Answer:
6.144
Step-by-step explanation:
Given the expression
5ln(4t) = 16
Required
Solve for t
5ln(4t) = 16
Divide both sides by 5
5ln(4t)/5 = 16/5
ln(4t) = 3.2
Apply exponent to both sides of the equation
e^ln(4t) = e^3.2
4t = e^3.2
4t = 24.53
t = 24.53/4
t = 6.144
The value of t is 6.144
Una sirena y una persona se acercan entre sí con velocidades de 20 m/s cada una. La sirena emite un sonido de 300 Hz de frecuencia. Halle la frecuencia percibida. (Recuerde que la velocidad del sonido es 343 m/s).
Answer:
La frecuencia percibida es 337,2 Hz.
Step-by-step explanation:
Dado que tanto el emisor del sonido como el receptor se están acercando, la frecuencia percibida es:
[tex] f' = f*\frac{v + v_{r}}{v - v_{e}} [/tex] (1)
En donde:
f': es la frecuencia recibida
f: es la frecuencia emitida = 300 Hz
v: es la velocidad del sonido = 343 m/s
[tex]v_{e}[/tex] es la velocidad del emisor = 20 m/s
[tex]v_{r}[/tex] es la velocidad del receptor = 20 m/s
Sustituyendo los valores en la ecuación (1) tenemos:
[tex]f' = f*\frac{v + v_{r}}{v - v_{e}} = 300 Hz*\frac{343 + 20}{343 - 20} = 337,2 Hz[/tex]
Por lo tanto, la frecuencia percibida es 337,2 Hz.
Espero que te sea de utilidad!
Convert 0.119cL to L
Will give BRAINLIEST
Answer:
b
Step-by-step explanation:
Answer:
(0, 4)
Step-by-step explanation:
g(x)=-3x+4
y intercept is (0, 4)
Holly checked her answer to a division problem by estimating the quotient which is the best estimation of the quotient 23.564 divided by 5.97
Answer: The best estimation is 4
Step-by-step explanation: I rounded 23.564 to 24 and I rounded 5.97 to 6. I did 24 divided by 6. I got 4.
Answer:
A
Step-by-step explanation:
Please help. (look at image)
Determine if the ordered pair (1,4) is a solution of 5y - 2x = 16
Show work
Answer:
No, it is not
Step-by-step explanation:
5(4) - 2(1) = 16
20 - 2 = 16
18≠16
Cam can't figure what to eat. He is going to randomly select a piece of fruit from his pantry. These are 4 apples and 5 bananas in his pantry.
Answer:
the total number of fruits are 4+5=9
probability of picking an apple 4/9
probability of picking a banana 5/9
Answer:
0.44
Step-by-step explanation:
P(select an apple)= 4/9 = 0.44
Khan Academy
Which of the following measurements is
smallest?
a. 12 inches
b. 216 inches
c. 412 inches
d. 12/4 inches
Willie left the mall and traveled toward the town hall at an average speed of 40 km/h. Gabriella left two hours later and traveled in the opposite direction with an average speed of 70 km/h. Find the number of hours Gabriella needs to travel before they are 410 km apart.
a) 1 hour
b) 3 hours
c) 4 hours
d) 2 hours
Answer:
b) 3 hours
Step-by-step explanation:
Given;
speed of Willie , s = 40 km/h
speed of Gabriella, s = 70 km/h
when they are 410 km apart:
Willie's time = t
Gabriella's time = t- 2
2 hours later, the position of Willie = 40t
2 hours later, the position of Gabriella = -70 (t-2) (since he is traveling in opposite direction)
the difference in their positions = 410 km
40t - {-70 (t-2)} = 410
40t -{-70t + 140} = 410
40t + 70t - 140 = 410
110t = 410 + 140
110t = 550
t = 550 / 110
t = 5 hours
Gabriella's time = t- 2
Gabriella's time = 5 - 2 = 3 hours
Thus, Gabriella needs to travel 3 hours before they are 410 km apart.
Candice spent 3 ⅘ hours, and Shane spend 2 ⅒ hours at track practice over the weekend. How many more hours did Candice spend than Shane at track practice?
Answer:
1 7/10
Step-by-step explanation:
2 1/10 - 3 4/5= 1 7/10 but if you don't understand this then...
Take the wholes and minus both of them which makes 1 (BTW this will be your whole number) Then convert 4/5 into tenths (easier way: draw 4 circles and cut them in half, then count all the halves. That will be your answer, in this case my answer would be 8/10) Now since Shane spent 2 1/10 hours on track we are going to take the fraction beside the whole number (AKA 1/10) and minus it by our 4/5 (AKA 8/10) Now we have 7/10. Our answer would be 1 7/10.
what is the base of the expression 11 12
Answer:
B. 11
Step-by-step explanation:
Edge 2021 :)
A bus is known to arrive every 10 minutes on average at a certain bus stop. You arrive at the bus stop, hoping to catch the bus. How long are you expected to wait for the bus
Answer:
10 minutes maximum
Step-by-step explanation:
well, based on the condition/fact that the bus takes and average of 10 minutes to arrive at a bus stop, you can assume that the previous bus just left(that is worst case scenario), so might have to weight for 1o minutes to get a bus.
