Answers
Answer:
x = 20°
Step-by-step explanation:
Since BD = CD then Δ BCD is isosceles and its base angles are congruent, so
∠ CBD = ∠ BCD = 80° , then
∠ BDC = 180° - (80 + 80)° = 180° - 160° = 20°
∠ ADC = 180° - (80 + 60)° ← sum of angles in triangle
∠ ADC = 180° - 140° = 40° , then
∠ BDC + x = 40°
20° + x = 40° ( subtract 20° from both sides )
x = 20°
Related Questions
During a test flight, Jeri's rocket reached a height of 18 yards. This was 7 yards less than the height of Devon's rocket. Write and solve a subtraction equation to find the height of Devon's rocket.
Answers
Answer:
23 yards
Step-by-step explanation:
During a test flight, Jeri's rocket reached a height of 18 yards. This was 7 yards less than the height of Devon's rocket. Write and solve a subtraction equation to find the height of Devon's rocket.
Let us represent the height of Devon's rocket = x
18 yards = x - 7 yards
x = 18 yards + 7 yards
x = 23 yards
The height of Devon's rocket = 23 yards
Most kitchens have a working triangle between the sink (S), the counter (C) and the oven (O). The distance between the sink and the oven is 8 feet. The distance between the sink and the counter is 6 feet and the distance between the oven and counter is 7 feet. In the kitchen triangle, where is the largest angle?
(A) - All of the angles are congruent
(B) - oven
(C) - counter
(D) - sink
Answers
Answer: It’s C
Step-by-step explanation:
A bag contains colored tiles
3 tiles are red
6 tiles are green
3 tiles are blue
A tile is randomly selected from the bag what is the probability in decimal form that the tile selected will be green
Answers
Answer:
0.5
Step-by-step explanation:
6 is half of the tiles
A large pizza at Palanzio's Pizza starts at $6.80 with a $0.90 charge per extra topping. A large pizza a Guido's Pizza starts at $7.30 with a $0.65 charge per extra topping. How many toppings will need to be added for the price of the pizzas to be the same?
Answers
Answer:
Palanzio's Pizza: Y= .90x+6.80
Giudo's Pizza: Y= .65x+7.30
.90x + 6.80= .65x + 7.30
.25x + 6.80= 7.30
.25x = .50
x = 2
9, 14, 7, 9, 3, 12, 5,4
Find the mean and median travel times for these students.
If necessary, round your answers to the nearest tenth
Mean: _ minutes
Median: __ minutes
Answers
Answer:
mean: 65
median: 9
Step-by-step explanation:
You take all the numbers you have and add them up. Make it simple by adding smaller numbers together. Then once you have the total which is 65 you divide it by the total of numbers you have and then round because after dividing you get 8.125 and the safest way to round is to 9.
use factor form to find the x-intercepts y=x^2+11x+24
Answers
Answer:
(8,0) and (3,0)
Step-by-step explanation:
if there are 12 inches in a foot, and each brick is 2 inches wide, how many bricks would it take to make 1 foot?
Answers
Answer:
6 bricks
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
12 divide by 2 you will get six or skip count by 2 and when you get to 12 count how many numbers you have then you will get the answer
At a school cafeteria a cold lunch costs $1.80, and a hot lunch costs $3.00. During one school year a teacher spent
a total of $288.60 on cold lunches and hot lunches. The number of cold lunches the teacher bought was 1 fewer
than twice the number of hot lunches the teacher bought.
Which system of equations can be used to find c, the number of cold lunches, and h, the number of hot lunches, the
teacher bought during the school year?
Answers
Find the area of a circle which has a diameter of 26 centimeters.Round to the nearest hundredth (2 spaces beyond the decimal)
Answers
Answer:
531 cm^2 approx
Step-by-step explanation:
Given data
Diameter= 26 cm
radius= d/2= 26/2= 13 cm
Area= πr^2
substitute
A= 3.142*13^2
A= 3.142*169
A= 530.998
A= 531 cm^2 approx
Value of x? I need this very quickly.ASAP.
Answers
Answer:
x = 5
Step-by-step explanation:
The sum of the angles of a triangle is 180°.
