Answer:
34,320 are cars
Step-by-step explanation:
65% of 52,800 is 34,320
Sprinkler heads come in all different sizes depending on the angle of rotation desired. If a sprinkler head rotates 90 ° and has enough pressure to keep a constant 25-foot spray, what is the area of the sector of the lawn that gets watered? Round to the nearest square foot.
Answer:
491 ft²
Step-by-step explanation:
We know the area of a sector, A = Ф/360° × πr² where Ф = angle subtended by sector = angle of rotation of sprinkler = 90° and r = radius of sector = length of spray = 25 feet.
Substituting the values of the variables into the equation, we have
A = Ф/360° × πr²
A = 90°/360° × π(25 ft)²
A = 1/4 × 625π ft²
A = 1/4 × 1963.5 ft²
A = 490.9 ft²
A ≅ 491 ft² to the nearest square foot
The area of a right triangle is 270 square meters. The height of the right triangle is 15 meters. What is the length of the hypotenuse of the right triangle?
Answer:
[tex]\sqrt{549}[/tex] ≈ 23.4
Step-by-step explanation:
A = bh
270 = 15b
b = 18
Now you know the two legs, use the Pythagorean Theorem to find the value of the hypotenuse: a² + b² = c²
15² + 18² = c²
225 + 324 = c²
c² = 549
c = √549
What is the value for the variable?
9⁴ · 9⁻⁶ = 9ᵇ
don't have any more points but I REALLY NEED THIS QUESTION DONE
I believe that the answer is 25.
Answer:
38
Step-by-step explanation:
Because ST is midsegment the half of DG
so' 19×2 = 38BRAINILIEST PLEASE
what is the standard form of the equation y+6=2(x-3)
Answer:
Step-by-step explanation:
Y+6=2x-6
6+6=2x-y
12=2x-y
helpp me hw is so stressing
Answer:
C and D
Step-by-step explanation:
Madison purchased 240 ft of fencing to build a corral for her horses. If each horse requires 600 ft2 of space, what is the maximum number of horses Madison can put in
the corral she builds with the fencing? Explain.
Answer:
6 horses
Step-by-step explanation:
2(x + y) ≤ 240
side lengths with greatest area = x = 120/2 and y = 120/2
60 × 60 = 3600ft²
3600/600 = 6 horses
Please Rate and Mark as Brainliest!
The required maximum number of horses is 7.
Given that,
Madison purchased 240 ft of fencing to build a corral for her horses. If each horse requires 600 ft2 of space, what is the maximum number of horses Madison can put in the corral she builds with the fencing is to be determined.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
Here,
Madison has 240 ft of fencing,
Circumference of corral = 240 ft
2πr = 240
r = 38.2
Now the area of the circular corral,
= πr²
= 4584.33
Now, the number of horses,
= total area of corral/area for each horse
= 4584.33 / 600
= 7.64
≈ 7
Thus, the required maximum number of horses is 7.
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Kelli cut away 3.34 meters of rope before that she had 9 meters of rope how much rope does Kelko has
Answer:
5.66
Step-by-step explanation:
Kelli cut away 3.34 meters of rope before that she had 9 meters of rope how much rope does Kelko has
9 − 3.34
= 5.66
A cone has a height of 20 millimeters and a radius of 8 millimeters. What is its volume?
Use r = 3.14 and round your answer to the nearest hundredth.
Answer:
Step-by-step explanation:
the volume of the cone:
V=3.14*r^2*(h/3)
V=3.14*8*8*(20/3)=200.96*(20/3)=1339.73
Answer:
Step-by-step explanation:
volume of cone =1/3 πr²h=1/3×π×8²×20=1280/3 π mm³
=1280/3×3.14
≈1339.73 mm³
please help. i don't have much time
Answer:
give me brainliest
Step-by-step explanation:
51 divided by 60 times 100 = 85%
Answer:
85%
Step-by-step explanation:
51/60*100 = 85%
Suppose the commute times for employees of a large company follow a
normal distribution. If the mean time is 24 minutes and the standard
deviation is 5 minutes, 95% of the employees will have a travel time within
which range?
