I really need help with this. I don’t understand it at all. It was due yesterday and I need to finish it. Please help.
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Related Questions
The area of a rectangular room is 750 square feet. The width of the room is 5 feet less than the length of the room. Which equations can be used to solve for y, the length of the room? Select three options. y(y + 5) = 750 y2 – 5y = 750 750 – y(y – 5) = 0 y(y – 5) + 750 = 0 (y + 25)(y – 30) = 0
Answers
Answer:
B, C, E
Step-by-step explanation:
A: False
B: True
C: True
D: False
E: True
PLEASE HELP FAST
X=
Y=
Find value of missing variable
Answers
Step-by-step explanation:
hope u understand......
What is the range of the graphed function?
{x |-2 < x < 2}
{y |-2 < y < 2}
{x | x is a real number}
{y | y is a real number}
Answers
Answer:
{y| y is a real number}
Step-by-step explanation:
The range is all the y's that an equation can produce or all the y's on a graph of the function.
This graph has every and any real y (because it keeps going forever, even off the screen or paper) It's a little hard to see, bc we just see it going left and right mostly, but it is also slightly going up (to the left) and down (to the right)
Simplify the expression
Answers
Answer:
sin²x
Step-by-step explanation:
[tex]\frac{\tan \left(x\right)}{\tan \left(x\right)+\cot \left(x\right)}[/tex]
[tex]=\frac{\sin ^2\left(x\right)}{\cos ^2\left(x\right)+\sin ^2\left(x\right)}[/tex]
Rewrite using trigonometric identities
[tex]=\sin ^2\left(x\right)[/tex]
HELP ASAP NEED ANSWER
Answers
Y =85
This is because the opposite angles need to add up to 180 degrees , hope this helps :)
what’s the area and the perimeter and of the triangle?
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Answer:
Perimeter: 26.43 m
Area: 27.99 sq m
Step-by-step explanation:
To find the perimeter we just add all the sides, 11.1+9.33+6 = 26.43
To find the area of a triangle, we use the formula we do (bh)/2
9.33 * 6 = 55.98
55.98 / 2 = 27.99
Hope this helped you! I would appreciate a Brainliest if this helped you a lot! Thank you, and have a good day!
Answer:
We first need to determine the perimeter of the triangle which is done by adding up all of the sides. When combining [tex]11.1\ m[/tex], [tex]9.33\ m[/tex], and [tex]6\ m[/tex] we get a final answer of [tex]26.43\ m[/tex] as the perimeter of the triangle.
The second part that we need to determine is the area of the triangle which is done by using [tex]A=\frac{1}{2}*b*h[/tex]. In this example our base is [tex]6\ m[/tex] and our height is [tex]9.33\ m[/tex]. So when inputting those values into our area equation, we get [tex]A=27.99\ m^2[/tex]
Hope this helps! Let me know if you have any questions
Three times x decreased by four is 17.
What is x?
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Step one add 4 to both sides to cancel out the four:
3x=21
Then divide 3 on both sides to cancel the 3 out and isolate/figure out X:
X=7
which pair of sides in this shape are parallel
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The side AE and side CD are parallel to each other because they will never intersect to each other.
What is a regular polygon?A polygon is a two-dimensional geometric figure having a finite number of sides. Straight-line segments are linked end to end to make a closed shape on the sides or edges of a polygon. The vertices or corners are the spots where two line segments intersect, resulting in an angle.
As we know, the parallel lines never intersect to each other, they go infinitely without crossing each other.
As we can see in the figure (refer to the attached picture)
Line AE and CD are parallel to each.
Thus, the side AE and side CD are parallel to each other because they will never intersect to each other.
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this box can be packed with 48 unit cubes. The edge length of each unit cube is 1 meter. What is the volume of the box?
