Answers
Answer:
AD=2
Step-by-step explanation:
[tex]\frac{6}{12} =\frac{AB}{20} \\AB=\frac{6}{12} \times 20=10\\AD+DF+FB=10\\AD+6+FB=10\\AD+FB=10-6=4\\AD+AD=4 ( \because ~FB=AD )\\2AD=4\\AD=4/2=2[/tex]
Related Questions
Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x. f(x) = (x-8)/(x+7) and g(x) = (-7x-8)/x-1
Answers
f(x) = (x-8)/(x+7) and g(x) = (-7x-8)/(x-1)
To confirm that f(x) and g(x) are inverses.
f(g(x)) = x
g(f(x)) = x
f(g(x)) = (((-7x-8)/(x-1))-8)/(((-7x-8)/(x-1))+7)
f(g(x)) = (-15x² -15x)/(-15x² - 15)
f(g(x)) = -15x/-15
f(g(x)) = x
g(f(x)) = (-7((x-8)/(x+7))-8)/(((x-8)/(x+7))-1)
g(f(x)) = (-15x² - 105x)/(-15x²- 105)
g(f(x)) = -105x/-105
g(f(x)) = x
f(x) and g(x) are inverses.
Last year, a car dealership sold 144 new cars and 108 used cars. Since then, the number of new cars sold is increasing by 8 cars each year,
while the number of used cars sold has been decreasing by 5 cars each year.
In how many years will the number of new cars sold be twice the number of used cars sold?
O A. 2 years
OB. 4 years
C. 6 years
O
D. O years
Answers
Answer: 4 years
Step-by-step explanation:
144 + 8(4) = 176
108 - 5(4) = 88
88 x 2 = 176
what is
[tex] \frac{2}{3}and \frac{5}{6} [/tex]
as a decimal?
Answers
5/6 = .8333
what is 3x + 7 = 22
Answers
Answer: The value of x is = 5.
Step-by-step explanation:
So we are given the equation:
3x + 7 = 22
We just have to isolate 3x and move 7 to the other side:
3x = 22 -7
3x = 15
Now divide:
x = 15/3
x = 5
There you go!
Answer:
5
Step-by-step explanation:
22-7=15 and 15 divided by 3 =5
Represent "The product of 5 and a number z" mathematically.
Answers
Answer:
5z
Step-by-step explanation:
Answer:
5z
Step-by-step explanation:
'The product of 5 and a number' would be 5 * n.
Since the number in the question would be 'z', we will write it as '5 * z'.
However, the most ideal way to write this is '5z'. So, "The product of 5 and a number z" would be '5z'.
Hope this helps.
The girl's basketball team played a game this Wednesday. Here are some of the statistics for the players from
the game
The individuals in this set are:Choose 1 Answer
A.Basketball Games
B.Basketball Scores
C.Basketball Players
This data contains:Choose 1 Answer
A. 3variables,1 of which is quantitative
B. 3 variables,2 of which are quantitative
C. 5 variables, 1 of which is quantitative
D. 5 variables, 2 of which are quantitative
Answers
The individuals in this set are C) Basketball players
This is because it's listing all the player names with their associated stats.
====================================================
The data contains B) 3 variables, 2 of which are quantitative
The variables are
free throw percentageassistsclassThe first two variables are quantitative as they deal with numeric values, and it makes sense to do things like find the average. The last variable is qualitative. It is also an ordinal variable because we can order the labels from freshman to senior.
This data on the statistics from the basketball game contains 3 variables, 2 of which is quantitative.
What are quantitative variables?A quantitative variable is a variable that can be used to show the degree of magnitude. This means that quantitative variables can be represented with numbers.
The quantitative variables are free throw percentage and the number of assists.
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The length of a rectangle picture is 5 inches more than three times the width. Find the dimensions of the picture if it's perimeter is 74 inches.
