Answers
Related Questions
a loading dock is 5 feet high. if a ramp makes an angle of 25 d with the ground and is attached to the loading dock, how long is the ramp?
Answers
The length of the ramp is 10.7 feet high.
What is ratio of triangle ?
The definition of the tangent (tan) of the angle is the ratio of the opposing to the neighbouring in any right triangle. The tangent's value for the red triangle is given by: tan(c) = 1 / 2 =.5. We maintain the same angle c for the blue triangle, but we have doubled the sizes of the adjacent and opposite sides.
It always helps to draw a diagram and find the right triangle.
In this case, the triangle has the loading dock as one leg, the ramp as the hypotenuse, and the distance of the ramp from the loading dock as the other leg.
Call that distance x. Use the tangent of 25° to find x.
=> tan(25°) = [tex]\frac{opposite }{adjacent}[/tex]
=> tan(25°) = [tex]\frac{5}{x}[/tex]
=> x = 5/ tan(25°)≈ 10.7 feet.
Hence the length of ramp is 10.7 ft.
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can someone explain how to solve this?
Answers
Therefore, you can solve a missing angles using the known angles
1st Triangle:
70 + 70 + ? = 180
140 + ? = 180
? = 40
2nd Triangle:
51 + 35 + ? = 180
86 + ? = 180
? = 94
I hope this helps
Select the equation of the line that goes through the point (6,-10) and is
parallel to the equation below.
6x + 2y = 12
Answers
Answer:
3x+y = 8
yes, its parallel
Step-by-step explanation:
Choices:
a. 3x+y=18
b. 3x+y=-8
c. 3x+y=8
d. 3x+y=-10
1. if we plug in (6, -10) to 3x+y=8 we get:
3(6) + (-10) = 8
18 - 10 = 8
8 = 8, this is true
2. if we simplify 6x+2y=12 we get:
2y = -6x + 12
y = -3x + 6
if we simplify 3x+y = 8 we get
y = -3x + 8
the slopes of the equations are the same, therefore they are parallel.
write an equation for the line, in point slope form that passes through the following points
(3,4)
(6,10)
Answers
The linear equation in the slope-point form is:
(y - 4) = 2*(x - 3)
How to get the equation for the line?
For a line with a slope M that passes through a point (a, b), the point-slope form is:
(y - b) = M*(x - a)
And if the line passes through two points (x₁, y₁) and (x₂, y₂), then the slope is:
M = (y₂ - y₁)/(x₂ - x₁)
In this case the line passes through (3,4) and (6,10) is:
M = (10 - 4)/(6 - 3) = 6/3 = 2
And using the point (3, 4), we can write:
(y - 4) = 2*(x - 3)
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What are the steps for using a compass and straightedge to construct the bisector of ∠g? two rays share a common endpoint labeled g, forming an obtuse angle. one ray is horizontal and points right. the second ray is inclined to horizontal in upward-left direction. drag the steps and drop them in order from start to finish. arrange responses in the correct order to answer the question. select a response, navigate to the desired position and insert response at that position. responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. responses can be moved using the up and down arrow keys or by dragging with a mouse.
Answers
The steps for using a compass and straightedge to construct the bisector will be:
1. Place the point of the compass on point G and draw an arc that intersects the sides of ∠G.
2.Label the points of intersection as points H and J.
3. Place the point of the compass on point H and draw an arc in the interior of the angle.
4. Without changing the opening of the compass, place the point of the compass on point J and draw another arc in the interior of the angle.
5.Label the intersection of the arcs in the interior of the angle as point K.
6. Use the straightedge to draw GK.
What is bisection?Bisection in geometry is the division of something into two equal or congruent portions, usually by a line, which is then known as a bisector. The segment bisector and the angle bisector are the most commonly used forms of bisectors.
To bisect anything implies to divide it into two equal sections. A bisector is a line that divides anything into two equal pieces. Bisectors include segment bisectors, angle bisectors, and shape bisectors. A segment bisector is a line that runs across the center of a particular segment.
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Write the following series in sigma notation. 6 + 8 + 10 + 12 + 14 + 16 + 18
Answers
The sigma notation of the series is [tex]\sum_{n=3}^9(2n)[/tex]
How to write the sigma notation?
