The image below shows four soccer balls at different
locations on an uneven soccer field. Which ball has the
greatest amount of kinetic energy? Explain your answer.
Answer: letter d
Step-by-step explanation:
Answer:
Ball D. Among the four balls in this picture, ball D is the only one whose kinetic energy is greater than [tex]0[/tex].
Step-by-step explanation:
Consider an object of mass [tex]m[/tex]. If this object is moving at a speed of [tex]v[/tex], the kinetic energy of this object would be:
[tex]\displaystyle \frac{1}{2}\, m \cdot v^{2}[/tex].
The speed [tex]v[/tex] of ball A, B, and C are all [tex]0[/tex]. Hence, the kinetic energy of these three balls would be [tex]0\![/tex].
The speed of ball D is greater than [tex]0[/tex]: [tex]v = 2\; \rm m \cdot s^{-1}[/tex]. The kinetic energy of this ball would be:
[tex]\begin{aligned} {\rm KE} &= \frac{1}{2}\, m \cdot v^{2} \\ &= \frac{1}{2}\times \rm 0.43\; \rm kg \times \left(2\; \rm m \cdot s^{-1}\right)^{2}\\ &= 0.86\; \rm J\end{aligned}[/tex].
Hence, the kinetic energy of ball D is the greatest among the four balls in this picture.
HELLPP PLSS ASAPP!! THANKSS
Answer:
12
Step-by-step explanation:
Answer:
[tex]12[/tex]
Step-by-step explanation:
1) Simplify 4² to 16.
[tex] \frac{ - \frac{1}{3} \times - 33 - \frac{1}{2} \times 16 }{ \frac{1}{4} } [/tex]
2) Move the negative sing to the left side.
[tex] \frac{ - ( - \frac{33}{3}) - \frac{1}{2} \times 16 }{ \frac{1}{4} } [/tex]
3) Simplify 33/3 to 11.
[tex] \frac{ - ( - 11) - \frac{1}{2} \times 16 }{ \frac{1}{4} } [/tex]
4) Simplify 1/2 × 16 to 16/2.
[tex] \frac{ - ( - 11) - \frac{16}{2} }{ \frac{1}{4} } [/tex]
5) Simplify 16/2 to 8.
[tex] \frac{ - ( - 11) - 8}{ \frac{1}{4} } [/tex]
6) Remove parentheses.
[tex] \frac{11 - 8}{ \frac{1}{4} } [/tex]
7) Simplify 11 - 3 to 8.
[tex] \frac{3}{ \frac{1}{4} } [/tex]
8) Invert and multiply.
[tex]3 \times 4[/tex]
9) Simplify.
[tex]12[/tex]
Therefor, the answer is 12.
Carl runs 1 mile (mi) in 10 minutes. How long will it take him to run 24 mi at the same speed?
1. 24 min
2. 34 min
3. 2.4 hours
4. 4.0 hours
(4/2)4 + (1 + 3)?
I really need help!
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\text{Just do PEMDAS}[/tex]
[tex]\large\text{Parentheses}[/tex]
[tex]\large\text{Exponents}[/tex]
[tex]\large\text{Multiplication}[/tex]
[tex]\large\text{Division}[/tex]
[tex]\large\text{Addition}[/tex]
[tex]\large\text{Subtraction}[/tex]
[tex]\mathsf{(\dfrac{4}{2})(4) + (1+3)}[/tex]
[tex]\mathsf{\dfrac{4}{2} = 2}[/tex]
[tex]\mathsf{2(4) + (1 + 3)}[/tex]
[tex]\mathsf{2(4) = 8}[/tex]
[tex]\mathsf{8 + (1 + 3)}[/tex]
[tex]\mathsf{1 + 3 = 4}[/tex]
[tex]\mathsf{8 + 4 = 12}[/tex]
[tex]\boxed{\boxed{\large\text{Answer: \bf \huge12 }}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day! }[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Matt walked 1 mile in 15 minutes.
At this rate, how many miles would
he walk in 2 hours?
HELP PLS
Answer:
8 miles he will walk in 2 hours
Step-by-step explanation:
This is because there are four 15 minute sets in one hour meaning in two hours you will encounter 8 of these sets.
Answer:
8 miles
Step-by-step explanation:
we can get the answer using the distributive property, if we multiply 4 by 15 we get 60 and 60 minutes is an hour so if we do that twice we get 2 hours so now that we've done that we will do the same with the mileage by multiplying the amount we did to the time to the distance and we get 8 miles
Some students want to order shirts with their school logo. One company charges $9.65 per shirt plus a setup fee of $43. Another company charges $8.40 per shirt plus a $58 fee. Which equation represents the number of shirts when both companies charge the same amount?
Answer:
$58+8.40=$66.4
Step-by-step explanation:
Find the value of the expression below pls help
Answer:
D 1/16
Step-by-step explanation:
(1/2)^4=.0625
.0625= 1/16
I am trying to solve this but I don't understand.
