Answers
The 1st, 3rd, and 5th selections are appropriate.
Related Questions
Each interior angle of a regular hexagon is 4x+24°. What is x?
Answers
.. 4x +24° = 120°
.. 4x = 96° . . . . . . . subtract 24°
.. x = 24° . . . . . . . . divide by 4
I need help checking my work. MEDALS!!! will be awarded. I chose C.
Kidneys process nitrogenous wastes by
A) seperating water from nitrogenous wastes by passive diffusion.
B) using cells to actively pump water across a membrane.
C) storing the wastes as uric acid until they can be eliminated.
D) pumping ions across membranes to separate water from waste products.
Answers
Solve this problem. Find the number of gallons of paint needed to cover all four sides four sides) of the building shown with two coats of paint if one gallon covers 350 square feet. Disregard windows and doors. Round to the nearest gallon.
Answers
1) calculate the area all four sides
A=[12+9+12+9]*8=336 ft²
if 1 gallons---------------------------- > covers 350 ft²
X------------------------------------ > 336 ft²
X=336/350=0.96 gallons
but remember
that there are two coats of paint
therefore
0.96*2----------- > 1.92------- > 2 gallons
the answer is 2 gallons
Answer: the answer is 3 gallons of paint is required to paint the building.
Step-by-step explanation:
The area to be painted is:
= 2× [Area of Rectangle with dimensions 20 ft.×10 ft.+Area of triangle with height 5 ft. and base 20 ft.+Area of rectangle with dimensions 24 ft. and 10 ft.]
=2×[20×10+(1/2)×5×20+24×10]
=2×[200+50+240]
=2×490
=980 square ft.
Hence, the area to be painted=980 square feet.
Now, amount of paint require to cover 350 square feet=1 gallon.
i.e. 1 square feet requires=1/350 gallon of paint.
⇒ 980 square feet requires=980/350=2.8 gallons of paint.
Hence, to the nearest gallon we could say that:
3 gallons of paint is required to paint the building.
Match the reasons with the statements in the proof.
Given: c | | d, m 4 = m 5
Prove: m 7 = m 8
1. c||d, m∠4=m∠5
Substitution
2. m∠4 = m∠7
Vertical angles are equal.
3. m∠5 = m∠8
If lines ||, alternate interior angles are equal.
4. m∠7 = m∠8
Given
Answers
Prove: m 7 = m 8
1. c||d, m∠4=m∠5
GIVEN
2. m∠4 = m∠7
If lines ||, alternate interior angles are equal.
3. m∠5 = m∠8
Vertical angles are equal.
4. m∠7 = m∠8
Substitution
Answer:
Step-by-step explanation:
Given: c is parallel to d and ∠4=∠5.
To prove: ∠7=∠8
Proof:
Statement Reason
1. c║d, ∠4=∠5 Given
2.∠4=∠7 If lines ||, alternate interior angles are equal.
3.∠5=∠8 Vertical angles are equal
Since, ∠4=∠5, therefore ∠7=∠8
4.∠7=∠8 Substitution
A standard number cube is rolled two times. What is the probability that the sum of the two rolls is 13?
Answers
12. triangle KMP is isosceles with KM = KP. MX and PY are angle bisectors.
a. Is there enough information to prove triangle WMP is an isosceles
triangle? Explain.
b. Can you conclude that MX and PY are medians?
c. What one additional piece of information would allow you to prove
that MX and PY are altitudes?
triangle below
Answers
B: Yes, because the angle bisectors of MX and MP would also bisect the sides making them both medians.
C to prove that they were Altitudes we would need to know that the base angles of KMP are 60 degrees. if they are 60 degrees they would create two 30-60-90 triangles with the 90 degrees going from the center of the side directly up, perpendicularly to the altitude. (this would also make the triangle an equilateral triangle)
f(x) = x4 − 4x3 − 4x2 + 36x − 45. This function has roots
Answers
x=3 is root of this function
Answer:
the answer is 4 not three
helppppppppppppppppppp
Answers
y = (x + 2) ^ 3
y = x ^ 2 + 3
Then, we see the behavior of the functions:
blue: y = (x + 2) ^ 3
red: y = x ^ 2 + 3
answer:
2 units rigth and 3 units up
(option 3)
See attached graph.
5.1x10^-1 as an ordinary number?
