Huh? what do you mean
You can make a solar hot-dog cooker by shaping foil-lined cardboard into a parabolic trough and passing a wire through the focus of each end piece. How far from the bottom should the wire be placed?
Answer:
The wire should be placed at a height of 2.25 inches from the bottom
Step-by-step explanation:
With the assumption that the shape of the solar hot-dog cooker is a parabola. we have the equation for the shape given as y = a·x² + b·x + c
Whereby the coordinates of the vertex is taken as (h, k) = (0, 0), we have;
c = 0
∴ y = a·x² + b·x
From the diagram, we have;
When x = 6, y = 4
When x = -6, y = 4
Which gives;
4 = a·(-6)² + b·(-6) = 36·a - 6·b
4 = 36·a - 6·b.........................................(1)
4 = a·(6)² + b·(6) = 36·a + 6·b
4 = 36·a + 6·b........................................(2)
Subtracting equation (1) from equation (2) gives;
4 - 4 = 36·a - 6·b - (36·a + 6·b) = -12·b
0 = -12·b
b = 0
Therefore;
4 = 36·a - 6×0
a = 4/36 = 1/9
The focus = F(h, k + p)
p = 1/(4·a) = 1/(4 × 1/9) = 1/(4/9) = 9/4 in = 2.25 inches
The coordinates of the focus, F = (h, k + p) = (0, 9/4) = (0, 2.25)
Therefore, the wire should pass through the focus and placed at 2.25 inches above the bottom.
The formula to convert temperature measurements from degrees Fahrenheit (F) to degrees Celsius (C) is shown below.
C = 5/9(F - 32)
What is the Celsius equivalent of 90 degrees Fahrenheit? Round the answer to the nearest degree.
A. 16
B. 32
C. 64
D. 88
A school sold brownies and cupcakes at a bake sale. There were 592 total items available for sale. All 286 brownies were sold. Of the cupcakes for sale, 49 did not sell. How many cupcakes did sell at the bake sale? Select the correct equation to solve. A. 592 - 286 - 49 = c B. 592 - 286 + 49 = c C. 592 + 286 - 49 = c
Answer:
A. 592 - 286 - 49 = c
Step-by-step explanation:
A school sold brownies and cupcakes at a bake sale. There were 592 total items available for sale. All 286 brownies were sold. Of the cupcakes for sale, 49 did not sell. How many cupcakes did sell at the bake sale?
Total number = 592
Total number of brownies = 286
The cup cakes for sale = 592 - 286
= 306 cupcakes.
49 of the cupcakes did not sell
The cupcakes that sold = 306 - 49
= 257 cupcakes were sold.
Therefore, the correct equation to solve. A. 592 - 286 - 49 = c
⚠️⚠️ What’s the slope and intercept B ⚠️⚠️
MARKING BRAINLIEST ASAP
Answer:
The slope is 1 and the y-intercept is 3.
Step-by-step explanation:
Write the following number in Scientific Notation.
Explain what you did to get your answer
560,000,000,000,000,000
Answer:
5.6 * 10^17.
Step-by-step explanation:
There are 17 digits after the 5 .
So it's 5.6 * 10^17.
Note that the first number must lie between 1 and 10.
I don't really understand which number we have to write in scientifc notation but I am assuming it is the number 560,000,000,000,000,000.
Ok so, 560,000,000,000,000,000 in scientific notation is 5.6 x 10^17.
This is because if you count the number of spaces behind the decimal point of 5.6 it is equal to 17. So, you would write the answer 5.6 x 10^17.
will give brainliest to whoever answers with steps by step conclusion
Step-by-step explanation:
perimeter of the quadrilateral is 39
area is 64
for ease for I got approximate numbers.
What do these (>, ≥, <, ≤) mean
Answer:
Less Than,Less Than or Equal to,Greater Than,Greater Than or Equal to
Step-by-step explanation:
The line under plays the role of an equal sign and the others are pretty self explanatory
Answer: The first one is a greater sign, the second one is greater than or equal to, the third one is less than, and the last one is less than or equal to.
Step-by-step explanation: hope this helps
helpp me plzz i really need helppp
thanks!!!!!
