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MrRa [10]
2 years ago
10

What is 75.65 rounded to the nearest whole number?​

Mathematics
2 answers:
Lady_Fox [76]2 years ago
7 0
It is 76 as the other person said, what I like to think to help me remember is five or more raise the score, 4 or less, let it rest
Nitella [24]2 years ago
5 0

Answer:

76

Step-by-step explanation:

if the number after period is bigger than 5.. then it's about the number higher than the number befor the period

sorry if u have trouble understanding what I said I'm really not good at explaining:)

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Find the missing angle in a triangle with the given sides.
fomenos

Answer:

579o

Step-by-step explanation:

61+ 62=123o

180-123= 57

J = 57o

6 0
3 years ago
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How many squares are in the circle below
Alinara [238K]

Answer:

66 squares are in the circle.

7 0
2 years ago
Read 2 more answers
Help with A and B plzzzz
Digiron [165]

a.) The height of the closet is 96 inches, and you want to have 4 rows, so you divide the total height 96 by 4

96 ÷ 4 = 24

So each cube organizer can be a height of 24 inches since it divides out evenly


b.) Each shoe box is 4 1/2 inches, because there are 3 boxes that are stacked on top of each other, you can multiply 4 1/2 by 3, or you can do 4 1/2 + 4 1/2 + 4 1/2.

4 1/2 + 4 1/2 + 4 1/2 = 12 3/2 = 13 1/2

The total height of the 3 boxes is 13 1/2


6 0
2 years ago
i have been trying to solve this compound and double angle question please help me find the answer to these question guys​
natali 33 [55]

Answer:

These type of questions are super tricky b/c you have to remember all the different versions of the identities, and then they put the question in some odd form,  I feel like this should land math professors in jail , for dishonesty , b/c it's really a form of "how tricky can I make a question and still have a way to solve it"   anyway,

Step-by-step explanation:

a)

next the question asks   1-cos 2A   and this is total abuse of notation.   the way this should be written is   1- cos( 2A)  so we know that the A is part of the cosine functions input... btw.. in any computer program,  it would never ever let you get away with that top form of the expression.  :/   anyway... I keep ranting.. huh... sorry  :P

1-cos(2A) is an odd form of the identity  1/2(1-cos(2A) = sin^{2}(A)  the 1/2 is missing but we can add that pretty easy, we just have to remember to take it out too. I usually forget to do that. and my professor marks me off completely,  totally wrong, but I just miss one small thing  :/  anyway....

our 1-cos(2A) needs the 1/2 added to it.  or if we move that 1/2 to the other side it looks like  2*sin^{2}(A)  = 1-cos(2A)  and this is that "odd" from of the identity that I was talking about.  

next let's deal with sin(2A)  it has an identity of  2 sin(A)cos(A) which is really nice for us b/c it will cancel out the 2 in then numerator for us, nice !

now our fraction looks like  [2* sin^{2}(A)] / 2 sin(A)cos(A)

so cancel out one of the sines

2*sin(A) / 2 cos(A)

cancel the 2s

Sin(A) / Cos(A) = Tan(A)

nice  it worked out  :P

b)

by the above that we just worked out, then

Tan(15) = Sin(15) / Cos(15)

I had to look up what sin of 15 is b/c it's not one of those special angles but it does have an exact form of

Sin(15) = (√3 - 1) / 2√2

Cos(A) = (√3 + 1) / 2√2

you can use rule of Cos(A-B) = Cos(A)Cos(B)+Sin(A)Sin(B) to get the above and a similar rule for Sin(A-B)

back to our problem,  the 2√2 will cancel out

then we have

Tan(15) =  (√3 - 1) /(√3 + 1)

in the form that is above that's exact, the roots could be approximated but i'll just leave that in the form that is exact.  Most math professors like that form.  

 

4 0
2 years ago
Last one please help meeeee
sergey [27]

Answer: Answer :Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

x

=

3

√

9

45

x

=

9

3

45

Decimal Form:

x

=

0.04622408

…

x

=

0.04622408

I hope this helps friend

Step-by-step explanation:

6 0
3 years ago
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