Hence for the worst case it is expected that you would have to wait for 10 minutes maximum for the next bus to arrive, or you might even wait for a shorter time.
n= 9c-80 solve for c
Answer:
[tex] c = \frac{n + 80}{9}[/tex]
Step-by-step explanation:
[tex]n = 9c - 80 \\ \\ n + 80 = 9c \\ \\ \frac{n + 80}{9} = c \\ \\ \huge \red {c = \frac{n + 80}{9}}[/tex]
Divide.
5/6 ÷ -2/3
A. -5/4
B. -5/9
C. 5/9
D. 5/4
Answer:
the answer is A
Step-by-step explanation:
i think this is the answer
Elena walked 12 miles and then she walked 1/4 that distance how far did she walk together
Answer:
15 miles
Step-by-step explanation:
1/4 = .25
12 ÷ 4 = 3
12 + 3 = 15
Answer:
12 1/4 miles
Step-by-step explanation:
Are 12:21 and 7:16 equivalent
Answer:
no
Step-by-step explanation:
12/21 is not equal to 7/16
Evaluate q - r if q = -14 and r=-6.
Answer:
-8
Step-by-step explanation:
q - r
-14 - (-6)
-14+6
-8
The diver's actions can be represented by the subtraction equation 3-4 = -1
1. Write a related addition sentence for the subtraction sentence.
Answer:
jdtttttttttttttttttttjjfjyk
Step-by-step explanation:
thanks.
What is an equation of the line that passes through the points (2, -6) and (-1, 6)?
Answer: (Point-Slope) y+6=-1/4(x-2)
Step-by-step explanation:
1. Find slope (y2-y1)/(x2-x1) = -3/12 simplifies to -1/4
2. Point slope form: y-y1=m(x-x1)
Answer:
The equation is y= - 4x+2 .
According to a random sample taken at 12 A.M., body temperatures of healthy adults have a bell-shaped distribution with a mean of F and a standard deviation of F. Using Chebyshev's theorem, what do we know about the percentage of healthy adults with body temperatures that are within standard deviations of the mean? What are the minimum and maximum possible body temperatures that are within standard deviations of the mean? At least nothing% of healthy adults have body temperatures within standard deviations of F. (Round to the nearest percent as needed.)
Answer:
At least 89% of the data
Minimum = 96.34 F
Maximum= 100.06 F
Step-by-step explanation:
According to the Chebyshev's theorem 89% of the data are within the 3 standard deviations of the mean.
The mean body temperature is 98.20 F and standard deviation is 0.62 F
Mean- 3SD= 98.20 F- 3(0.62)= 98.20 F- 1.86= 96.34 F
Mean + 3SD= 98.20 F + 3(0.62)= 98.20 F+ 1.86= 100.06 F
The perimeter of the rectangle below is 176 units. Find the value of x.
3x + 1
4x + 3
A PAIR OF SHOES IS DISCOUNTED BY 25%. THE DISCOUNTED PRICE WAS $93.75. WHAT WAS THE ORIGINAL PRICE AHHH SOMEONE ANSWER
Answer:
$70.31
Step-by-step explanation:
Hope this helps
Answer:
$117.19
Step-by-step explanation:
93.75 * .25 =23.4375
23.4375+93.75 = $117.1875
(rounded:$117.19)
someone know the answer ? please
Answer:
B
Step-by-step explanation:
-9x + 10x = 1
-y + y = 0
10 - 9 = 1
7÷7257 step by step
Answer:
0.00096458591
Step-by-step explanation:
hope it helps :)
Answer: 1036
Remainder: 5
Step-by-step explanation:
What is the slope of the function?
Answer: Your answer should be, (4)
Convert the mixed number to a fraction and reduce 7 2/8
Answer:
29/4
Step-by-step explanation:
7 2/8
58/8=29/4
Answer:
29/4
Step-by-step explanation:
multiply 7 and 8 which is 56 then add 2 which will be 58 for the numerator, the denominator stays the same. 58/8 simplify by dividing 58 divided by 2 and 8 divided by 2 which will get u the answer as 29/4
Pls mark as brainliest thank you, have a nice day!!!!
a square has a side length represented by the expression 2x + 5. write the expression that represents the area of the square
Answer:
4x+25
I hope this helped ;)
What are the points?
which expression is equalivent 7 - 4(2x - 3)
5.3 pounds of almonds cost $20.67. 1.4 pounds of pecans cost $9.45. How much more does pecans cost per pound?
Answer:
2.85 dollas
Step-by-step explanation:
Answer:
$2.85 more
Step-by-step explanation:
divide 20.67 by 5.3 and get 3.90
divide 9.45 by 1.4 and get 6.75
then you do 6.75-3.90 and get 2.85 as you answer
so the cost of almonds per pound is $3.90, and pecans cost $2.85 more per pound
Hope this Helps!!
:)