4 years ago

If sin 150° is 1/2 find sin75°

Mathematics

1 answer:

lisabon 2012 [21]4 years ago

7 0

Answer:

use a calculator and enter those numbers then press SIN

Step-by-step explanation:

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A picture frame has a perimeter of 100 cm. Its width is 4 cm less than twice its length. What is the width of the picture

katrin [286]

Answer:

The correct answer is option 2: 32 cm

Step-by-step explanation:

Let l be the length of the picture frame and w be the width

Then according to given statements, the system of equations will be

$2l+2w = 100\ \ \ Eqn\ 1\\w = 2l-4\ \ \ Eqn\ 2$

Putting w = 2l-4 in equation 1

$2l+2(2l-4) = 100\\2l+4l-8=100\\6l-8 = 100\\6l = 100+8\\6l=108\\\frac{6l}{6}=\frac{108}{6}\\l = 18$

Putting the value of l in equation 2

$w = 2(18)-4\\w = 36-4\\w = 32$

The width is 32 cm

Hence,

The correct answer is option 2: 32 cm

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3 years ago

Which of the following expressions is not equivalent to the others 10/-5 -10/5 -10/-5 -(10/5)

Scilla [17]

Answer:

-10/-5 (the third option)

Step-by-step explanation:

all of the others are negative, but since there are two negative signs on this fraction, it becomes positive

hope this helped/made sense and have a great day!

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2 years ago

Which statements are true about exponential functions? Check all that apply

dybincka [34]

The answers are the base represents the multlicative rate of change and the domain is all real numbers.

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4 years ago

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What is 4.937 rounded to the nearest hundredth?<br> A) 4.90 <br> B) 4.93 <br> C) 4.94 <br> D) 5.00

bearhunter [10]

Answer:

Step-by-step explanation:

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4 years ago

Read 2 more answers

Plz help i dont want to fail ill mark brainliest

g100num [7]

Answer:

Step-by-step explanation:

If you see the graph you can see that the first 1 hour it decreases 2 cm

PLZ MARK ME BRAINLIEST

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3 years ago