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3 years ago

For a school fundraiser 10 students sold a total of 90 boxes of cookies which can be calculated from this information

Mathematics

1 answer:

zvonat [6]3 years ago

4 0

Answer:

90 ÷ 10 = 9 boxes per student

Step-by-step explanation:

90 ÷ 10 = 9 boxes per student

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Determine the type of triangle that is drawn below. ASAP PLZZ!!!!!

beks73 [17]

Answer:

Isosceles right

Step-by-step explanation:

two same side and there's a right angle

8 0

2 years ago

How do I verify this identity? I know you should write sin2a as sin(a+a).

Kisachek [45]

SOLUTION

Given the question in the image, the following are the solution steps to verify the identity

STEP 1: Write the given identity

$\sin 2\alpha=2\sin \alpha\cos \alpha$

STEP 2: Verify the identity

$\begin{gathered} \sin 2\alpha=2\sin \alpha\cos \alpha \\ \text{Consider the left hand side of the above trigonometry identity.} \\ \text{That is, }\sin 2\alpha\text{.} \\ \text{ Rewrite }\sin 2\alpha\text{ as }\sin (\alpha+a) \\ \text{ It is known that }\sin (a+b)=\sin (a)\cos b+\cos (a)\sin (b) \\ U\sin g\text{ this statement above, we have;} \\ \sin (\alpha+a)=\sin a\cos \alpha+\cos a\sin \alpha \\ \text{It is known that }xy+yx=xy+xy=2\times xy=2xy \\ U\sin g\text{ this statement above, we have;} \\ \sin a\cos \alpha+\cos a\sin \alpha=\sin a\cos \alpha+\sin \alpha\cos \alpha=2\times\sin \alpha\cos \alpha=2\sin \alpha\cos \alpha \\ \text{Hence, }\sin 2\alpha=2\sin \alpha\cos \alpha \end{gathered}$

The verification of the identity is as seen above.

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11 months ago

Choose the example of an inverse relationship

iren2701 [21]

The mathematical explanation is that if f(x) = x + 2 and y (x) = x -2, the relationship is inverse. Also, f(x) = -x and f(x) = 1/x to eliminate a zero value.

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3 years ago

Find the value of x in the parallelogram below

aleksley [76]

68° + x = 180°;

x = 180° - 68° = 112°.

Answer: 112°.

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2 years ago

Joseph wants to buy a new tennis

ludmilkaskok [199]

Answer:

The shop made a profit about $40.

Step-by-step explanation:

Now, According to the question We know that :

The shop marked the $200 price up by 60%.

60% of $200 is = $120.

Now, the price is = $320 because, 200 + 120 = 320.

Joseph bought the tennis racket at 25% off.

25% of $320 is = $80.

Now, the discount price is = $240 Because, 320 - 80 = 240.

So, Joseph bought the racket for = $240.

Now we know that the original price from the factory was $200.

Joseph bought it for $240.

So, the shop made a profit of $40.

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3 years ago