Answers
Answer:
93
Step-by-step explanation:
A + B +C = 180
75+51 + C =180
126 +C =180
C = 180-126 = 54
DCB : ACD = 2:1
DCB = 2x
ACD = x
2x+x=54
3x = 54 ; x = 54/3 = 18
DCB = 2x = 2 x 18 = 36
dcb + dbc + bdc = 180
51 + 36 + bdc = 180
87 + bdc = 180 ; bdc = 180 - 87 = 93
I hope im right!!
Answer:
the answer is 93°
Step-by-step explanation:
As you know that in a triangle,
angle1+angle2+angle3 = 180°
hence,
angle ABC + angle BAC + angle DCB + angle ACD ( Angle DCB + angle ACD = angle BCA) = 180°
75°+51°+2x+1x (let the ratio be x) = 180°
126°+3x = 180°
3x = 54°
x = 18°
2x = 36° = angle DCB
In triangle DCB,
51°+36°+angle BCD = 180°
angle BCD = 180°- 87°
Hence, angle BCD = 93°
Related Questions
if the point (x,y) is on the x-axis is it x=0 y=0
Answers
Answer:
You know that y must have to equal 0. x can be anything though.
Step-by-step explanation:
The x-axis is a straight line in the center of the y-axis where y = 0.
Graph the equation using the slope and y-intercept
y = 2x - 4
Answers
Slope: 2
y-intercept: (0,−4)
Make sure to like and leave a brainliest!
11 is the quotient of a number y and b
Answers
Is Figure B a scale copy of Figure A?
Answers
Answer:
yes
Step-by-step explanation:
Describe how to find the slope and y intercept of 2x+3y=6, then describe how would you graph the line.
Answers
Cynthia invests some money in a bank which pays
5% compound interest per year.
She wants it to be worth over £8000 at the end of 3
years.
What is the smallest amount, to the nearest pound, she can invest?
Answers
Answer:
£6911 is the smallest amount Cynthia should invest to get £8000 after three years
Step-by-step explanation:
lets Assume that amount needs to invested for three years = £ x Rate of Interest = R = 5% per year Duration in years = n = 3 year
Amount expected after three years when compounded annually = A = £8000 Formula for Amount of compound interest annually is a follows A = P( 1 + R/100)^n In our case Principal P = x , Amount A = 8000 , R = 5% and n = 3( since compounded annually). On substituting these values in above formula we get 8000 = x ( 1 + 5/100)^3 ⇒8000 = x ( 105/100)^3 ⇒8000 = x ( 21/20 )^3 ⇒(8000 × 20 × 20 × 20)/(21×21×21) = x ⇒x = 6910.70≈6911
Hence £6911 is the smallest amount Cynthia should invest to get £8000 after three years
SOMEONE HELP QUICK PLS
The point (-5, 10) undergoes a translation of 10 units right and 5 units down.
What are the coordinates of the new point?
A. (-10, 15)
B. (0,0)
C. (5, 15)
D. (5,5)
Answers
Answer:
5,5
Step-by-step explanation:
That's the answer.
.
Answer:
A -10,15
Step-by-step explanation:
You need to rent a bowling lane. On Friday nights, you have two options. Option A is a $20 lane rental plus $3 per game. Option B is a $35 lane rental with a maximum of 10 games. For what number of games is the total cost the same for each option. This is Algebra 1 by the way
Answers
Answer:
Option B
Step-by-step explanation:
Answer:
3 games to be equivilent
Step-by-step explanation:
to be the same, on the 20 dollar lane you can play 5 3 dollar games for the same price to play on the 35 dollar lane with 10 games.
Hope this helps
PLEASE HURRY AND HELP ME NOW ASAP
Answers
Answer:
jdjdjdbxjx byee-
can you answer this because i do not know
Answers
Answer:
3679
Step-by-step explanation:
11,472-7,793=3679 miles left
100 points! PLEASE ANSWER!
Write a system of equations or inequalities (whichever is most appropriate for the given context) for the scenario below. Be sure to precisely define the variables.
YOU DO NOT NEED TO SOLVE THE SYSTEM! JUST WRITE ONE!
Scenario:
Charlie the Chocolatier mixed chocolate chips and pretzels to create 36 pounds of his holiday blend that sells for $6.00 per pound. The chocolate chips cost $7.00 per pound and the pretzels cost $4.00 per pound. How many pounds of each did he use?
