The typical pole for pole vaulting is 17 feet long. How fast would a pole vaulter have to run (in the direction of the pole) in order for a spectator sitting in the stands to see it 15 feet long
A pole vaulter have to run at 18m/s speed.
According to the statement
The typical pole for pole vaulting is 17 feet long
we use the formula
1/2 m(v)^2 = mgh
Now rearrange the terms
(v)^2 = 2gh
here g = 10 and h = 15 then
substitute the values
(v)^2 = 2*10*15
v = 17.32
So, A pole vaulter have to run at 18m/s speed.
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Given: ABCD is a rectangle.
Prove: ABCD has congruent diagonals.
Rectangle A B C D is shown.
Identify the steps that complete the proof.
♣ =
♦ =
♠ =
By SAS property, ABC ≅ DCB.
How to prove the deductionsIn this question we have to proof ABCD has congruent diagonal. By SAS property and reflexive property it can be proved as follows:
Given:
ABCD is a rectangle.
Prove:
Diagonal AC ≅ Diagonal BD
From the question,
As we can see that, ABCD is a rectangle, it is also a parallelogram.
Thus, ABCD is a parallelogram, opposite sides of a parallelogram are congruent.
⇒ AB ≅ DC
⇒ BC ≅ BC (Reflexive Property of Congruence)
Hence, ∠ABC and ∠DCB are right angles by the definition of rectangle.
∠ABC ≅ ∠DCB (all right angles are congruent)
Therefore, by SAS property, ABC ≅ DCB.
⇒ segment AC ≅ segment BD
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Answer:
♣ = parallelogram side theorem
♦ = SAS
♠ = CPCTC
(Correct On Edgen)
What is the solution to the equation? 4√x-4 =3
A. -8 B. 16 C. 85 D. no solution
[tex] {\qquad\qquad\huge\underline{{\sf Answer}}} [/tex]
Here we go ~
[tex]\qquad \sf \dashrightarrow \: \sqrt[4]{x - 4} = 3[/tex]
[tex]\qquad \sf \dashrightarrow \: x - 4 = (3) {}^{4} [/tex]
[tex]\qquad \sf \dashrightarrow \: x - 4 = 81[/tex]
[tex]\qquad \sf \dashrightarrow \: x = 81 + 4[/tex]
[tex]\qquad \sf \dashrightarrow \: x = 85[/tex]
So, the correct choice is 85
Answer:
Step-by-step explanation:
4√(x-4) = 3
√(x-4) = 3/4
Square both sides:
x - 4 = 9/16
x = 4 + 9/16
x = 4 9/16.
You conduct a poll in which you randomly select 1000 registered voters from New York City and ask if they approve of the job their mayor is doing. The population for this study is
The population for this study is all registered voters from New York City.
What is the population for a study?
it is given that the poll has been carried out among 1000 registered voters from New York City. These 1000 people have been selected randomly from the population of the study.
The available study subset of the target population for a study, for instance, schizophrenics in the researcher's hometown, is known as the study population or population of the study. The sample chosen for the study is known as the study sample.
Study Population In This Case
In this case, out of all the New Yorkers, only the registered voters of the city are eligible for making the target subset. Hence, the registered voters of the New York city make the study population. Furthermore, since 1000 random registered voters are chosen for the poll, those 1000 registered voters make the study sample.
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If my mother has 5 boys and my father has 4 girls, what is the probability of one being a boy?
Answer:
5/9
Step-by-step explanation:
4+5=9 and there are 5 boys
Faith purchased a new car in 1998 for $32,900. the value of the car has been depreciating exponentially at a constant rate. if the value of the car was $19,900 in the year 2003, then what would be the predicted value of the car in the year 2007, to the nearest dollar?
The predicted value of the car in the year 2007 is 13310
Given the purchased value of new car in 1998 is $ 32,900
The value of car was $ 19,900 in the year 2003
We need to find the value of the car in the year 2007
Let the predicted value be x
The exponentially constant rate in 2003
32900*x^5 = $19900 (∵ x^5 = 5 years difference that is 1998 to 2003 )
Now In year 2007
2007 = 32900*x^9
x = 0.9043
The predicted value of the car is 0.09043
But we want the predicted value in 2007
Therefore ,
In 2007 ≈ x = 13310.02
Rounding off to the nearest dollar is $13310
Therefore the predicted value of the car in 2007 is $13310
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If there is a crossword that has three squares that need to be filled, how many possible three letter arrangements are there (assuming they do not have to make a real word, and no letter can be repeated)
There is a crossword that has three squares that need to be filled, how many possible three letter arrangements is 26!/23.
To find the number of possible three letter arrangements.
what is permutation and combination?An arrangement of things in a certain sequence is what we refer to as a permutation. The constituents or components of sets are presented in this section in a sequential or chronological fashion. A coming together or merging of several parts or characteristics in which each of the constituent parts or traits retains its unique identity.