Answers
Answer:
length = 29 incheswidth = 8 inchesStep-by-step explanation:
Perimeter of a rectangle = 2l + 2w
where
l is the length
w is the width
From the question
Perimeter = 74 in
The statement
The length of a rectangle picture is 5 inches more than three times the width is written as
l = 5 + 3w
Substitute the expression into the above formula and solve for the width
That's
74 = 2(5 + 3w) + 2w
74 = 10 + 6w + 2w
8w = 64
Divide both sides by 8
w = 8
Substitute this value into l = 5 + 3w and find the length
That's
l = 5 + 3(8)
l = 5 + 24
l = 29
The dimensions of the rectangle are
length = 29 inches
width = 8 inches
Hope this helps you
b) James went to Black Rock coffee shop and ordered
2 coffees and 5 bagels for which he paid $24. The next
morning he returned to buy 3 coffees and 4 bagels for
$22. Based on this information, determine how much
each item costs.
Answers
Answer:
Coffees cost $2 each and bagels cost $4 each
Step-by-step explanation:
Let
Coffee=c
Bagels= b
2 coffees and 5 bagels for which he paid $24
2c + 5b= 24 (1)
he returned to buy 3 coffees and 4 bagels for
$22
3c + 4b = 22 (2)
2c + 5b= 24 (1)
3c + 4b = 22 (2)
Multiply (1) by 3 and (2) by 2
6c + 15b = 72 (3)
6c + 8b = 44 (4)
Subtract (4) from (3)
15b - 8b = 72 - 44
7b = 28
Divide both sides by 7
b= 28 / 7
= 4
b= $4
Substitute b=4 into (1)
2c + 5b= 24
2c + 5(4) = 24
2c + 20 = 24
2c = 24 - 20
2c = 4
Divide both sides by 2
c= 4 / 2
c= $2
Therefore,
Coffees cost $2 each and bagels cost $4 each
Joshua rolls two dice to form a two-digit
integer. If the number on the first die rep-
resents the tens digit and the number on the
second die represents the units digit, what
is the probability that the integer formed is
divisible by 8?
*Does anyone know which “category” or topic this question would fall under? Like what would I search to find more questions similar to this?
Answers
Answer:
fits under statistics category (also probability or math :\)
I needed help plzzz it's for school
Answers
Answer:
2k-8
Step-by-step explanation:
3k +9 -k-17
Combine like terms
3k -k +9-17
2k -8
Answer:Simplifying
3k + 9 + -1k + -17 = 0
Reorder the terms:
9 + -17 + 3k + -1k = 0
Combine like terms: 9 + -17 = -8
-8 + 3k + -1k = 0
Combine like terms: 3k + -1k = 2k
-8 + 2k = 0
Solving
-8 + 2k = 0
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Add '8' to each side of the equation.
-8 + 8 + 2k = 0 + 8
Combine like terms: -8 + 8 = 0
0 + 2k = 0 + 8
2k = 0 + 8
Combine like terms: 0 + 8 = 8
2k = 8
Divide each side by '2'.
k = 4
Simplifying
k = 4
Step-by-step explanation:
A 0.40 kg bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic energy?
Answers
Answer:
The correct answer is 12.8 J.
Step-by-step explanation:
To solve this problem, we must remember how to calculate the kinetic energy of an object.
The kinetic energy is represented by the formula K = 1/2 * m * v^2, where m represents the mass of the object and v represents the speed or velocity of the object. If we plug in the given values into the formula, we get:
K = 1/2 * m * v^2
K = (1/2) * (0.40) * (8.0)^2
Our first step is to square the velocity. After doing this step, we get the following:
K = (1/2) * (0.40) * (64)
Finally, we can perform the multiplication, to get:
K = 12.8
The unit for kinetic energy is joules, so the correct answer is 12.8 J.
Hope this helps!
Kinetic energy is the energy due to motion of an object
The kinetic energy of the bird is 12.5 joules
Reason:
The known parameter are;
The mass of the bird, m = 0.50 kg
The speed of the bird, v = 8.0 m/s
Required:
To find the kinetic energy of the bird
Solution:
[tex]Kinetic \ energy = \dfrac{1}{2} \cdot m \cdot v^2[/tex]
Therefore;
[tex]The \ kinetic \ energy \ of \ the \ bird = \dfrac{1}{2} \times 0.40 \ kg \times (8.0 \ m/s)^2 = 12.8 \ J[/tex]
The kinetic energy of the bird is 12.8 J
Learn more about kinetic energy here:
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Point K is between J and L. If JL-162, what is JK?
