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2 years ago

In a bag there are 40 pieces of candy: 7

Mathematics

2 answers:

Sonja [21]2 years ago

8 0

The answer is 13/40

Slav-nsk [51]2 years ago

3 0

Answer:

37.5

Step-by-step explanation:

because if you calculte percent = to 37.5 that is why it sis the correct answer

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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

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

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2 years ago

If the simple interest on $4,000 for 10 years is $3,200,then what is the interest rate

STALIN [3.7K]

The answer will be 1.25

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2 years ago

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Bryan has 180 feet of fencing to fence off his rectangular garden. He will use the wall of his house as one side of the garden.

DiKsa [7]

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2 years ago

Find the x and y intercept of y= -2(x-3)^2+4

Neko [114]

Y intercept occurs when x = o so it is -2(0-3) + 4 = -2

x intercepts:-

-2(x - 3)^2 + 4 = 0

(x - 3)^2 = -4/-2 = 2

x - 3 = +/- sqrt2

x = 3 + sqrt2 and 3- sqrt2

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3 years ago

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boyakko [2]

Answer:

Step-by-step explanation:

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1 year ago