Answer:
-14
Step-by-step explanation:
Point P is the incenter of ΔRST. Point P is the incenter of triangle R S T. Lines are drawn from each point of the triangle to point P. Lines are drawn from point P to the sides of the triangle to form right angles and line segments P A, P B, and P C. The triangle has different angle measures. Which must be true? Line segment C P is-congruent-to line segment R P Line segment B P is-congruent-to line segment P C AnglePSC Is-congruent-to AnglePTC AngleBPS Is-congruent-to AngleAPT
Answer:
Step-by-step explanation:
The answer is the second one. Line segment B P is congruent to line segment P C
Answer:
The correct answer is B.
Step-by-step explanation:
Correct on edge 2020
A fish was swimming 3 in a half feet below the water surface at 7:00 a.M. Four hours later, the fish as at a depth that is 5 one fourth feet below where it was at 7:00 a.M. What rational number represents the position of the fish with respectto water surface at 11:00 a.M
Answer:
8 3/4 below sea level
Step-by-step explanation:
Given that:
Depth of fish at 7:00 A. M = 3 1/2 feets below sea level
Depth at 11:00a.m (4 hours later) = 5 1/4 feets below it's position at 7:00 a. M
Rational number to represent position of fish with respect to the water surface at 11:00 a. M
Position at 11:00 a. M :
Addition of the two depth distances given :
(3 1/2 + 5 1/4)
7/2 + 21/4 = (14 + 21) / 4 = 35 / 4
35/4 = 8 3/4 feets below sea level
Answer:
8.75, 8 3/4 or 35/4
Step-by-step explanation:
3 1/2 + 5 1/4
=(3+5) + (1/2 + 1/4)
=8 + (2/4 + 1/4)
=8 + 3/4= 8 3/4
=8 3/4= 35/4
Evaluate the expression
Answer:
1
Step-by-step explanation:
2+4=6
3*2=6
6/6=1
What is the answer for this question please
Answer:
74
Step-by-step explanation:
92-18=74
Answer: Barry has 92 so 92 - 18 = Heidi. Heidi has 74
Step-by-step explanation:
Does this mean -5 over 3
or -3 over 5??? Or what does that mean??? PLEASE HELP
Answer:
That’s -5 over 3 ! :)
Step-by-step explanation:
The -5 is above/over the 3
3 over -5 would look like 3/-5 and the picture you are showing has -5/3.
Six cousins inherited a total of StartFraction 5 Over 8 EndFraction of their great aunt’s assets, which they divided evenly. What fraction of their great aunt’s assets did each cousin inherit?
Answer:
For us to determine the answer to this item, we simply have to divide the given fraction of the great aunt’s property that is to be divided among the cousins by 6.
N = 5/8 / 6
The value of N in the equation is 5/48 or 0.104. Thus, each of the cousins will receive 10% of the great aunt’s property.
Answer:
5/48
Step-by-step explanation:
(5/8) / 6
PLEASE HELP I WILL MARK YOU BRAINLIEST
Answer:
okay so I believe the answer is 30
step-by-step explanation:
So the area is length times width and a parallelogram is Bh so all you would have to do is multiply 10 by 30
I will give brainliest!!!!!
The school cafeteria is packing picnic baskets for a field trip. To be fair, each basket must have equal numbers of cookies and strawberries for dessert. What is the greatest number of baskets that can be packed with 96 cookies and 88 strawberries?
44
16
32
8
Answer:
44 because it goes into both of the numbers twice without going over
Step-by-step explanation:
Hope this helps and i am 100% sure it is correct if you are having doubts. Brainliest please
In city A, the temperature rises 9° from 8 am to 9 am. Then the temperature drops 8° from 9 am to 10 am. In city B, the temperature drops 5° from 8 am to 9 am. Then the temperature drops 4° from 9 am to 10 am.
a. What expression represents the change in city A?
b.What integer represents the change in temperature for city A?
c.What expression represents the change in city B?
d.What integer represents the change in temperature for city B?
e.Which city has the greater change in temperature from 8 am to 10 am?
which of the following is the quotient of the rational expressions shown below
Answer:
Step-by-step explanation:
into the value of 5/6 + (-4/9)-(-2)
the answer to this is 2.38
If you were asked to find the total number of tiles covering a circular floor, would you look to find the area or circumference?
Answer:
The area.
Step-by-step explanation:
The circumference would only cover an outline of the floor. Hope this helps!