4x+8
68-6
J
K K
L
Answers
Answer:
JK = 72
Step-by-step explanation:
JL = JK + KL = (4x+8) + (6x-6) = 10x + 2 = 162
--> x = (162-2)/10 = 16
JK = 4x + 8 = 4 . 16 + 8 = 72
Describe a way in which the diagram above illustrates the unique line postulate.
A. Planes R. and s intersect at line AB.
B. There is exactly one line, m, through points B and D.
C. There is exactly one plane, S, through points A, B, and C.
D. Plane R. contains points A and B and line AB.
Answers
Answer:c
Step-by-step explanation:
Use the figure below for Exercises 1-8. Note that RN pierces the plane at N. It is not coplanar with V.
SR
А
M
х
N
C.
1. Name two segments shown in the figure.
2. What is the intersection of CM) and RN ?
3. Name three collinear points.
4. What are two other ways to name plane V?
5. Are points R, N, M, and X coplanar?
6. Name two rays shown in the figure.
7. Name the pair of opposite rays with endpoint N.
8. How many lines are shown in the drawing?
Answers
Answer:
1. Two segments are MC and AX
2. Point N
3. Three collinear points are points A, point N and point X
4. Two other names for V are quadrilateral and rectangle
5. No N, M, and X are in a different plane from R
6. Two rays are ray NR and ray NA
7. The pair of opposite rays with end point N are ray NA and ray NX and ray NM and ray NC
8. Three lines are shown in the figure
Step-by-step explanation:
1) A segment is a line portion with two end points
2) A point marks a position
3) Collinear points are points on the same line
3) A quadrilateral is a four sided figure while rectangle has 90° interior angles
4) A ray is an line extending from a point without ending
5) Opposite rays are rays extending from the same point but in opposite directions
6) A line is a straight one dimensional geometric figure that has no width but infinite number of points extending without end in both directions
Please help
D=1/3fk solve for k
Answers
Answer:
[tex]k = \frac{3D}{f} [/tex]Step-by-step explanation:
[tex]D = \frac{1}{3} fk[/tex]To solve for k first multiply both sides by 3
That's
[tex]3D = fk[/tex]Next divide both sides by f in order to isolate k
We have
[tex] \frac{fk}{f} = \frac{3D}{f} [/tex]Simplify
We have the final answer as
[tex]k = \frac{3D}{f} [/tex]Hope this helps you
in triangle DEF and triangle PQR where DE is 2cm ,EF is 3cm, angle DEF is 60 and PQ is 6cm ,QR is 9cm, and angle PQR is 60 show that these are similar triangle with the appropriate criteria
Answers
Answer:
ΔDEF is similar to ΔPQR by SAS similarity rule
Step-by-step explanation:
Two triangles are similar if their corresponding angles are congruent and corresponding sides are proportional.GivenΔDEF, with details:
DE = 2 cm, EF = 3 cm, ∠DEF = 60°ΔPQR , with details:
PQ = 6 cm, QR = 9 cm, ∠PQR = 60°As we see, the ratio of corresponding sides is:
DE/PQ = EF/QR ⇔ 2/6 = 3/9 = 1/3And corresponding angles are:
∠DEF = ∠PQR = 60°Therefore, ΔDEF is similar to ΔPQR by SAS similarity rule
An empty can weighs 30 grams. The weight of the same can filled with liquid is 47.3 grams. Which equation could be used to find w, the weight of the liquid?
Answers
Answer:
w = y - x is the equation to find w
Where,
w = Weight of the liquid
x = Weight of the empty can
y = Weight of the can with liquid
Step-by-step explanation:
Let
Weight of the empty can = x
Weight of the liquid = w
Weight of the can with liquid = x + w = y
x= 30 grams
w = ?
y= 47.3 grams
y = x + w
w = y - x
= 47.3 - 30
= 17.3
w= 17.3 grams
Therefore, the weight of the liquid is 17 .3 grams
Un terreno A, tiene un largo de 120 m. Y un ancho de 200 m. . Si es 3 veces más largo y 4 veces más ancho que el terreno B. ¿Cuál es el área del terreno B?
Answers
Answer:
El área del terreno B es 2000 m.
