Answer:
StPart 1) The expression is
Part 2) The area of the schoolyard when x=40 m is A=2,800 m^2
Part 3) The domain is all real numbers greater than zero and less than 75 meters
Step-by-step explanation:
Part 1) Write an expression for A(x)
Let
x -----> the length of the rectangular schoolyard
y ---> the width of the rectangular schoolyard
we know that
The perimeter of the fencing (using the wall of the school for one side) is
so
-----> equation A
The area of the rectangular schoolyard is
---> equation B
substitute equation A in equation B
Convert to function notation
Part 2) What is the area of the schoolyard when x=40?
For x=40 m
substitute in the expression of Part 1) and solve for A
Part 3) What is a reasonable domain for A(x) in this context
we know that
A represent the area of the rectangular schoolyard
x represent the length of of the rectangular schoolyard
we have
This is a vertical parabola open downward
The vertex is a maximum
The x-coordinate of the vertex represent the length for the maximum area
The y-coordinate of the vertex represent the maximum area
The vertex is the point (37.5, 2812.5)
using a graphing tool, see the attached figure
therefore
The maximum area is 2,812.5 m^2
The x-intercepts are x=0 m and x=75 m
The domain for A is the interval -----> (0, 75)
All real numbers greater than zero and less than 75 meters
ep-by-step explanation:
What is the y-intercept of the line shown below? Enter your answer as a coordinate pair.
Answer:
The x intercept is (-2,0)
the y intercept is (0,4)
Please no links will mark brainiest for compleat answer.
question is in pic below
Answer:
[tex]16x^{10}[/tex]
Step-by-step explanation:
Area of a square = [tex]s^{2}[/tex]
[tex]s=4x^{5}[/tex]
[tex]s^{2} =(4x^{5} )^{2}[/tex]
[tex]s^{2} =16x^{10}[/tex]
please help me someone
express 23/15-7/10 as a percentage
Answer:
83.3%
Step-by-step explanation:
1/5d=-3 help I'm confused
Answer:
d=-15
Step-by-step explanation:
1/5d= -3
d= -3×5
d= -15
Hope this helps you. Have a nice day. Please mark as brainliest. It helps a lot. ^_^
It costs 4.99 for 2lbs of bacon and 6.99 for 5lbs of bacon.which is a better buy?
Answer:
The 5lbs is a better buy
Step-by-step explanation:
Find the price per pound:
4.99/2= $2.49
6.99/5= $1.39
What can divided 62 and 30
A group of students left school at 8:00 am on a field trip to a science museum 90 miles away. Which best the average speed of the bus if they arrived at 10:00
Answer:
45 mph
Step-by-step explanation:
90 / 2 = 45 mph
Can someone pls help me out
___________
[tex] \: [/tex]
[tex]\boxed{ \rm{answer \: by \: { \boxed{ \rm{☆HayabusaBrainly}}}}}[/tex]
This is Question no picture, soo iam work in question before^^
Step by step :x² = 12² + 10²
x² = 144 + 100
x² = 244
x = 15,6m✔
Distribute: -6(3x – 4) a-18x + 10 b-18x + 24 c-18x - 4 c-18x - 24
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\text{The DISTRIBUTIVE PROPERTY formula is}\downarrow\\\large\textsf{a(b + c)}\\\large\textsf{= a(b) + a(c)}\\\large\textsf{= ab + ac}[/tex]
[tex]\large\text{Now that we have the formula, we can solve for your question/answer.}[/tex]
[tex]\large\text{YOUR EQUATION: \underline{\underline{\textsf{-6(3x - 4)}}}}}\\\\\large\textsf{= -6(3x) - 6(-4)}\\\large\textsf{= -6(3x) + 6(4)}\\\large\textsf{= -18x + 24}\\\huge\boxed{\rm{Therefore, your\ answer\ is: \mathsf{-18x + 24}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Write the equation of the line in slope-intercept form that passes through the given points.
(-1, 8) and (5,-2)
Answer:
y = -5/3x + 19/3
Step-by-step explanation:
y2 - y1 / x2 - x1
-2 - 8 / 5 - (-1)
-10/6
= -5/3
y = -5/3x + b
8 = -5/3(-1) + b
8 = 5/3 + b
19/3
Mr. Reyes broke his bicycle. He asked Renato to fix it. Renato charged 350 php for the
new parts of the bicycle and 150 php per hour for labor to repair the bicycle. If Renato
spent 4 hours repairing Mr. Reyes’ bike, what is the total amount he needs to pay?
a. What is asked?
b. What are the given numbers?
c. What are the operations needed?
d. Write the number sentence.
e. Solve. Show your solution.
Answer:
950 phpStep-by-step explanation:
a. What is asked?
Find the total amount for repair of the bike.b. What are the given numbers?
350 php for parts and 150 php per hour for labor. Total 4 hours repair duration.c. What are the operations needed?
Multiplication and additiond. Write the number sentence.
Find the labor charge by multiplying the rate by the number of hours and add to the cost of parts.e. Solve. Show your solution.