A. 9 minutes to 39 minutes
B. 19.25 minutes to 28.75 minutes
C. 14 minutes to 34 minutes
D. 19 minutes to 29 minutes
Answer:
C is the answer.
Step-by-step explanation:
i just got it right so that means you would too> let's goooo!!
The employees will have to travel within 19.25 minutes to 28.75 minutes.
What is Normal Distribution?'Normal distribution is a continuous probability distribution wherein values lie in a symmetrical fashion mostly situated around the mean.'
According to the given problem,
Mean time = 24 minutes
Standard deviation = 5 minutes
Therefore,
⇒24 + 5 = 29
⇒24 - 5 = 19
Now,
(29 - 19) * 95% = 9.5
Hence, we can conclude that 95% of the employees will have to travel within 19.25 minutes to 28.75 minutes.
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what does 10+q equal?
Answer:
Well if no variable substitution is given its 10+q
10+q=10+q
Answer:
10+q is thank you :P
Step-by-step explanation:
hehe
The solution to a system of linear equations (-3,-3) which system of linear equations has this point as its solution?
Answer:
[tex]x - 5y =12[/tex] and [tex]3x + 2y =-15[/tex]
Step-by-step explanation:
Given
See attachment
Required
Which options has the solution: [tex](x,y) = (-3,-3)[/tex]
[tex](a)[/tex] [tex]x - 5y =-12[/tex] and [tex]3x + 2y =-15[/tex]
Substitute [tex]x =-3[/tex] and [tex]y = -3[/tex] in [tex]x - 5y =-12[/tex] and [tex]3x + 2y =-15[/tex]
[tex]x - 5y =-12[/tex]
[tex]-3 - 5*-3 = -12[/tex]
[tex]-3 + 15 = -12[/tex]
[tex]12 \ne -12[/tex]
This is not a solution
[tex](b)[/tex] [tex]x - 5y =-12[/tex] and [tex]3x + 2y =15[/tex]
As shown in (a), (-3,-3) is not true for [tex]x - 5y =-12[/tex]
[tex](c)[/tex] [tex]x - 5y =12[/tex] and [tex]3x + 2y =-15[/tex]
Substitute [tex]x =-3[/tex] and [tex]y = -3[/tex] in [tex]x - 5y =12[/tex] and [tex]3x + 2y =-15[/tex]
[tex]x - 5y =12[/tex]
[tex]-3 - 5(-3) = 12[/tex]
[tex]-3 + 15 = 12[/tex]
[tex]12 = 12[/tex]
[tex]3x + 2y =-15[/tex]
[tex]3(-3) + 2(-3) = -15[/tex]
[tex]-9 - 6 = -15[/tex]
[tex]-15 = -15[/tex]
Hence,
(-3,-3) is true for [tex]x - 5y =12[/tex] and [tex]3x + 2y =-15[/tex]
Answer:
C
Step-by-step explanation:
I took the quiz
Solve 5+h>7. Graph the solution.
The solution of the inequality is h > 2.
The graph of the solution is attached below.
Inequality:The given inequality is,
5 + h > 7
Add and subtract 5 on both side of the equation.
5 + h - 5 > 7 - 5
h > 2.
The graph of the solution is attached below.
Hence, the solution of the inequality is h > 2.
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The solution to the inequality 5 + h > 7 is h > 2. Graphing the solution involves representing the range of values for h that satisfy the inequality.