Given that:
26 possible letters
assuming you can repeat them
26*26*26
no listed
ok, lets assume that you can't repeat them
that is 26 times 25 times 24 (because you used 1 each time)
that is 26!/23 (because 26*25*24*23!=26!)
Hence, the number of possible three letter arrangements is 26!/23.
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Option is missing
A.26!
B.26!/3!
C.23!
D.26!/23
What is the equation of the parabola?
coordinate plane with a parabola facing down with vertex at 0 comma 5, the point 0 comma 3 and a horizontal line going through 0 comma 7
y = −one eighthx² + 5
y = one eighthx² + 5
y = one eighthx² − 5
y = −one eighthx² − 5
Option 2. The equation of the parabola is given as y = one eighthx² + 5
How to read the graphWe have the coordinate plane to be passing through the graph at point C on the y axis. This is used to represent the slope.
Hence the slope is 5
The equation of the line is given as y=x²+C
Hence we can see that there is a rising slope. So the answer is Option 2.
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What is the scale factor of dilation
(The smaller triangle is the image the bigger one is the pre image)
Three times got the prize money worth $126,000. the first friend would get three times the amount of the third friend's portion. the third friend would get twice the amount of the second friend's portion. determine the amount that each friend would receive.
128000.
Let the three frithe ends x, y, z x is the first friend y is secmy ond friend
z is third friend
X+y+z=128000
x=4z
z=3y
x=4(3y)=12y put values of x and z in the first equation we got
12y+y+3y=128000
16y=128000
= 128000 - = 8000 16
Put the y value in equation 3 wee got
z=3*8000=24000
Put the z value in equation 2 we got
x=4*24000=96000
8000+24000+96000=128000.
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Which of the following polynomials has a remainder of -7 when divided by x - 2?
ANSWER : -7x + 14
EXPLANATION, to reverse division multiply
Simplify: x^3-1/x^2-1
Answer:(x-1)(x^2+x+1) / (x+1)(x-1)
Step-by-step explanation:
For x^3-「1」→ 1=1^3
For x^2-「1」→ 1=1^2. this way of thinking might help you understand better:)
You can just use a formula of factorizationヾ ^_^♪
[tex]x^{8}+x^{4}+1[/tex]
You did not provide directions. What do you want us to do with your 8th degree polynomial?
Explain how you could use the dimensions of a reduced rectangle and one given measurement of an original rectangle to find a missing measure?
Using the dimensions of a reduced rectangle and one given measurement of an original rectangle:
Set up a proportion using the corresponding partsSolve the proportion to find the missing measureWhat is Reduction?Reduction is a type of dilation that reduces the size of an original figure to form a new figure that is similar to the original. The corresponding lengths of both figures are therefore proportional.
Assuming the dimensions of the reduced rectangle are 10 cm by 4 cm, and the length of the original rectangle is given as 8 cm, to find the missing measure (x), do the following:
Set up a proportion using the corresponding parts
10/8 = 4/x
Solve the proportion using cross products to find x:
10x = (8)(4)
10x = 32
x = 32/10
x = 3.2 cm
The missing length is 3.2 cm.
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Answer:
Using the given measurements of both figures, set up a proportion that has the corresponding parts in the same position. Then solve the proportion using cross products to find the value for the unknown.
Step-by-step explanation:
Set up a proportionCorresponding sides are in the same place in the proportion.Use cross products in the proportion to solve for the unknown.In a right triangle, the length of the hypotenuse is 12 and the measure of one of the angles is 36. What is the length of the other leg
Answer:
Either 9.71 (adjacent to 36°) or 7.05 (opposite 36°)
Step-by-step explanation:
The question doesn't specify which leg is under question. Is it the adacent leg or the opposite leg? I'll assume adjacent.
We can use the acronym
SOHCAHTOA which is a helpful mnemonic for remembering the definitions of the trigonometric functions. For an angle other than the right angle, the following relationships are defined.
SOH: S is sine = Opposite/Hypotenuse
CAH: C is cosine = Adjacent/Hypotenuse
TOA: T is tangent = Opposite/Adjacent
For a side adjacent (A) to the 36° angle, we can use
Cosine = Adjacent/Hypotenuse
Since we know the hypotenuse (12) we can find A:
Cosine(36) = A/12
A = Cosine(36)*12
A = (0.809)*12
Adjacent = 9.71
====================
If the opposite leg is calculated, we would use
Sine= Opposite/Hypotenuse
Sine(36) = Opposite/12
O = (0.5877)*12
Opposite = 7.053
4. The polynomial-4.9² +40t +20 represents the distance above the ground of an object thrown straight up from an initial height of 20 meters and with an initial speed of 40 meters per second. How long does it take the object to
reach it's maximum height?
