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marin [14]
3 years ago
10

The value of cosec35°- sec55° will be​

Mathematics
1 answer:
zzz [600]3 years ago
6 0

Answer:

0

Step-by-step explanation:

1/cosecx = sin(x)

cosec(x) = 1/sin(x)

1/sec(x) = cos(x)

sec(x) = 1/cos(x)

1/sin(35) - 1/cos(55)

1.74344 - 1.7344  isn't that something?

0

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What is the solution to the equation One-third (x minus 2) = one-fifth (x + 4) + 2? x = 12 x = 14 x = 16 x = 26
Elena L [17]

Answer:

x = 26

Step-by-step explanation:

Given

\frac{1}{3} (x - 2) = \frac{1}{5} (x + 4) + 2

Multiply through by 15 to clear the fractions

5(x - 2) =3(x + 4) + 30 ← distribute and simplify both sides

5x - 10 = 3x + 12 + 30, that is

5x - 10 = 3x + 42 ( subtract 3x from both sides )

2x - 10 = 42 ( add 10 to both sides )

2x = 52 ( divide both sides by 2 )

x = 26

3 0
3 years ago
7 1/6 times 3/4 is??
Paladinen [302]

Answer:

7\frac{1}{8}

Step-by-step explanation:

Multiply across.

(7\frac{1}{6})(\frac{3}{4})=7\frac{3}{24}

Then Simplify.

7\frac{3}{24}=7\frac{1}{8}

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Given the values in the table on the left come from
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–3.2 < x < –2.4

1.6 < x < 2.4

7 0
3 years ago
Is a three-digt whole number
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5 0
3 years ago
mike, dave and john worked for a total of 56 hours. Dave worked 6 more than 4 times as many hours as mike. John worked 6 less th
Daniel [21]

Answer:

1. Dave worked for 34 hours.

2. Perimeter of the rectangle is 172 cm.

Step-by-step explanation:

1. Determination of the hours Dave worked.

Let D represent Dave.

Let M represent Mike.

Let J represent John.

Tota time worked by Dave, Mike and John is 56 hours. This can be written as:

D + M + J = 56 ..... (1)

Dave worked 6 more than 4 times as many hours as Mike. This can written as:

D = 6 + 4M .....(2)

John worked 6 less than 3 times as many hours as Mike. This can be written as:

J = 3M – 6 ........ (3)

Substituting the value of F and J into equation 1, we have:

D + M + J = 56

D = 6 + 4M

J = 3M – 6

6 + 4M + M + 3M – 6 = 56

6 – 6 + 4M + M + 3M = 56

8M = 56

Divide both side by 8

M = 56/8

M = 7

Substitute the value of M into equation (2) to obtain the value of D.

D = 6 + 4M

M = 7

D = 6 + 4(7)

D = 6 + 28

D = 34

Therefore, Dave worked for 34 hours .

2. Determination of the perimeter.

Length (L) = 64 cm

Width (W) = 22 cm

Perimeter (P) =?

P = 2(L + W)

P = 2 (64 + 22)

P = 2 (86)

P = 172 cm

Therefore, the perimeter of the rectangle is 172 cm

6 0
3 years ago
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