Here's a step-by-step explanation:
Start with the inequality 5 + h > 7.Subtract 5 from both sides of the inequality to isolate the variable h[tex]h > 7 - 5.[/tex]Simplify the right side of the inequality: [tex]h > 2.[/tex]The inequality h > 2 represents all values of h that are greater than 2. To graph the solution, draw a number line and mark the point 2.Since the inequality is "greater than," place an open circle at 2 to indicate that 2 is not included in the solution.Shade the region to the right of the open circle to represent all the values greater than 2.Label the shaded region with an arrow pointing towards the right to indicate that the values continue indefinitely in that direction.The resulting graph represents the solution to the inequality [tex]h > 2[/tex].In summary, the solution to the inequality 5 + h > 7 is h > 2. Graphing the solution involves marking an open circle at 2 on a number line and shading the region to the right, indicating all values greater than 2.
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a function ,f, is defined by the set {(2,3), (4,7), (-1,5)}. if f is reflected in the line y=x, which point will be in the reflection?
a. (5,-1) b. (-5,1) c. (1,-5) d. (-1,5)
Answer:
the answer is d
Step-by-step explanation:
Find the distance between Riverside and Milton if they are 15 cm apart on a map with a scale of 4 cm: 21 km.
pls answer i will give points
Answer:
66.9375
Step-by-step explanation:
from what you told me 4cm=21km
if you divide 21 by four, you get how many km is one cm. which is 5.25km
15 divided by 4 = 3.75
what we know is that 4 can go into 15 three whole times. so.. 21x3=63
now what we need to figure out is that .75
so, 75 is three quarters, so i divided 5.25 divided by 4 to get how much one quarter of a cm is in km. then i multipled that by three, giving me: 3.9375
63+3.9375= 66.9375
but you might have to round this i dont know if you do or not so thats the answer im giving
I really need help asapppppp
Answer:
5 cups
Step-by-step explanation:
3.75 x 1 1/3
Answer:
5 cups!
Step-by-step explanation:
well, first start off with the whole numbers. then move onto fractions and add it up. they need common denominators!
2(x+5)=1/2(x-4)
Step by step
[tex]\text {Hello! Let's Solve this Problem!}[/tex]
[tex]\text {\underline {The First Step is to Simplify}}[/tex]
[tex]\text {2*x=2x}\\\text {2*5=10}\\\text {1/2*x=1/2x}\\\text {1/2*-4=-2}[/tex]
[tex]\text {Your New Problem Is: 2x+10=1/2x-2}[/tex]
[tex]\text {\underline {The Next Step is to Subtract 1/2x}}[/tex]
[tex]\text {2x+10-1/2x=1/2x-2-1/2x}[/tex]
[tex]\text {Your New Problem Is: 3/2x+10=-2}[/tex]
[tex]\text {\underline {The Next Step is to Subtract 10}}[/tex]
[tex]\text {3/2x+10-10=-2-10}[/tex]
[tex]\text {Your Final Problem Is: 3/2x-12}[/tex]
[tex]\text {\underline {The Final Step is to Multiply 2/3}}[/tex]
[tex]\text {2/3*3/2x=2/3*-12}[/tex]
[tex]\text {Your Answer Would Be:}[/tex]
[tex]\Huge\boxed {x=-8}[/tex]
[tex]\text {Best of Luck!}[/tex]
[tex] \huge\bf \underline{Solution:-}[/tex]
[tex]2(x + 5) = \frac{1}{2} (x - 4)[/tex]
[tex]⇒2x + 10 = \frac{x}{2} - \frac{4}{2} [/tex]
[tex]⇒2x - \frac{x}{2} = - \frac{4}{2} - 10[/tex]
[tex]⇒ \frac{4x - x}{2} = - 2 - 10[/tex]
[tex]⇒ \frac{3x}{2} = - 12[/tex]
[tex]⇒3x = - 24[/tex]
[tex]⇒x = - \frac{ 24}{3} [/tex]
[tex]⇒x = - 8[/tex]
[tex] \\ [/tex]
[tex] \sf \underline{Now, \: we \: are \: gonna \: do \: correction \: test :-} [/tex]
[tex]L.H.S. = 2 (x + 5) [/tex]
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2( - 8 + 5)[/tex]
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2 \times ( - 3)[/tex]
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = - 6[/tex]
[tex]R.H.S = \frac{1}{2} (x - 4)[/tex]
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{1}{2} ( - 8 - 4)[/tex]
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{1}{2} \times ( - 12)[/tex]
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = - 6[/tex]
[tex] \bold{ \therefore{L.H.S = R.H.S}}[/tex]
[tex] \sf \red{Hence, \: the \: value \: of \: x \: is \: - 8. }[/tex]
Which value is equivalent to
1 17/2”
Answer:
19/2 or 9.5 or 9 1/2
Step-by-step explanation:
These are equal to 1 17/2
A soda company is filling bottles of soda from a tank that contains 500 gallons of soda. At most, how many 20-ounce bottles can be filled from the tank?