20.000 s
8.636 s
4.082 s
101 6330
The object represented by h(t) = -4.9t² + 40t + 20 would take 4.082 seconds to reach it's maximum height.
What is an equation?An equation is an expression that shows the relationship between two numbers and variables.
An independent variable is a variable that does not depend on any other variable for its value whereas a dependent variable is a variable that depend on any other variable for its value.
The height (h) is represented by:
h(t) = -4.9t² + 40t + 20
The maximum height is at h'(t) = 0, hence:
h'(t) = -9,8t + 40
-9.8t + 40 = 0
t = 4.082
The object represented by h(t) = -4.9t² + 40t + 20 would take 4.082 seconds to reach it's maximum height.
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20pts!! ANSWER ASAP!! FIRST ANSWER GETS BRAINLIEST
what is the next letter in the pattern below?
a, b, a, a, b, b, a, a, a, b, b, _,
A. c
B. b
C. d
D. a
Answer:
b
Step-by-step explanation:
I'm quite positive its b hopefully:)!
Answer:
B.b if you follow the formula and chances are very high for it to be b
Which is the graph of f(x) = }(4)*2
Answer: D
Step-by-step explanation:
Where the x-intercept is 0.25.
43. A Pop Warner football team had a total loss of 85 yards in penalties on 5 plays. Then triple their yards in penalties on the next 17 plays. What was the final yards the team loss?
Answer:
240 yards lost, if I understand the question correctly.
Step-by-step explanation:
If I read this correctly the team lost 85 yards lost in 8 plays. Then they tripled their loss on the next 17. 3 x 85 = 255 yards lost in the last 17 plays.
Total yards lost was (85 + 255) = 240 yards in 22 plays.
x+y = 8 and 2x-y=7
Anyone can help
Step-by-step explanation:
x=8-y
2x-y=7
2(8-y)-y=7
16-2y-y=7
-3y=-9
y=3
x=8-y
x=8-3=5
Answer:
Hello
Step-by-step explanation:
Méthode par combinaisons linéaires:
[tex]\left\{ \begin{array}{ccc|c|c}x+y&=&8&1&-2\\2x-y&=&7&1&1\\\end {array} \right.\\\\\\\left\{ \begin{array}{ccc}3x&=&15\\-3y&=&-9\\\end {array} \right.\\\\\\\boxed{\left\{ \begin{array}{ccc}x&=&5\\y&=&3\\\end {array} \right. }\\[/tex]
Proof:
5+3=8 and 2*5-3=7
If the bottom row as a result of sythetic division is 1 3 0 4 0, then the quotient is which of the following? Select one:
The quotient of the synthetic division is x^3 + 3x^2 + 4
How to determine the quotient?The bottom row of synthetic division given as:
1 3 0 4 0
The last digit represents the remainder, while the other represents the quotient.
So, we have:
Quotient = 1 3 0 4
Introduce the variables
Quotient = 1x^3 + 3x^2 + 0x + 4
Evaluate
Quotient = x^3 + 3x^2 + 4
Hence, the quotient of the synthetic division is x^3 + 3x^2 + 4
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A canadian goose and a Great blue heron took off in opposite directions. The goose flew at 20 mph, and the heron flew at 10 mph. when they landed, they were 180 miles apart. Altogether, they flew for 14 hours. How long did each bird fly?
The Canadian goose flew for 4 hours and the Great blue heron flew for 10 hours
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
Let a represent the time flown by the goose and b represent the time flown by the heron. Hence:
a + b = 14 (1)
Also:
20a + 10b = 180 (2)
From equation 1 and 2:
a = 4, b = 10
The Canadian goose flew for 4 hours and the Great blue heron flew for 10 hours
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The potential energy p, in a spring is represented using the formula p=1/2kx^2. lupe uses and equivalent equation, which is solved for k to determine the answers to her homework
The value of [tex]k = 2P/x^2[/tex]
We are aware that an object's location might cause it to store energy. When a bow and arrow are used, the energy that is stored when the bow is pulled is what gives the arrow its kinetic energy when it is released.
when a spring is moved away from its equilibrium position, it gains some energy, which we can notice by the tension our hands experience as we stretch it. Potential energy is a type of energy that arises from a change in its position or condition, according to our definition
We know that P=1/2kx^2
Now solving for k
2P = kx^2
Therefore
k = 2P/x^2
Hence the value of k is 2P/kx^2
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Plss help...
Write down the rule in the form y=
Answer:
yxthgggggyhfffghgggggvggvvggvv
I can not factor the denominators on any online calculator so I'm unsure of how to do this. Please help!
