Answers
Step-by-step explanation:
Angle ACO = 140° - x. (Sum of angles in a triangle is 180°)
Now draw the line OD. The triangles ODC and OBC are congruent via the SSS congruence property. (OD and OB are both the radius of semicircle, common side OC, and side CD = CB is given)
Hence Angle BCO = Angle ACO = 140° - x.
Since triangle OBC is an isosceles triangle with OC = OB, this means that Angle CBO is also 140° - x.
By Exterior Angle theorem,
we have Angle AOC = Angles BCO + CBO
=> x = (140° - x) + (140° - x)
=> 3x = 280°
=> x = 280°/3. (B)
Related Questions
pls help!!
Find the area. Simplify your answer.
3x
3x
Answers
Answer:
9[tex]x^{2}[/tex]
Step-by-step explanation:
The area of a parallelogram is equal to the base times the height.
The base is 3x and the height is also 3x so the area will equal
3x × 3x
When you multiply variables you multiply the coefficients and add the exponents so when you multiply 3x and 3x you multiply 3 and 3 and the exponents 1 and 1 so you get 9[tex]x^{2}[/tex]
2*10⁴-7³ please help me
Answers
Answer:
19657
Step-by-step explanation:
By PEMDAS, we know we have to do 2* 10⁴ and then subtract the 7³. This gives us 19657.
Answer:
195657 is the answer according to my calculation.
Kris drove 92 miles from La Verne to Encinitas and used only 4 gallons of gas. What is the unit rate (miles per gallon)
Answers
wait
am writing answer Step-by-step explanation:
Answer:
23 miles per gallon
Step-by-step explanation:
92/4=23
How would you write 5,697,000 in scientific notation?
Answers
Answer:
5.697 × 10^6
Step-by-step explanation:
None.
Answer:
Convert a number to and from scientific notation, e notation, engineering notation and real numbers. Enter a number or a decimal number or scientific notation and the calculator converts to scientific notation, e notation and engineering notation formats.
To enter a number in scientific notation use a carat ^ to indicate the powers of 10. You can also enter numbers in e notation. Examples: 3.45 x 10^5 or 3.45e5.
Step-by-step explanation:
PLEASE ANSWER THIS ASAP!I will mark the brainiest!
Answers
Answer:
D
Step-by-step explanation:
You have to keep in mind that the opposite side length depends on the size of the angle. If you are comparing side lengths, the smaller side length will have a smaller corresponding angle. That being said angle J needs to be smaller than 82, and larger than 0.
Use algebra to determine that x has to be greater than 3 in order to be above 0. X also has to be less than 44 in order to be less than 82.
What is 3/4 minus 2/5
Answers
Answer:
1.-1
Step-by-step explanation:
3/4-2/5 line them up and subtract acroseeed so 3-2 is 1 and 4-5 is -1 so its 1.-1
Answer:
[tex]\frac{7}{20}[/tex] ↢↢ This The Answer
Step-by-step explanation:
[tex]\frac{3}{4} - \frac{2}{5}[/tex]
Simplify 4x + 8 + 2x − 7.
Answers
Answer:
6x+1
Step-by-step explanation:
1. Add the x
4x+2x=6x
2. Add the numbers
8-7=1
3. Add everything
6x+1
Hope this helps!
Answer:
negative 2x-15
Step-by-step explanation:
hope this helps
A 10-mile bike race is divided into 4 equal sections.
Which equation shows how to find the number of miles in each section?
Math item stem image
CLEAR CHECK
4÷10=410 mile
4÷10=104 miles
10÷4=410 mile
10÷4=104 miles
Answers
Answer:
Step-by-step explanation:
read the question it says
a 10 mile bike rade is DIVIDED into 4 equal sections
10 DIVIDED BY 4
10÷4=104 miles
Doug has two German Shepherds. The
larger dog weighs 70 pounds. If the
smaller dog weighs 75% as much as the
larger dog, find the smaller dog's weight.
lol help.
Answers
PLEASE HELP ME AND STOP USING ME FOR POINTS THIS IS FOR MY GRADE .