(1 gallon = 128 ounces)
A
25
B
78
C
2,560
D
3,200
Step-by-step explanation:
the answer C
hope this helps bro
and if u need work shown lemme know
Can anyone please help me ? It’s due today :(
Answer:
The new coordinates are:
A' (6, 24)B'(12, 12)C'(-12, 6)Please check the attached graph.
Step-by-step explanation:
We know that when an object is dilated by a scale factor, it gets reduced, stretched, or remains the same, depending upon the value of the scale factor.
If the scale factor > 1, the image is enlarged
If the scale factor is between 0 and 1, it gets shrunk
If the scale factor = 1, the object and the image are congruent
Given the vertices of the triangle in the diagram
A (1, 4)
B(2, 2)
C(-2, 1)
In our case:
Scale Factor K = 6Rule to calculate the dilation by a scale factor 6 centered at the origin
P(x, y) → P'(6x, 6y)
Here, P'(6x, 6y) ) is the image of P(x, y).
It means the coordinates of the image can be determined by multiplying the coordinates of the original point by 6.Thus,
A (1, 4) → A'(6(1), 6(4)) → A'(6, 24)
B(2, 2) → B'(6(2), 6(2)) → B'(12, 12)
C(-2, 1) → C'(6(-2), 6(1)) → C'(-12, 6)
Therefore, the new coordinates are:
A' (6, 24)B'(12, 12)C'(-12, 6)Please check the attached graph.
448 math problems for homework or 28 days. If she solved the same number of problems each day, how many problems did she solve per day? Please answer
Answer:
16
Step-by-step explanation:
448/28=16
if she did the work sheet for 28 days she answered 16 questions per day .
Answer:
it is 16
Step-by-step explanation:
448 ÷ 28 = 16 or 16×28=448
what is the answer to this:
4 + c, when c = 10
Answer:
14
Step-by-step explanation:
4+10=14
Answer:
14
Step-by-step explanation:
4+c
4+(10)=14
Help me plsssssssssssssssssssssssssss
Answer: 120
Step-by-step explanation: divide 24 by 5 to get 4.8 so its 4.8 minutes for one question
25 x 4.8 = 120
helpppppppppppppppppppppp
Answer:
I can only help with a, witch is -3x
Step-by-step explanation:
im sorry i cant help with b, that one i cant even figure out, and im usually pretty good with math
i hope i helped you out a little bit at least
Look on number 7 and solve
Answer:
(0, 0), (-3, -1), (-6, -2), and (6, 2)
Step-by-step explanation: just go along the points that intersect in that line that you created UwU (the line should go through the origin (0, 0). get it now?)
factorise 8x^2 + 10x + 3
Answer:
Step-by-step explanation:
so 8^2 +10x+3 (if you times 8*3 -gives you 24)
the middle number is 10X right so then you have to guess two numbers that either add up or take away to make it a positive 10.
so example if i try 5+5 it gives me 10 but it i multiply 5 by 5 -it gives 25 therefore lets try another pair of numbers.
i chose 6 and 4 because when i add them it gives me 10 and when i multiply them, it gives me 24.
therefore im just going to:
8x^2+6x+4x+3
to factorise im going to use 2x
2x(4x+3) + 1(4x+3)
so my answer is (2x+1) and (4x+3)
can someone help me with school
??? ??? I was also looking for the answer
6,10,14,...
