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3 years ago

In the right triangle shown, m\angle D = 60\degreem∠D=60°m, angle, D, equals, 60, degree and EF= 4\sqrt{3}EF=4

Mathematics

2 answers:

Leona [35]3 years ago

4 0

Answer: the answer is 4

Step-by-step explanation:

Svetlanka [38]3 years ago

3 0

Answer:

Step-by-step explanation:

trust me i did this khan problem

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Solve 1) y"+y'+y=x²;

Naily [24]

Answer:

x2+3y

Step-by-step explanation Combine like terms y+y+y=x2 3y+x2 and the solution is x2+3y.

5 0

3 years ago

Which is the better buy?

madam [21]

2-gallon
bucket for 66.72

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3 years ago

Tyra has 12 2/3 cups of sugar. If r is the amount of sugar called for in one batch of cookies, the expression 12 2/3 ÷ r can be

joja [24]

Answer:

19 batches

Step-by-step explanation:

Given that:

Total number of cups of sugar = $12\frac{2}{3}$

Amount of sugar used in one batch = $r$

Number of batches that can be made by Tyra with the amount of sugar that is available with Tyra can be calculated by dividing the total number of cups of sugar available with Tyra with the amount of sugar to be used in one batch.

i.e.

Number of batches = $12\frac{2}{3} \div r$

Also, if we put the value:

$r=\frac{2}{3}$

We have to find the number of batches of cookies that can be made by Tyra.

Solution:

First of all, let us have a look at the formula to convert the mixed fraction into fractional number.

$a\dfrac{b}{c} = \dfrac{a\times c + b}{c}$

Therefore,

$12\dfrac{2}{3} = \dfrac{12\times 3 + 2}{3} = \dfrac{38}{3}$

Number of batches:

$\dfrac{38}{3} \div \dfrac{2}{3}\\\Rightarrow \dfrac{38}{3} \times \dfrac{3}{2}\\\Rightarrow \bold{19}$

Therefore, 19 batches can be completed.

5 0

3 years ago

Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = ln(3x),

denis23 [38]

Using the disk method, the volume is obtained with the integral

$\displaystyle\pi\int_{y=1}^{y=5}\left(\frac{e^y}3\right)^2\,\mathrm dy=\frac\pi9\int_1^5e^{2y}\,\mathrm dy$

The radius of each disk is given by the horizontal distance from the axis of revolution, $x=0$ , to the logarithmic curve which we can write as a $x(y)$ :