Answers
Answer:
angle bcf = 113 degrees :)
Step-by-step explanation:
angle bca and angle dcf equal 134 in total
360-134= 226
226/2=113
Answer:
113
Step-by-step explanation:
Remark
<BCA and <BCF are on the same straight line. That means when added, they equal 180 degrees.
Givens
<BCA = 67
Two Parallel lines
1 Transversal
Solution
<BCA + < BCF = 180
67 + <BCF = 180
<BCF = 180 - 67
<BCF = 113
Related Questions
solve (i) 4/15+x=17/30
Answers
Answer:
3/10
Step-by-step explanation:
4/15+x=17/30
x=17/30-4/15
x=17/30-8/30
x=9/30
simplify
x=3/10
A kind teacher gives you 20 cents for every question you get right, but you have to pay the
teacher 10 cents for every question you get wrong. After 30 questions you have made a
profit of $1.80.
a ) Form an equation with x representing the number of questions you got right.
b )Solve your equation to find how many questions you got right.
Answers
Answer:
Let n be the number of questions you got right. Then
30-n equals the number of questions you got wrong.
So:
A) 20n-10(30-n)=180
30n-300=180
30n=480
n=16
30-n=14
B)You got 16 questions right and 14 questions wrong.
12 + 6x > 18
HELPPppp
Answers
Answer:
I used math-way, solved for x and got this
x>1
Step-by-step explanation:
6x + 12 > 18
6x + 12− 12 > 18 − 12
6x > 6
6x/6 > 6
x>1
A biologist was sitting near a pond and noticed a large number of dragonflies. He also saw both frogs and fish trying to eat the
dragonflies. He counted a total of 89 fish, frogs, and dragonflies. He noticed that there were four times as many dragonflies as fish and
that the frogs were five more than twice the number of fish
Answers
89 /3
frogs = 29.6
fish = 29.6
dragonflies = 29.6
all of them equal 89
a = fish = 12
b = frog = 29
c = dragonflies = 48
a + b + c = 89
c = 4a (four times as many dragonflies as fish)
b = 2a + 5 (frogs were five more than twice the number of fish)
Then substitute for b and c in the big equation:
a + (2a + 5) + 4a = 89
Combine like terms:
7a + 5 = 89
Subtract 5 from both sides:
7a = 84
Divide both sides by 7:
a = 12
Now use this to solve for b and c
c = 4(12) = 48
b = 2(12) + 5 = 24 + 5 = 29
Please let me know if you have any questions.
From the top of a light house 60 meters high with its base at sea level, the angle of depression to a boat is 15o. What is the distance of the boat from the foot of the light house?
Answers
Answer:
Distance between boat and light house = 223.88 meter (Approx.)
Step-by-step explanation:
Given:
Height of light house = 60 meters
Angle of depression to boat = 15°
Find:
Distance between boat and light house
Computation:
Using trigonometry application:
Tanθ = Perpendicular / Base
Tan 15 = Height of light house / Distance between boat and light house
0.268 = 60 / Distance between boat and light house
Distance between boat and light house = 60 / 0.268
Distance between boat and light house = 223.88 meter (Approx.)
Simplify:
-2(3x-1) + x(3x+2)
Answers
Answer:
-4x+3x power of 2 +2
Step-by-step explanation:
Answer:
3x² - 4x + 2
Step-by-step explanation:
distribute -2 into (3x - 1) and distribute x into (3x + 2)
=> -6x + 2 + 3x² + 2x
combine like terms
=> 3x² - 4x + 2
If 5 boys write 5 pages in 5 minutes,
in how many minutes can one boy
write one page?
Answers
Answer:
A boy can write one page in one minute
Answer:
5 minutesethhgdsyujjj
$100 are shared between Adam and Hamza in the ratio 1:3.
A)
How many dollars did Adam receive?
How many dollars did Hamza receive?