Answers
so its 5.1 * 0.1 = 0.51 Answer
Convert [tex]\( 5.1 \times 10^{-1} \)[/tex] to an ordinary number, the, [tex]\( 5.1 \times 10^{-1} \)[/tex] as an ordinary number is 0.51.
To convert [tex]\( 5.1 \times 10^{-1} \)[/tex] to an ordinary number:
1. Identify the exponent: The exponent is -1.
2. Understand the meaning: [tex]\( 10^{-1} \)[/tex] means "divide by 10".
3. Apply the operation: Divide 5.1 by 10.
4. Move the decimal point: To divide by 10, shift the decimal point in 5.1 one place to the left.
5. Result: Moving the decimal point one place to the left changes 5.1 to 0.51.
Thus, [tex]\( 5.1 \times 10^{-1} = 0.51 \)[/tex].
Complete question:- What is [tex]5.1 * 10^{- 1[/tex] as an ordinary number?
The graph of y = 12x2 will be more narrow than the graph of the parent function, y = x².
Question 2 options:
True
False
The quadratic function shown can be written in the form y = ax². Determine the equation of the quadratic function.
Question 4 options:
y = x²
y = -x²
y = 2x²
y = -2x²
Answers
Based on the graph attached, we know a will not be a negative number, since the graph is open upward instead of downward. A negative coefficient "flips" the graph. Since it goes through the point (1, 2) it will not be the parent function y = x²; if you substitute 1 in for x you would get a value of 1, not 2. Therefore the choice must be y = 2x².
What is the hypothesis in the following conditional statement? "If it is a Friday then Josie will receive her paycheck." A. It is a Friday. B. It is not a Friday. C. Josie will receive her paycheck. D. Josie will not receive her paycheck.
Answers
Answer:
C. Josie will receive her paycheck.
Step-by-step explanation:
The hypothesis is that Josie will have her paycheck.
The conditional thing of that hypothesis is that she needs to wait until Friday and then, she can have her paycheck.
You can see this because the main here is to get the paycheck.
And the thing that can change, without changing the main hypothesis, is the day she will receive that check.
Convert 302 inches to yards
Answers
Hope this helps!
302inches/36 inches=8 yards 14 inches or
About 8.38 yards
factor this polynomial 3y-6x+4xy-2y^2
Answers
= 4xy -6x -2y^2 +3y
= 2x(2y -3) -y(2y -3)
= (2x -y)(2y -3)
= 4xy - 2y^2 - 6x + 3y
= (4xy - 2y^2) - (6x - 3y)
= 2y(2x - y) - 3(2x - y)
= (2x - y)(2y - 3)
A line has a slope of 0 and passes through the point
(7, 7). What is its equation in slope-intercept
form?
Answers
The equation of a line in slope-intercept form is [tex] y=mx+c [/tex].
Where [tex] m [/tex] is slope and [tex] c [/tex] is y-intercept.
Since [tex] m=0 [/tex], the equation of the line is [tex] y=(0)x+c\\ y=c [/tex].
Since this line passes through [tex] (7,7) [/tex]. The equation of the line is
[tex] y=7 [/tex]
The equation of a line in slope-intercept form is y=mx+c .
Where m is slope and c is y-intercept.
Since m=0 , the equation of the line is y=(0)x+c\\ y=c .
Since this line passes through (7,7) . The equation of the line is
y=7
The volume of right circular cylinder a is 22 cubic centimeters. what is the volume, in cubic centimeters with twice the radius and half the height?
Answers
[volume of right circular cylinder]=pi*r²*h
Vo=pi*r²*h--------------> original volume
Vo= 22 cm³
if twice the radius and half the height
r1=2*r
h1=h/2
then
V1=pi*ri²*h1
substituting
V1=pi*(2*r)² *(h/2)----------->V1= pi*4*r² *h/2-----------> V1=2*pi*r² *h
V1=2*[pi*r² *h]------------> V1=2Vo
V1=2*22=44 cm³
the answer is 44 cm³
To find the volume of the new cylinder with twice the radius and half the height, use the formula for the volume of a cylinder and substitute the new values. The volume of the new cylinder is also 22 cubic centimeters.
Explanation:To find the volume of the new cylinder with twice the radius and half the height, we can use the formula for the volume of a cylinder: V = πr2h.
First, we double the radius of the original cylinder. Let's say the original radius is r. The new radius would be 2r.
Next, we halve the height of the original cylinder. Let's say the original height is h. The new height would be h/2.