Answer:
a = 42 b = 21
Step-by-step explanation:
a is 42 since it ks vertically opposite 42
To solve for b
360 - (42×2)........to get the angle next to a
=276... Divde answer by 2. Bc there are two of the angles
276÷2 =138
138 + 2b =180
2b = 180 - 138
b = 42 ÷ 2
b = 21
Which expression can be used to determine the perimeter, in units, of FGH
A.
B.
C.
or
D.
Answer:
D
Step-by-step explanation:
In second grade Eliza was given 500 from her grandparents this money was deposited into a savings account that earns 3% annual interest compounded quarterly find the account balance at graduation is there no other deposits or withdrawals in the account
Answer:
account balance at graduation is 674.17
Step-by-step explanation:
given data
deposit money P = 500
interest rate = 3 % compounded quarterly
we take time period = 10 year ( 2nd grade to 12 grade)
solution
we apply here compound interest formula that is
amount = [tex]P \times (1+\frac{r}{4})^{4t}[/tex] ..................1
put here value and we get
amount = [tex]500 \times (1+\frac{0.03}{4})^{4\times 10}[/tex]
amount = 674.174
so account balance at graduation is 674.17
Answer:
$694.63
Step-by-step explanation:
The formula is p(1+r/n)^tn. P, or the principal amount, is 500 dollars. R, or the rate as a decimal, is 0.03. N, or the number of times compounded yearly, is 4. T, or the time in years, is 11, since there are 11 years from grade 2 to grade 12. 12-2+1=11. Now, plug in the information given. 500(1+0.03/4)^4*11 = 500(1.0075)^44 = 694.63 dollars, rounded to the nearest cent.
solve x-19 <81. then graph the solution.
Answer:
x<100 and look at picture
Step-by-step explanation:
x-19<81
+19 +19
x<100
+100 on number line, opened line to the left
X<100
Step-by-step explanation:
x-19<18
+19 +19
x<100
+100 on number line, opened line to the left
1. What is the area of this parallelogram? А) B 5 D 7- O A. 12 square units O B. 24 square units O C.35 square units O D.48 square units
Answer:
Area of this parallelogram = 35 square unit
Step-by-step explanation:
Given:
Base = 5 unit
Height = 7 unit
Find:
Area of this parallelogram
Computation:
Area of this parallelogram = Base x Height
Area of this parallelogram = 5 x 7
Area of this parallelogram = 35 square unit
in OPQ, the measure of Q=90°, the measure of O=48°, and QO = 4.9 feet. Find
the length of PQ to the nearest tenth of a foot.
Answer: x=5.442≈5.4 feet
Answer:
5.9
Step-by-step explanation:
It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minutes per day that people spend standing or walking. Among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately Normally distributed with 367 minutes and standard deviation 64 minutes. The mean number of minutes of daily activity for lean people is approximately Normally distributed with 525 minutes and standard deviation 110 minutes. A researcher records the minutes of activity for an SRS of 8 mildly obese people and an SRS of 8 lean people. (a) What is the probability that the mean number of minutes of daily activity of the 8 mildly obese people exceeds 400 minutes
Answer:
0.0721 = 7.21% probability that the mean number of minutes of daily activity of the 8 mildly obese people exceeds 400 minutes
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately Normally distributed with 367 minutes and standard deviation 64 minutes.
This means that [tex]\mu = 367, \sigma = 64[/tex]
A researcher records the minutes of activity for an SRS of 8 mildly obese people.
This means that [tex]n = 8, s = \frac{64}{\sqrt{8}} = 22.63[/tex]
(a) What is the probability that the mean number of minutes of daily activity of the 8 mildly obese people exceeds 400 minutes?
This is 1 subtracted by the pvalue of Z when X = 400. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{400 - 367}{22.63}[/tex]
[tex]Z = 1.46[/tex]
[tex]Z = 1.46[/tex] has a pvalue of 0.9279
1 - 0.9279 = 0.0721
0.0721 = 7.21% probability that the mean number of minutes of daily activity of the 8 mildly obese people exceeds 400 minutes
-8x+14 = -15x+10
x = ?
Answer:
-4/7
Step-by-step explanation:
Add 15x to each side. Then subtract 14 to each side.
Solve each inequality.
1. 5x + 2 <17
Answer:
x<3
Step-by-step explanation:
5x+2<17
Subtract 2 from both sides.
5x<17−2
Subtract 2 from 17 to get 15.
5x<15
Divide both sides by 5. Since 5 is positive, the inequality direction remains the same.
x=15/5
Divide 15 by 5 to get 3.
x<3
What's the part B answer, It says "Justify your answer from part A"
HELP ME ASAP.
This question is from Algebra Nation.
