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3 years ago

[ tan2 θ ] – [( sec θ – 1 )( sec θ + 1 )

Mathematics

1 answer:

Afina-wow [57]3 years ago

8 0

Answer: tan(2θ)−sec2(θ)−sec(θ)

Step-by-step explanation: Simplify Each Term

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What is 2 1/8 take away 1/2

goblinko [34]

The equation is $2\frac{1}{8} - \frac{1}{2}$ .

1/2 is equivalent to 4/8, and 2 1/8 is equal to 17/8. (two full sets of 8 + 1 = 8 + 8 + 1, or 17)

The new equation is $\frac{17}{8} -\frac{4}{8}$ . Subtract the numerators.

17 - 4 = 13 or 13/8

The improper fraction $\frac{13}{8}$ simplifies to $1\frac{5}{8}$ .

<h2>Answer:</h2>

$1\frac{5}{8}$

Hope this helps :)

5 0

3 years ago

Answer quick please: Evaluate the expression...I forgot how to do the negatives..and I literally was just doing them yesterday..

nekit [7.7K]

(7.5 x 10^-3) + (5.8 x 10^-3 )

= (7.5 x 1/1000) + (5.8 x 1/1000) OR decimal form --> (7.5 x 0.001) +(5.8 x 0.001)

0.0075 + 0.0058 = 3/400+29/5000

0.0133 = 133/10000

Hope it helps.

8 0

4 years ago

A house has decreased in value by 34% since it was purchased. If the current value is $231,000, what was the value when it was p

GenaCL600 [577]

Answer:

309,540

Step-by-step explanation:

231,000 + 34%

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3 years ago

Sally works as an estimator for G&J Electric. She has determined that 550 feet of electrical cable will be needed to wire a

weqwewe [10]

Answer:

Step-by-step explanation:2

7 0

3 years ago

Read 2 more answers

El área de la región rectangular es 4400cm2. Calcula el valor de m

Roman55 [17]

Answer:

m=52.17

Step-by-step explanation:

<em>The complete question in Spanish is</em>

El área de la región rectangular es 4400 cm2. Calcular el valor de m

largo :2m-20

ancho: m

<em>The question in English is</em>

The area of the rectangular region is 4400 cm2. Calculate the value of m

length :2m-20

width: m

we know that

The area of a rectangle is equal to

$A=LW$

where

L is the length

W is the width

we have

$A=4,400\ cm^2$

$L=(2m-20)\ cm$

$W=m\ cm$

substitute in the formula the given values and solve for m

$4,400=(2m-20)m$

Distribute in the right side

$4,400=2m^2-20m$

$2m^2-20m-4,400=0$

Solve the quadratic equation by graphing

Using a graphing tool

The solution is m=52.17 (the positive value is the solution)

see the attached figure

8 0

3 years ago