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3 years ago

12

Joshua has 7 different varieties of tulips in his garden. If he has 385 tulip plants in total and equal numbers of each variety,

how many of each tulip variety does he have?

1 answer:

Harrizon [31]3 years ago

3 0

Answer:

55

Step-by-step explanation:

385 ÷ 7 = 55

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2 years ago

determine if the following triangles are similar, and if so which postulates or theorem proves they are similar

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3 years ago

Robin had 40 apples to give to 3 groups of children.

wariber [46]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Need help fast plz for my pre calc exam

bezimeni [28]

Answer:

<em>h = 8.54 units</em>

Step-by-step explanation:

<u>The Law of Cosines </u>

It relates the length of the sides of a triangle with one of its internal angles.

Let a,b, and c be the length of the sides of a given triangle, and x the included angle between sides a and b, then the following relation applies:

$c^2=a^2+b^2-2ab\cos x$

Since we know the values of all three side lengths, we solve the equation for x:

$\displaystyle \cos x=\frac{a^2+b^2-c^2}{2ab}$

For the triangle ABC in the image, a=10, b=15, c=13, thus:

$\displaystyle \cos A=\frac{10^2+15^2-13^2}{2*10*15}$

$\displaystyle \cos A=\frac{156}{300}$

$\displaystyle \cos A=0.52$

Thus, A = 58.67°

For the right triangle of height h and hypotenuse 10, we use the sine ratio:

$\displaystyle \sin 58.67^\circ=\frac{h}{10}$

Solving for h:

$h = 10\sin 58.67^\circ$

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3 years ago

I need help, please

oksian1 [2.3K]

Yes, a rhombus is a rectangle if it has a similar shape of a square.Hope that helped

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3 years ago