350 + 150*4 = 350 + 600= 950 phpHelp me pls and thx and have a nice day
Answer: the answer should be the last one
Step-by-step explanation:
Caroline wears a suit to work everyday. Caroline has 6 suits, 3 overcoats, and 4 pairs of shoes. How many different outfits can Caroline create? *
80°
50°
Зc +2°
C=.
Can i get a step by step or a video on this?
Answer:
C= 19.333333(Its infinite)
20 < 5 (F – 32) < -15
solve the compound inequalities
Answer:
no solution
Step-by-step explanation:
20 < 5(F - 32) < -15
-15 can never be greater than 20, thus the answer is no solution
There are 35 boys in 6th grade. The number of girls in 6th grade is 40. Emma says that means the ratio of the number of boys in 6th grade to the number of girls in 6th grade is 3:4. Is Emma correct? If not, what is the correct answer?theses are the answers you chose froma: correct ratiob:7:8c: 5;8d: 8:7
Answer:
No, Emma is not correct.
Step-by-step explanation:
because if we put 35 and 42 in rational form we can write it to its simple form by dividing it
35 / 7 = 5
42 / 7 = 6
after dividing we get the answer as 5:6.
Hope it helps ☺️
A number that multiplies a variable in a term is a_____.
A. factor
B. coefficient
C. term
D. variable
Answer:
coefficient
Step-by-step explanation:
Answer: Answer:
Step-by-step explanation:
please answer, it’s a test
Answer:
A
Step-by-step explanation:
The inverse of 2x would be 1/2 x and the inverse of +6 would be -6.
Snow is falling steadily in Syracuse, New York. After 2 hours, 4 inches of snow has fallen.
If it continues to snow at the same rate, how many inches of snow would you expect after 6.5 hours? If you get stuck, you can use the table to help. what is this????????? Write an equation that gives the amount of snow that has fallen after x hours at this rate.
Complete the equation below
y = _______________
Use x as your variable.
Answer:
I think y = 13 inches of snow
8+7+5+7+9
Mathematics middle school
Answer:
36
Step-by-step explanation:
hope this helps
8+7+5+7+9
15+5+7+9
20+7+9
27+9
36
= 8+7+5+7+9
= 15+5+7+9
= 20+7+9
= 27+9
= 36
The answer is 36.Can someone help me with 8-grade math homework, please
Answer:
so y=7.25x+9.99 where y is the total money they spend, and the x is the total number of they want to bought jersey which is 20,
So here it's equation:
y=7.25(20)+9.99
y= 145+9.99
y=154.99, therefore the total is 154.99
and the second one is find and explain the mistake
the y values is the mistake when you equate the number of x to the equation given so the true answer of that table if you use the equation is:
X Y
2 0
3 -2
4 -4
5 -6
factor [tex]x^{2} + 2x[/tex]
Answer:
the answer is x(x+2)
HELPPPP PLEASEEEE!!!!
Answer:
B
Step-by-step explanation:
what the slope of a line
Answer:
The slope of a line is a number that measures its "steepness", usually denoted by the letter m. It is the change in y for a unit change in x along the line.
Hope it helps.
Someone please help me! Will mark brainliest!
Answer:
F
(
x
)
=
−
x
2
−
3
x
+
C
Step-by-step explanation:
5x + 8 + 3x + 4 = -40 +4
Answer:
x=-6
Step-by-step explanation:
Answer:
[tex]x=-6[/tex]
Step-by-step explanation:
[tex]5x+8+3x+4=-40+4[/tex]
⇒ Subtract 4 from both sides:
[tex]5x+8+3x+4-4=-40+4-4[/tex]
[tex]5x+8+3x=-40[/tex]
⇒ Combine like terms:
[tex]5x+3x=8x[/tex]
[tex]8x+8=-40[/tex]
⇒ Subtract 8 from both sides:
[tex]8x+8-8=-40-8[/tex]
[tex]8x=-48[/tex]
⇒ Divide both sides by 8:
[tex]\frac{8x}{8}=\frac{-48}{8}[/tex]
[tex]x=-6[/tex]
________________________
HELP ME ASAP!!!!!!
See pic attached
Step-by-step explanation:
a ) 9 × 2 = 18 → 18 + 3 = 21
o/p = 21
b) 17 - 3 = 14 → 14/2 = 7
i/p = 7
hope this answer helps you dear!
3) if the cost of 1 pen is Rs.10, find the cost of 5 pen
Answer: 5 pens cost Rs.50
Explanation: Since 1 pen costs Rs.10, you will need to multiply the number of pens (1) and the cost of that number of pens (Rs.10) by the amount of pens you must find the cost for (5). Since 10 times 5 is 50, that means that 50 is the cost of 5 pens.
I hope this helps!
Solve for x.
9(x + 1) = 25 + x
x = 2
x = 3
x = 4
x = 5
Answer:
x = 2
Give me the brainlest, please?
Step-by-step explanation:
Answer: x=2
Step-by-step explanation:
9(x+1)=25+x (Distribute the 9)
9x+9=25+x (Work both sides to isolate the variable)
-9 -9
9x=16+x
-x -x
8x=16
/8 /8
x=2