Answer:
AB = 15 ÷ 2
Step-by-step explanation:
The computation of the AB is shown below;
Given that
AX : XB as AB : AC
AX = 5
XB = 4
AC = 6
AB = x
Based on the above information
We can write as
5 : 4 as to x : 6
ratios can be written as fractions
5 ÷ 4 = x ÷ 6
(4)(x) = (5)(6)
4x = 30
x = 30 ÷ 4
x = 15 ÷ 2
Hence, the AB = 15 ÷ 2
12 – n = 23 help I don't get it
Answer:
n = -11
Step-by-step explanation:
Assuming you need to solve for n:
12 - n = 23 (Given)
-n = 11 (Subtract 12 on both sides)
n = -11 (Divide -1 on both sides)
Answer:
n = -11
Step-by-step explanation:
Since 2 negatives create a positive, 12 - -11 would turn into 12 + 11 = 23
For a discrete random variable that takes a value of 8 with probability .75 and a value of -4 with probability of .25, what is the expected value and what is the variance
Answer:
5.20
Step-by-step explanation:
X : ______ 8 ____ - 4
P(X) : ___ 0.75 __ 0.25
The expected mean E(x) :
E(x) = ΣX / n
n = sample size = 2
E(x) = (8*0.75) + (-4*0.25)
E(x) = 6 - 1
E(x) = 5
The standard deviation : sqrt(Var(x))
Var(x) = Σx²p(x) - E(x)²
Var(x) = (8^2 * 0.75) + (-4^2 * 0.25)) - 5^2
Var(x) = ((64 * 0.75) + (16* 0.25)) - 25
Var(x) = (48 + 4) - 25
Var(X) = 27
Standard deviation = sqrt(27)
Standard deviation (x) = 5.1961524
Standard deviation = 5.20
If 4 and 18 are the sides of a right triangle, what is the hypotenuse to the nearest tenth?
A pack of baseball cards costs $7. Doug has $47. How many packs of baseball cards can he get?
Find f(-2) if f(x) = x + x + 7. f(-2) =
Answer:
f(-2) = 9
Step-by-step explanation:
Given that,
f(x) = x² + x + 7
We need to find the value of f(-2).
Put x = -2 in the given function.
f(-2) = (-2)² + (-2) + 7
= 4-2+7
= 9
Hence, the value of f(-2) is equal to 9.
PLS HELP!!!
A triangular prism. The rectangular sides are 12 feet by 3 feet, 12 feet by 5 feet, and 12 feet by 4 feet. The 2 triangular sides have a base of 3 feet and height of 4 feet. The area of each triangular base is: A = 1/2(b)(h) A = 1/2(3)(4) A = ft2 There are two bases, so total base area is ft2. The lateral area is: A = (12)(3) + 12(5) + 12(4) A = ft2 The total surface area is ft2.
Answer:
The lateral area is 144 ft^2
The Total surface area is 156ft^2
Step-by-step explanation:
:)
Answer:
6, 12, 144, 156
Step-by-step explanation:
The area of each triangular base is: A = 1/2(b)(h) A = 1/2(3)(4) A = 6 ft2
There are two bases, so total base area is 12 ft2.
The lateral area is: A = (12)(3) + 12(5) + 12(4) A = 144 ft2
The total surface area is 156 ft2.
1. If the original price of an item was 75 cents and the new price is 81 cents, 1 pc
what is the percent change? (MAKE SURE YOU TYPE % AT THE END OF
YOUR ANSWER) *
Your answer
Answer:
8%
Step-by-step explanation:
Original Price = 75 cents New Price = 81 cents, % increase = ?
% increase = 81 - 75/75 × 100%
% increase = 6/75 × 100%
% increase = 8% ( Ans)
A total of 633 tickets were sold for the school play. They were either adult tickets or student tickets. There were 67 fewer student tickets sold then adult tickets. How many tickets were sold?
