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3 years ago

Which is cheaper per deal A) $63 for an 18-issue subscription B) $72 for an 24-issue subscription

Mathematics

2 answers:

frozen [14]3 years ago

7 0

The correct answer is b

Alenkinab [10]3 years ago

6 0

B) because a you pay less and get less b you get more and pay more

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A solution which satisfies the original radical equation is called

Anika [276]

Extraneous Solutions maybe?

6 0

3 years ago

What is d in d • 24= -12

Firdavs [7]

Answer:

The answer is (-1/2)

Step-by-step explanation:

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

d • 24 = (-12)

The value of d

So,

24d = -12

Divide both side by 24 we get,

24d/24 = -12/24

d = -1/2

Thus, The value of d is (-1/2)

3 0

2 years ago

Read 2 more answers

Sin(-180° + θ) = ________

Svet_ta [14]

Answer:

$\sin\left(-180^o+\theta\right)=-\sin\left(\theta\right)$

Step-by-step explanation:

We need to find the value of $\sin(-180^o+ \theta)$

So let's apply formula

$\sin\left(A+B\right)=\sin\left(A\right)\cos\left(B\right)+\sin\left(B\right)\cos\left(A\right)$

$\sin\left(-180^o+\theta\right)=\sin\left(-180^o\right)\cos\left(\theta\right)+\sin\left(\theta\right)\cos\left(-180^o\right)$

$\sin\left(-180^o+\theta\right)=0\cdot\cos\left(\theta\right)+\sin\left(\theta\right)\cdot\left(-1\right)$

$\sin\left(-180^o+\theta\right)=0-\sin\left(\theta\right)$

$\sin\left(-180^o+\theta\right)=-\sin\left(\theta\right)$

8 0

3 years ago

Felix reported that the coldest day on record for his town was five times

ioda

Answer:

-20º C

Step-by-step explanation:

-4*5=-20

5 0

2 years ago

Determine weather the statement is true or false. Justify your answer

topjm [15]

$\begin{gathered} \cos (-\frac{7\pi}{2})=\cos (\pi+\frac{\pi}{2}) \\ \cos (-\frac{7\pi}{2})=\cos (\frac{3\pi}{2}) \end{gathered}$

As we know:

$\begin{gathered} \cos (x)=0 \\ for \\ x=\pi n-\frac{\pi}{2} \\ n\in Z \end{gathered}$

For:

$\begin{gathered} n=2 \\ x=2\pi-\frac{\pi}{2}=\frac{3\pi}{2} \\ for \\ n=-3 \\ x=-3\pi-\frac{\pi}{2}=-\frac{7\pi}{2} \end{gathered}$

Therefore:

$\begin{gathered} \cos (-\frac{7\pi}{2})=0 \\ and \\ \cos (\frac{3\pi}{2})=0 \\ so\colon \\ 0=0 \\ This_{\text{ }}is_{\text{ }}true \end{gathered}$

Therefore, the statement is true

7 0

1 year ago