Answers
Explanation:
Because angle ADC is 40 degrees, angle CAD is also 40 degrees. This is because lines CD and CA are the same length.
Angle CAD is equal to Angle BCA because they are vertical angles. This makes angle BCA 40 degrees.
Angle BAC is equal to BCA because the lines BA and BC are equal. This makes angle BAC 40 degrees.
You now know 2 angles of the triangle ABC. Knowing that all angles in a triangle add up to 180 degrees, subtract the other two angles to get angle ABC. 180-(40+40)= 100. This makes angle ABC equal 100 degrees
Related Questions
The equation d=m/v can be used to calculate the den
Answers
yes you are right, density formula is :
density = mass ÷ vol
Brainliest for correct answer
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Answer:
Hey there!
The error in this congruence statement is that we don't know if these are actually congruent.
Saying that the triangles "look the same" simply isn't enough. We do know that all three angles are the same, but the AAA (Angle Angle Angle) postulate only works for similar triangles.
Additionally, even if they were congruent, it would still be triangle ABC ≅ triangle FED, not triangle DEF.
Let me know if this helps :)
Answer:
The wrote the order wrong so they are not congruent until you fix their mistake
Step-by-step explanation:
ABC~ FDE
HELLPPPPPPPPP WITH THE TOP THREE PLS
Answers
Answer:
9) Domain: 0≤x≤6
Range: -3≤y≤3
10) Domain: -∞≤x≤∞
Range: -∞≤y≤∞
11) Domain: -∞≤x≤∞
Range: y≥-2
13) Domain: -∞≤x≤∞
Range: -2≤y≤4
Step-by-step explanation:
9) Domain: 0≤x≤6
Range: -3≤y≤3
10) Domain: -∞<x<∞
Range: -∞<y<∞
11) Domain: -∞<x<∞
Range: y≥-2
13) I think you need to look at this one again. It looks like:
Domain: -∞<x<∞
Range: -2≤y≤4
A carpenter and his assistant can do a piece of work in 3 days. If the carpenter himself could do thework alone in 5 days, how long would the assistant take to do the work alone?
Answers
Answer:
7 1/2 days
Step-by-step explanation:
The carpenter can do 1/5 of the work in 1 day. The assistant, who takes 'a' days to do the work, can do 1/a of the work in 1 day. Together, they can do 1/3 of the work in 1 day:
1/5 + 1/a = 1/3
1/a = 1/3 -1/5 = 2/15
a = 1/(2/15) = 15/2 = 7.5
The assistant takes 7.5 days to do the work alone.
simplify the fraction 56/100
Answers
which expression has the same value as 3y+2x
a. 3y+(-2x)
b.-2+3y
c.2x-(-3y)
d.-3y-2x
Answers
Answer:
Hey there!!
Your required answer is option C.
The reason is;
In option A when you simplify the signs, you will get it as 3y-2x.In option B it's totally not matching. In option C, when you simplify the signs, you will get as 2x + 3y {as( - )× (- )= (+)}.Option D is not matching.Therefore, the possible answer is option D.
Hope it helps...
Solve x^2=64. What property did you use?
Answers
Answer:
x = ± 8 using the square root property
Square root both sides to get x = ± 8.
Simplify: | 5\6 - 7\2 | - | 5\3 |
Answers
Answer:53 over 30
Step-by-step explanation:
Solve the equation 1/2(2x+2)-1/4(3x-1)=15
Answers
Answer:
it is algebraic expression
Which of the following options have the same value as 65% of 20?
Answers
B
...........................
Answer:
It is A and D
Step-by-step explanation:
65% of 20 is also
.65 * 20 or
65/100 * 20
I did Khan Academy too :)
solve 9x - y = 45 for y
Answers
Answer:
y=9x-45
Step-by-step explanation:
9x-y=45
-y=45-9x
y=9x-45
Find sin 0.
15
8
0
please help! very important
Answers
Answer:
D
Step-by-step explanation:
In the phrase SOH - CAH - TOA, the SOH stands for "Sine = opposite / hypotenuse", hence, the answer would be 15 / 8.