Answers
Answer:
$25 for Adam and $75 for Hamza
Step-by-step explanation:
$100 will be divided to 3 + 1 = 4 parts
the dollars Adam received
= $100 × 1/4
= $25
the dollars Hamza received
= $100 × 3/4
= $75
-----------------------------------------------------------
the dollars Hamza give to Adam
= $75 × 25%
= $75 × 25/100
= $18.75
the dollars Adam have
= $25 + $18.75
= $43.75
the dollars Hamza have
= $75 - $18.75
= $56.25
the ratio
= 43.75：56.25
= 7：9
what is the probability of that event's complement?
Pinot landing on heads
a) 1/2
b) 2/1
C 1/1
d) 1/4
Answers
Which side lengths form a right triangle?
Choose all answers that apply:
Answers
Answer:
A
Step-by-step explanation:
9, 12, 15 is a multiple of 3, 4, 5 which is a right triangle
Answer:
A. 9, 12, 15
Step-by-step explanation:
A. [tex]9^{2} +12^{2} =15^{2}[/tex]
B. [tex]6^{2} +2^{2}\neq\sqrt{38}^{2}[/tex]
C.[tex]3^{2} +9^{2} \neq \sqrt{91} ^{2}[/tex]
2x - 2y = -6,
2x + y = 9
Solve for the system of solutions and find the value of X and Y
x =
y =
Answers
Answer:
y=3 and x= 9/2
Step-by-step explanation:
Answer:
x=7
y=-5
Step-by-step explanation:
ive tryed the elimination way
(2x-2y=-6)-
(2x+y=9)
=-3y=-15
y=-5
2x+-5=9
2x=9-(-5)
2x=14
x=7
how abt that
Help pls in three it’s homework don’t really have much time left
Answers
Answer:
3. Blanks from top to bottom: 3, 9, 54, 62
5. Blanks from top to bottom: 2, 8, 4, 80, 640
Step-by-step explanation:
Use PEMDAS!
3.
6 × (36 ÷ 12)^2 + 8 = 6 × (___)^2 + 8
Solve for the left side to find the blanks:
6 × (3)^2 + 8
6 × 9 + 8
54 + 8
62
5.
320 ÷ (11 - 9^3/2) × 8 = 320 ÷ (___^3/2) × 8
Solve for the left side to find the blanks:
320 ÷ (2^3/2) × 8
320 ÷ (8/2) × 8
320 ÷ 4 × 8
80 × 8
640
If x+2y=12 and x-y=3 find the value of x+y
Answers
x-y=3
x=3+y
X+2y=12
(3+y) + 2y=12
3y+3=12
3y=9
Y=3
X-(3)=3
X=6
X+y
6+3=9
Find the surface area. Urgent!
Answers
Answer:
306 cm²
Step-by-step explanation:
Sorry if this is wrong doing mental math
Find the product of 22.4 and 0.51
Answers
Answer:
11.424 is the product of 22.4 x 0.51
State if the triangles in each pair are similar. Remember a) AA/SAS/SSS
b) prove it. C) write a similarity statement.
Answers
Note how we have a segment that is also 4 units long in the other triangle; however, we won't use that one just yet. Instead, we'll go for the 2 unit segment. As it turns out, every piece of the triangle on the right side is half that of the left side triangle.
Segment ED is 2 units long. So AB and ED pair up
------------------------------
BC is 8 units long; DF is 4 units long (half of BC). So BC and DF pair up
I started at A, went to B, then to C in that exact order marking the side lengths of 4 and 8 respectively. At the same time for the other triangle, I started at E, moved to D, then to F recording the side lengths 2 and 4
So A pairs up with E, B pairs with D, and C pairs with F
Therefore, triangle ABC is similar to triangle EDF. The order is very important so that the points line up and correspond in the proper manner.
I used the SSS (side side side) similarity theorem to prove the triangles similar. This theorem says that if the sides are in proportion to one another, then the triangles are similar.
i need help with this if you help me i will mark you as brainliest if its right please dont put the answer in a file
Answers
Answer:
more than 7
Step-by-step explanation:
4+3 = 7
)sorry if i was wrong(
Answer: D
Step-by-step explanation:
You are just moving mn, so the length does not change. Its the same, just in different spots.