35 is what percent of 35
Answer:
100% 35/35 is 1 so 100%
Step-by-step explanation:
100% sure this is right gimme brainliest
Which expression is NOT equivalent to a^3b^3
((a^2)b)((b^2)a)
(a^4)b^4−ab
((a^2b^2))/2ab
(ab)(ba)(ab)
Answer:
A. ((a^2)b)((b^2)a)
Step-by-step explanation:
A. ((a^2)b) ((b^2)a)
Open parenthesis
(a^2b)(b^2a)
a^3b^3
B. (a^4)b^4−ab
a^4b^4 - ab
C. ((a^2b^2))/2ab
(a^2b^2) / 2ab
D. (ab)(ba) (ab)
(a^2b^2)(ba)
Therefore,
a^3b^3 = ((a^2)b) ((b^2)a)
The slope of the line whose equation is 3 x - 2 y = 4 is:
A. 2/3
B. -2
C. 3/2
Answer:
c 3/2
Step-by-step explanation:
¿seria seguro enviar a un helicóptero a la cima de una montaña para llevar a cabo un rescate por aire? un grupo de senderistas se queda atrapado en la cima de una montaña. equipo de búsqueda y rescate sugiere ge se necesitará un trasporte aéreo en helicóptero pa rescatarles. el helicóptero disponible para el rescate puede volar con seguridad a una altura de 5.200 metros sobre el nivel del mar. desafortunadamente, se trata de una montaña inexplorada y no disponen de datos confiables acerca de la altura de la cumbre
la unica informacion que tienes es la siguiente :
un senderista tardó 6,5 horas en dar la vuelta alrededor de la base de la montaña y estimo que recorrió una distancia de 26 kilómetros aproximadamente
los senderistas atrapados se mantuvieron en contacto con el campamento base por radio y , aunque recorrieron mas de 32 kilómetros, estimaron que la distancia en línea recta hasta la cima de la montaña es de unos 6 kilómetros
Answer:
Is this question in Spanish
The product Of (x-1) And A Rational Expression Is 1. Find The Rational Expression
Answer:
[tex]\frac{1}{x-1}[/tex]
Step-by-step explanation:
(x - 1) × [tex]\frac{1}{x-1}[/tex] ( cancel the factor (x - 1) on numerator and denominator
= 1
[ In the same way 2 × [tex]\frac{1}{2}[/tex] = 1 ]
The required rational expression is [tex]\frac{1}{x-1}[/tex]
Evander’s dad bought a box of 8 fruit bars for $2.10. What is the price of two fruit bars? Explain your mathematical thinking.
Answer:
0.35
Step-by-step explanation:
Write the equation or inequality and solve it.
Enrique’s company pays Salim to advertise on Salim’s website. Salim’s website earns #15 per month plus $0.05 every time a visitor clicks on the advertisement. What is the least number of clicks per month that Salim needs in order to earn $50 per month?
Write an inequality to describe this situation.
Solve the inequality and interpret the solution.
IF YOU DONT KNOW PLZ DONT ANSWER
Answer:
2000
Step-by-step explanation:
Salim will need to get 2000 clicks in order to get $50 per month or more.
First: 5 cents goes into one dollar 20 times.
Second: You multiply 20 times 50. This is how you get 2000. There is your answer.
Pls Mark Brainliest
Hi madinashakari91 how are you?
I still think you're pretty
how do you Factor in algebra 2?
for example:
r^2-r-20
and
x^2+8x+12
(r-5)(r+4)
(x+6)(x+2)
Step-by-step explanation:
1 r^2 - 1 r - 20
multiply the first and third terms
-20 times 1 equals -20. take the -1
*what are two numbers that multiply together that equals -20 but add to equal -1?
-5 times 4 equals -20
-5 plus 4 equals -1
(r-5)(r+4)
1 x^2 + 8 x + 12
multiply the first and third terms
12 times 1 equals 12. take the 8
*what are two numbers that multiply together that equals 12 but add to equal 8?
6 times 2 equals 12
6 plus 2 equals 8
=(x+6)(x+2)
if x equals 3 cubed what does this problem equal 2x= If x = 33:
2x = ?
Answer:
2x = 54
Step-by-step explanation:
The given information;
x = 3^3
solve
x = 27
(beacuse 3^3 = 3 * 3 * 3 = 27
find 2x:
2x = 2 * x
x= 27
2 * 27 = 54
2x = 54
simplify the fraction 15/45
Answer:
1/3 or .3333333.....
Step-by-step explanation:
Answer:
1/3
Step-by-step explanation:
you can divide both the numerator and the denominator by 5
15/5=3
45/5=9
then divide by 3 to both sides
hope this helps :3
if it did pls mark brainliest