Answer: 17/y-5
Step-by-step explanation:
Robinsons tapestry all measure 1.5m x 1 m. express the tapestries night to width using round numbers and ratio notation
The ratio of the tapestries' height to breadth is 3:2 when using full integers.
CalculationThe ratio of two numbers is used to indicate proportions.
A/b, for example, is the ratio of a to b.
Given the subsequent sides, it is a tapestry.
Height = 1.5 m
Width = 1 m
So, height : width= 1.5:1
or, the fraction = 1.5/1=15/10= 3/2
or, it can be said 3:2
Since entire numbers are used, the ratio of the tapestries' height to breadth is 3:2.
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help me please.bnt8349rf8
Answer: No solutions
Step-by-step explanation: there would be no solutions, because these equations have the same slope and different y-intercepts, so they would end up being parallel from each other, and would never intersect or be equivalent.
Answer:
No solution.
Explanation:
Given equations:
(1) y - 4x = -3
(2) y = 4x + 7
Substitute equation 2 into 1
y - 4x = -3
4x + 7 - 4x = -3
7 = -3
As L.H.S ≠ R.H.S, There are no solution.
The lines are parallel and do not intersect each other. Their slope is same.
i dont understand this at all
[tex]\huge\text{Hey there!}[/tex]
[tex]\huge\textbf{What are we solving for?}[/tex]
[tex]\mathsf{56 = w(w + 10) }[/tex]
[tex]\huge\textbf{How are we going to solve for the}\\\\\huge\textbf{equation?}[/tex]
[tex]\mathsf{56 = w(w + 10)}[/tex]
[tex]\mathsf{w(w + 10) = 56}[/tex]
[tex]\mathsf{w(w) + w(10) = 56}[/tex]
[tex]\mathsf{w(w) + 10(w) = 56}[/tex]
[tex]\mathsf{w^2 + 10w = 56}[/tex]
[tex]\huge\textbf{Subtract \boxed{\bf 56} to both sides:}[/tex]
[tex]\mathsf{w^2 + 10w - 56 = 56 - 56}[/tex]
[tex]\huge\textbf{Simplify it:}[/tex]
[tex]\mathsf{w^2 + 10w - 56 = 0}[/tex]
[tex]\huge\textbf{Factor the left side of the equation:}[/tex]
[tex]\mathsf{(w - 4)(w + 14) = 0}[/tex]
[tex]\mathsf{(w - 4)\times(w + 14) = 0}[/tex]
[tex]\huge\textbf{Simplify it:}[/tex]
[tex]\mathsf{w - 4 = 0\ or\ w + 14 = 0}[/tex]
[tex]\mathsf{w = 4\ or \ w = -14}[/tex]
[tex]\huge\textbf{Therefore, your answer should be:}[/tex]
[tex]\huge\boxed{\frak{\mathsf w = 4\ or \ \mathsf w = -14}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
what is the result of 6 divided by 15
Answer:
If you have 6 chocolate and you have to divide that into 15 people than the answer will be 2 upon 5 or 0.4 for each.
A building meets the ground at a right angle. the top of a 10-foot ladder is placed against the bottom edge of a window in the building, and the base of the ladder is placed 6 feet from where the building meets the ground.
The bottom edge of the window is 8 inches above the ground, computed using the Pythagoras Theorem.
According to the Pythagoras Theorem, in a right triangle, the square of the hypotenuse, that is, the side opposite to the right angle is equal to the sum of the square of the legs, that is, the two other sides.
If in a right triangle, c is the hypotenuse, and a and b are the two legs, then by the Pythagoras Theorem, we can write:
a² + b² = c².
In the question, we are informed that a building meets the ground at a right angle. The top of a 10-foot ladder is placed against the bottom edge of a window in the building, and the base of the ladder is placed 6 feet from where the building meets the ground.
We are asked to draw a diagram that represents the situation and find the height of the bottom edge of the window from the ground.
We assume the building to be DB, meeting the ground BC at a right angle. At point C, the ladder meets the ground and meets the bottom edge of the window at point A.
The diagram is attached.
Now, we get a right triangle ABC, right-angled at B.
By Pythagoras' Theorem, we know that:
AB² + BC² = AC²,
or, AB² + 6² = 10²,
or, AB² = 10² - 6² sq. inches,
or, AB² = 100 - 36 sq. inches,
or, AB = √64 inches,
or, AB = 8 inches.
Thus, the bottom edge of the window is 8 inches above the ground, computed using the Pythagoras Theorem.
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The provided question is incomplete. The complete question is:
"A building meets the ground at a right angle. The top of a 10-foot ladder is placed against the bottom edge of a window in the building, and the base of the ladder is placed 6 feet from where the building meets the ground. Draw a diagram that represents this situation. How far up from the ground is the bottom edge of the window?"