Find an equation of variation in which y varies directly as x and y = 60 when x = 0.4. Then find the value of y when x = 2
Answers
Answer:
y = 300
Step-by-step explanation:
The equation of variation in which y varies directly as x is written Mathematically as:
y ∝ x
y = k × x
y = kx
Where k = Proportionality Constant
We find k
a) y = 60 when x = 0.4.
60 = 0.4 × k
k = 60/0.4
k = 150
b) find the value of y when x = 2
y = kx
k = 150
Hence,
y = 150 × 2
y = 300
Suppose you add or subtract two quadratic trinomials that use the same variable. What are the possible classifications for the sum or difference? Explain.
Please help me asap. T.T
Answers
Answer:
quadratic monomial, quadratic trinomial, constant monomial, linear monomial, quadratic binomial, linear binomial.
Step-by-step explanation:
two quadratic trinomials each have a degree-2, degree-1, and degree-0 term. It is possible that the coefficients of all or some of the terms cancel each other while adding or subtracting the polynomials.
Answer:
Here is the answer. Hope this helps Sorry it's blurry but you have to click on it and you will see the answer
Step-by-step explanation:
Find the value of x in OQ. 5x-6
2x+9
Need help with this question asap!!
Answers
Answer:
[tex]\huge\boxed{\sf x = 5}[/tex]
Step-by-step explanation:
Since, the chord is being bisected by the diameter (being divided into two equal parts). Hence,
5x - 6 = 2x + 9
5x - 2x = 9 + 6
3x = 15
Divide both sides by 3
x = 15 / 3
x = 5
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807find the slope of a line through the points (-1,5) and (7,-11)
Answers
Answer:
-2
Step-by-step explanation:
A triangle has three angles that measure 25 degrees, 75 degrees
(7x + 10). What is the value of x?
Answers
Answer:
x=10
Step-by-step explanation:
I did not pay attention to the class- so can someone explain how to do dis type of problem- and the answers-
Answers
which questions ..??????
Solve the system of equations 3x+2y=223x+2y=22 and -4x+3y=16−4x+3y=16 by combining the equations.
Answers
Answer:
(2, 8)
Step-by-step explanation:
Given the system of equation
3x+2y=22 ... *4
-4x+3y=16 .... *3
Using the elimination method
12x + 8y = 88
-12x + 9y = 48
Add
8y + 9y = 88+48
17y = 136
y = 136/17
y = 8
Recall that
3x+2y=22
3x+2(8)=22
3x + 16 = 22
3x = 22-16
3x = 6
x = 6/3
x = 2
Hence the required solution (x, y) is (2, 8)
Which equation has the same solution as
x2+4x-13=-7
Answers
Answer:
6x - 3 + 4x = 13
10x - 3 = 13
10x = 16
x = 1.6
Any equation whose solution is x=1.6 has the same solution as this one has.
Step-by-step explanation:
hii please help i’ll give brainliest
Answers
Answer:
-19
Step-by-step explanation:
Answer:
-19
hope it helps. Plz mark brainliest!
explanation:
To find its opposite, change the negative sign to a positive sign. The answer is that the opposite of 19 is -19.
Help plz and the first and second options are.
First : any side,any two side,any three side
Second: less the. 90 degrees,greater then 90 and exactly 90
Answers
Second: Exactly 90°
Which inequality correctly compares 1/2, 3/4, and 2/3
Answers
Answer:
3/4>2/3>1/2
Step-by-step explanation:
put into decimal form
1/2 = 0.5
2/3 = 0.66666666666
3/4 = 0.75
How many combinations with repetition are allowed if n = 5 and r = 3?
120
125
10
35
Answers
Answer:
35
Step-by-step explanation:
Since repetition is allowed, we use the equation
((n+r-1)!/(r!(n-1)!) = 7!/(3!x4!) = 35
what is the measure of angle 1?
Answers
Answer:
option a. 90°
angle 1=90°