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ddd [48]
3 years ago
14

Brand A costs $46.29, and brand B costs $42.8. what is the difference in the cost of brand A and B.

Mathematics
1 answer:
allsm [11]3 years ago
8 0
Brand A - Brand B = the difference

$46.29 - $42.8 = $3.49

Answer: $3.49
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Let O be an angle in quadrant III such that cos 0 = -2/5 Find the exact values of csco and tan 0.​
vivado [14]

well, we know that θ is in the III Quadrant, where the sine is negative and the cosine is negative as well, or if you wish, where "x" as well as "y" are both negative, now, the hypotenuse or radius of the circle is just a distance amount, so is never negative, so in the equation of cos(θ) = - (2/5), the negative must be the adjacent side, thus

cos(\theta)=\cfrac{\stackrel{adjacent}{-2}}{\underset{hypotenuse}{5}}\qquad \textit{let's find the \underline{opposite side}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \sqrt{c^2-a^2}=b \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ \pm\sqrt{5^2 - (-2)^2}=b\implies \pm\sqrt{25-4}\implies \pm\sqrt{21}=b\implies \stackrel{III~Quadrant}{-\sqrt{21}=b}

\dotfill\\\\ csc(\theta)\implies \cfrac{\stackrel{hypotenuse}{5}}{\underset{opposite}{-\sqrt{21}}}\implies \stackrel{\textit{rationalizing the denominator}}{-\cfrac{5}{\sqrt{21}}\cdot \cfrac{\sqrt{21}}{\sqrt{21}}\implies -\cfrac{5\sqrt{21}}{21}} \\\\\\ tan(\theta)=\cfrac{\stackrel{opposite}{-\sqrt{21}}}{\underset{adjacent}{-2}}\implies tan(\theta)=\cfrac{\sqrt{21}}{2}

4 0
2 years ago
Starting at sea level, a submarine descended at a constant rate to a depth of - 5/6 mile relative to sea level in 3/4 minutes. T
Nostrana [21]

Answer: the many shall not be televised

Step-by-step explanation:

6 0
2 years ago
What is the intersection of the three sets: A = {0, 2, 3, 6, 8}, B = {2, 3, 6, 8, 9}, and C = {1, 2, 4, 8, 9}? A. {2, 8, 9} B. {
Ugo [173]

Answer:

{2,8}

Step-by-step explanation:

This is the same thing as asking what element (in this case what number) is in all 3 sets.

0 isn't in all 3 sets because it isn't in B.

2 is in all 3 sets

3 isn't because it isn't in C

4 isn't in A.

6 isn't in C.

8 is in all 3 sets.

9 isn't in A

So the elements that are in the 3 sets are {2,8}.

8 0
3 years ago
Read 2 more answers
The fastest that a seahorse can travel is 2640 feet per hour.what is its top speed in miles per hour
miv72 [106K]

Answer:

½ mph

Step-by-step explanation:

1 mi. = 5280 ft.

2640⁄5280 = ½

I am joyous to assist you anytime.

4 0
3 years ago
Which of the following statements exemplifies a null hypothesis?
elixir [45]

Answer:

(A) there is no relationship between gender and jury verdicts

Step-by-step explanation:

The null hypothesis is the one in which we assume that there are no relationship between measures.

In this exercise, the only option that assume no relationship between measures(gender and jury verdicts) is

(A) there is no relationship between gender and jury verdicts

5 0
3 years ago
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