3 years ago

What fraction is greater? 7/20 OR 17/20 explain

Mathematics

2 answers:

soldier1979 [14.2K]3 years ago

5 0

Answer:

17/20

Step-by-step explanation:

pochemuha3 years ago

3 0

Answer: 17/20

Step-by-step explanation: For example, 17 slices of cake or 7 slices of cake.

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7. Simplify the answer to the equation. 3k + 4 + 2k +5

nignag [31]

Answer:

5k + 9

Step-by-step explanation:

3k + 4 + 2k + 5 =

= 5k + 9

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2 years ago

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Find the difference. Express your answer in simplest form. z-7/z+8-(-2z-7)/z+8

Levart [38]

Answer:

z^2x+10zx+8z^2+73z+7z/(z+8)(z+8)

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3 years ago

Write the integral that gives the length of the curve y = f (x) = ∫0 to 4.5x sin t dt on the interval [0,π].

Troyanec [42]

Answer:

Arc length $=\int_0^{\pi} \sqrt{1+[(4.5sin(4.5x))]^2}\ dx$

Arc length $=9.75053$

Step-by-step explanation:

The arc length of the curve is given by $\int_a^b \sqrt{1+[f'(x)]^2}\ dx$

Here, $f(x)=\int_0^{4.5x}sin(t) \ dt$ interval $[0, \pi]$

Now, $f'(x)=\frac{\mathrm{d} }{\mathrm{d} x} \int_0^{4.5x}sin(t) \ dt$

$f'(x)=\frac{\mathrm{d} }{\mathrm{d} x}\left ( [-cos(t)]_0^{4.5x} \right )$

$f'(x)=\frac{\mathrm{d} }{\mathrm{d} x}\left ( -cos(4.5x)+1 \right )$

$f'(x)=4.5sin(4.5x)$

Now, the arc length is $\int_0^{\pi} \sqrt{1+[f'(x)]^2}\ dx$

$\int_0^{\pi} \sqrt{1+[(4.5sin(4.5x))]^2}\ dx$

After solving, Arc length $=9.75053$

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3 years ago

What properties makes the equation ture?

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A.2z+5=5+2z

Associative properties

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3 years ago

What are an equinox and a solstice ,and how many are there each year ?

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An equinox is when there are equal amounts of daylight and hours in the night. The equinox falls twice in a year and there is a winter solstice and a summer solstice.

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