Answers
Answer:
x + y = 36 (1)
7x + 4y = 216 (2)
Step-by-step explanation:
Quanrity of Holiday blend = 36 pounds
Cost per pound of the blend = $6.00
Cost of chocolate chips = $7.00 per pound
Cost of pretzels = $4.00 per pound
Let
Pounds of chocolate chips = x
Pounds of pretzels = y
x + y = 36 (1)
7x + 4y = 36 × $6.00
7x + 4y = 216 (2)
The system of equation is
x + y = 36 (1)
7x + 4y = 216 (2)
Arianna has $0.90 worth of nickels and dimes. She has 4 times as many nickels as
dimes. By following the steps below, determine the number of nickels, x, and the
number of dimes, y, that Arianna has.
Answers
Answer:
X=3
Step-by-step explanation:
0.05(4x) + 0.1x = 0.90
0.2x + 0.1x = 0.90
0.3x = 0.90
x = 3
2/x= 10/15 BRAINLY it says find the unknown number in the proportion. Round the answer to the nearest hundredth when necessary
Answers
Answer:
x=3
Step-by-step explanation:
Answer:
x = 3
Step-by-step explanation:
For this, we cross multiply and divide
so it becomes:
2 x 15 = 10x
30 = 10x
Then divide both sides by 10 to isolate x
x = 3
Leslie bought an
ice cream cone for $5. She had a 20% off coupon. What was the total cost
of her ice cream?
Answers
Answer:
$1.00
hopefuly this helped if not let me know!
What is the area of this shape
Answers
Answer:
for the first time ever since I have been working on a project with the team at work and working on a new project which is a bit of an issue with my phone hhhhhhy is an idiot for the last minute or have been trying again and it is hard enough rather that we can I become more of an idiot and Predicate the way I am now a little worried that the definitions of this year will not hold up exercises for us is a very big part and I have attached my name for your class eda can be very difficult and difficult and Ihelp me with this, please!!!
Answers
Answer:
17 is already a simplest form so you can do a decemil form 0.17
Step-by-step explanation:
Answer:
10.68 miles
Step-by-step explanation:
17 mile radius = 34 mile diameter
34 mile diameter x 3.14 = circumference = 106.82 miles
Pi/5 radians = 36 degrees
36(106.82)/360 = 10.68 miles
What is the solution to this system of equations?
4x + 5y = 7
3x – 2y = –12
what is the solution
Answers
See the image below to see the steps
Use the greatest common factor and the distributive property to write equivalent expressions in factored form.
13ab + 15ab =
Answers
Given:
The expression is
[tex]13ab+15ab[/tex]
To find:
The equivalent expressions in factored form.
Solution:
We have,
[tex]13ab+15ab[/tex]
In the given terms 13ab and 15ab, then common factors are only a and b because 13 is a prime number. So, the greatest common factor is ab.
Distributive property of multiplication over addition:
[tex]a(b+c)=ab+ac[/tex]
By using greatest common factor and the distributive property, we get
[tex]13ab+15ab=ab(13+15)[/tex]
[tex]13ab+15ab=ab(28)[/tex]
[tex]13ab+15ab=28ab[/tex]
Therefore, the required equivalent expression is [tex]28ab[/tex].
Basil has five numbered cards.
Two of the numbers are hidden. 4 9 9 ? ? 8
The mode of the five numbers is 8.
The mean of the five numbers is 6
c) Work out the two hidden numbers.
Answers
Answer:
The two hidden numbers are 8 and 1.
Step-by-step explanation:
Mean of a data-set:
The mean of a data-set is given by the sum of all its values divided by the number of values.
Mode of a data-set:
The mode of a data-set is the value that appears the most.
In this question:
4, 9, x, y, 8
Mode is 8 means that at least one of them must be 8, so i will say x is 8 and we have:
4, 9, 8, y, 8
The mean of the five numbers is 6
This means that:
[tex]\frac{4+9+8+y+8}{5} = 6[/tex]
[tex]29+y = 30[/tex]
[tex]y = 30 - 29[/tex]
[tex]y = 1[/tex]
The two hidden numbers are 8 and 1.
plss help it's urgentt
Answers
Answer:
1. 25
Step-by-step explanation:
First, you need to place the numbers in ascending order, meaning from smallest to largest.