Answers
Answer:
48 m^3
Step-by-step explanation:
along the length = 8 cubes = 8 m
breadth = 3 cubes = 3 m
height = 2 cubes = 2 m
volume = 48 m^3
ANdy has some sweets. He gives on quator of them sweets to Dan. Dan eats five sweets and has one left. How many sweets did Andy start with
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Answer: 24
Step-by-step explanation:
¼ of Andy's sweets = 5 + 1 with Dan
¼ of Andy's sweet is 6
Andy has 6×4 sweet
An angle measures 130.8° more than the measure of its supplementary angle. What is the measure of each angle
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Answer:
The angles are 24.6° and 155.4°
Step-by-step explanation:
Supplementary angles:Supplementary angles add up to 180°
Let the measure of the supplementary angle = x
So, the angle is 130.8 more than 'x'
The angle = x + 130.8
The angles are supplementary.
x + (x + 130.8) = 180
x + x + 130.8 = 180
2x + 130.8 = 180
2x = 180 - 130.8
2x = 49.2
x = 49.2/2
x = 24.6
x + 130.8 = 24.6 + 130.8
= 155.4
The angles are 24.6° and 155.4°
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[tex]\blue{\textsf{\textbf{\underline{\underline{Question:-}}}}[/tex]
An angle measures 130.8º more than its supplementary angle. What is the measure of each angle?
[tex]\blue{\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}[/tex]
Supplementary angles add up to 180º.
In order to find the unknown angles, we should first let the angle be x.
Set up an equation:-
(remember, there are 2 angles, x and x+130.8):-
x+x+130.8=180
Add the x's:-
2x+130.8=180
Subtract 130.8 from both sides:-
2x=49.2
Divide by 2 on both sides:-
x=24.6º
To find the other angle, add 130.8º:-
24.6+130.8=155.4º
Second angle=155.4º
Now, we need to make sure our solution is correct.
We can easily check it by adding both angles together and seeing whether or not we end up with 180:-
155.4+24.6=180
180=180
Since the left-hand side equals the right-hand side, our solution is indeed correct.
The angles are 24.6º and 155.4º
Good luck.
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Suppose Josh Borrows $2000 at an interest rate of 3% compounded each year. Assume that no payments are made on the loan.
Do not do any rounding.
(A) Find the amount owed at the end of year 1.
(B) Find the amount owed at the end of 2 years.
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Answer:
a)2975
b)3450
Step-by-step explanation:
Cones a and b are similar.
the surface area of cone a is 36cm2.
the surface area of cone b is 100cm2.
the volume of cone a is 162cm3.
work out the height,
h
, of cone a and the volume of cone b:
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The height of cone A is 12 and the volume of cone B is 750
How to determine the height and the volume?The given parameters are:
Surface area of cone a is 36cm²Surface area of cone b is 100cm²Volume of cone a is 162cm³Both cones are similar.
The similarity ratio is represented as:
[tex](\frac{V_A}{V_B})^\frac 13 = (\frac{A_A}{A_B})^\frac 12 = \frac{h_A}{h_B}[/tex]
Where:
V represents volumeA represents surface areah represents heightRemove the height expression in the equation [tex](\frac{V_A}{V_B})^\frac 13 = (\frac{A_A}{A_B})^\frac 12 = \frac{h_A}{h_B}[/tex]
So, we have:
[tex](\frac{V_A}{V_B})^\frac 13 = (\frac{A_A}{A_B})^\frac 12[/tex]
This gives
[tex](\frac{162}{V_B})^\frac 13 = (\frac{36}{100})^\frac 12[/tex]
Evaluate the exponent of 1/2
[tex](\frac{162}{V_B})^\frac 13 = \frac{6}{10}[/tex]
Take the cube of both sides
[tex]\frac{162}{V_B} = \frac{216}{1000}[/tex]
Make VB the subject
[tex]V_B = \frac{162 * 1000}{216}[/tex]
Evaluate
[tex]V_B = 750[/tex]
Remove the area expression in the equation [tex](\frac{V_A}{V_B})^\frac 13 = (\frac{A_A}{A_B})^\frac 12 = \frac{h_A}{h_B}[/tex]
[tex](\frac{V_A}{V_B})^\frac 13 = \frac{h_A}{h_B}[/tex]
Substitute known values
[tex](\frac{162}{750})^\frac 13 = \frac{h_A}{20}[/tex]
Multiply both sides by 20
[tex]h_A = 20 *(\frac{162}{750})^\frac 13[/tex]
Evaluate
[tex]h_A= 12[/tex]
Hence, the height of cone A is 12 and the volume of cone B is 750
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please asap i dont need explaination correct answer gets brainliest
Answers
Answer:
it is 65 byeeeeeeeeeeeeeeeeee
Answer:
well total surface area of this prism is sum of area all sides of prism.
