3 years ago

what is the exact value of cos(c+d), given sin c=24/25 for c in quadrant 2 and cos d=-3/4 for d in quadrant 3

Mathematics

1 answer:

maksim [4K]3 years ago

3 0

Answer:

1 3/100

21-24squareroot7/100

=24squareroot7/100

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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[5000* (1+0.125)]/12 =234.375, rounds up to $234.38

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3 years ago

Completely factor the expression 16t^3 - 50t^2 + 36t

NikAS [45]

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3 years ago

Becky can wash 15 dishes in 5 minutes. How many dishes will she be able to wash in 8 minutes?

bixtya [17]

Answer:

24 is correct answer

Step-by-step explanation:

its a 5:15 ratio, you are finding 8:x

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3 years ago

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valentinak56 [21]

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3 years ago

Solve: x + y = 7 3x - 2y = 11 By using Substituting method.

Salsk061 [2.6K]

$\large\underline{\sf{Solution-}}$

$\sf \longmapsto x + y = 7 \: \: - - - (i)$

$\sf \longmapsto 3x - 2y = 11 \: \: - - - (ii)$

By first equation,

$\sf \longmapsto x + y = 7$

$\sf \longmapsto x = 7 - y$

Now, we can find the original value of y.

$\sf \longmapsto 3x - 2y = 11$

$\sf \longmapsto 3(7 - y) - 2y = 11$

$\sf \longmapsto 21 - 3y - 2y = 11$

$\sf \longmapsto 21 - 5y = 11$

$\sf \longmapsto - 5y = 11 - 21$

$\sf \longmapsto - 5y = - 10$

$\sf \longmapsto y = \dfrac{ - 10}{ - 5}$

$\sf \longmapsto y = 2$

Now, we can find the original value of x.

$\sf \longmapsto x + y = 7$

$\sf \longmapsto x + 2 = 7$

$\sf \longmapsto x = 7 - 2$

$\sf \longmapsto x = 5$

Therefore, the values of x and y are 5 and 2 respectively.

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2 years ago

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