Answer: for me the answer was 15/17
Step-by-step explanation:
x^2-15x+26 factoring need help
Answers
Answer:
x^2 - 2x - 13x + 26 = (x-2)(x-13)
Step-by-step explanation:
x^2 - 15x + 26 = x^2 - 2x - 13x + 26 = (x^2 - 2x) - (13x - 26)
= x(x-2) - 13(x-2) = (x-2)(x-13)
A dripping tap loses 10mL of water every 45 seconds. How much water
will be lost in 6 hours?
Answers
Answer:
4800 ml
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask :)
Answer:
4.8 L
Step-by-step explanation:
6 hours = 6*60*60 seconds = 21600 seconds
10 mL - 45 seconds
x mL - 21600 seconds
x = (21600*10)/45=4800 mL
4800 mL = 4.8 L
36. GEOMETRY Write an algebraic expression to
represent the area of the triangle. Then evaluate it to
find the area when h = 12 inches.
Answers
Answer:
108 in²
Step-by-step explanation:
Area of a triangle is given as ½*base*height
The base of the given triangle = h + 6
height = h
Algebraic expression for its area = [tex] \frac{1}{2}*(h + 6)*h = \frac{1}{2}(h^2 + 6h) = \frac{h^2 + 6h}{2} [/tex]
Evaluate the area if h is given as 12 inches.
Plug in the value of h into the algebraic expression:
[tex] \frac{h^2 + 6h}{2} = \frac{12^2 + 6(12)}{2} [/tex]
[tex] = \frac{144 + 72}{2} [/tex]
[tex] = \frac{216}{2} = 108 in^2 [/tex]
Item 4
Solve the equation.
23h−13h+11=8
h=
Answers
please help meeeee!!!!!!! complete the equation below. 5x+5x=10x____
Answers
5x5 - 10x = 5x • (x4 - 2)
A 9-pack of toaster pastries costs $3.60. What is the unit price?
per pastry
Answers
Answer:.40 cents
Step-by-step explanation: divide the total cost by the amount of items you have.
plz answer i will mark as brainliest follow u and give you thx..but in return i need full proper answer
two dice are thrown simultaneously. list all the possible outcomes and the probability of getting same number on both dice (doublets); the sum of prime number
Answers
Explanation:
There are 36 possible outcome:
(1,1) (1,2) (1,3)...(1,6)
(2,1)....(2,6)
(3,1).....(3,6)
(4,1)....(4,6)
(5,1)....(5,6)
(6,1).....(6,6)
The possibility of getting a doublet are 6 possible outcome:
(1,1) (2,2) (3,3) (4,4) (5,5) (6,6)
P = 6/36 = 1/6
The possibility for getting a sum of prime number are 8 outcome:
(1,2) (2,1) (2,3) (3,2) (5,2) (2,5) (5,6) (6,5)
P = 8/36 = 2/9
ANSWER THIS QUICK!! IT¨S WORTH 46 POINTS
Answers
Answer:
The answer is option AStep-by-step explanation:
[tex] \frac{4\pi \sqrt{5} - 2\pi \sqrt{5} }{3 \sqrt{5} } [/tex]Simplify the numerator first
Since they have the same square root that's root 5 we can subtract them directly
That's
[tex]4\pi \sqrt{5} - 2\pi \sqrt{5} = (4\pi - 2\pi) \sqrt{5} \\ = 2\pi \sqrt{5} [/tex]So we have
[tex] \frac{2\pi \sqrt{5} }{ 3\sqrt{5} } [/tex]Reduce the expression with √5
We have the final answer as
[tex] \frac{2\pi}{3} [/tex]Hope this helps you
a tree was 17 feet tall when it was planted . it grew 8 times that height in 15 years how much taller is the tree then when it was planted
Answers
Answer A tree was 17 feet tall when it was planted it grew eight times that height in 15 years how much taller is the tree than when it was planted
Step-by-step explanation:
Answer you will multiply 17 * 8 which would give you 136. Next you was subtract 17 from 136 giving you a total of 119
Step-by-step explanation:
check for extraneous solutions: |2x + 5| = 3x + 4
Answers
it would be 1.............
