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Vinil7 [7]
4 years ago
15

Find the exact value of cos a, given that sin a= 8/11 and

Mathematics
1 answer:
DerKrebs [107]4 years ago
7 0

Answer:

  cos(a) = (√57)/11

Step-by-step explanation:

cos(a) = √(1 -sin(a)²) = √(1 -(8/11)²) = √(57/121)

cos(a) = (√57)/11

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Suppose that each semester at a particular community college Manuel has to pay $1478 in tuition and $121 in fees.
Kamila [148]

Answer:

Step-by-step explanation:

<em>Let x be time, in semesters, remaining before Manuel graduates</em>.  We find that Manuel's expenses are:

$1478/semester in tuition, and

$121/semester in fees

1.  <u>x semesters remaining:  fees</u>

  Remaining cost for fees, y, is the product of the fee times the number of semesters, x:

y =($121/semester)*x

y = ($121)*x

2.  <u>x semesters remaining:  tuition</u>

  Remaining cost, y, is the product of the tuition (times the number of semesters, x.  

y = ($1478/semester)*x + ($121/semester)*x

y = ($1599)*x

3.  <u>x semesters remaining:  tuition and fees</u>

  Remaining cost, y, is the sum of the products of the tuition (times the number of semesters, and the fees (tix.  

y = ($1478/semester)*x + ($121/semester)*x

y = ($1599)*x

5 0
1 year ago
SOMEONEEEE HELLPP ME OUTTTT!!!!
Gnoma [55]
49 degree is the answer
tanø = 46/40
= 1.15
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4 0
3 years ago
A building across the street casts a shadow that is
tensa zangetsu [6.8K]

Answer:

The building is 36 feet tall.

Step-by-step explanation:

Divide 6 by 4 then multiply by 24.

3 0
3 years ago
Which value of a would make the expression 5 1/3 divided by 4/a equivalent to a whole number?
Leya [2.2K]

9514 1404 393

Answer:

  a = any positive multiple of 3

Step-by-step explanation:

You want ...

  (5 1/3)/(4/a) = whole number

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8 0
3 years ago
Which graph shows a positive correlation?
dem82 [27]
I think it’s 4rd graph because it’s increasing constantly
4 0
3 years ago
Read 2 more answers
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