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Inga [223]
2 years ago
7

Joni has a circular

Mathematics
1 answer:
sergey [27]2 years ago
4 0

Answer:

12.31 teaspoons

Step-by-step explanation:

Calculate the area of a garden with a radius of 7 feet:

Area = \pir^{2}

Conversion factor (2 teaspoons/25ft^2)

Area = (3.14)(7)^2

Area = 153.9 ft^2

(153.9 ft^2)(2 teaspoons/25ft^2) = 12.31 teaspoons

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Please help it’s easy I think
Nikitich [7]

The frequency of revision times is given by the product of the frequency

density value and the class width.

Correct response:

  • The number of students are <u>72 students</u>

<h3>Methods of calculation using a histogram</h3>

The estimate of the number of students who revised for less than 45

minutes is given by the area, <em>A,</em> under the histogram to the left of the 45

minute mark as follows;

Frequency, f = Frequency density × Class width

Number of students = ∑f

Therefore;

A = 5 × 2 + 10 × 2.2 + 20 × 1.6 + 10 × 0.8 = 72

  • The number of students that revised for less than 45 minutes = <u>72 </u>students

Learn more about histograms here:

brainly.com/question/17139138

4 0
2 years ago
Consider this expression.
xxTIMURxx [149]

Answer:

hope this helped you

please mark as the brainliest (ㆁωㆁ)

8 0
3 years ago
How many 4 digit EVEN numbers can be made using the numbers 0, 1, 2, 3 (repetition allowed)
12345 [234]

Answer:

the answer is over 20

Step-by-step explanation:

5 0
2 years ago
Solve using inverse operations 83+q=125; q=
Vilka [71]

Answer:

42

Step-by-step explanation:

83+q=125

q=125-83

q=42

3 0
3 years ago
I REALLY NEED HELP PLEASE!!  
disa [49]


part A)

\bf \begin{array}{ccllll}&#10;hours(x)&velocity(y)\\&#10;-----&-----\\&#10;1&6\\&#10;3&2&#10;\end{array}\\\\&#10;-------------------------------\\\\


\bf \begin{array}{lllll}&#10;&x_1&y_1&x_2&y_2\\&#10;%   (a,b)&#10;&({{ 1}}\quad ,&{{ 6}})\quad &#10;%   (c,d)&#10;&({{ 3}}\quad ,&{{ 2}})&#10;\end{array}&#10;\\\\\\&#10;% slope  = m&#10;slope = {{ m}}= \cfrac{rise}{run} \implies &#10;\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{2-6}{3-1}\implies \cfrac{-4}{2}\implies -2

\bf y-{{ y_1}}={{ m}}(x-{{ x_1}})\implies y-6=-2(x-1)\\&#10;\left. \qquad   \right. \uparrow\\&#10;\textit{point-slope form}&#10;\\\\\\&#10;y-6=-2x+2\implies y=-2x+2+6\implies \boxed{y=-2x+8}

part B)

well, we know y = -2x+8.... so.. what's the runner's velocity after 5hours? well, x = 5, thus y = -2(5) +8 ---> y = -2

to graph it, well, is a LINEar equation, meaning the graph is a LINE, and to graph a line, all you need is two points, and by now, you have more than two.. so graph it away.
7 0
3 years ago
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