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4 years ago

If x = -12, then solve: -X = (Please help me need answer by 1pm)

Mathematics

2 answers:

telo118 [61]4 years ago

7 0

Answer:

-x = 12

Step-by-step explanation:

x = -12

if you multiply both sides of the equation by -1, you get

-1x = -12 * -1

-x = 12

Over [174]4 years ago

6 0

Answer:

Step-by-step explanation:

So what we know is that x is equal to negative 12. To make this easier you can say that -x is the same as -1 times x like shown below,

-1 × $x$ is the same as -X

We can replace the x with -12 and a negative times a negative is a positive so the answer would be 12.

If you want me to explain it more let me know, but hopefully this helps and have a great day!

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Given csc(A) = 60/16 and that angle A is in Quadrant I, find the exact value of sec A in simplest radical form using a rational

fiasKO [112]

Answer:

$\frac{15 \sqrt{209} }{209}$

Step-by-step explanation:

Objective: Understand and work with trig identies.

Recall multiple trig identies and manipulate them to get from cosecant to secant.

Given

$\csc(a) = \frac{60}{16}$

Apply reciprocal identity csc a = 1/sin a.

$\sin(a) = \frac{16}{60}$

Apply pythagorean identity to find cos a.

$( \frac{16}{60}) {}^{2} + \cos(x) {}^{2} = 1$

$\frac{256}{3600} + \cos(x) {}^{2} = 1$

$\cos(x) {}^{2} = \frac{3600}{3600} - \frac{256}{3600}$

We can simplify both expression

$\cos(x) {}^{2} = \frac{225}{225} - \frac{16}{225}$

$\cos(x) = \frac{ \sqrt{209} }{15}$

Cosine is positve on quadrant 1 so that cos(a)

Apply reciprocal identity sec a= 1/ cos a.

The answer is

$\sec(a) = \frac{15}{ \sqrt{209} }$

Rationalize the denominator.

$\frac{15}{ \sqrt{209} } \times \frac{ \sqrt{209} }{ \sqrt{209} } = \frac{15 \sqrt{209} }{209}$

3 0

3 years ago

An arithmetic sequence is - 1/2 , 1, 5/2 , 4, 11/2 , 7, ... . What is the general term of the sequence?

olasank [31]

Answer:

ADD 3/2

Step-by-step explanation:

-1/2 + 3/2 = 1

1+3/2= 1/1+3/2 = 2/2 + 3/2 =5/2

5/2 +3/2 = 8/2 = 4

4+3/2 = 8/2 +3/2 = 11/2

11/2 +3/2 =14/2 =7

4 0

4 years ago

I’ll give points + brainalist for the correct answer (:

Harlamova29_29 [7]

Answer:

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6 0

3 years ago

Read 2 more answers

A rectangle is measured 6.5 cm by 7.8 cm .

mote1985 [20]

Answer:

3.24%

Step-by-step explanation:

Percentage error =[ (|calculated value - actual value) / actual value] x 100

calculated area = length x width

6.5 x 7.8 = 50.7

[(|50.7 - 52.4|] / 52.4] x 100 = 3,24

7 0

3 years ago

Find the next two numbers in the sequence 5,2,-1,…

Nataly_w [17]

Answer:

The answer is (-4) and (-7).

Step-by-step explanation:

<h3><u>Given</u>;</h3>

a₁ = 5
a₂ = 2
a₃ = (-1)

a₄ = ?
a₅ = ?

<h3><u>Formula</u>;</h3>

aₙ = a + (n – 1) × d

Now, for common difference (d)

d = a₂ – a₁ = 2 – 5 = -3

d = a₃ – a₂ = (-1) – 2 = -3

Here, common difference is same everywhere.

So, for fourth term or n = 4

aₙ = a + (n – 1) × d

a₄ = 5 + (4 – 1) × (-3)

a₄ = 5 + 3 × (-3)

a₄ = 5 – 9

a₄ = -4

Then, for fifth term or n = 5

a₅ = 5 + (5 – 1) × (-3)

a₅ = 5 + 4 × (-3)

a₅ = 5 – 12

a₅ = -7

Thus, The fourth term is (-4) and fifth term is (-7).

5 0

2 years ago