write .0045 into a scientific notation
Answers
Answer:
To write 0,0045 in scientific notation, we will have to move the decimal point three point to right, which literally means multiplying by 1000=103 . Hence in scientific notation 0.0045=4.5×10−3 (note that as we have moved decimal three point to right we are multiplying by 10−3
Step-by-step explanation:
Ms. Anderson made a New year's resolution to go on a diet and exercise more. On January 1st , she weighed 160 pounds. Two months later, she had dropped to 136 pounds. What was the percent of decrease in her weight?
Answers
Answer: 15%
Step-by-step explanation:
From the question, we are informed that Mrs Anderson weighed 160 pounds earlier and two months later, she had dropped to 136 pounds. To. Calculate the percent of decrease in her weight goes thus:
We've to find her decrease in weight first. This will be:
= 160 pounds - 136 pounds
= 24 pounds
Percentage decrease will now be:
= Change in weight/Original weight × 100
= 24/160 × 100
= 0.15 × 100
= 15%
The percent of decrease in her weight is 15%.
look at image. reflection across the x-axis
Answers
Answer:
S 1,-1 R 1,-3 :)
Step-by-step explanation:
solve for d, s = 2d / t
Answers
s = 2d / t
Multiply both sides by t
st = 2d
Divide both sides by 2
st / 2 = d
m + 4 = -12
and
v - 15 = -27
Answers
Answer:The AR-15 came first, in 1947; the M16 a decade later. They have the same magazine capacity: 30 rounds. The former is heavier, with a shorter range and slower rate of fire, but these are subtle differences. Overall, the weapons are pretty simila
Step-by-step explanation:M4 carbine
Carbine, Caliber 5.56 mm, M4
Manufacturer See Manufacturers below
Unit cost $700 (avg. cost)m= -16
v= -12
Step-by-step explanation:
m + 4 = -12
m= -4-12
m=-16
v - 15 = -27
v=-27+15
v= -12
Produced 1991–present
Variants M4A1 Mark 18 Mod 0 CQBR
Answer:
m= -16
v= -12
Step-by-step explanation:
m + 4 = -12
m= -4-12
m=-16
v - 15 = -27
v=-27+15
v= -12
Car Mileage for a
Hybrid Car
What is the value of y when the value of x is 1?
240 kg
180
Number of Miles
120
60
2
2.
3
Number of Gallons
Answers
Answer:
60
Step-by-step explanation:
Answer: 60
Step-by-step explanation
I took the test (:
If a=0 and b≠0, where will the graph of the complex number a+bi always lie?
Answers
Answer:
On the horizontal axis
Step-by-step explanation:
The complex number is represented by the complex plane or z-plane which is the representation geometrically of the real (number) axis and the imaginary (number) axis
When plotting complex numbers, the real part of the complex number is always plotted on the horizontal axis while the imaginary part is plotted on the vertical axis
The complex plane concept facilitates the description of complex numbers geometrically.
Answer the questions to determine a conditional probability. How many customers are on payment plan B? customers How many of the customers on plan B text? customers What is the probability that a randomly selected customer who is on plan B uses the phone most often to text? Give the answer in fraction form.
Answers
Answer:
Answer the questions to determine a conditional probability.
How many customers are on payment plan B?
23 customers
How many of the customers on plan B text?
13 customers
What is the probability that a randomly selected customer who is on plan B uses the phone most often to text? Give the answer in fraction form.
13/23
Step-by-step explanation:
edg 2020
The probability that a randomly selected customer who is on plan B uses the phone most often to text is 13/23
What is the probability?Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.
The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.
P(E) = Number of favorable outcomes / total number of outcomes
The customers are on payment plan B = 23 customers
The customers on plan B text = 13 customers
The probability that a randomly selected customer who is on plan B uses the phone most often to text
= 13/23
Learn more about probability here;
https://brainly.com/question/11234923