therefore 170 + 170 + 160 + 120 + 120 = 740m²
Therefore total surface area is 740m² i didn't give explanation since you said you don't need it.
By : Modern Einstein
8 A clock in the shape of an hour glass is made up of two identical cones
connected at their vertices. The radius of each cone is 7 centimeters. The
combined height of the two cones is 11.8 centimeters. What is the volume
of the clock?
Jason made a long Role hy ipining three different lengths of cylindrical poles
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Answer:
The two cones are aligned on edge to edge so that the total volume of the hourglass becomes 2∗13πr2h
Step-by-step explanation:
a) When the sand has y units left in the upper cone the height of the cone becomes y, the radius remains 1cm.Now let's take the right triangle In the upper coneAnd by similar triangles property we found that the radius of the cone in which the amount of sand is left is y3 unitsNow the volume of the sand in the remaining part of the upper cone isπy32y which gives πy327Now if we apply the same similar triangle property with the cone in the below we find that the radius of the part it has filled up remains the same as y3unitsSo the volume it has filled is (3-y) from the top cone which says that the volume filled on the bottom cone has a height of (3-y)So therefore the volume of the frustum which it has filled up isπ3h(R2+r2+rR) {Is the volume of the frustum with two radii r and R with a height h}i.eπ3(3−y)(12+(y/3)2+(y/3))So now the total volume of the hourglass in terms of y is π3(3−y)(12+(y/3)2+(y/3))+πy327b) The next question tells us that when the height of the sand in the below cone reaches up a height of h centimetreswhich is exactly 3-y in the previous questionso substituting y = h-3 in the previous question we'll find the volume of the hourglass in terms of hπ(h−3)327+π3(6−h)(12+((h−3)/3)2+((h−3)/3)) .c) Total volume of the hourglass isV=V1+V2⇒3π4=πy327+π−π27(3−h)3Putting h=1We have the value of y as⇒3π4=π27y3+π+π278..............(1)⇒y=(54)13Differentiating the first equation with respect to t we have0=π9y2dydt+π9(3−h)2dhdtPutting values that dydt=−0.14inches/sec at h =1 and for ⇒y=(54)13We have0=π9(54)132∗(−0.14)+π922dhdt⇒0.1956π9=4π9dhdt⇒dhdt=0.19564⇒dhdt=0.0489
The formula below is used to convert a temperature in degrees Celsius, C to a temperature in degrees Fahrenheit, F
F = 1.8C + 32
The high temperature in a mountain city was 15 C. What was the high temperature in degrees Fahrenheit?
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F = 1.8C + 32
F= 1.8(15)+32
F= 59
F=27+32
F=59 degrees
What is the measure of ∠B?
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Answer:
∠B=19°
Step-by-step explanation:
At the endpoints of a diameter, angle c meets the circle. It intercepts a 180-degree arc.We know that the measure of C is 90 degrees because the measure of an inscribed angle is half the measure of its intercepted arc. Angles of triangle of ABC must add up to 180.
m∠A+m∠B+m∠C= 180°
71°+m∠B+90°=180°
m∠B+161°=180°
m∠B=19°
Please help
This diagram shows rectangular prism ABCDEFGH. Rectangle CDEF is formed by connecting
opposite edges CD and FE.