This is a series of even numbers which is represented as 2nTo get the first number of the series ,2n = 6
n = 3
To get the last number of the series,2n = 18
n = 9
The limits are [3,9]
Thus the sigma notation can be represented as,[tex]\sum_{n=3}^9(2n)[/tex] = 84
What is a sigma notation?
Summation, often known as sigma notation, is a concise way to represent a series. The sum is denoted by the capital letter ∑ in Greek. The summation index must be replaced with consecutive integers starting with the first value and ending with the last value in order to produce the terms of a series provided in sigma notation.To learn more about sigma notation, refer:
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I could really use some help on this image asap
Answers
Angle x = 90°, y = 5 and angle z = 75°.
Here, we are given two figures as shown in the figure above.
Figure 1 is a kite. The diagonals of a kite bisect each other at right angles.
Thus, here, the angle made by the intersection point of diagonals BD and AC will be 90°.
Thus, angle x = 90°.
Now, figure 2 is an isosceles trapezoid. In an isosceles trapezoid the two non-parallel sides are equal and the angles opposite to them are also equal.
Thus, here the two non-parallel sides- FE and GH will be equal.
⇒ y = 5
Further, the angle opposite to GH is 75° and that opposite to FE is z.
Thus, z = 75°
Hence, we find that angle x = 90°, y = 5 and angle z = 75°.
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how did you get the answer for 1.13-0.46
help me....
Answers
Answer: 0.67 Just subtract
Step-by-step explanation:
I'm confused about what you are asking But ill assume you want to subtract?
1.13 minus 0.46 is 0.67
Answer:
0.67
Step-by-step explanation:
just get the answer taking out
NEED HELP!!! TIMED!!!
An exponential function and a quadratic function are graphed below. Which of the following is true of the growth rate of the functions over the interval 0 <= x <= 1?
The exponential grows at half the rate of the quadratic.
The exponential grows at the same rate as the quadratic.
The exponential grows at twice the rate of the quadratic.
The exponential grows at four times the rate of the quadratic.
Answers
The statement which is true of the growth rate of the functions over the interval 0 ≤ x ≤ 1 is that: B. The exponential grows at the same rate as the quadratic.
What is the rate of change?The rate of change can be defined as a type of function that describes the average rate at which a quantity increases or decreases with respect to another quantity.
Mathematically, the rate of change can be calculated by using this formula;
[tex]Rate = \frac{Change\;in\;y\;axis}{Change\;in\;x\;axis}\\\\Rate = \frac{y_2\;-\;y_1}{x_2\;-\;x_1}[/tex]
From the given interval and graph (see attachment), the data point for the exponential function would be as follows:
Point (x₁, x₂) = (0, 1)Point (y₁, y₂) = (1, 2)Next, we would calculate the rate of change of the exponential function over the given interval:
Rate of change = (2 - 1)/(1 - 0)
Rate of change = 1/1
Rate of change = 1.
From the given interval and graph (see attachment), the data point for the quadratic function would be as follows:
Point (x₁, x₂) = (0, 1)Point (y₁, y₂) = (0, 1)Next, we would calculate the rate of change of the quadratic function over the given interval:
Rate of change = (1 - 0)/(1 - 0)
Rate of change = 1/1
Rate of change = 1.
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For i = √-1, (1 + 2i)² = ?
Answers
The value of given expression is F(x) = (-3 +4√-1)
What is the expression?An expression is a set of numbers or variables combined using the operations + , – , × or ÷ . Arithmetic expression that contains only numbers and mathematical operators and algebraic expression that contains variables, numbers and mathematical operators.
