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4 years ago

Please help me with #83

Mathematics

2 answers:

vagabundo [1.1K]4 years ago

7 0

A.) 7.54385 in..................

Roman55 [17]4 years ago

6 0

Answer:

a. 7.54385 in^2

Step-by-step explanation:

surface area equation = 3.14 * r^2

diameter is 2 times radius

x=3.14 (1.55^2)

x=7.54385 in^2

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Kris has fifteen 1 1/2 inch blocks. If they were stacked one on top of another in a single stack. How tall would the stack be ?

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Answer:

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Step-by-step explanation:

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4 years ago

Please at least help me cause I have no idea

Blababa [14]

Answer:

Solving the given formula for v2 gives us:

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Step-by-step explanation:

Solving an equation for a particular variable means that the variable has to be isolated on one side of the equation.

Given equation is:

$a = \frac{v_2-v_1}{t_2-t_1}$

Multiplying both sides by t2-t1

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Adding v1 to both sides of the equation

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Hence,

Solving the given formula for v2 gives us:

$a(t_2-t_1)+v_1 = v_2$

8 0

3 years ago

During a bake sale, 1 and 1/2 dozen cookies were sold in 1/3 hour. what is the unit rate for the dozens of cookies sold per hour

rosijanka [135]

Find the number of cookies:

$\text {Cookies = } 1 \dfrac{1}{2} \text { dozens}$

Since 1 dozen = 12:

$\text {Cookies = } 1 \dfrac{1}{2} \times 12$

Change to improper fraction:

$\text {Cookies = } \dfrac{3}{2} \times \dfrac{12}{1}$

Simplify:

$\text {Cookies = } 18$

18 cookies were sold in 1/3 hour:

$\dfrac{1}{3} \text { hour = } 18 \text { cookies}$

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$\text {1 hour = } 54 \text { cookies}$

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Answer: Unit rate for cookies sold = 54/hour
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4 years ago

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Answer:

I believe the answer is 5.291 feet

i used the Pythagoras theory

Step-by-step explanation:(if it needs to be rounded to the nearest hundreth or tenth then the answer will be

rounded to the nearest hundreth:5.29

rounded to the nearest tenth 5.3)

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