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3 years ago

Calculate the area of this diagram

Mathematics

1 answer:

cricket20 [7]3 years ago

8 0

$A=\frac{1}{2}\cdot a\cdot b\cdot \sin\angle AB\\\\A=\frac{1}{2}\cdot6\cdot6\cdot\sin38^\circ\\\\A=18\cdot0.616\\\\\boxed{A=11.0819}$

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A carpenter is constructing staircase in a house. The distance from the floor to the basement is 10.8 feet. The staircase will b

konstantin123 [22]

Answer:

$\theta = 40.59^\circ$

Step-by-step explanation:

Given

The question is illustrated with the attached image

Required

Find $\theta$

To do this, we use sine formula

i.e.

$\sin(\theta) = \frac{Opposite}{Hypotenuse}$

So, we have:

$\sin(\theta) = \frac{10.8}{16.6}$

$\sin(\theta) = 0.6506$

Take arc sin

$\theta = \sin^{-1}(0.6506)$

$\theta = 40.59^\circ$

4 0

2 years ago

Define a set x of numbers as follows. b. 2 ∈ x. r1. if x ∈ x, so is 10x.

jeka57 [31]

B is the correct anse]wer

6 0

3 years ago

Read 2 more answers

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vredina [299]

Distance from point C to point D: same x coordinate, 4-1=3; 3 units
Distance form point D to F: same y coordinate, 5-2=3
Perimeter is the measure of all sides
3+3+3+3=12
Solution: A. 12 units

8 0

3 years ago

Equivalent ratios to 1:5? Answers: 3:18, 3:15, 2:10, 4:22, 4:16. Help

snow_lady [41]

2:10 is equivalent. To get the answer you multiply 1 & 2 by their LCM (least common multiple) , which is 2, and that's how you get the answer, and to check to see if it's right just divide by 2 but if you know multiples of 1 and 5 then you could've easily looked at the answer choices to find your answer.

hopefully this helps

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3 years ago

For homework Tina is asked to write down the opposite value for each number listed which comparison did Tina write incorrectly

katovenus [111]

In writing down the opposite value of each number, the comparison Tina wrote incorrectly is: Comparison X

Recall:

Opposite values of a number are numbers that are of the same distance from point zero on a number line.

For example, if a is a number, the opposite of a is -a. Or if -3 is a number, the opposite of -3 is 3 because -3 and 3 are both 3 units away from point zero on a number line.

Thus, Tina's comparison is given in the diagram attached below.

The comparison labelled X is incorrect because -(-9) = 9. Opposite of 9 is -9.

Therefore, in writing down the opposite value of each number, the comparison Tina wrote incorrectly is: Comparison X

Learn more about opposite value of a number on:

brainly.com/question/12427791

7 0

2 years ago

Calculate the area￼ of this diagram

Calculate the area of this diagram