Answers
Answer:
x = 40
Step-by-step explanation:
∠D = ∠ADB + ∠BDC
= 30 + 40
= 70°
In ΔBDC,
BD = CD
∠DBC = ∠DCB {angles opposite to equal sides are equal}
∠DBC + ∠DCB + ∠BDC = 180 {Angle sum property}
2∠DCB + 40 = 180
2∠DCB = 180 -40
2∠DCB = 140
∠DCB= 140/2
∠DCB = 70°
In ΔADC,
x + ∠D + ∠C = 180
x + 70 + 70 = 180
x + 140 = 180
x = 180 - 140
x = 40°
Related Questions
A woman put $580 into a savings account for one year. The rate of interest on the account was 6½%. How much was the interest for the year in dollars and cents? (Round to the nearest cent)
Answers
Answer:
Step-by-step explanation:
principal amount by women for savings = $ 580
duration = 1 year and rate of interest on it = 6 .1/2 % = 13/200
now amount of interest she'll be earning = $580 x 1 x 13 /200 = $37.7
thats 37 dollar 70 cents
What is the value of z?
Answers
answer is z=17
hope that helped loll
Answer:
17
Step-by-step explanation:
30+31=61
180-61=119
119/7=17
Help me I have a Timer
Answers
Answer:
14 x 10^6
Step-by-step explanation:
1.4×10^7
Blue box: 1.4
Exponent/Orange Box: 7
If your phone cord is wrapped up in a rectangle that is 2x1 feet, how far can it reach?
Answers
Answer:
6 feet
Step-by-step explanation:
You are basically finding the perimeter of this rectangle.
2+2+1+1 = 6
Find 3x-y-3z if x=-2, y=1, z=-2
Answers
Answer:
-
Step-by-step explanation:
Answer is - 1 , but can't show work with smart phone. Don't own computer.
Use my head for most numbers. Sorry
Suppose you are facing north, each time you turn, you are going to turn 90 degrees. If you turn 2 times to the right, 1 time to the left, 3 times to the right, 2 times to the right, and 1 time to the left, which way are you now facing?
Answers
Answer:
East
Step-by-step explanation:
Starting position = North
Condition = each time you turn, you are going to turn 90 degrees
Using the image attached as a guide;
If you turn 2 times to the right
- Turning the first time to the right changes the direction to East
- Turning the second time to the right changes the direction to South
1 time to the left
- Turning once to the left changes the direction to East
3 times to the right
- Turning the first time to the right changes the direction to South
- Turning the second time to the right changes the direction to West
- Turning the second time to the right changes the direction to North
2 times to the right
- Turning the first time to the right changes the direction to East
- Turning the second time to the right changes the direction to South
1 time to the left
- Turning once to the left changes the direction to East
7 Lanza is a gardener.
She has this plan of a garden.
9m
8m
Lanza needs to put grass turf to cover this garden.
She charges £16 a square metre to put grass turf in a garden.
Lanza thinks she will need to charge more than £800 to put grass turf in this garden.
Is she correct?
Show why you think this.
Answers
Answer:£872
Step-by-step explanation:
please help!! will mark brainlyest
Answers
SOLVE PLEASE!!!
A. If a person bikes .24 miles in 1 minute, how far can he bike in 90 minutes?
B. A store sells notebooks at 2 for $4.72. Mrs. Johnston needs to buy 11 for her 3rd period class. How much will she have to pay for all of them.
Please solve a AND b BOTH OF THEM THEN YOU'LL GET 100 points plus the drown.
Answers
Answer: A.1.5 hours = 90 minutes
B.2.4 x 9= 21.6 miles
Step-by-step explanation:
Write an equation that could be used to find how many miles a hybrid suv can travel in the city on 20 gallons
Answers
Answer:
m=36×20
Step-by-step explanation:
A hybrid SUV uses 36 miles per gallon in the city.
The equation that could be used to find how many miles a hybrid SUV can travel in the city on 20 gallons of gas is m=36×20.
What is the value of x?
55
105
A. 55
B. 500
C. 160°
D. 200
Answers
Answer:
c
Step-by-step explanation:
Write the ratio 5 to 8 as a fraction, decimal and percent.
omg please help
Answers
Answer: 5:8, .625, 62.5%
Step-by-step explanation:
5 to 8 is already a ratio. Then all you have to do is divide it. Then to get the percentage, move the decimal point over to the right 2 places.
Which relationship between x and y in the equation shows a proportional relationship?