Answer:
x+x-63=637 solve for x
2x=700 divide each side by 2
x=350
so 350 adult and 350-63=287 student
your answe is
287
Fill in the blanks to tell how the point of view in this part of the passage is different from the point of view in the making of a mountain 
Answer:
important and agree,
Step-by-step explanation:
I did this
Answer:
important and agrees with.
Step-by-step explanation:
(no reporting this.)
hope this helps!
Which of the following must be true if the triangles are congruent?
Answer:
Step-by-step explanation:
Non of them are
How is this number read?
14.102
fourteen and one hundred two thousandths
fourteen and one hundred two hundredths
fourteen and one hundred two tenths
fourteen one hundred two
Answer:Its B//////////////////////////.,,,
Answer: A
Step-by-step explanation: The number can be read in many ways, but this is more proper way.
The length of a rectangle in terms of x is x + 8, and its width is 2x + 3. What is the perimeter of this rectangle?
Answer:
59
Step-by-step explanation:
value in a expansion is 5
expansion
simplistic form
PLEASE HELP!!!! Based on the model, approximately how many cups of tea can Christina expect to sell during the eighth hour?
Answer:
where is the picture
Step-by-step explanation:
Answer:
175
Step-by-step explanation:
plato/edmentum
Is the following equation proportional or non-proportional?
y = -4x - 3
Answer:
proportional
Step-by-step explanation:
find the measure of
Answer:
105°
Step-by-step explanation:
Answer:
X=105 degrees
Step-by-step explanation:
180-50-80=50degrees
angle to the bottom left of X is 50degrees
180-90-65=25degrees
angle to the bottom right of X is 25 degrees
180-25-50=105 degrees
X=105degrees
A teacher grades 27 tests in 3 hours Find the constant of variation
Answer:
9Step-by-step explanation:
Step one:
given
Let the number of tests graded be g = 27
time taken t = 3 hours
Required
The constant relating the time and the number of tests
Step two:
"The constant of variation is the number that relates two variables that are directly proportional or inversely proportional to one another."
so that the direct variation is
g∝kt
g=t/k
k= g/t
k=27/3
k=9
Answer:
9
Step-by-step explanation:
Since you know that there are 27 tests every three hours then you can divide 27 by 3 to get the constant variation or "test per hour". So then, 27 divided by 3 is 9.
Three robots ran the same distance. The first robot ran 150 meters per minute.
The second robot ran 150 meters per minute faster than the first robot and 120
meters per minute faster than the third robot. The winner finished 2 minutes
before the robot that finished in second place. What distance (in meters) did the
robots run?
Answer:
900 meters.
Step-by-step explanation:
Trust me. Russian School Of Math answer :)
PLEASE HELP
The vertex of this parabola is at (-2, 1). Which of the following could be its
equation?
Answer:
A. [tex]x = 4\cdot (y-1)^{2}-2[/tex]
Step-by-step explanation:
From the image attached below statement we understand that a parabola with a horizontal axis of symmetry and whose vertex is centered at [tex]V(x,y) = (h,k)[/tex] is defined by the following expression:
[tex]x-h = C\cdot (y-k)^{2}[/tex] (1)
Where [tex]C[/tex] is the parabola factor, when [tex]C > 0[/tex], the parabola is oriented in the +x direction, otherwise is oriented in the -x direction. Hence, we may conclude that equation of the parabola is of the form:
[tex]x+2 = C\cdot (y-1)^{2}[/tex]
[tex]x = C\cdot (y-1)^{2}-2[/tex], where [tex]C > 0[/tex]
The correct answer is A.
Answer:
A
Step-by-step explanation:
Hopefully this helps
The number of dimes in Kiara's collection is 13 more than 5 times the
number of quarters in her collection. Kiara has 78 dimes in her
collection. Which equation could be used to find the number of
quarters in Kiara's collection?
78 = 13C + 5
78 = 13C-5
78 = 5C + 13
78 = 5C -13
Answer:
The number of dimes in Kiara's collection is 13 more than 5 times the
number of quarters in her collection. Kiara has 78 dimes in her
collection.