(180 - 18x + 5) + (-1 + 8x) + 46 = 180
⇒ 180 - 18x + 5 - 1 + 8x + 46 = 180
⇒ -10x + 230 = 180
⇒ -10x = -50
⇒ x = 5
Find the volume of this cuboid.
6 cm
8 cm
10 cm
Answers
Answer:
480 cm 3
Step-by-step explanation:
Length x Weight x Height
How would I do this?
Answers
Answer:
Refer to explanation..
Step-by-step explanation:
Since x represent same number when if it is used multiple times..
40 - 3 - 3 = 34 (Find out how many is 4 x)
4x = 34
X = 34 ÷ 4 = 8.5
I don't know what the question is finding for, if it's breadth then it's 8.5, if it is finding length..
Length = 8.5 + 3 = 11.5
simplify completly 3x+12/10 multiplied by x+2 /x^2 +6x +8
Answers
Answer:
3x+12/10 simplified is =3x+ 6 /5
Step-by-step explanation:
x+2 /x^2 +6x +8= 7x3+8x2+2 x2
Find the center and radius given the equation of a circle:
(x + 2)2 + (y - 4)2 = 81
Answers
center is (-2,4)
Can someone help me out please??
Answers
HELP HELP HELP CRIES
Answers
Answer:
1. complementary
2. not complementary or supplementary
3. not complementary or supplementary
4. complementary
5. supplementary
Step-by-step explanation:
You can tell if two angles are complementary if their combined angle values add up to 90 degrees
[tex]A+B=90[/tex]
You can tell if two angles are supplementary if their combined angle values add up to 180 degrees
[tex]A+B=180[/tex]
If they don't add up to these values then they are neither complementary nor supplementary
[tex]A+B\neq 90[/tex] [tex]A+B\neq 180[/tex]
plz mark me brainliest. :)
(16/25)-3/2 help me solve
Answers
Answer:
-43/50
(decimal) = -0.86
Step-by-step explanation:
Find the LCD which is 50.
16/25 will be multiplied by 2 (because 25 x 2 = 50) so it will then equal 32/50
3/2 will be multiplied by 25 (2 x 25 = 50) = 75/50
subtract them which will give you -43/50
Rich bought 4 ice cream cones for his kids. The
chocolate cones cost $1.75 each. The
strawberry cones cost $1.30 each. Rich spent
$6.55 in all. How many chocolate (c) and how
many strawberry (s) cones did he get?
Answers
explanation: $1.75 x 3 = $5.25
$5.25 + $1.30 = $ 6.55
hope this helps :)
Help on this math question ♀️
Answers
Answer:
the 2nd 3rd and 4th answers are the correct ones
Step-by-step explanation:
hope this helps you
1. Complete the table with the perimeter of a square for each given side length
Side length (inches) perimeter
0.5=?
7=?
20=?
Answers
Answer:
Step-by-step explanation:
2,28,80
Answer:
2
28
80
Step-by-step explanation:
You burned a CD of your music and then created an artistic CD label
for it. Your friends liked it so much that they all asked if you would make CD labels
for the CDs of their music. So far, it has taken you 6.5 hours to create 3 CD labels.
How long will it take to create 4 more labels? Round your answer to the nearest tenth.
Answers
Answer:
I think it's 8.7
Step-by-step explanation:
if you divide 6.5 by 3, you get 2.16666666667, so that is how long it takes to make 1 CD liable. Multiple that by 4 and round and you get 8.7.
If I'm wrong I apologize :(
can anyone please help me please ?
Answers
-2(4x - 4) + x
Need help
Show work
Answers
Answer:
Distribute:
=(−2)(4x)+(−2)(−4)+x
=−8x+8+x
Combine Like Terms:
=−8x+8+x
=(−8x+x)+(8)
=−7x+8
Step-by-step explanation:
Answer:
x
2
−4x+4=0
To solve the equation, factor x
2
−4x+4 using formula x
2
+(a+b)x+ab=(x+a)(x+b). To find a and b, set up a system to be solved.
a+b=−4
ab=4
Since ab is positive, a and b have the same sign. Since a+b is negative, a and b are both negative. List all such integer pairs that give product 4.