Step-by-step explanation:
Tenemos que el terreno A es:
[tex]L_{A}[/tex]: largo = 120 m
[tex]A_{A}[/tex]: ancho = 200 m
Y que el terreno B es:
Largo:
[tex] L_{A} = 3L_{B} [/tex]
[tex] L_{B} = \frac{L_{A}}{3} = \frac{120 m}{3} = 40 m [/tex]
Ancho:
[tex] A_{A} = 4A_{B} [/tex]
[tex] A_{B} = \frac{A_{A}}{4} = \frac{200}{4} = 50 m [/tex]
Entonces, asumiendo que el terreno es un rectángulo, el área del terreno B es:
[tex] a_{B} = L_{B}*A_{B} = 40 m*50 m = 2000 m [/tex]
Por lo tanto, el área del terreno B es 2000 m.
Espero que te sea de utilidad!
Determine the standard form of the equation of the line that passes through (-7,8) and (0,-8)
Answers
Answer:
work shown and pictured
2p-9=5p+12 what’s the value of p
Answers
Answer:
-7
Step-by-step explanation:
2p-9=5p+12
2p-9-12=5p
-21=5p-2p
-21=3p
p= -21/3
p= -7
Answer: P=51
--
Steps for Solving Linear Equation: 20−9=5p+12
--
Subtract 9 from 20 to get 11.
[tex]11=5p+12[/tex]
Swap sides so that all variable terms are on the left hand side.
[tex]5p+12=11[/tex]
Subtract 12 from both sides.
[tex]5p=11-12[/tex]
Subtract 12 from 11 to get −1.
[tex]5p=1[/tex]
Divide both sides by 5.
[tex]p=5-1[/tex]
Fraction 5−1≈−0.2 can be rewritten as −51=−0.2 by extracting the negative sign.
[tex]p=-51[/tex]
NEED AL THESE ANSWERED!!! 15 POINTS!!!
Simplify the expressions:
① -4c - 6d + 9c + 2d
Select one:
a. 5c - 4d
b. -5c - 4d
c. -4c + 5d
d. 5c + 4d
② 2(-y + 9) + 8y
Select one:
a. -6y + 18
b. -6y + 9
c. 6y + 18
d. 24y
③ -3(-4y + 5) - 8y
Select one:
a. -4y + 5
b. -11y
c. 4y - 15
d. -4y - 15
④ 6c - 8d + 3c +4d
Select one:
a. 9c - 4d
b. -4c + 9d
c. -9c - 4d
d. 9c + 4d
Answers
Number one:
-4c - 6d + 9c + 2d
~Combine like terms
(-4c + 9c) + (-6d + 2d)
~Simplify
5c - 4d (Option A)
Number two:
2(-y + 9) + 8y
~Distribute
-2y + 18 + 8y
~Combine like terms
(-2y + 8y) + 18
~Simplify
6y + 18 (Option C)
Number three:
-3(-4y + 5) - 8y
~Distribute
12y - 15 - 8y
~Combine like terms
4y - 15 (Option C)
Number four:
6c - 8d + 3c + 4d
~Combine like terms
(6c + 3c) + (-8d + 4d)
~Simplify
9c - 4d (Option A)
Best of Luck!
Plot the complex number —4 – 8i on the axes below.
Answers
It`s easy.
Real axis (-4) is the abscissa, the part with i (-8) is the ordinate. That`s why...
a(2x+3) = 9x+15+x. Solve for a
Answers
Step-by-step explanation:
[tex]\huge{\purple{\underline{\underline{\bf{\pink{Answer}}}}}}[/tex]
[tex]a(2x + 3) = 9x + 15 + x \\ a = \frac{5(2x + 3) }{2x + 3} \\ a = 5 \\ [/tex]
Hoor it helps
The solution of the given expression a(2x+3) = 9x+15+x is 5.
What is an expression?
A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.
An expression is a mathematical proof of the equality of two mathematical expressions.
Given the expression,
a(2x+3) = 9x + 15 + x
Divide both sides by 2x + 3
a = (9x + 15 + x)/(2x + 3)
a = (10x + 15)/(2x + 3)
a = 5(2x + 3)/(2x + 3)
a = 5
Hence "The solution of the given expression a(2x+3) = 9x+15+x is 5".