Substituting these values into the volume formula, we get the volume of the new cylinder as V = π(2r)2(h/2)=4πr2(h/2)=2πr2h.
So, the volume of the new cylinder is also 22 cubic centimeters.
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A parking lot space is in the shape of a rectangle. If the space has a length of 23 feet and a width of 12 feet, what is the area of the parking space?
Answers
A=23*12
A=276 <the answer
Given is a parking space in the shape of rectangle with length = 23 feet and width = 12 feet. It says to find the area of parking lot.
We know the formula for area of rectangle is given by :-
Area = Length x Width
We can plug the given values in the above formula and find the answer.
Area = 23 feet x 12 feet
Area = 276 squared feets
So the area of parking space would be 276 squared feets.
Hence, final answer is 276 squared feets.
What is the cosecant of angle y?
Answers
The cosecant of angle y is z/y.
What is Trigonometry?The area of mathematics that deals with particular angles' functions and how to use those functions in calculations. There are six popular trigonometric functions for an angle. Sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant are their respective names and acronyms (csc).
Given:
Hypotenuse = z
Perpendicular = y
Base = x
As, Cosecant is the ratio of Hypotenuse to perpendicular
Using Trigonometry
cos y = H/ P
cos y = z/ y
Hence, the cosecant of y is z/y.
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6. The cost C of joining FitFast Gym includes an initial membership fee of $127, plus a monthly
fee, m, of $28.
a. The cost of going to the gym is a function of the number of months of membership. Find a
rule for the function.
b. Find the cost of using the gym for 9 months
Answers
The cost of gym membership for 9 months then would be f(9)=127+28(9)=127+252=$379.
Answer:
Step-by-step explanation:
The function rule would be f(m)=127+28m. This is because the membership fee, $127, is added to the monthly cost, which is given by 28×m, the number of months.
The cost of gym membership for 9 months then would be f(9)=127+28(9)=127+252=$379.
In July 2010 there were approximately 500 million Facebook users. In July 2011 there were approximately 750 million Facebook users. How many more users were there in 2011. Write your answer in scientific notation
Answers
Which of the following best describes an unpredictable event
A. The outfit a person will wear on a particular day 3 years from now
B. The moment a car runs out of gasoline
C. The grade a student gets in a class on a final report card
D. The amount of money in a savings account
Answers
Which of the following is a radical equation?
Answers
Answer:
D) [tex]7\sqrt{x} = 14[/tex]
Step-by-step explanation:
If x is under a radical symbol, then it is called radical equation.
For example, [tex]\sqrt{x} = 2[/tex]
[tex]\sqrt{x-2} = 5[/tex]
From the given equations, we have to find in which equation x under radical.
x + [tex]\sqrt{5} = 12[/tex], here x is not under radical.
[tex]x^{2} = 16[/tex], here also x is not under radical.
3 + x√7 =13, here x is not under radical
7[tex]\sqrt{x} = 14[/tex]
Here x is under the radical symbol.
Therefore, the answer is [tex]7\sqrt{x} = 14[/tex]
What is the vertex form of y=-2x^2-8x+10? Give the coordinates of the vertex, state if there is a minimum or maximum, and find the equation of the line of symmetry.
This is for Algebra 2 regular.
Answers
notice the leading term's coefficient, is -2, is negative, that means the parabola is opening downwards, is facing down, so it goes up up up, reaches the U-turn and then down down down, is a "hump" or a maximum point.
[tex]\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ \begin{array}{lcccl} y = & -2x^2& -8x& +10\\ &\uparrow &\uparrow &\uparrow \\ &a&b&c \end{array} \qquad \left(-\cfrac{ b}{2 a}\quad ,\quad c-\cfrac{ b^2}{4 a}\right) \\\\\\ \left( -\cfrac{-8}{2(-2)}~~,~~10-\cfrac{(-8)^2}{4(-2)} \right)\implies \left( \cfrac{8}{-4}~~,~~10-\cfrac{64}{-8} \right) \\\\\\ \left( -2~~,~~10+8 \right)\implies (-2~~,~~18)[/tex]
and the line of symmetry, well is a vertical parabola, mirroring itself at the line x = -2, which is the x-coordinate of the vertex.
Jerry solved the system of equations.
X-3y= 1
7x+2y=7 As the first step, he decided to solve for y in the second equation because it had the smallest number as a coefficient. Max told him that there was a more efficient way. What reason can Max give for his statement?