Given i = √-1
F(x) = ( 1 + 2i)²
F(x) = ( 1 + 4i² + 4i)
F(x) = ( 1 - 4 + 4√-1)
F(x) = ( -3 + 4√-1)
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4/7 divided by (-5/4)
Answers
Answer:
-16/35
Step-by-step explanation:
4/7 ÷ -5/4
=> 4/7 × -4/5
=> -16/35
a/ Find a polynomial U with integer coefficientsthat satisfies the given conditions: degree 5, theleading coefficient 63, and zeros are 1/3, whichhas multiplicity 2, -4, and i
Answers
Since the zeroes are 1/3 which has multiplicity 2, -4 and i, then
The factors of the polynomial are
[tex]x=\frac{1}{3}\rightarrow3x=1\rightarrow(3x-1)\rightarrow(3x-1)^2[/tex][tex]x=-4\rightarrow(x+4)[/tex][tex]x=i\rightarrow(x-i)(x+i)\rightarrow x^2-i^2\rightarrow(x^2+1)[/tex]Multiply the 3 factors
[tex]\begin{gathered} (3x-1)^2=(9x^2-6x+1) \\ U=(9x^2-6x+1)(x+4)(x^2+1) \end{gathered}[/tex]Multiply The first 2 brackets
[tex]U=(9x^3+36x^2-6x^2-24x+x+4)(x^2+1)[/tex]Add the like terms in the 1st bracket
[tex]U=(9x^3+30x^2-23x+4)(x^2+1)[/tex]Multiply the 2 brackets
[tex]U=9x^5+30x^4-23x^3+4x^2+9x^3+30x^2-23x+4[/tex]Add the like terms
[tex]U=9x^5+30x^4-14x^3+34x^2-23x+4[/tex]Since the leading coefficient is 63, multiply all terms by 7
[tex]U=63x^5+210x^4-98x^3+238x^2-161x+28[/tex]Write equation trough (-2,-4) and parallel line 2x+4y=8
Answers
Lines that are parallel to one another on a plane do not intersect or meet at any point. They are always equidistant from one another and parallel. Non-intersecting lines are parallel lines. Parallel lines can also be said to meet at infinity.
Detailed explanation:The slope of parallel lines is the same. By converting the line 2x -4y = 8 to slope intercept form, first determine its slope.
4y = 8-2x y = 1/2x - 4 2x + 4y = 8
Here, the slope is 1/4
Fill in the point slope form with (-2, -4) and m = 1/4 After that, simplify to obtain the standard form and slope intercept form.
The slope intercept form is y = 1/4x + 6, while the point slope form is y - (-4) = 1/4(x+4).
Now, by rearranging the terms into the formula Ax + By = C, the standard form may be discovered.
6 becomes -1/4x + y = 6 when y= 1/4x + 6. Since fractions for A or B cannot be expressed in standard form, the equation is multiplied by 4 to get x + 4 y = 24.
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HELP PLEASEE ASAP HELP HELP!!
Which equations represent exponential growth?
Which equations represent exponential decay?
Place each equation with its correct group (decay or growth)
Exponential Growth Exponential Decay
V = 18,000(0.78)^t
P = 4500(1.04)^t
A = 7000(1.0575)^t
P = 50(1/2)^t
P = 45(2)^t
A = 9000(0.9)^t
Answers
The equation are
1. V = 18,000(0.78)^t is exponential decay.
2. P = 4500(1.04)^t is exponential growth.
3.A = 7000(1.0575)^t is exponential growth.
4.P = 50(1/2)^t is exponential decay.
5.P = 45(2)^t is exponential growth.
6.A = 9000(0.9)^t is exponential decay.
Given that,
We have to find which equation is exponential growth and exponential decay.
Knowing that an exponential function takes the form where a represents the function's y=a.bˣ initial value a and b represents its exponential growth or exponential decay, B should be more than 1 for exponential growth and less than 1 for exponential decay.
b>1= exponential growth.
b<1= exponential decay.
Let's now examine each equation in turn to see which one represents exponential growth and which exponential decay.
1. [tex]V=18000(0.78)^{t}[/tex]
The initial values a and b in this option are 18000 and 0.78 respectively. Since 0.78 is smaller than 1, this equation describes exponential decay.
2.[tex]P=44500(1.04)^{t}[/tex]
Since 1.04 is obviously more than 1, and we can see that a = 4,500 and b equals 1, we may conclude that this equation represents exponential growth.
3.[tex]A=7000(1.0575)^{t}[/tex]
Since 1.0575 is clearly more than 1 and since a equals 7000 and b equals 1.0575, this equation clearly represents exponential growth.
4.[tex]P=50(1/2)^{t}[/tex]
Given that a = 50 and b equals 1, and that 0.5 is unmistakably less than 1, it is evident that this equation describes exponential decay.
5. [tex]P=45(2)^{t}[/tex]
Since a and b are equal to 45 and 2, respectively, and 2 is obviously greater than 1, this equation represents exponential growth.
6.[tex]A=9000(0.9)^{t}[/tex]
Since 0.9 is obviously less than 1 and that an equals 9000 and b equals 0.9, this equation represents exponential decay.
