of a second.
y = -16x2 + 168x + 92
Answers
9514 1404 393
Answer:
5.25 seconds
Step-by-step explanation:
The vertex of the parabola defined by ax²+bx+c is located at x = -b/(2a).
The time to maximum altitude is ...
x = -(168)/(2(-16)) = 168/32 = 5.25
The time at which maximum height is reached is 5.25 seconds after launch.
Twenty-four boxes of crayons weigh 235.2 ounces. How many ounces is each box of crayons? Do not include units.
Answers
Answer:
9.81 "units"
Step-by-step explanation:
Since 235.2 is the number as a whole, we need to find each individual weight so we divide by how many boxes of crayons makes up this weight.
Plz help me I’ll give brainliest
Answers
Answer:
Scalene Acute
Step-by-step explanation:
All the degree's are below 90 and the sides are uneven and sloped. If the angle is below 90 degrees it's acute and if the sides are uneven it is scalene.
Therefore, it is scalene acute.
this is worth 20 points so please help me
A jewelry store marks its merchandise up by 80%. If the wholesale price of a bracelet is $55, what will the store charge for the retail price?
O A) $63
OB) $75
OC) $99
OD) $110
Answers
Answer: B.
Step-by-step explanation:
Find the area of the shaded figure.
Answers
Answer:
30
Step-by-step explanation:
lets see so step 1 would be to separate the shapes. to get a 3 by 6 rectangle and a triangle immediately you can figure out the area of the rectangle is 18, and from there you go to the triangle the triangle has a base measure of 6 and a height of 4 so you do 4x6 divided by 2 to get 12 so you add your two areas and you have a total area of 30
Hernando ate 2/8 of a pizza for a dinner. he gave his 6 friends the rest of the pizza, and told them to share equally. To determine the fraction of the whole pizza that each of his friends received, Hernando performed the calculations below.
6/8 divided by 6= (6 divided by 6)/8= 1/8
he concluded that each person received 1/8 of the whole pizza. Are Hernando's calculations correct?
O yes they are correct. Hernando divided 6 by 6
O yes they are correct. Hernando divided 2/8 by 6
O No they are not correct. Hernando should have multiplied by 6, not divided by 6
O No, they are not correct. Hernando should have divided 8 by 6, not 6 by 6.
Answers
Answer:
O yes they are correct. Hernando divided 6 by 6
Step-by-step explanation:
yes there correct hernando divided 6 by 6
What is the absolute value of Point B labelled on the number line? A number line with point A at coordinate negative 2.2, point B at coordinate negative 1.6, and point C at coordinate 1.2. Drag and drop the answer into the box to match the correct statement. Number Plotted at Point B a. 1/35 b. 1/15 c. -1/35 d. -1/15 PLZ HURRY
Answers
Answer:
The absolute value of Point B labeled on the number line is 1.6.
Step-by-step explanation:
Data provided in the question
In a number line
A coordinates = -2.2
B coordinates = -1.6
And, C coordinates = 1.2
Now we have to determine the absolute value of point B
Here the absolute value means the real number that contains non-negative value
So if we assume the real number be x
So,
We need to find the absolute value of Point B labelled on the number line.
[tex]\vert x \vert= \vert -x\vert = x[/tex]
[tex]\vert - 1.6 \vert = 1.6[/tex]
So, the absolute value of point B is 1.6
This is the answer but the same is not provided in the given options
Given that the volume of a cube is given by the formula v=s³ what is the value of V if s=3 cm
1) 6 cm³
2) 9 cm³
3) 27 cm³
4) 54 cm³
Answers
It would be 3. 27 cm^3
2x+1<9
I need help with this question
Answers
Answer: x<4
Step-by-step explanation: Let's solve your inequality step-by-step.
2x+1<9
Step 1: Subtract 1 from both sides.
2x+1−1<9−1
2x < 8
Step 2: Divide both sides by 2.
2x /2 < 8 /2
x<4
use substitution to solve the system of equations.. PLEASE ANSWER AND EXPLAIN..asap
1. -5+y=-3
3x-8y=24
2. -3x-4y=2
x+2y=-2
Answers
Answer:
the answer to number one is (13.3,2)
the answer to number two is (2,-2)
Step-by-step explanation:
3x-8y=24
5+2=-3
3x40/3 -8x2 =24
-3=-3
24=24
(x,y) = (40/3, 2)
2. -3x-4y=2
x+2y=-2
-3(-2-2y) -4y=2
y=2
x=-2-2x(-2)
x=2
(x,y) (2.-2)
-3x2-4x(-2) =2
2+2 x(-2) =-2
2=2
-2=-2
(2,-2)
hope this helps:)
a man of mass 50 kg climbs up stairs each of height 0.2 m in 20 seconds .calculate the power of the man
Answers
Answer:
Given that ,
A man whose mass is 50kg climbs up 30 steps of a stair in 30s
each step is 20 cm high
Height at 30 steps , h=30×0.2=6 m
Change in potential energy , =mgh=50×10×6=3000 J
So, Work done by the man , W=3000 J
Power used , P=
t
W
=
30
3000
=100 W
Step-by-step explanation:
Bruno’s hourly salary is $6.75. Last week he worked a 20-hour week. How much did he earn?
Answers
Answer:
I think the answer is 135
Step-by-step explanation:
I'm not sure tell me if I'm wrong
Answer:
18.42c
Step-by-step explanation:
Suppose the average temperature for a 4‐day period in Chicago, Illinois, is ‐8Ԭ. After the next day, the 5‐day average is ‐9Ԭ. What was the low temperature for the fifth day? Explain your reasoning by showing your work or writing down your thoughts and answer.