Answers
Answer:
A: The variable x in the first equation has a coefficient of one so there will be fewer steps to the solution.
Step-by-step explanation:
I got it right on Edge
The value of x and y is 1 and 0 for the given system of equations.
And, the reason Max gives for his statement that " the variable x in the first equation has coefficient of one so there will be fewer steps to the solution".
What is system of equations?A system of equations is a set of two or more equations with the same variables. A solution to a system of equations is a set of values for the variable that satisfy all the equations simultaneously.
What is substitution method?The substitution method can be defined as a way to solve a linear system algebraically. In this method we substitute one y-value with the other. To put it simply, the method involves finding the value of the x-variable in terms of the y-variable.
According to the given question.
We have system of equations.
x - 3y = 1
and 7x + 2y = 7
To solve the above system of equations we use substitution method.
Since, the first the corffeficient of x in first equation is 1. So we will use the value of x of equation x -3y = 1 to substitute in second equation. Because it require fewer steps to get the solution.
So,
From x - 3y = 1
We cay say that
x = 1 + 3y
Substitute the value of x in 7x + 2y = 7.
⇒ 7(1 + 3y) + 2y = 7
⇒ 7 + 21y +2y = 7
⇒ 7 + 23y = 7
⇒ 23y = 7-7
⇒ 23y = 0
⇒ y = 0
Again susbstitute the value of y in x =1 + 3y.
⇒ x = 1 + 3(0)
⇒ x = 1
Hence, the value of x and y is 1 and 0 for the given system of equations.
Therefore, the reason Max gives for his statement that " the variable x in the first equation has coefficient of one so there will be fewer steps to the solution".
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Paul has a coupon for $2.50 off a box of name brand cereal that normally costs $12.78 the store brand cereal costs $10.98 how much will Paul save if he uses his coupon and buys the name brand cereal instead of the store brand cerial
Answers
1.Name brand cereal: $12.78 and Store brand cereal: $10.98.
2. Coupon for $2.50 off on the name brand.
What the question is asking is how much would he save if he used the coupon. So you would need to know how much it will be after the coupon is used. Here is the following steps to this question:
Step1 find out the price after coupon:
Regular price 12.78－Coupon worth 2.50 = 10.28
Now after knowing the price after coupon we need to find how much she saved
Step2 finding how much Pual saved after using to coupon and buy the named brand
Store brand price 10.98 －The price after discount 10.28 = $0.70
So Pual saved $0.70 by using the coupon and buying the named brand cereal.
Hope it helps!
Find the reduced odds for and the reduced odds against the event of rolling a fair die and getting a 2, 4, or 5 odds for: to odds against: to
Answers
There are 3 ways of getting a 2, 4, or 5. There are also 3 ways of NOT getting a 2, 4, 5 (namely rolling a 1, 3, or 6). That means the odds FOR would be 3:3 = 1:1.
There are 3 ways of NOT getting a 2, 4, or 5 (again rolling a 1, 3, or 6). There are also 3 ways of getting a 2, 4, 5. That means the odds AGAINST would be 3:3 = 1:1.
Reduced odds for rolling a 2, 4, or 5: 1:1
Reduced odds against rolling a 2, 4, or 5: 1:1
To determine the reduced odds for and against rolling a 2, 4, or 5 on a fair six-sided die, we need to calculate the probabilities of these events.
Step 1: Calculate the probability of rolling a 2, 4, or 5.
There are three favorable outcomes (rolling a 2, 4, or 5) out of a total of six possible outcomes.
[tex]\[ P(\text{rolling a 2, 4, or 5}) = \frac{3}{6} = \frac{1}{2} \][/tex]
Step 2: Calculate the probability of not rolling a 2, 4, or 5.
There are three unfavorable outcomes (rolling a 1, 3, or 6) out of a total of six possible outcomes.
[tex]\[ P(\text{not rolling a 2, 4, or 5}) = \frac{3}{6} = \frac{1}{2} \][/tex]
Step 3: Calculate the odds for rolling a 2, 4, or 5.
Odds for an event are given by the ratio of the number of favorable outcomes to the number of unfavorable outcomes.
[tex]\[ \text{Odds for rolling a 2, 4, or 5} = \frac{\text{Number of favorable outcomes}}{\text{Number of unfavorable outcomes}} = \frac{3}{3} = 1:1 \][/tex]
Step 4: Calculate the odds against rolling a 2, 4, or 5.