What is the area of rectangle CDEF? If necessary, round your answer to the nearest tenth.
Answers
Answer:
153 in^2
Step-by-step explanation:
To find the area of a rectangle, we can multiply the length and the width. The rectangle CDEF has length CF and width FE. We already know FE is the same as GH which is 9in. CF is the hypotenuse of right triangle FGC. Th legs are FG which is the same as EH, 8 and GC, which is the same as AE, 15. Using the pythagorean theorem, we can say that:
GC^2 + GF^2 = CF^2
64 + 225 = CF^2
CF^2 = 289
CF = 17
To find the rectangle's area, we multiply FE and CF to get 153 in^2
what is 56.78 to one significant figure
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Answer:
60.
Step-by-step explanation:
The second digit is 6, so we round up the first digit and add training zero. There is no need to add the '00' after the decimal point.
help asap check picture
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The remainder of the given expression will be 66.
What is division?Division is a method of distributing a group of things into equal parts. It is one of the four basic operations of arithmetic.
The given polynomlal x⁴+3x³-6x²-12x-8 will be divided by x-3 so we need to find the remainder:-
x-3) x⁴+3x³-6x²-12x-8 ( x³-6x²+12x+24
x²-3x³
_______________
6x³-6x²-12x-8
6x³-18x²
________________________
12x²-12x-8
-12x²-36x
_____________________
24x-8
24x-72
_______________________
66
Hence the remainder of the given expression will be 66.
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Tina will use the number cube, the spinner, and the coin shown below in a game. The number cube has faces numbered 1 through 6. Tina will roll the cube, spin the spinner, and flip the coin one time each to form an outcome. How many unique outcomes where the number on the cube is greater than 4 are possible?
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Answer:
2
Step-by-step explanation:
We dont know how many spinner slots there are so I assume 8.
to get greater than 4 you need the cube which has 6 sides. Only 5 and 6 are > 4. So 2.
Sorry if this is incorrect...
math question on photo please
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[tex]2ay + 3az = 2dx + 3dy[/tex]
[tex]2ay - 3dy = 2dx - 3az[/tex]
[tex]y(2a - 3d) = 2dx - 3az[/tex]
[tex]y = \frac{2dx - 3az}{2a - 3d} \\ [/tex]
A bag of marbles contains three blue,one black,and four yellow marbles.If two marbles are chosen at random without replacement,what is the probability that both marbles will be yellow?
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The probability that both marbles chosen from the bag will be yellow is 3/14.
What is the probability?Probability determines the odds that an event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.
The probability that both marbles chosen from the bag will be yellow = (number of yellow marbles / total number of marbles) x (number of yellow marbles - 1/ total number of marbles - 1)
4/8 x 3/7 = 3/14
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The graph below shows a company's profit f(x), in dollars, depending on the price of erasers x, in dollars, being sold by the company:
graph of quadratic function f of x having x intercepts at ordered pairs 0, 0 and 8, 0. The vertex is at 4, 270
Part A: What do the x-intercepts and maximum value of the graph represent? What are the intervals where the function is increasing and decreasing, and what do they represent about the sale and profit?
Part B: What is an approximate average rate of change of the graph from x = 1 to x = 4, and what does this rate represent?
Answers
Answer:
A. x-intercepts: prices at with profit is zero
maximum: price at which profit is a maximum
increasing: (-∞, 3); decreasing: (3, ∞) — profit increases with increasing pen price below $3, decreases with increasing pen price above $3
B. -26 2/3; loss of profit for each dollar increase in pen price
Step-by-step explanation:
Part A:
The definition of the function tells you what points on the graph represent. The x-intercept at x=0 tells you the company's profit will be zero when the price of pens sold by the company is zero.
The x-intercept at x=6 tells you the company's profit will be zero when the price of pens sold is $6.
