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Vlada [557]
3 years ago
6

Maya is showing her work in simplifying (5.2 − 4.5) − 5.5 + 4.8. Identify any error in her work or reasoning. (5 points)

Mathematics
2 answers:
PolarNik [594]3 years ago
8 0
She wrote identity instead of associative in Step 2.
Nady [450]3 years ago
7 0

Hello,

The correct answer is D) She wrote identity instead of associative in Step 2.

Hope this helps!!!! :)

**(Vanessa)**

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(07.01 LC)
Svetradugi [14.3K]

Answer:

1

Step-by-step explanation:

Because 2 times 1 is 2 plus 1 is equal to 3

3 0
3 years ago
Find the measure of each side indicated round to the nearest 10th
earnstyle [38]

Answer:

20) 30°; 21) 21,1; 22) 6,2

Step-by-step explanation:

For the first image, you have to do <em>csc</em><em>⁻</em><em>¹</em><em> </em><em>2</em><em> </em>[OR <em>sin</em><em>⁻</em><em>¹</em><em> </em><em>½</em>] because you are solving for an angle measure. When evaluated, you get 30°.

For the second image, you have to do <em>13sec</em><em> </em><em>52</em><em>°</em><em> </em><em>=</em><em> </em><em>x</em><em> </em>[OR <em>13\</em><em>cos</em><em> </em><em>52</em><em>°</em><em> </em><em>= x</em>]. When evaluated, you get an approximate measure of 21,1.

For the third image, you have to do <em>6csc</em><em> </em><em>75</em><em>°</em><em> </em><em>=</em><em> </em><em>x</em><em> </em>[OR <em>6</em><em>\</em><em>sin</em><em> </em><em>75</em><em>°</em><em> </em><em>= x</em>]. When evaluated, you get an approximate measure of 6,2.

Extended information on Trigonometric Ratios

O\H = sin θ

A\H = cos θ

O\A = tan θ

H\A = sec θ

H\O = csc θ

A\O = cot θ

I am joyous to assist you anytime.

4 0
3 years ago
Solve the equation. x/3 + 12 = 18
djyliett [7]

<u>answer:</u>  x = 18

<u>work:</u>

\frac{1}{3}x + 12 = 18  | subtract 12 on both sides, and solve.

\frac{1}{3}x = 6  | divide by \frac{1}{3} on both sides, and solve.

x = 18  | final answer.

hope this helps! ❤ from peachimin


4 0
3 years ago
Read 2 more answers
A copy machine makes
Mashutka [201]
28 x 3 3/4 = 84 + 21 = 105 copies.
6 0
3 years ago
Plzz help will mark brainliest don't do it for the points plzz!!!!
marin [14]

Answer:

Your answer is below

Step-by-step explanation:

A dilation by a scale factor of 2 and a rotation of 270 clockwise maps triangle 1 to 3.

hope it helps! have a nice day :)

8 0
3 years ago
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