terriblexsiren
29.01.2020 •
Mathematics
At sara's new job she spent $11.52, $6.48, $5.99, $14.00, and $9.50 on lunch the first week. in the second week, she spent $4 more in total for the 5 lunches than the first week. what is the increase in the mean for the second week compared to the first? round the answer to the nearest penny. enter your answer in the box.
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Ответ:
The second week, Sara spent $51.49 with a mean of 10.3.
The increase in mean from the first week to the second is 0.8
Hope this helps!
Ответ:
z=x and
Step-by-step explanation:
If cos(w°) = sin(z°)
Then by trigonometric ratios of complementary angles:
z=90-w.
Therefore:
In Triangle ABD, w and x are complementary angles.In Triangle ECD, y and z are also complementary angles.Since z=90-w
Therefore: z=x; and w=y
Expressing in order of corresponding angles, we have:
In triangle ABD, starting from the right angle, we have: 90-w-x (DAB )In triangle ABD, starting from the right angle, we have: 90-y-z (DEC )Therefore:
z=x and