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LenaWriter [7]
3 years ago
14

Identify the triangle that contains an acute angle for which the sine and cosine ratios are equal. Triangle A B C has angle meas

ures 50 degrees, 40 degrees, and 90 degrees. Triangle A B C has angle measures 45 degrees, 45 degrees, 90 degrees. The lengths of sides A C and C B are congruent. Triangle A B C has angle measures 68 degrees, 22 degrees, and 90 degrees. Triangle A B C has angle measures 60 degrees, 30 degrees, and 90 degrees.
Mathematics
2 answers:
marshall27 [118]3 years ago
7 0

Answer:

The sine and cosine are equal for 45 degrees.

Choose the triangle that has a 45-deg angle.

suter [353]3 years ago
3 0

Answer:

Answer is the second choice

Step-by-step explanation:

jut did it on edge

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Larissa practices for a swimming tournament
scoundrel [369]

Answer:

Larissa takes 59.141 seconds to complete both laps.

Step-by-step explanation:

The complete time is the sum of time taken on each lap. We translate the two statements into mathematical expressions to determine the required output:

(i) <em>She completes her first lap in 31.135 seconds</em>:

x_{1} = 31.135\,s

(ii) <em>She completes her second lap 3.129 seconds faster than the first lap</em>:

x_{2} = x_{1}-3.129\,s

x_{2} = 31.135\,s - 3.129\,s

x_{2} = 28.006\,s

Then, the time taken by Larissa to complete both laps is:

\Delta x = x_{1} + x_{2}

\Delta x = 31.135\,s+28.006\,s

\Delta x = 59.141\,s

Larissa takes 59.141 seconds to complete both laps.

4 0
3 years ago
A national organization has been working with utilities throughout the nation to find sites for large wind machines that generat
kozerog [31]

Answer:

"A Type I error in the context of this problem is to conclude that the true mean wind speed at the site is higher than 15 mph when it actually is not higher than 15 mph."

Step-by-step explanation:

A Type I error happens when a true null hypothesis is rejected.

In this case, as the claim that want to be tested is that the average wind speed is significantly higher than 15 mph, the null hypothesis has to state the opposite: the average wind speed is equal or less than 15 mph.

Then, with this null hypothesis, the Type I error implies a rejection of the hypothesis that the average wind speed is equal or less than 15 mph. This is equivalent to say that there is evidence that the average speed is significantly higher than 15 mph.

"A Type I error in the context of this problem is to conclude that the true mean wind speed at the site is higher than 15 mph when it actually is not higher than 15 mph."

8 0
3 years ago
How is estimation helpful when dividing multi-digit numbers.
Burka [1]
See, when you are traveling, you might get lost. if so, just remember "I need to go between _ and _ miles" estimating and rounding to the nearest number with 0 wiil help.
5 0
3 years ago
Given the information for Whelan Inc, in problem 10 and 11, suppose you also know that the firm's net capital spending for 2019
kotykmax [81]

Answer:

Based on information provided the only line item that falls in the Operating Cash Flow is Reduction in Net Working Cash Flow. Capital Spend comes under Investing Cash Flow. Debt, Interest payment, Dividend payment and capital surplus come under Financing Cash flow.

A reduction in net cash flow increases the cash flow for the company. Thus the OCF equals +$94,300 for the company.

Step-by-step explanation:

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3 years ago
(7x - 1) + (-x - 2) in simplest terms
ch4aika [34]

Answer:

6x-3

Step-by-step explanation:

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2 years ago
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