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Oksi-84 [34.3K]
3 years ago
7

Write down the exact value of: a) cos 90 b) sin 90 c) tan 0

Mathematics
2 answers:
Anna007 [38]3 years ago
5 0

Answer:

\cos(90)  = 0 \\  \sin(90)  = 1 \\  \tan(0)  = 0

viktelen [127]3 years ago
3 0

Answer:

The exact value of

cos90 is 0

sin90 is 1

tan90 is indeterminate.

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What is the area of the parallelogram below? Use the formula a=bh
Nana76 [90]
Where where is the formula you didn't even post a picture?
6 0
3 years ago
In a Gallup poll of randomly selected adults, 66% said that they worry about identity theft. For a group of 1013 adults, the mea
Kazeer [188]

Answer:

Mean = 344

Step-by-step explanation:

Given

Population =  1013

Let p represents the proportion of those who worry about identity theft;

p = 66\%

Required

Mean of those who do not worry about identity theft

First, the proportion of those who do not worry, has to be calculated;

Represent this with q

In probability;

p + q = 1

Make q the subject of formula

q = 1 - p

Substitute p = 66\%

q = 1 - 66\%

Convert percentage to fraction

q = 1 - 0.66

q = 0.34

Now, the mean can be calculated using:

Mean = nq

Where n represents the population

Mean = 1013 * 0.34

Mean = 344.42

Mean = 344 (Approximated)

3 0
3 years ago
Tamika has two bags of trail mix. Each has a combination of 60 pieces of fruit and nuts. Ratio of fruit to nuts in the first bag
madam [21]

Answer:

the second bag because the ratio is greater

Step-by-step explanation:

Bag1

fruits 3 : 5 nuts so 3+5=8 and 60/8=7.5 but 7.5*3=22.5

ratio is 3/5=0.428

Bag2

fruits 7 : 10 nuts so 10+7=17 and (60/17)*7 ≈ 24.7

ratio is 7/10=0.7

4 0
3 years ago
Read 2 more answers
Help fast please<br> i have no idea what to do in math so i need help
siniylev [52]

Answer:

see the attachment photo!

5 0
2 years ago
3
kari74 [83]

The equations to represent the relationship are ƒx3/5=4 4/5 and 4 4/5 divided 3/5 =f

<h3>Ratio and proportion</h3>

Fractions are written as a ratio of two integers. For instance a/b is a fraction.

If Anastacio distributed 4 4/5 kg of seed among several bird feeders and put 3/5 kg of seed in each feeder, the expression that represents the number of bird feeders that Anastacio filled is given as;

Number of bird feeder = 4 4/5 ÷ 3/5

f = 4 4/5 ÷ 3/5

Multiply both sides by

f * 3/5 = 4 4/5   ÷ 3/5 * 3/5

f * 3/5 = 4 4/5

Hence the equations to represent the relationship are ƒx3/5=4 4/5 and 4 4/5 divided 3/5 =f

Learn more on division of fraction here: brainly.com/question/407943

#SPJ1

3 0
1 year ago
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