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PIT_PIT [208]
2 years ago
5

A high school track is shaped as a rectangle with a half circle on either side.

Mathematics
2 answers:
earnstyle [38]2 years ago
8 0

Answer:

Step-by-step explanation:

perimeter=2(85)+π(12.5)=220+2×12.5π

=170+25×3.14

=170+78.5

=248.5

distance ran=3×248.5=745.5 yards.

gtnhenbr [62]2 years ago
3 0

Answer:

Step-by-step explanation:

d= 25 yards ;   r = 25/2 = 12.5 yards

circumference of two semicircle = circumference of circle

=  2πr = 2*3.14*12.5 = 78.5 yards

Perimeter of school truck  = 78.5 + 85 + 85 = 248.5 yards

Distance traveled by  Jasmine = 3* 248.5 = 745.5 yards

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Each journal weighs about 280 grams.What is total weight of 3 jpurnals?
Phoenix [80]
1 journal = 280 grams 3 journals = 280 * 3 280 * 3 = 840 Total weight of 3 journals = 840 grams
8 0
2 years ago
On his first day of school, Kareem found the high temperature in degrees Fahrenheit to be 76.1°. He plans to use the function to
wolverine [178]
The function for conversions from Fahrenheit to Celsius is:

Celsius = (Fahrenheit - 32) x 5/9 

C(76.1) = (76.1 - 32) x 5/9
             = (44.1) x 5/9
             =  24.5

Therefore, 76.1 degrees Fahrenheit = 24.5 degrees Celsius. 
5 0
2 years ago
Read 2 more answers
Jamal is comparing his transportation options for an upcoming trip. He’s considering a rental car and a taxi service. Based on h
Blizzard [7]

Answer:

Graph A

Step-by-step explanation:

Say that the car rental rate stands for c dollars ( $ ). We know that Jamal's trip lasts for 4 days, paying $ 24 in expenses for gas, and $ 128 for taxi services. Based on these requirements for his trip the question asks for a graph that models this situation, but lets start with the inequality.

______

The big key here is the part " which graph shows the range of car rental rates that would be cheaper than the taxi service. " Our inequality must thus have the variable " c " on the same side as the payment for gas ($ 24 ), and must be less than the taxi service ( $ 128 ), or in other words a less than sign. Another point is the car rental rate. We know it stands for c, but it is dependent on the number of days. Hence we can conclude the following inequality,

24 + 4c < 128 - Subtract 24 from either side,

4c < 104 - Divide by 4 on either side, isolating c,

c < 26

The range of car rental rates that would be cheaper than the taxi service should be { c | 0 ≤ c < 26 }, knowing variable c stands for the car rental rates.

______

The graph that models this range should be the first one, option A. This graph is not accurate however, as it extends infinitely in the negative direction, and you can't have negative money, or rather be in debt - in this situation.

6 0
2 years ago
This figure shows the nose cone of a rocket used for launching satellites. The nose cone houses the satellite until the satellit
Elena-2011 [213]

see the attached figure to better understand the problem

we know that

The volume of the cone is equal to

V=\frac{1}{3} \pi r^{2} h

in this problem

r=\frac{6}{2} =3\ ft\\ \\ h=15\ ft

Substitute the values in the formula above

V=\frac{1}{3}* \pi* 3^{2}* 15\\ \\ V=45\pi \ ft^{3}

therefore

the answer is

The volume of the nose cone is 45\pi \ ft^{3}

7 0
2 years ago
Read 3 more answers
How do you solve -9( -4r + 6s ) + 3s - 7(6s - 2r)
slavikrds [6]

Answer: 2.1 Pull out like factors :

6s - 2r  =   -2 • (r - 3s)

Equation at the end of step

 ((0-(9•(6s-4r)))+3s)--14•(r-3s)

Pulling out like terms

4.1     Pull out like factors :  6s - 4r  =   -2 • (2r - 3s)

Equation at the end of step

 ((0--18•(2r-3s))+3s)--14•(r-3s)

Final result :

 <u>50r - 93s</u>

7 0
2 years ago
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