Find the 30th term.
Answer:
6,10,14,...
Find the 30th term.
18,22,26,30
Explanation:
+4 each time?
The first reaction will be a reaction of the iodide ion (I-1) with hydrogen peroxide (H2O2) in an acidic solution. This reaction produces a slightly orange solution. In our experiment, we will add some orange food coloring to make this solution more orange.
2 H+ (aq) + 2 I- (aq) + H2O2 (aq) ⟶ I2 (aq) + 2 H2O (l)
The next reaction will be between the iodine and starch
I2 + starch ⟶ I2-starch complex (blue-black)
So, when starch is added to the iodine solution made from the first reaction, the solution will turn black immediately, so it is difficult to find the rate of reaction. In order to be able to time this reaction, you will slow it down with another reaction. Adding ascorbic acid will react with the iodine, reducing the concentration of the iodine available to react with the starch.
C6H8O6 (aq) + I2 (aq) ⟶ 2I- (aq) + C6H6O6 (aq) + 2 H+ (aq)
When the ascorbic acid is used up, the remaining iodine molecules can react with the starch and form the black color. The more ascorbic acid you add, the slower the reaction to form the iodine-starch complex will be.
1. What was your hypothesis?
2. Plot your data as drops of ascorbic acid vs. time.
3. As the concentration of ascorbic acid was increased, did the rate of the formation of the iodine-starch complex increase or decrease? Explain your answer in terms of the chemical reactions involved.
4. Was your hypothesis correct?
5. Make a general rule about the effects of concentration of reactants on reaction rates.
6. For practice, the molecular formula for ascorbic acid is C6H8O6, and you used 6 g in this experiment, calculate the molarity of the ascorbic acid. Now calculate the concentration in moles per drop (assume 1 mL = 20 drops).
Answer:
hello ! i just did this project and received a 100,, so here you are ::
1. I hypothesize that if you continue to add more drops, then the time it takes will continue to increase.
2. A; 9.70 secs, B; 14.63 secs, C; 18.78 secs, D; 28.70 secs, E; 31.45 secs.
3. The formation continued to increased. As more was added, the time it took to reach the full reaction was increased.
4. Yes.
5. When the concentration of all the reactants increases, more molecules or ions interact to form new compounds, and the rate of reaction increases. When the concentration of a reactant decreases, there are fewer of that molecule or ion present, and the rate of reaction decreases.
6. 6mL.
Step-by-step explanation:
for this one it was simple, they are only asking you what you think will happen to the time if they increase the number of drops. remember to use the "if....then..." format.i recorded the container labeled and the time it took for the solution to turn black. they are asking the same thing that they are for the hypothesis but this time after watching the video you know what actually happens. in this case, the more drops you put in the longer it takes for it to react. write this one down without the if then format.for mine, i got it correct but you can put yours wrong on purpose if youd like.i looked this one up, but it makes sense. this is correct, so dont worry.like i said,, i go this correct so dw ! <3
The rate of reaction depends on the slow step of a reaction.
A hypothesis is a tentative explanation of an observation. This question refers to an experiment so I will try to explain as much as possible. We can see that the rate of reaction is determined by the concentration of the ascorbic acid.
Hence, we can assert that, the more the concentration of the ascorbic acid, the lower the rate of reaction. The rate of reaction depends on the slow step of a reaction.
We know that the molar mass of ascorbic acid is 176 g/mol. The mass of ascorbic acid is 6 g. Hence;
Number of moles of ascorbic acid = 6 g/176 g/mol = 0.034 moles
concentration of ascorbic acid = 0.034 moles/20 × 1 × 10-3 = 1.7 M
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