Answers
Answer:
-13
Step-by-step explanation:
Given that:
Average temperature for a period of 4 days = - 8
Average temperature for a 5 day period = - 9
Temperature on the 5th day:
(total temp for the 4 days + 5th day temperature) / 5 = - 9
Let 5th day temperature = x
Total temperature for the 4 days = 4 * - 8 = - 32
(-32 + x) / 5 = - 9
-32 + x = - 45
x = - 45 + 32
x = - 13
can you help me with these questions please!? x + 5 = 22 and 2x + 8 = 12
Answers
Answer:
x=17
x=2
Step-by-step explanation:
Plz help me with math :(
Answers
Answer:
2.50, 4, 5-10, 20-25 apples
Step-by-step explanation:
Lisa bought a package of cookies that contained 12 cookies. She ate 3 of the cookies for dessert. What percentage of the 12 cookies did she eat for dessert?
Answers
Answer:
Step-by-step explanation:
12/3= 4 which is 1/3 of the package of 12
In mrs.smiths class every time you turn in 10 assignments you earn 1 homework pass.Write 3 equivalent ratios if turned in assignments.
Thanks!
Answers
Answer:
Step-by-step explanation:
For every 10 assignments you get 1 homework pass. So you would multiply them by two and up more.
So here's some of your answers:
10:1
20:2
30:3
40:4
50:5
60:6
70:7
80:8
90:9
100:10
You would just continue this pattern.
Change the following statements into coordinate points
Answers
Solution would be y value
a. (-1,1)
b. (2,7)
c. (1,-1)
c. (2,0)
What is the slope of the line y=1/8x-1
Answers
Answer:
1/8x ... -1 would be the y intercept so 1/8x is the slope
Hello there, hope you are having a splendid day. :)
y=1/8x-1
This equation is written in slope-intercept form, which looks like so:
y=mx+b
Where m is the slope (1/8) and b is the y-intercept (-1).
Hope it helps. Ask me if you have any queries.
~An emotional teen who helps others with joy :)
Good luck.
What is the probability that a randomly selected student has a cell phone and is from School B?
(Round to the nearest hundredth)
a. 0.21
b. 0.41
c. 0.62
Answers
Answer:
B
Step-by-step explanation:
Because there is 1000 people in total, the percentage of people in the school B with cellphones would be solved by finding 408/1000=.408. If you round .408 to the nearest hundredth, because the thousandth place is 8, it would round up to .41
Answer:
[tex]\huge\boxed{\text{(B)}\ 0.41}[/tex]
Step-by-step explanation:
This table will prove to be helpful to find the probability that a student has a cell phone and is from School B.
First off, we know that a total of 1000 students were interviewed, both from School A and from School B.
We also know that 479 of those 1000 were from School B (total on the right).
Looking further into School B, we can see that 408 students from school B have a cell phone.
Therefore, we can find the probability by finding 408 / 1000.
[tex]408 \div 1000 = 0.408 \approx 0.41[/tex]
Therefore, the probability that a randomly selected student is from School B and has a phone is 0.41, or 41%.
Hope this helped!
What does x equal in the solution
Answers
Answer: 2
Step-by-step explanation:
Answer:
y = − 5 x /2 + 2
y = 2 x − 7
Step-by-step explanation:
The awnser is -7
A bag contains 40 red and green marbles. The ratio of red marbles to
green marbles is 3 to 1. How many green marbles are in the bag?
A. 10
B. 15
C. 20
D. 30
Answers
Answer:
39/40
Step-by-step explanation:
Since 39 out of 40 marbles are green, the probability of randomly choosing green is 39/40.
However, the probability becomes 100% when you look into the bag and choose a green marble. (Unless you are blind or unable to distinguish blue from green, in which case the probability remains 39/40.)
Which pair of terms can be used to represent any two consecutive odd numbers? x and x + 1 x and x + 2 x and 2 x + 1 2 x and 2 x + 1 plz help I have six minutes left last question
Answers
Answer:
x + x + 2
Step-by-step explanation:
cuz if its consecutive odd then its every 2 numbers so if x = 3 then you add two to x
Answer:
B
Step-by-step explanation:
I am taking the quiz and also thx to the person that answered before me
Levens and frank shared a pizza levens ate 1/2 and frank ate 1/6 how much more did levens eat than Frank?
Answers
Answer:
the answer is 9
Step-by-step explanation:
julio's school is selling tickets to a spring musical. on the first say of ticket sales is the school sold 5 adult tickets and 2 child tickets for a total of $74 the school took in $86 on the second day by selling 5 adult tickets and 3 child tickets. find the price of an adult ticket
Answers
What makes a coordinate graph a function?
Answers
Answer:
the vertical line test makes or breaks if the graph is a function or not
Step-by-step explanation:
so if the line touches more than one point on the graph it is no longer a function i hope this helps mark brainlest if it helps pls
MATHHHH!!!!! HELPPP!!!
Answers
Answer:
Third One
Step-by-step explanation:
hello guys. plz answer and solve this question, I'm giving away 15 pts
Question:
x = a2 + b2/ab+1
Answers
Answer:
x = a³b + b²/ab + 1
Step-by-step explanation:
x = a² + b²/ab + 1
x = a² × (ab + 1) + b²/ab + 1
x = a³b + a² + b²/ab + 1
x = a³b + b²/ab + 1
Help plz:))) I’ll mark u brainliest
In less then 1m after you help me ;))))
Answers
The radius of a circle is 5 in. Find its area to the nearest tenth. Answer: A = 1 in? Submit Answer
Answers
First Answer:
Area= 78.54
Step-by-step explanation:
A=πr^2
pi = 3.14
