3 years ago

Question 11

Mathematics

1 answer:

Black_prince [1.1K]3 years ago

8 0

Answer:

Step-by-step explanation:

Because the cost per pie is less.

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10 1/2

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The derivative of a function f(x)=2-7sinx is--------

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d/dx (f(x))= -7cos(x)

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Assume the value continues increasing at the

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There’s no question or problem to this

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find the slooe word problem. A friend gifts you a pet rock collection. You decide to grow the collection by 10 pet rocks every m

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2 years ago

Find the values of x and y

zhuklara [117]

You can use a tangent:

$tangent=\dfrac{opposite}{adjacent}$

We have opposite = 17 and adjacent = x.

$\tan30^o=\dfrac{\sqrt3}{3}$

substitute:

$\dfrac{17}{x}=\dfrac{\sqrt3}{3}$ cross multiply

$x\sqrt3=(3)(17)$ multiply both sides by √3

$x(\sqrt3)(\sqrt3)=51\sqrt3$

$3x=51\sqrt3$ divide both sides by 3

$x=17\sqrt3$

Use the Pythagorean theorem:

$y^2=(17\sqrt3)^2+17^2\\\\y^2=289(\sqrt3)^2+289\\\\y^2=289\cdot3+289\\\\y^2=867+289\\\\y^2=1156\to y=\sqrt{1156}\\\\y=34$

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Other method.

$30^o-60^o-90^o$ triangle.

The sides are in the ratio $1:2:\sqrt3\to17:y:x$

Therefore

$17:(2\cdot17):(17\sqrt3)\to17:34:17\sqrt3\to x=34,\ y=17\sqrt3$

4 0

4 years ago