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Artemon [7]
3 years ago
5

Which of the following expressions has a value of 3? Select all that apply. -6 ÷ -2 4 - (-1) (-1)(-3) (-2) - 1 15 ÷ -5 4 + 1

Mathematics
2 answers:
Luden [163]3 years ago
6 0
1. -6 ÷ -2 = 3
(Negative divided by a Negative = Positive)

3.(-1)(-3) = 3
(Same rule as division)

As far as im concerned the rest came out to be negative answers or not even 3
Elena-2011 [213]3 years ago
4 0

Answer:

-6 ÷ -2 and  (-1)(-3)

Step-by-step explanation:

we need to find the expression that gives the value of 3

-6 ÷ -2 , \frac{-6}{-2} =3 is 3 because negative and negative is positive

4 - (-1), 4 - (-1)=4+1=5 which is not equal to 3

(-1)(-3),(-1)(-3)=3 negative times negative is positive

(-2) - 1, (-2) - 1=-3 which is not equal to 3

15 ÷ -5 ,\frac{15}{-5} =-3, not equal to 3

4 + 1, 4+1= 5

-6 ÷ -2 and  (-1)(-3) gives us the value of 3

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Answer:

<em>Answer: choice D.</em>

Step-by-step explanation:

<u>Trigonometric Functions</u>

We need to recall some properties and definitions of the trigonometric functions.

\displaystyle \tan \theta=\frac{\sin\theta}{\cos\theta}

\displaystyle \sec \theta=\frac{1}{\cos\theta}

We need to simplify the following expression:

5\sin\theta\sec\theta

Substituting the identity for the secant:

\displaystyle 5\sin\theta\sec\theta=5\sin\theta.\frac{1}{\cos\theta}

Operating:

\displaystyle 5\sin\theta\sec\theta=5\frac{\sin\theta}{\cos\theta}

Substituting the definition of the tangent:

\displaystyle 5\sin\theta\sec\theta=5\tan\theta

Correct choice D.

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2 years ago
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fenix001 [56]
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6 0
3 years ago
I have one more question before im done so please help and have a good day.
3241004551 [841]

Answer:

  • See below

Step-by-step explanation:

<h3>Part A</h3>

<u>Solve the equation:</u>

  • 6x² + 48x + 120 = 0
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The left side is positive and right side is negative so no solution

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6 0
2 years ago
What is an explicit formula for the geometric sequence -64,16,-4,1,... where the first term should be f(1).
nirvana33 [79]

Answer:

a_{n} = -64(-\frac{1}{4})^{n-1}

it seems like the first term is -64, so lets write the formula accordingly:

a_n = a1(r)^(n-1)

where 'n' is the number of terms

a1 is the first term of the sequence

'r' is the ratio

the ratio is -\frac{1}{4} because -64 * -\frac{1}{4} = 16 and so on...

the explicit formula is :

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7 0
2 years ago
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Decimal form 91.2
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5
4 0
3 years ago
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