A y=x/2 + 3
B y = 2x + 6
C y = 12x
D y=12/x
Answers
Answer:
the answer is c
Step-by-step explanation:
at least they got a relationship
PLEASE HELP!!! THIS IS DUE TODAY!
A three-bedroom house in Burbville was purchased for $210,000. Housing prices are expected to increase 2% annually in that town. Find the price of the house in 5 years. Show your equation (2 points), and then your answer (2 points).
Answers
Answer:
qjavaivsjsjajjsnssjskksjskskmamaansxbxk
Answer: y=210000(1+0.02)^5
y=231856.97
Step-by-step explanation:
210000 is the total cost and it increases by two percent and its asking how much it will be in 5 years so when you plug in the equation you should get y=231856.97.
Hope this helped
1+√1-x =(√2x +4)² ........
Answers
Answer:
x =−3.28642165
Step-by-step explanation:
Which of the following operations will not change the value of any non-zero number?
a. Adding 1
b. Dividing by 0
c. Multiplying by 1
d. Multiplying by 0
Answers
2) Find the volume of a container that measures 4 inches long,
5 inches high, and 8-inches wide.
Answers
Answer:
160 inches
Step-by-step explanation:
4*5*8=160
Pls answer b and c for my brother
Answers
Answer:
B and C
Step-by-step explanation:
Answer:
this was hard
Step-by-step explanation:
1b. 7 1/2
2b. 9 3/4
3b. 6 1/2
4b. 2 2/3
5b. 3 1/3
6b. 9 3/4
7b. 8 6/7
8b. 5 2/3
9b. 3 3/5
10b. 28
1c. 8 4/5
2c. 8 2/3
3c. 5 2/3
4c. 2 1/3
5c. 5 1/2
6c. 2 3/7
7c. 7 4/5
8c. 8 1/2
9c. 2 3/4
10c. 122
8 pens cost £4.72
How much would 13 pens cost?
Answers
Answer:
$7.67
Step-by-step explanation:
So if 8 pens cost $4.72, one pen would cost $0.59. 0.59 x 13 will be equal to 7.67.
Answer:
13 pens would cost £22.
Step-by-step explanation:
8 divided by 4.72 is equal to 1.70 (Estimated)
13 times 1.7 is equal to 22 (Estimated)
Not Estimated
8 divided by 4.72 is equal to 1.69491525424
13 times 1.69491525424 is equal to 22.0338983051
ABC is a straight angle.
Find ABX and CBX .
Answers
Answer:
Step-by-step explanation:
14x+70+20x+8 =180
34x + 78 = 180
34x = 102
X = 3
ABX 14(3)+70 = 112
CBX = 20(3) +8= 68
PLEASE HELP DUE IN 15 MINS
Answers
Answer:
22) 3 in<x<11 in
23) 8 cm<x<26 cm
24) 0 ft<x<10 ft
25) 9 m<x<31 m
26) 2 km<x<14 km
27) 13 in<x<61 in
Step-by-step explanation:
It has to be greater than the difference and smaller than the sum.
22) 7-4=3, 4+7=11, so the answer is 3<x<11
23) 8<x<26
24) 0<x<10
25) 9<x<31
26) 2<x<14
27) 13<x<61
In this triangle, what is sin 30°? What is sin 60°? What is the product of sin 30° and sin 60°?
Answers
Answer:
1800
Step-by-step explanation:
60.30= 1800
Subject:Mathematics
Answers
F10
Find the gradient of the line segment between the points (-2,-2) and (0,-6).
2
Answers
Answer:
-2
Step-by-step explanation:
M = (y - yo/x - xo)
(-6 + 2) / (0 + 2)
-4 / -2
= - 2
What is the multiplicative inverse 23/7?
Answers
Answer:
7/23
Step-by-step explanation:
HELP I NEED HELP ASAP
Answers
Evan measured a line to be 17.5 inches long. If the actual length of the line is 16.7
inches, then what was the percent error of the measurement, to the nearest tenth of a
percent?
Answers
Answer:
3.6%
Step-by-step explanation:
1 markers cost $7.04
Which equation would help determine the cost of 7 markers!
Answers
Explain how you would solve the equation. Justify each step.
d ÷ 9 = 8
Answers
There is 1/ 3 gallon of water in a 3-gallon container. What fraction of the container is filled?
Answers
Step-by-step explanation:
2/3 gallons is empty
1/3 gallons is filled
so
3*1/3= 1
1 gallon filled
Answer:
1/9
Step-by-step explanation:
if it is only 1/3 of 1 gallon, then multiply 3 by 3 to get 9, then you have 1/9