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Mandarinka [93]
3 years ago
5

Write the expression as the sine, cosine, or tangent of an angle.

Mathematics
1 answer:
gregori [183]3 years ago
4 0
The given expression is the expansion of cos (a-b)
so we can simply calculate it as <span>cos(112-45)= cos 67</span>
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Expression: (5−2)2+23×4 Step 1: (3)2+23×4 Step 2: 9+23×4 Step 3: 9+9×4 Step 4: 9+36 Step 5: 45 Emily made a mistake. Which step
Levart [38]

Answer:

Step 3

Step-by-step explanation:

Given

(5 - 2)^ 2 + 23 * 4

Required:

Determine the first step where she made mistake

Her Step 1:

(3)^ 2 + 23 * 4 --- This is correct because she solved the bracket first

Her Step 2:

9 + 23 * 4 --- This is correct because she solved 3^2 as 9

Her Step 3:

9 + 9 * 4 --- This is incorrect because 23 * 4 is not equivalent to 9 * 4

Hence, her first mistake is in step 3.

The correct expression would have been

9 + 92

Then

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6 0
2 years ago
Which statements about the line that passes through (−2, 0) and (2, −4) are true? Select all that apply.
inn [45]

Your question is incomplete.

Answer choices not apply.

But if this is your question in the picture below then this is your answer..

Answer:

The line intersects the y-axis at (0, −2).

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The line intersects the x-axis at (−2, 0).

Step-by-step explanation:  

6 0
2 years ago
What is the median of 32 48 22
inysia [295]
The median is 32; list numbers least to greatest, which ever is in the middle is the median
8 0
3 years ago
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There are 200 balls of the same size inside a dark room. There are 100 white balls, 55 red balls, and 45 black balls. If one stu
Komok [63]

Answer:

Probability of picking Red ball is 27.5%

Step-by-step explanation:

Given:

Total Number of balls = 200

Number of White balls = 100

Number of Red balls = 55

Number of Black balls = 45

We need to find the probability of the ball picked to be red.

Solution:

Now we know that;

Probability is equal to number of Possible Outcomes divide by total number of Outcomes multiplied by 100.

framing in equation form we get;

P(Red) = \frac{\textrm{Number of Red balls}}{\textrm{Total Number of balls}} \times 100

P(Red) = \frac{55}{200}\times100

P(Red) = 27.5\%

Hence Probability of picking Red ball is 27.5%.

6 0
3 years ago
What is the mean median and mode of 3,721,23,63,27,29,95 and 23?
Sladkaya [172]

Answer:

Mean: 123

Median: 28

Mode: 23

Step-by-step explanation:

give brainliest

4 0
1 year ago
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