You calculate the range by taking the largest number and subtract the smallest from it, so in this case: 42-17 = 25
Mean (average), just add the numbers up and divide by how many numbers you have
III. Once you find the Mean and you placed them in order from smallest to largest, you can find this answer
Median (middle) - which number is in the middle so after you place them in order which is in the middle if you have an odd number of marks, but since you have 12 marks then take the 2 center numbers, add them up, and divide by 2, in other words, get the mean of the middle numbers and that will give you the median in this problem
Mode, which number appears the most times repeated
Answer:
i. 25 (range = the difference between the highest and lowest number)
ii. 30.41 (mean = sum of all numbers divided by the how many numbers there are)
iii. 6
iv. 35
v. 35
If 91 is 10% of a number, what is that number? *
Answers
Answer:
910
Step-by-step explanation:
so to find 100% ( the number)
91 x 10
910 would be the number
PLEASE HELP ME QUICK!!
Answers
Answer:
D
Step-by-step explanation:
Corresponding angles are the same angles for both sides.
Example: if a= 12, then b also = 12.
Im positive it's alternate interior because they are both inside on alternative sides
ANSWER THIS PLZ PLZ PLZ!!!
Answers
Answer:
answer is D
Step-by-step explanation:
window seat and the front are 8/12 which simplifies to 2/3. hope it helps
Answer:
2/9 is the probability that the passenger wants a window seat in the front of the plane
explainatio:
8 people want that particular seat and there are 36 passengers on the plane so 8/36= 2/9
Y= -4+9
A.(3,-3)
B.(2,3)
C.(0,9)
D.(2,1)
E.(4,5)
Answers
Answer:
➪
⚠︎ ☻︎
ℍ ꨄ︎
The answer is E (4,5)
-4 + 9= 5
therefore y must be 5 so it is E.
A ==(1,2,3,4)kumesinin elemanlarıyla en az iki basamagindaki rakami ayni olan üç basamaklı kaç sayi yazilabilir
Answers
Answer:
tüm duruma (4×4×4 den 64)
(tum durum)-(tum rakamlari farklı olan üç basamaklı sayilar) =en az iki basamağı ayni olan üç basamaklı sayılar
(4×4×4)-(4×3×2)=40Bernard built 15 model cars one year. He did not build as many model cars as his sister, Abby. In the inequality, n represents the number of model cars Bernard needed to build to have more than Abby.
Which number of model cars did Bernard need to build to have more model cars than Abby?
A.1
B.2
C.3
D.4
Answers
Answer:
The answer is 1
Step-by-step explanation:
Terra wants wall-to-wall carpeting in her bedroom, which measures 10’ x 12’6”. Carpeting is on sale for $24.99 per sq. yd. What is the cost? (Remember to round your dimensions before calculating the area)
Answers
Answer:
$347.08
Step-by-step explanation:
10' x 12'6" = 125 ft^2
one yd^2 = 9 ft^2
125/9 = 13.89 yd^2
13.89 x $24.99 = $347.08
Which sets of ordered pairs represent functions from A to B? (Select all that apply.)
A = {0, 1, 2, 3} and B = {−2, −1, 0, 1, 2}
A. {(0, 2), (3, 0), (1, 1)}
B. {(0, 0), (1, 0), (2, 0), (3, 0)}
C. {(0, −1), (2, 2), (1, −2), (3, 0), (1, 1)}
D. {(0, 1), (1, −2), (2, 0), (3, 2)}
Answers
PLEASE HELP... WILL GIVE BRAINLIEST
Answers
Answer:
the answer is B.
Step-by-step explanation:
hope this helps!
B) both bottom angles are 55 and the triangle’s angles should add up to 180, so 55 + 55 + x = 180. X = 70
C) CAE and CBD are equal so the bottom angle (that was calculated in A) will be the base acute angle —>55
Which represents the series in sigma notation?
-5+(-1)+3+7+11
Answers
Answer:
The third answer is correct
when you plug 1 into the equation
4(1)-9= -5
4(2)-9 = -1
4(3)-9= 3
Step-by-step explanation:
The sigma notation of the given series is [tex]\sum _{j=1}^5\:\left(4j-9\right)[/tex], option C is correct.
What is Sequence?Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.
The given series is -5+(-1)+3+7+11
The sigma notation of the given series is [tex]\sum _{j=1}^5\:\left(4j-9\right)[/tex]
Now let us check by plugging j values from 1 to 5
When j =1,
4(1)-9= -5
When j =2
4(2)-9 = -1
when j=3
4(3)-9= 3
Hence, the sigma notation of the given series is [tex]\sum _{j=1}^5\:\left(4j-9\right)[/tex], option C is correct.
To learn more on Sequence click:
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