Answers
Answer:
11
Step-by-step explanation:
11 since all sides are the same exact length
Answer: C
Step-by-step explanation:
8 is the smallest number so most likely it´s right. I would choose C.
3x=9+3y please solve with the steps so I can learn
Answers
Answer:
If you want to solve for x, then it is x=3+y
If you want to solve for y, then it is y=x-3
Step-by-step explanation:
You want to isolate the variable you are solving for. If you are solving for x, you don't have to isolate it because it is already on its own side. You only have to divide by 3 to take away the 3 from the x but make sure do whatever you do on one side to the other side to make sure its still equal. After you divide 3 on both sides, you end with x=3+y.
X+3x-3+2x²+8-5x
Options 1,2,3 or 4?
Answers
Hope this helps
Have a great day/night
Which of the following statements about AB and AC is true?
Answers
Answer:AB is longer than AC
Step-by-step explanation:AP3X
Answer:
c
Step-by-step explanation:
I just did it on A.P.E.X.
The trailer ramp is shaped like a triangle prism . The height of the ramp is 14 inches and the volume of the ramp is 4704 inches 3. What is the area of the base of the trailer ramp in the square centimeters?
Answers
Answer:
A = 2167.73 cm²
Step-by-step explanation:
Given that,
A trailer ramp is in the shape of a triangular prism.
the height of the ramp, h = 14 inches
The volume of the ramp, V = 4704 inches²
We need to find the area of the base of the trailer ramp.
The volume of the triangular prism is given by :
[tex]V=A\times h[/tex]
A is area of base and h is height
[tex]A=\dfrac{V}{h}\\\\A=\dfrac{4704}{14}\\\\A=336\ \text{inches}^2[/tex]
or
A = 2167.73 cm²
So, the area of the base of the ramp is 2167.73 cm².
How long does it take a runner to run 840 meters if they run at an average speed of 6 m/s.
Answers
PTION #3(20pts): The last option is by Plane Cargo. You cannot seem to find rates on their website, but a service representative was able to tell you that a 100-mile flight will cost $600, and a 250-mile flight will cost $825.
Answers
Answer:
Rate for 100 miles = $ 6 / miles
Rate for 250 miles = $ 3.3 / miles
Step-by-step explanation:
Given that cost for covering 100 miles by flight is $600.
As rate is the cost of covering unit distance (in miles).
So, the rate to cover 100 miles by flight = $ 600/ 100 miles = $ 6 /miles.
Similarly, the cost of covering 250 miles by flight is $825.
So, the rate to cover 250 miles by flight = $ 825/ 250 miles = $ 3.3 /miles.
Fill in the blanks in the proof please need ASAP
Answers
Answer:
3. FI ⊥ GH, right angle of 90°
5. same segment
6. SAS
Step-by-step explanation:
A painter painted about a sixth of a room in a sixth of a day. Coley estimated the painter would paint 5 rooms in 5 days. Is Coley's estimate reasonable? Complete the explanation.
Answers
The answer is "Yes", the estimate done by Coley is reasonable, it will take 5 days to paint 5 rooms.
What are arithmetic operations?The four basic operations of arithmetic can be used to add, subtract, multiply, or divide two or even more quantities.
They cover topics like the study of integers and the order of operations, which are relevant to all other areas of mathematics including algebra, data processing, and geometry.
As per the given information in the question,
A painter painted about a sixth of a room in a sixth of a day. It means that 1/6 room is painted in 1/6 of the day so, a whole room is painted in 1 day itself.
So, the time to paint 5 rooms will take 5 days.
To know more about arithmetic operations:
https://brainly.com/question/13585407
#SPJ5
6785∆4 is a 6-digit number with one of its digit represented by ∆. What can be the value of ∆ if 6785∆4 is divisible by 9
Answers
Answer:
The value of the missing digit is 6.
Step-by-step explanation:
When a number is divisible by 9, the sum of the digits must be 9 or a multiple of 9.