−1,−4
−2,−2
Calculate the sum for each pair.
−1−4=−5
−2−2=−4
The solution is the pair that gives sum −4.
a=−2
b=−2
Rewrite factored expression (x+a)(x+b) using the obtained values.
(x−2)(x−2)
Rewrite as a binomial square.
(x−2)
2
To find equation solution, solve x−2=0.
x=2
Step-by-step explanation:
hope this helped heres a graph
just the answer Please hurry
Answers
Answer:
We have been given that a car can travel 476 miles on 14 gallons of gas and we are asked to write an equation relating the distance d to the number of gallons g.
We can set an equation as distance traveled is directly proportional to number of gallons used in travelling that distance.
Now we will find out K(number of miles traveled in one gallon of gas) by substituting our given values in this equation.
Therefore, we can see that car travels 34 miles in one gallon of gas.
Now we can use this information to find out how many gallons of gas does this car need to travel 578 miles.
Let us divide number of miles to be traveled by number of miles traveled in one gallon of gas to find out number of gallons of gas needed.
Therefore, car need 17 gallons of gas to travel 578 miles.
Step-by-step explanation:
Step-by-step explanation:
476=14
578=X
578*14/476
8092/476=17
So the answer is 17 gallons
Enter a digit in each box to complete the division problem.
please help
Answers
Answer:
There is no box
Step-by-step explanation:
Please help me answer this I put 18 points that’s how much your gain if you answer
Answers
Answer:
2) 520
3) 135
4) 490
5) 850
Step-by-step explanation:
2) 10 regular for every 2 premium. so 12 total. Then we do 624 divided by 12 so we get 52. So we multiply 10 by 52 and 520. So they have 520 regular subscribers.
3) 3 short sleeves for every 9 long sleeves. So 12 in total. 540 divided by 12 is 45. 45 times 3 is 135. So 135 short sleeves were sold.
4) 7 teens for every 2 adults. so 9 in total. 630 divided by 9 is 70. 70 times 7 is 490. So 490 of the people who voted were teens.
5) For every 10 songs he like there was 5 he disliked. So 15 in total. 1275 divided by 15 is 85. 85 times 10 is 850. He liked a total of 850 songs.
I hope I helped! <3
Sam has 2 1/2 pounds of blueberries. Ben also has some blue berries. Together, they have 4 2/3 pounds of blueberries.
Answers
Answer:
2 1/6 berries
Step-by-step explanation:
Sam has 2 1/2 pounds of blueberries. Ben also has some blue berries. Together, they have 4 2/3 pounds of blueberries
Total number of berries = Number did berries Sam has + Number of Berries Ben had
The number of berries Ben had =
4 2/3 - 2 1/2
2 ( 4 - 3/6)
2 1/6 berries
Writing Polynomial Functions
Write the equation of the polynomial function given the following zeros.
x = 5, -2, -1
Answers
Answer:
Step-by-step explanation:
If the zero occur when x={5, -2, -1} then the equation must be
(x-5)(x+2)(x+1) if expansion is desired
(x^2-3x-10)(x+1)
x^3+x^2-3x^2-3x-10x-10
x^3-2x^2-13x-10
How would I do this?
Evaluate the expression:
₉P₄
Answers
Answer:
3024
Step-by-step explanation:
It is basically asking how many ways you can order something so you're gonna need a calculator.
PLEASE HELP ASPA WILL GIVE BRAINLEAST!!!!
What are m∠1 and m∠2?
A.m∠1 = 30°, m∠2 = 35°
B.m∠1 = 35°, m∠2 = 30°
C.m∠1 = 65°, m∠2 = 60°
D.m∠1 = 85°, m∠2 = 80°
Answers
Answer:
B
Step-by-step explanation:
First find the third angle straight linear make 180° so
180°-115°=65°
So 80°+65°+X=180°..triangle measure 180°
145°+X=180
X=180-145
X=35°
The second one. Again straight linear measure 180° so
180°-115°=65°
65°+85°+ Y=180°
150°+ Y=180°
X=180°-150°
Y=30°