Answer:
Step-by-step explanation:
vertex form y = (x-h)^2 + k and vertex is at ( h, k)
the problem has y = x^2 + 5
then y = (x - 0)^2 + 5 the vertex is at ( 0 , 5)
shift that to the right 3 , then
y = ( x - 3)^2 + 5 now the vertex is at (3,5) nice
now shift to the left 10 ( to the left is sooner, to the right is later , that why we subtract to go right and add to go left)
y = ( x + 10 )^2 + 5 now the vertex is at ( -10, 5 ) or shifted 10 left
:)
Use the given scale factor and the side lengths of the scale drawing to
determine the side lengths of the real object.
Scale factor: 4:1
10 in
6 in
b
8 in
Scale drawing
Object
A. Side a is 10 inches long, side bis 12 inches long, and side cis 14
inches long
B. Side a is 2 inches long, side bis 4 inches long, and side c is 6
inches long.
O
C. Side a is 24 inches long, side bis 32 inches long, and side cis 40
inches long.
d
D. Side a is 1.5 inches long, side bis 2 inches long, and side c is 2.5
inches long
Answer:
D for sure
Step-by-step explanation:
i dont know if you have time for this so i explain it in the comments if you need it
Answer:
the answer is D
Step-by-step explanation:
help me and i givee points give me correct answer
Answers:
Fractions A
Red flower fraction== 40/100
Purple flower fraction=47/100
Trees fraction=7/100
Decimals
Orange flower decimal=0.06
Trees decimal=0.07
Percents
Red flower percent=40%
Orange flower percent=6%
Purple flower percent=47%
Ask for help when you need it, I'm here until 2:30
I hope this helps!
If you need more help, don't hesitate to ask!
May I have brainliest, please?
What is half of 2 2/3
Answer:
1 1/3 (Decimal: 1.333333)
Step-by-step explanation:
Find the length of the missing side. Simplify the radical if necessary
22 ft
26 ft
24 ft
28 ft
Answer:
26
Step-by-step explanation:
24²+10²=x²
676=x²
x=√676
x=26
Pythagorean theorem
Name the two congruent triangles
[tex] \boxed{ \blue{Answers + Explain}} [/tex]
the two triangles are congruent. Because it has sides that match and are the same length.
.
the corresponding side is:
[tex] \rm AC \cong CE [/tex][tex] \rm CD \cong BC [/tex][tex] \rm AD \cong BE [/tex].
the corresponding angle is:
[tex] \rm \angel{CAD} = \angel{BEC} [/tex][tex] \rm \angel{ADC} = \angel{EBC} [/tex][tex] \rm \angel{ACD} = \angel{BCE} [/tex]2 [ 32 - (4-1) to the third power ]
Answer:
The correct answer is 10 hope this helps can u pls give me brainliest
Step-by-step explanation:
The solution of the given expression is 10.
What is simplification of an expression?Usually, simplification involves proceeding with the pending operations in the expression. Like, 5 + 2 is an expression whose simplified form can be obtained by doing the pending addition, which results in 7 as its simplified form.
A Simplification usually involves making the expression simple and easy to use later.
WE have been given 2 [ 32 - (4-1) to the third power ]
Solving it further;
2 [ 32 - (4-1) to the third power ]
2 [ 32 - (4-1)^{3} ]
2 [ 32 - (3)^{3} ]
2 [ 32 - 27 ]
2 [5]
10
Therefore, the solution of the given expression is 10.
Learn more about simplification;
https://brainly.com/question/17579585
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Mr. Brown purchased tires for his car. The tires were $75 each, including tax, plus $10 for installation. Mr. Brown paid $160 for the tires and installation. Which equation can be used to find the number of tires, t, Mr. Brown purchased?
A. t = 160 + 75(10)
B. 75 + t(10) = 160
C. 75t + 10 = 160
D. 160t – 75 = 10
Answer:
C. 75t + 10 = 160
Step-by-step explanation:
Given that
The tire was $75 each
also there is a $10 for installation charges
For both he paid $160
Now based on the above equaton
The equation that applied to determine the number of tires i.e. t is
75t + 10 = 160
Please help I’ll mark you as brainliest if correct!!
Answer:
230 in²
Step-by-step explanation:
14×5=70×3=210
(5×4)÷2=10×2=20
210+20=230
Answer:
It should be 161.5
Step-by-step explanation:
Sorry it’s gonna take long time to explain, but I guess that’s the right answer
What is the difference between (-12)² and -12²?
What is the equation of the line
Answer:
y = 0
Step-by-step explanation:
If the cost of 8 pizzas is $74, what is the cost per pizza? Use a proportion to solve.
Answer:
9.25
Step-by-step explanation:
Answer:
$9.25
Step-by-step explanation:
8 is to $74 as 1 is to x
8/74 = 1/x
4/37 = 1/x
4x = 37 * 1
x = 37/4
x = 9.25
Answer: $9.25
please give me the answer