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the delivery times for a distributing site are normally distributed with an unknown population mean and standard deviation. if a random sample of 25 deliveries is taken to estimate the mean delivery time, what t-score should be used to find a 98% confidence interval estimate for the population mean?
Answers
The t-statistic is the t-value at the intersection of the row for DF = 25 and the 0.025 (one-tail) column is 2.06
How to calculate confidence interval for population mean for small sample?If the sample size is given to be n < 30, then for finding the confidence interval for mean of population from this small sample, we use t-statistic.
The number of degrees of freedom will be n - k
The confidence level in the confidence interval
The parameters given in the question is;
The number of pizza orders in the sample is n
The sample size = 26
The number of samples used in the estimate, k = 1 group of 26 randomly sampled.
The level of confidence that the interval contains the population mean = 95%
Therefore, the significance level;
α = 1 - 95% = 1 - 95/100
= 0.05
Here α-level for the upper and lower limit of the interval are;
α/2 = 0.05/2 = 0.025 long
The degrees of freedom, DF = n - k
DF = 26 - 1 = 25
The t-statistic is the t-value at the intersection of the row for DF = 25 and the 0.025 (one-tail) column (0.025 two-tail column);
[tex]t_{\alpha/2, DF} = 2.06[/tex]
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Anyone help this is 1 grade homework
Answers
Answer:
(What's a number story?) Sam had 10 coins. Then, he gave 3 to his sister. How much money does he have left?
Addition fact: I think it's that you have to take the amount of money he has left (Which is 7), and add it to 3 to make 10.
Hope this helps!
please help me with this!!!!
Answers
Answer:
x int = (5,0)
y int = (0,-2)
Step-by-step explanation:
To solve for x int set y as zero
4x - 10(0) = 20
4x - 0 = 20
4x = 20 divide by 4 to get x alone
x = 5
To solve for y set x as zero
4(0) - 10y = 20
0 - 10y = 20
- 10y = 20 divide by -10 to get y alone
y = -2
so 4x-10(0)=20
4x-0=20
4x=20
x=5
then do the same with x
4(0)-10y=20
0-10y=20
-10y=20
y=-2
so the x-intercept is 5 and the y-intercept is -2
please help!! I really need help please help
Answers
Answer:
Step-by-step explanation:
Second answer: Congruent angles are two or more angles that are identical to each other. Thus, the measure of these angles is equal to each other.
Third answer: The transitive property of equality formula is given as follows: If x = y and y = z, then x = z. Where x, y and z belongs to the same category elements. For example, if “x” represents the measurement of a line segment, then y and z should represent the measurement of the line segment.
Fourth answer: Congruent segments are segments that have the same length. ≅ Points that lie on the same line are called collinear.
Determine the value for j in the equation 13 over 20 equals j plus 9 over 20.
4 over 20
4 over 40
2 over 20
22 over 40
Answers
Answer:
j = [tex]\frac{4}{20}[/tex]
Step-by-step explanation:
[tex]\frac{13}{20}[/tex] = j + [tex]\frac{9}{20}[/tex] ( subtract [tex]\frac{9}{20}[/tex] from both sides )
[tex]\frac{13}{20}[/tex] - [tex]\frac{9}{20}[/tex] = j , that is
j = [tex]\frac{4}{20}[/tex]
Answer: its 22over40
Step-by-step explanation:
17. Cora is buying a $109 dress for the school dance. She has two coupons, one for $10 off and one for 15% off. If she is allowed to use both, is it better to take the $10 off first, then the 15%? Or is it better to take the 15% off first, then the 10$ off? Justify your answer by giving the final prices.
Answers
Step-by-step explanation:
If Cora uses the 15% off coupon first then the new total is $92.65. After using the $10 off coupon, the total is $82.65.
If Cora uses the $10 off coupon first, the total goes to $99. Taking 15% off of $99 leaves her with a total of $84.15.
Thus, it would be better for Cora to use the 15% off coupon before using the $10 off coupon.
Under her cell phone plan, Nora pays a flat cost of $35.50 per month and $5 per gigabyte. She wants to keep her bill at $42 per month. Write and solve an equation which can be used to determine g, the number of gigabytes of data Nora can use while staying within her budget.
Answers
Answer:
Step-by-step explanation:
the answer is 1.3 gigabytes
Answer:the equation which can be used to determine the number of gigabytes is 35.5 + 5x = 42 and the solution is x = 1.3
Step-by-step explanation:
the research and rescue center currently has 9 snow geese. Each goose eats 16 ounces of seeds each day. There are 1,656 ounces of seeds. how many days of food is available for all snow geese before the center runs out?
