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kumpel [21]
3 years ago
12

........ help ASAP please....

Mathematics
1 answer:
Anna11 [10]3 years ago
3 0

Answer:

See below

Step-by-step explanation:

In the second step there should be (1 - cot x) instead of (1 + cot x)

(1 + tan x) [1 + cot(-x)]

= (1 + tan x) (1 - cot x)

= 1 - cot x + tan x - tan x cot x

= 1 - cot x + tan x - 1

= tan x - cot x

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Brianna typically sells candy bars for $4.70. During a sale she prices them at $3.30. What is the approximate percent discount o
Elena-2011 [213]

Answer:

30%

Step-by-step explanation:

One simple way of finding out discounts is to simplify our answer by starting with 10% and subtracting from that.

If the original price were to have a 10% discount, it would be 4.70/10 for .47 per 10% off.

10% gives us 4.23, so let's take another 10% off by doing 4.23-.47, which is equal to 3.76. While lower, it's not our answer so lets do another 10%

3.76-4.7 = $3.29

With a total of 3 10%'s taken off, or in this case, 30% off, we can conclude that the discounted prices of $3.29 is 30% of the original price.

4 0
2 years ago
Read 2 more answers
Simplify.
ValentinkaMS [17]


first, you would rearrange the equation so that like terms were next to each other.

7y - 5y - x2 + 2x2 +3x - 17x

then you would reduce the equation based on like terms

2y + x2 - 14x

then simply rearrange the equation to get the answer, which is <u>B</u>

5 0
3 years ago
Will mark brainliest, please answer correctly!!!
Mariana [72]

Answer:

The length of BC is 17 units

Step-by-step explanation:

we know that

An isosceles triangle has two equal sides and two equal angles

In this problem we have an isosceles triangle

Because

m∠ACB=m∠ABC ----> given problem

so

AC=AB

substitute the given values

x+9=2x-8

solve for x

2x-x=9+8

x=17

therefore

The length of BC is 17 units

5 0
3 years ago
Find the length of the side
MrRa [10]

Answer:

So AC = 25

Step-by-step explanation:

ABC = LMN

That means AB = LM

                    BC = MN

                    AC = LN

We know AB = 41  MN = 38  and LN  = 25

AB = LM = 41

BC = MN=38

AC = LN=25

So AC = 25

7 0
3 years ago
If log a 2 and log b 3 what is the numerical value of
Scilla [17]
I guess the question is incomplete...
4 0
3 years ago
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