The maximum value of 120 at x=3 tells you the company's profit will be $120 when the price of pens sold is $3.
The graph goes "uphill" for x < 3, so the function is increasing for x < 3. The function goes "downhill", so is decreasing, for x > 3. This tells you profit increases with pen price when the price is below $3, and decreases with pen price above $3.
__
Part B:
The equation of the function describing the graph is ...
f(x) = -120/9x(x -6)
so, at x=5, the value is ...
f(5) = -120/9(5)(-1) = 600/9 = 66 2/3
Then the average rate of change from x=3 to x=5 is ...
m = (f(5) -f(3))/(5 -3) = (66 2/3 -120)/2 = (-53 1/3)/2 = -26 2/3
This represents the average change in profit for each dollar increase in the price at which pens are sold.
Question 5 (1 point)
What is the value of "b" in the following quadratic? (Make sure the equation is in
standard form: ax + bx +c= 0)
x^2 + 28 = -11x
Answers
Answer:
b = 11
Step-by-step explanation:
the standard form of a quadratic equation is ax² + bx + c = 0 ( a ≠ 0 )
given
x² + 28 = - 11x ( add 11x to both sides )
x² + 11x + 28 = 0 ← in standard form
with b = 11
Which of the following is the best definition of radiation?
Answers
Answer:
Radiation is the emission and propagation of energy in the form of waves, rays or particles
Step-by-step explanation:
An airplane makes a round-trip supply run that takes a total of 6 hours and is 350 miles each direction. The air current going to the destination is in the direction of the plane at 20 miles per hour. The air current traveling back to the starting point is against the plane at 20 miles per hour. Let x represent the speed of the airplane, in miles per hour, when there is no wind. Replace the values of a, b and c to create the equation that describes this situation.
Answers
The equation that represents this situation (x + 20)b = 350, (x - 20)c = 350 and b + c = 6
What is an equation?
An equation is an expression that shows the relationship between two or more number and variables.
Let x represent the speed of the airplane, in miles per hour, when there is no wind, b represent the time spent going and c represent the time spent travelling back. Hence:
(x + 20)b = 350 (1)
Also:
(x - 20)c = 350 (2)
b + c = 6 (3)
The equation that represents this situation (x + 20)b = 350, (x - 20)c = 350 and b + c = 6
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Answer:
The answer is below!
Step-by-step explanation:
Help:
[tex]1.\ &x^4-61x^2+900=0 \\ 2. \ & x^4-25x^2+144=0[/tex]
Answers
[tex]\bf{1) \ x^4-61x^2+900=0 }[/tex]
Applying the factorization method, for example:
[tex]\bf{ 0=(x^2)^2-61(x^2)+900=(x^2-36)(x^2-25)}[/tex]
[tex]\bf{\\ &=(x+6)(x-6)(x+5)(x-5); }[/tex]
[tex]\bf{ x_1=6 \quad x_2=-6 \quad \ \ \ x_3=5 \quad x_4=5 }[/tex]
[tex]\bf{2) \ x^4-25x^2+144=0 }[/tex]
Applying the factorization method:
[tex]\bf{0&=(x^2)^2-25(x^2)+144=(x^2-16)(x^2-9) }[/tex]
[tex]\bf{ =(x-4)(x+4)(x-3)(x+3); }[/tex]
[tex]\bf{ x_1=4 \quad x_2=-4 \quad x_3=3 \quad x_4=-3 }[/tex]
(06.01)What type of association does the graph show between x and y?
(A) Linear positive association
(B) Nonlinear positive association
(C) Linear negative association
(D) Nonlinear negative association
Answers
Answer:
(A) Linear positive association
Step-by-step explanation:
Hope it helps you in your learning process.
what is this inequalities?
5x ≥45
Answers
Answer:
≥ means equal or bigger.
So 5x should be equal or bigger than 45.
Which means x can be 9 or 10/11/12...