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brainlist if CORRECT
If [x] + x + y =10 AND \y] + x - y =12 then find the value of x + y
Answers
Answer:
hope it helps
Step-by-step explanation:
2x+y=10
x-2y=12
2x+y=10
2x-4y=24
y=-14/5
2x=10+14/5
2x=64/5
x=32/5
What is the domain of this function(picture attached)? Due in 2 hours, 15 points and I'll give Brainliest!
Answers
Answer:
[tex]x\geq 1[/tex]
B
Step-by-step explanation:
For square root functions, the domain is the restrictions on the x-variable.
Recall that you cannot take the square root of a negative. Thus, all values under the square root must be greater than or equal to 0. Thus, to find the domain, set the expression under the radical sign to greater than or equal to 0 and solve for x:
[tex](x-1)\geq 0[/tex]
Add 1 to both sides.
[tex](x-1)+1\geq 0+1\\x\geq 1[/tex]
Thus, the domain is:
[tex]x\geq 1[/tex]
All real numbers such that x is greater than or equal to 1.
Answer:
[tex]\huge \boxed{x \geq 1}[/tex]
Step-by-step explanation:
The domain of a function is all possible values for x.
There are restrictions on the value of x.
The number in the square root has to be greater or equal to 0 to be defined. Since the square root of a number lesser than 0 will be undefined.
[tex]x-1\geq 0[/tex]
Adding 1 to both sides.
[tex]x-1+1 \geq 0+1[/tex]
[tex]x\geq 1[/tex]
The domain of the function is [tex]x\geq 1[/tex]
All real numbers greater or equal to 1.
what is the minimum amount of colors to be used to shade 4 different regions?
Answers
The four color theorem-No more than 4 colors are required to color the regions map
3x + 5 + 5x – 2
Combine the like terms
Answers
Why isn’t the maximum ACT score (36) at the 100th percentile?
Answers
Answer and Explanations
ACT score percentile help colleges compare students with one another, rather than just looking at everyone’s score. The score range is between 1 and 36, the highest score that one can receive on the ACT is 36. Moreover, 36 is the perfect score.
The maximum ACT score (36) is that in 2018, only 3,741 students (out of millions of test-takers) scored a perfect 36 on the ACT. The 99th percentile of test-takers includes those who earn 35 or 34 on the ACT. We can miss up to five questions on the ACT and still earn a 36. That is a reason why the maximum ACT score is 36 at the 100th percentile.
The ACT score report will provide more information about test-taking experience in the form of sub score. The higher the score, you will get into the colleges of your choice.
The maximum ACT score is not at the 100th percentile. because the student cannot score more than himself as well as others whom scored the same.
Although your question lacks some data a general answer have been provided above
For the maximum score ( 36) to be at the 100th percentile the individual who scores the maximum ACT score, must have scored higher than others and also him/herself in the data set.
Even if a student scores the highest score (36) it does not mean they have scored higher than others who had the same score ( 36 ) with them or him/her self.
Hence we can conclude that the maximum ACT score ( 36 ) cannot be at the 100th percentile because the student cannot score more than himself as well as others whom scored the same.
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1. PLEASE HELP. Consider the matrices-
Answers
Answer:
A - B = [ -1 3 ]
[ -6 2 ]
[ -4 -10 ]
Step-by-step explanation:
Since Matrix A and Matrix B have the same size, then we can simply perform the operation of subtraction on each position within the matrices to get the resulting subtracted matrix.
A = [ 4 7 ] B = [ 5 4 ]
[ -3 8 ] [ 3 6 ]
[ -5 -2 ] [ -1 8 ]
A - B = [ (4 - 5) (7 - 4) ]
[ (-3 - 3) (8 - 6) ]
[ (-5 - -1) (-2 - 8) ]
A - B = [ -1 3 ]
[ -6 2 ]
[ -4 -10 ]
Cheers.
The TV weather forecaster announces that one location has a 65% chance of hail tomorrow and a 10% chance of snow. What is the probability that it will hail or snow in this location? a 13/20 b 1/10 c 3/8 d 3/4
Answers
Answer:
b
Step-by-step explanation: