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bixtya [17]
2 years ago
6

PLEASE TELL ME THE VALUE

Mathematics
1 answer:
MatroZZZ [7]2 years ago
3 0

Answer:

Hello! answer: there are 7 quarters which are worth 25 cents each 6 dimes which are worth 10 cents each

there are 5 nickels which are worth 5 cents each and there are 8 pennies which are worth 1 cent each

the total value off all of these together is $2.68

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The correct answer is:  [B]:  " v₁ / t₁ = v₂ / t₂<span> " .
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3 years ago
Erika had three pieces of ribbon . Each piece is 25 yards long. She needs to cut pieces that are 22 inches long . What is the gr
Kisachek [45]
B. 120 because you cant glue the ribbon together, simply multiply 25 by 3 multiply that by 12 divide that by 22 then multiply that by 3

4 0
3 years ago
A ball is thrown into the air with an upward velocity of 36 ft/s. Its height h in feet after t seconds is given by the function
hram777 [196]
To find the the maximum value of a function, we set the first derivative equal to 0 and solve for the critical points. The first derivative is:

h'(t) = -32t + 36

Now we will find the critical points:

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-4(8t-9) = 0

8t - 9 = 0

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Does the data represent a negative, positive, or no correlation​
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Step-by-step explanation:

8 0
3 years ago
Find the volume and surface area of the composite figure. Give your answer in terms of π. HELP ASAP!!
NARA [144]

Answer:

Part 1) The volume of the composite figure is 620.7\pi\cm^{3}

Part 2) The surface area of the composite figure is 273\pi\ cm^{2}

V=620.7\pi\cm^{3}, S=273\pi\ cm^{2}

Step-by-step explanation:

Part 1) Find the volume of the composite figure

we know that

The volume of the figure is equal to the volume of a cone plus the volume of a hemisphere

<em>Find the volume of the cone</em>

The volume of the cone is equal to

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

we have

r=7\ cm

Applying Pythagoras Theorem find the value of h

h^{2}=25^{2} -7^{2} \\ \\h^{2}= 576\\ \\h=24\ cm

substitute

V=\frac{1}{3} \pi (7)^{2} (24)

V=392 \pi\cm^{3}

<em>Find the volume of the hemisphere</em>

The volume of the hemisphere is equal to

V=\frac{4}{6}\pi r^{3}

we have

r=7\ cm

substitute

V=\frac{4}{6}\pi (7)^{3}

V=228.7\pi\cm^{3}

therefore

The volume of the composite figure is equal to

392 \pi\cm^{3}+228.7\pi\cm^{3}=620.7\pi\cm^{3}

Part 2) Find the surface area of the composite figure

we know that

The surface area of the composite figure is equal to the lateral area of the cone plus the surface area of the hemisphere

<em>Find the lateral area of the cone</em>

The lateral area of the cone is equal to

LA=\pi rl

we have

r=7\ cm

l=25\ cm

substitute

LA=\pi(7)(25)

LA=175\pi\ cm^{2}

<em>Find the surface area of the hemisphere</em>

The surface area of the hemisphere is equal to

SA=2\pi r^{2}

we have

r=7\ cm

substitute

SA=2\pi (7)^{2}

SA=98\pi\ cm^{2}

Find the surface area of the composite figure

175\pi\ cm^{2}+98\pi\ cm^{2}=273\pi\ cm^{2}

4 0
3 years ago
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