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3 years ago

Ismail tried to prove that sin(θ) = cos(90°− θ) using the following diagram. His proof is not correct.

Mathematics

1 answer:

Anton [14]3 years ago

5 0

Answer:

C. Ismail used the wrong sides in his ratio for cos (90 - θ)

Step-by-step explanation:

<u>All steps correct apart from:</u>

cos (90° - θ) = AC/BC

<u>It should be</u>

cos (90° - θ) = AB/BC

Correct choice is C

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Schach [20]

The data given on the table about the ten participants in the health study shows that B. The post-run mean and median are the same value.

This can be found as:

= (87 + 95 + 96 + 101 + 110 + 104 + 100 + 101 + 90 + 96) / 10

= 98

<h3>What is the post run median?</h3>

First order the pulses from smallest to largest:

= 87, 90, 95, 96, 96, 100, 101, 101, 104, 110

The two digits in the middle are:

96 and 100

The median will be:

= (96 + 100) / 10

= 98

In conclusion, option B is correct.

Find out more on the median at brainly.com/question/396397.

8 0

2 years ago

A sandbox in the shape of a rectangular prism is 2 feet deep and 6 feet wide. Filled to the top it can hold 72 cubic feet of san

Sedbober [7]

Answer:

height=6 ft

Step-by-step explanation:

-The volume of a rectangular prism is given by the formula:

$V=lwh$

#We make h the subject of the formula the solve for it:

$V=lwh\\\\\frac{V}{lw}=h\\\\\therefore h=\frac{V}{lw}$

#Substitute to solve for height:

$h=\frac{V}{lw}\\\\=\frac{72}{2\times 6}\\\\=6\ ft$

Hence, the prism has a height of 6 ft.

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3 years ago

Need help please real fast will give brainlist

viktelen [127]

Answer:

-2

Step-by-step explanation:

Hope it helps

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3 years ago

2. The picture shows a feeding trough that is shaped like a right prism.

Nina [5.8K]

Answer:

Step-by-step explanation:

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3 years ago

Which expression is correct?"The square of the sum of a number and 5, added to 3, then squared"

brilliants [131]

Answer:

5-n squared+3 squared

Step-by-step explanation:

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2 years ago