Given digits = 6785∆4
the sum of the digits = 30 + ∆
30 + ∆ = 36
∆ = 36 - 30
∆ = 6
Thus, the value of the missing digit is 6.
3. Show how 10 - 6 helps you solve 50 - 6.
Answers
Answer:
10 - 6 equals 4
50 - 6 = 44
It helps you use 4 again.
That is how it helps you.
Step-by-step explanation:
What is the standard form of the equation y = −x − 2?
Answers
Heelp. I will give brainliest to whoever answers correctly.-
Answers
Answer:
Deliah: 1701/9=189
Dakoda: 1479/9=164.33
Coach should choose Deliah.
Step-by-step explanation:
mean= all the numbers added up/ how many numbers there are
PLEASE HELP
When solving an algebraic expression, our goal is to get the variable _______________ on one side of the equal sign.
Answers
Answer:
Isolated
Step-by-step explanation:
When solving one-variable algebraic expressions isolating the variable on one side gives you its value on the other side.
The sum of the measures of the angles shown is 81°. Which is the measure of angle y?
Answers
Answer:
55
Step-by-step explanation:
You can do:
81 - 26 = 55
The sum of the angles (81) minus the angle that is represented (21)
Answer:
55
Step-by-step explanation:
Since the sum of the two angles is 81, i did
81- 26=55
can you help me please
Answers
Answer:
Step-by-step explanation:
1) 6x + 2y = -4
2y = -6x - 4
[tex]y = \frac{-6x}{2} - \frac{4}{2}[/tex]
Ans: y = -3x - 2
2) [tex]y - y_{1} = (\frac{y_{2}-y_{1}}{x_{2}-x_{1}})(x - x_{1})[/tex]
3) y - y1 = m(x - x1)
4) y = mx + b
What are the coordinates of point A (−234,1) after it is reflected across the x-axis?
Answers
Answer:
(-234, -1)
Step-by-step explanation:
Answer:
(-234,-1)
Step-by-step explanation:
Reflecting across x-axis means negative y, across y-axis means negative x
If I can run 1/4 mile in 3 minutes how long would it take me to run 26.2 miles?
Answers
There is four 1/4's per mile.
This means you run 1 mile in 3 x 4 = 12 minutes.
Multiple minutes per mile by total miles:
12 minutes per mile x 26.2 miles = 314.4 minutes.
1 hour = 60 minutes:
Divide total minutes by 60 to get hours:
314.4 minutes / 60 minutes per hour = 5.24 hours.
Multiply the decimal part of the hour by 60 to get the minutes:
0.24 x 60 = 14.4 minutes = 14 minutes and 24 seconds.
Total time = 5 hours, 14 minutes and 24 seconds.
The expression -120 + 13m represents a
submarine that began at a depth of 120 feet
below sea level and ascended at a rate of
13 feet per minute. What was the depth of the
submarine after 6 minutes?
Answers
Answer: 42 feet below the sea level
Step-by-step explanation: To solve for the depth, simply just plug in 6 into the equation by substituting "m" since the variable represents minutes, and the submarine has been traveling for 6 minutes.
f(6) = -120 + 13(6)
f(6) = -120 + 78
f(6) = -42
When solved, the answer is 42.
what is the slope of the line?
Answers
Answer:
8\5 is the answer 8 is the rise and 5 is the run
Answer:
[tex]-\frac{8}{5}[/tex]
Step-by-step explanation:
The coordinates of the top black point are (-1, 4). The coordinates of the bottom black point are (4, -4).
You can work out the slope by dividing the difference in both y-coordinates by the difference in both x-coordinates:
[tex]\frac{4-(-4)}{-1-4} =\frac{8}{-5}=-\frac{8}{5}[/tex]
Which represents a function?
A {(-2, 1). (0, 2), (1,3), (1.4)}
B {(-1,5),(-1,6). (1,5), (1.6)}
C
{(3, 1). (3. 4). (3.5), (3,9)}
D{(4.8). (5. 1). (7.3).(8.6)}
Need Help ASAP
Answers
Answer:
C
Step-by-step explanation:
Please mark me brainlist