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3 years ago

I HAVE NO CLUE WHAT IS 7+9=?I CANT FIND MY CALCULATOR AND RAN OUT OF FINGERS

Mathematics

1 answer:

Alecsey [184]3 years ago

6 0

Answer:

the correct answer is 16

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A number is as much greater than 21 as it is less than 75 .find the number

laiz [17]

Answer:

Step-by-step explanation:

Let number is x greater than 21 and x less than 71.

Now, according to question,

21+x=71−x

2x=50

x=25

So, required number is 21+x=21+25=46.

Alternatively,

The required number would be the average or mean of 21 and 71.

So, required number =

(21+71)

=46.

7 0

3 years ago

What’s the answer????

BlackZzzverrR [31]

Answer:

1. 0.6

2. 0.25

Step-by-step explanation:

because math

7 0

3 years ago

Prove that sinxtanx=1/cosx - cosx

maks197457 [2]

Answer:

See below

Step-by-step explanation:

We want to prove that

$\sin(x)\tan(x) = \dfrac{1}{\cos(x)} - \cos(x), \forall x \in\mathbb{R}$

Taking the RHS, note

$\dfrac{1}{\cos(x)} - \cos(x) = \dfrac{1}{\cos(x)} - \dfrac{\cos(x) \cos(x)}{\cos(x)} = \dfrac{1-\cos^2(x)}{\cos(x)}$

Remember that

$\sin^2(x) + \cos^2(x) =1 \implies 1- \cos^2(x) =\sin^2(x)$

Therefore,

$\dfrac{1-\cos^2(x)}{\cos(x)} = \dfrac{\sin^2(x)}{\cos(x)} = \dfrac{\sin(x)\sin(x)}{\cos(x)}$

Once

$\dfrac{\sin(x)}{\cos(x)} = \tan(x)$

Then,

$\dfrac{\sin(x)\sin(x)}{\cos(x)} = \sin(x)\tan(x)$

Hence, it is proved

5 0

3 years ago

Graph the equation y = 22 – 3

jok3333 [9.3K]

It would be a straight horizontal line on y axis 19

4 0

3 years ago

Read 2 more answers

What are the dangers of having overdraft protection?

Oksanka [162]

Your bank can charge you a overdraft fee, it can effect your credit score <span>if you sign up for </span>overdraft <span>protection on the account.</span>

4 0

3 years ago