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Lina20 [59]
3 years ago
10

Please help me with this problem

Mathematics
2 answers:
mixer [17]3 years ago
5 0

Answer:

1

Step-by-step explanation:

sin x = ½

x = π/6 = 30°

then

cos (x -π/6) = cos 0° = 1

alina1380 [7]3 years ago
3 0

Answer:

1

Explanation:

According to the Unit Circle, <em>sin</em> π\6 is ½, so we plug this into the cosine function to get this:

<em>cos</em> π\6 - π\6 → <em>cos</em> 0 >> 1

If you are ever in need of assistance, do not hesitate to let me know by subscribing to my You-Tube channel [USERNAME: MATHEMATICS WIZARD], and as always, I am joyous to assist anyone at any time.

** I do not have Unit Circle video uploaded yet, but if I need to, just notify me in the comments or on of course, You-Tube.

*** Plus, we need to make sure that the x-value falls in between 0 and π\2, which it did, so no need to worry.

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3 years ago
A building 190 feet tall casts a 90 foot long shadow. if a person stands at the end of the shadow and looks up to the top of the
Ivahew [28]

Answer:

About 64.65 degrees

Step-by-step explanation:

\tan(x) =  \frac{190}{90}

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5 0
2 years ago
a shop sell 200 chocolate ; vanilla and strawberry ice cream 45% of the ice cream sold are vanilla and 35% are strawberry. how m
Oksanka [162]

The number of chocolate ice creams sold is 50.

<h3>How many chocolate ice creams are sold?​</h3>

There exist three kinds of flavors.

45% of the ice creams exist as vanilla

30% of the ice creams exist as strawberry

x percent of the ice creams exist chocolate

The total amount of ice cream exists 200 which equals 100%.

Therefore,

45% + 30% + x = 100%

To estimate the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to estimate the result.

Solving for x, then the value of x is,

x = 25%

Then the number of chocolate ice creams are:

25%(200) = 50.

The number of chocolate ice creams sold is 50.

To learn more about the value of x refer to:

brainly.com/question/9965443

#SPJ2

6 0
2 years ago
amir lent Rs. 600 to hameed for 2 years and Rs. 150 to aman for 4 year and received altogether from both Rs. 90 as simple intere
aniked [119]

Interest = Pin = principal * interest rate * number of years

Let interest rate be i, then
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1200i+600i = 90
i=90/(1200+600)=90/1800=1/20=0.05 or 5%

8 0
3 years ago
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