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3 years ago

Adelaide signed up for swimming lessons. Before start-

Mathematics

1 answer:

erica [24]3 years ago

5 0

The height of the higher board above the water surface is 12 feet.

The distance from the high dive to the bottom of the deep end is 24 feet.

<h3>What does division mean?</h3>

Division is the process of dividing a number into equal parts using another number. The sign used to denote division is ÷.

<h3>What is the height of the higher board above the water surface?</h3>

In order to determine the height of the higher board, divide the height of the lower board by 25%.

Height of the higher board = 3 feet / 25%

3 / 0.25 = 12 feet

<h3>what is the distance from the high dive to the bottom of the deep end?</h3>

12 feet + 12 feet = 24 feet

To learn more about division, please check: brainly.com/question/13281206

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3 years ago

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Imagine cutting this shape into two semi-circles and one rectangle.

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Each semi-circle has a diameter of 36 meters
The radius would be <em>(36/2) = </em>18 meters.

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<em>We know the area of a whole circle which is π</em> $r^{2}$ <em />

The formula of area of a semi-circle: 1/2(π $r^{2}$ )

<em>because a semi-circle is basically half of the whole circle!</em>

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However, since we have two equal semi-circles...we can just put them together and solve for the whole circle's area.

<em>for reference: </em>

1/2(π $r^{2}$ ) + 1/2(π $r^{2}$ ) = 2/2(π $r^{2}$ ) = π $r^{2}$

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First, the area of rectangle: length times width = 84 x 36 = 3024 square meters

<em>Anyways, since we have to sub in 3.14 for π </em>

Area of a whole circle: (3.14 x $r^{2}$ ) = (3.14 x $18^{2}$ ) = 1017.36 square meters

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3024 + 1017.36 = 4041.36 square meters

<h2>ANSWER: J </h2>

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3 years ago

Can anyone help me with calculus??

gogolik [260]

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$\dfrac{\mathrm d}{\mathrm dx}[x^2+y^2]=\dfrac{\mathrm d}{\mathrm dx}1$

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$\dfrac{\mathrm d^2y}{\mathrm dx^2}=-\dfrac{y-x\frac{\mathrm dy}{\mathrm dx}}{y^2}$

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3. Check the one-side limits where the pieces are split. For $f$ to be continuous everywhere, we need

$\displaystyle\lim_{x\to-1^-}f(x)=\lim_{x\to-1^+}f(x)=f(-1)$

$\displaystyle\lim_{x\to1^-}f(x)=\lim_{x\to1^+}f(x)=f(1)$

In the first case, we have

$\displaystyle\lim_{x\to-1^-}f(x)=\lim_{x\to-1}x+2=1$

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and $f(-1)=1$ , so it's continuous here.

In the second case, we have

$\displaystyle\lim_{x\to1^-}f(x)=\lim_{x\to1}x^2=1$

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6. The average velocity over [1, 2] is given by

$\dfrac{s(2)-s(1)}{2-1}=(2^2+2)-(1^2+1)=4$

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So $f'(1)=\dfrac1{\ln2}$ .

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4 years ago

Nan is 20 year old. In 8 years,she will be twice as old as Clarisse.how old is clarisse now?

slega [8]

Answer:

Step-by-step explanation:

The equation for this problem would be c = (20 + 8) / 2 - 8. Add 20 and 8 to get 28, divide 28 by 2 to get 14, then subtract 8 to get 6.

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2 years ago

3) BRAINLIEST & 10+ POINTS!

Zanzabum

Answer:

44rad/sec

Step-by-step explanation:

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3 years ago