3) 78 = 5C+13is the right answer.
Please Help ASAP!! ❤️
Answer:
Step-by-step explanation:
*a is 6:55
*b is 37
*c is 15:12
The diameter of a circle measures 32 mm. What is the circumference of the circle? Use 3.14 for , and do not round your answer. Be sure to include the correct unit in your answer.
Answer:
100.48 ft
Step-by-step explanation:
Can someone help me please
Answer:
6x 2y
x = 4
Step-by-step explanation:
Answer:
f(x) = 5/3 x - 2/3
Step-by-step explanation:
5x - 3y = 2
3y = 5x -2
y = 5/3 x - 2/3
f(x) = 5/3 x - 2/3
I need help which point at the origin
Answer:
A
Step-by-step explanation:
Determine the coordinates of the intersection of the diagonals of square ABCD with verticals A(-4,6), B(5,6) C(4,-2), and D(-5,-2)
Given:
Vertices of a square are A(-4,6), B(5,6) C(4,-2), and D(-5,-2).
To find:
The intersection of the diagonals of square ABCD.
Solution:
We know that diagonals of a square always bisect each other. It means intersection of the diagonals of square is the midpoint of diagonals.
In the square ABCD, AC and BD are two diagonals. So, intersection of the diagonals is the midpoint of both AC and BD.
We can find midpoint of either AC or BD because both will result the same.
Midpoint of A(-4,6) and C(4,-2) is
[tex]Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]
[tex]Midpoint=\left(\dfrac{-4+4}{2},\dfrac{6+(-2)}{2}\right)[/tex]
[tex]Midpoint=\left(\dfrac{0}{2},\dfrac{6-2}{2}\right)[/tex]
[tex]Midpoint=\left(\dfrac{0}{2},\dfrac{4}{2}\right)[/tex]
[tex]Midpoint=\left(0,2\right)[/tex]
Therefore, the intersection of the diagonals of square ABCD is (0,2).
Write the equation with the given slope and y-intercept:
m = -3
y - intercept = 15
Your answer
Answer
wjiehnjshude
Step-by-step explanation:
What is the length of the hypotenuse in a triangle?
Answer:
longest side of a right-angled triangle,
Step-by-step explanation:
8 percent as a fraction or mixed number in simplest form
Answer: 2/25
Step-by-step explanation:
Solve the system of equations
4x-y=10
y=2x-2
Answer:
y=2/3 x=-5/3
Step-by-step explanation:
What is equivalent to 5(x + 12)
A x +12
B 2x - 60
C 5x + 60
D 2x - 60
Answer:
[tex]\boxed{\boxed{\pink{\sf Option \ C \ is \ correct .}}}[/tex]
Step-by-step explanation:
Given to us is , 5 ( x + 12 ) and we need to find which is its equivalent in the given options .
So,
[tex]\bf = 5 ( x + 12 ) \\\\=\bf 5x + 5\times 12 \\\\=\boxed{\red{\bf 5x + 60 }}[/tex]
Hence option C is correct.Which point is coplanar with C, F, and G in the diagram below?
1. H
2.E
3.B
4.D
Step-by-step explanation:
The only face of the cube that has all the points C, F and G is the face CFGD on the right facing outwards.
Hence point D must be coplanar as it is on the same face.
Point D is coplanar with C, F, and G in the diagram of rectangular prism option (4) D is correct.
What is a rectangular prism?It is defined as the six-faced shape, a type of hexahedron in geometry.
It is a three-dimensional shape. It is also called a cuboid.
It is given that:
The rectangular prism is given in the picture.
The rectangular prism is a three-dimensional figure.
As we know, geometry can be defined as the branch of mathematics that is concerned with the size, shape, and orientation of two-dimensional figures.
The cuboid can be defined as a six-faced shape, a type of hexahedron in geometry. It is a three-dimensional shape.
Thus, point D is coplanar with C, F, and G in the diagram of rectangular prism option (4) D is correct.
Learn more about the rectangular prism here:
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