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2 years ago

The list below shows the temperature Samuel recorded at 11:00 p.m. for four days last January.

Mathematics

1 answer:

kozerog [31]2 years ago

8 0

Answer:

thursday cuz -25 is the lowest out of them

Step-by-step explanation:

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I need help on this it’s about trig identities

Cerrena [4.2K]

Answer:

The answer to your question is:

Step-by-step explanation:

1.-

$\frac{1 + sin\alpha }{cos\alpha } + \frac{cos\alpha }{1 + sin\alpha } = 2 sec\alpha$

$\frac{(1 + sin\alpha)^{2} + cos^{2} \alpha }{cos\alpha (1 + sin\alpha) }$

$\frac{1 + 2sin\alpha + sin^{2} \alpha+ cos^{2} \alpha }{cos\alpha + sin\alphacos\alpha }$

$\frac{2 + 2sin\alpha }{cos\alpha+ sin\alpha cos\alpha }$

$\frac{2(1 + sin\alpha) }{cos\alpha(1 + sin\alpha ) }$

$\frac{2}{cos\alpha }$

2sec $\alpha$

2.-

sec²x - tanxsecx

$\frac{1}{cos^{2}x } - \frac{sinx}{cosx} \frac{1}{cosx}$

$\frac{1}{cos^{2} x} - \frac{sinx}{cos^{2}x}$

$\frac{1 - sinx}{cos^{2}x }$

$\frac{1 - sinx}{1 - sin^{2}x }$

$\frac{1 - sinx}{(1 - sinx)(1 + sinx)}$

$\frac{1}{1 + sinx}$

3 0

2 years ago

Please help meh on this for points and brainliest

Oxana [17]

Answer:

13 is two and two thirds of four and seven eighths.

Step-by-step explanation:

To solve this, all you need to do is divide 13 by 2 and two thirds. Let's do it:

$13 \div 2\frac{2}{3}\\= 13 \div \frac{8}{3}\\= 13 \times \frac{3}{8}\\= \frac{13 \times 3}{8}\\= \frac{39}{8}\\= 4\frac{7}{8}$

3 0

2 years ago

Read 2 more answers

The polynomial 3x? - 10x + 8 has a factor of 3x - 4. What is the other factor of 3x - 10x + 8?

DedPeter [7]

Answer: x-2

Step-by-step explanation:

7 0

3 years ago

Maggie sells homemade cookies. on a dozen cookies she spend 0.50 on flour, 0.70 on sugar, 0.40 on eggs,and 0.40 on packaging if

Art [367]

Using the profit concept, it is found that she makes a profit of $4 selling a dozen cookies for six dollars.

<h3>What is a profit?</h3>

The profit is given by the <u>subtraction of the revenue by the total costs</u>.

In this problem:

For the dozen cookies, she earned a revenue of 6 dollars.

In all, the total cost of the 12 cookies was of 0.5 + 0.7 + 0.4 + 0.4 = 2 dollars.

6 - 2 = 4, hence she makes a profit of $4.

More can be learned about the profit concept at brainly.com/question/4001746

5 0

2 years ago

three bookcases can hold 810 books. Each bookcase has 5 shelves . each shelf can hold the same number of books. how many books c

Rus_ich [418]

First, let's divide 810 by 3.

810/3= 270

Then we divide 270 by the number of shelves 5.

270/5= 54

The answer is 54.

5 0

3 years ago