PLEASE I WILL GIVE BRAINIES
Answers
The food is available for all snow geese for 11.5 days before the research and rescue center runs out.
According to the question,
We have the following details:
Number of snow geese in the research and rescue center = 9
Number of ounces of seeds eaten by each goose = 16 ounces
So, number of ounces of seeds eaten by 9 snow geese = (16*9) ounces
Number of ounces of seeds eaten by 9 snow geese = 144 ounces
Now, there are 1,656 ounces of seeds.
So, the number of days before the center runs out of the food = Total number of ounces of seeds/Number of ounces of seeds eaten by 9 snow geese
Number of days before the center runs out of the food = 1656/144
Number of days before the center runs out of the food = 11.5 days
Hence, the number of days for which food is available for all snow geese before the center runs out is 11.5 days.
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Answer:
The food is available for all snow geese for 11.5 days before the research and rescue center runs out.
Step-by-step explanation:
Which of the following correctly shows clustering for the problem 24 x 14?
24 x 12 + 24 x 2
24 x 10 + 24 x 4
24 x 10 + 24 x 14
20 x 10 + 4 x 4
Answers
HELPME PLEASE
Find the slope if exist of the line containing the pair of points
(7,0) and (0,-1)
The slope m=
Answers
Answer:
m = 1/7
Step-by-step explanation:
Given:
(x1 = 7, y1 = 0) and (x2 = 0, y2= -1)
We know:
slope m = vertical change in y / horizontal change in x
m= (y2-y1)/(x2-x1)
Calculate slope:
m= (y2-y1)/(x2-x1) = (-1-0)/(0-7) = -1/ -7 = 1/7
please help i don’t get this one
Answers
Answer: 1.001 x 10^3
Step-by-step explanation:
What are the properties of a right angle?
Answers
Answer:
Having 1 angle being 90 degrees
VAT is set at 15%, how do you calculate the amount of VAT if the price of an article is R345
Answers
51.75 is the amount of VAT.
How does the VAT work?
VAT, or value-added tax, is a tax that must be paid on purchases made within the borders of EU member states. The end consumer of the commodity or service is always responsible for paying the tax.In the United States, there is no VAT. However, even though the US doesn't have a VAT, consumers are still required to pay federal excise taxes when buying goods like cigarettes, alcohol, and fuel. Several states and towns also levy sales taxes.= 15% of VAT on Rs 345
= 345 * 15%
= 345 * 15/100
= 51.75
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value of x in the diagram shown is:
Answers
Consider the following 8 numbers, where one labelled
x
is unknown.
34
,
42
,
38
,
x
,
4
,
25
,
3
,
13
Given that the range of the numbers is 55, work out 2 values of
x
.
Answers
The values of x that will give a range of 55 include 42 and -13.
What is range?A range simply means the difference between the highest number that is given and the lowest number that is given.
In this case, the chose numbers include:.
Larger number = 42
Smaller number = -13
Range = Larger number - Small number
= 42 - (-13)
= 42 + 13
= 55
The range of 55 is gotten.
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The two possible values of x given the range are -13 and 58.
What are the possible values of x?Range is used to measure the variation of a dataset. Range is the difference between the highest number in the dataset and the lowest number in the dataset.
Range = highest number - lowest number
x can either be the largest number in the dataset or the smallest number in the dataset.
Value of x if it is the smallest value in the dataset.
42 - x = 55
x = 42 - 55
x = -13
Value of x if it is the largest value in the dataset.
x - 3 = 55
x = 55 + 3
x = 58
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Helpdsjfhbsudfbzkjcxnzj
Answers
The area of Rachel's bedroom is 72 square feet. The bedroom area that is eight times of Rachel's closet. The length of the closet if it is 3 feet wide is 3.
Given that,
The area of Rachel's bedroom is 72 square feet. The bedroom has an area that is eight times that of Rachel's closet.
We have to find what is the length of the closet if it is 3 feet wide.
First we divide the area of Rachel's bedroom is 72 square feet and eight times that of Rachel's closet.
72/8=9
Now, we multiply 3 and the length as l is equal to 9 feet wide
3×l=9
l=9/3
l=3
Therefore, The length of the closet if it is 3 feet wide is 3.
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