Odds against an event are given by the ratio of the number of unfavorable outcomes to the number of favorable outcomes.
[tex]\[ \text{Odds against rolling a 2, 4, or 5} = \frac{\text{Number of unfavorable outcomes}}{\text{Number of favorable outcomes}} = \frac{3}{3} = 1:1 \][/tex]
Therefore, The reduced odds for and the reduced odds against the event of rolling a fair die and getting a 2, 4, or 5
Reduced odds for rolling a 2, 4, or 5: 1:1
Reduced odds against rolling a 2, 4, or 5: 1:1
Amare wants to ride a Ferris wheel that sits four meters above the ground and has a diameter of 50 meters. It takes six minutes to do three revolutions on the Ferris wheel. Complete the function, h(t), which models Amare's height above the ground, in meters, as a function of time, t, in minutes. Assume he enters the ride at the low point when t = 0.
Answers
Final answer:
To model Amare's height above the ground as a function of time, use the equation h(t) = 2 + 2 * sin((2 * pi * t) / 6)
Explanation:
To determine a function to model Amare's height above the ground as a function of time, we can use the equation of motion for circular motion. The height of Amare above the ground can be calculated using the equation:
h(t) = r + R * sin(theta)
Where:
h(t) is the height above the ground at time t
r is the radius of the wheel (half the diameter)
R is the maximum height above the ground (given as 4 meters)
theta is the angle in radians, which is related to time by the formula theta = (2 * pi * t) / T, where T is the time for one revolution (given as 6 minutes)
Putting all these values into the equation, we get:
h(t) = 2 + 2 * sin((2 * pi * t) / 6)
What is the value of x? Enter your answer in the box. x = A triangle with midsegment parallel to the base. the left side is labeled 72 cm below the midsegment and 9 cm above the midsegment. the right side is labeled 56 cm below the midsegment and 3 x minus 20 above the midsegment.
Answers
72/9 = 56/(3x -20)
We can multiply by (3x -20)/8 to get
3x -20 = 7
3x = 27
x = 9
72/9 = 56/(3x -20)
We can multiply by (3x -20)/8 to get
3x -20 = 7
3x = 27
x = 9
An isosceles triangle with angles measuring 50°, 50°, and 80° undergoes a translation, rotation, and reflection.
Determine whether the angle measures of the image of the triangle are 50°, 50°, and 80° after each transformation.
Select Yes or No for each transformation.
{Translation}
Yes?
or
No?
{Rotation]
Yes?
or
No?
{Reflection}
Yes?
or
No?
Answers
Translation will be the similar as that of the pre image, that means they will retain the same value of 50, 50 and 80.
The answer is yes.
Rotation will be similar to that of the preimage. This is because rotation of the figure will only affect the position of the original figure and not the size of the figure. Therefore the size of the angles will be 50, 50 and 80.
Reflection will be the same as that of the preimage, reason being the reflected figure always has the same size as the object and it is always same distance as the preimage is in front of the mirror.
For the isosceles triangle undergoing transformations, the angle measures will change for translation but remain the same for rotation and reflection.
No for Translation because translations do not change angle measures.
Yes for Rotation because rotations preserve angle measures.
Yes for Reflection because reflections preserve angle measures.
Which best describes what is happening in section C? His car is stopped. His car is speeding up. His car is slowing down. His car is traveling at a constant speed.
Answers
The best describes what is happening in section C is His car is slowing down.
What is graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points. A graph consists of some points and lines between them.
As, from the speed versus time graph we can see that section C occurs in between section B and D.
In section B,
line is horizontal which means the car is at constant high speed.
In section D,
line is also horizontal which means the car is at a constant low speed.
In section C,
the line goes down to the right which shows that from section B to D there is decrease in speed of car. So, in section C the car in movement of slowed down.
Hence, in section C is car is slowing down.
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solve the following system of equations: -2x+y=1
-4x+y=-1
A)(3,1)
B)(-1,3)
C)(-1,-3)
D)(1,3)
Answers
.. (-2x +y) -(-4x +y) = (1) -(-1)
.. 2x = 2 . . . . . . . . . . . . . . . . . . . simplify
.. x = 1 . . . . . . . . . . . . . . . . . . . . . divide by 2
This corresponds to selection D) (1, 3).