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3 years ago

Please help me im stuck

Mathematics

1 answer:

telo118 [61]3 years ago

5 0

Answer:

b) 1/5x1/5x1/5=1/125

Step-by-step explanation:

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......ah....................

Rus_ich [418]

Answer:

a infinatley many

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Which of the following is the graph of f(x) = x^2 − 5x + 4?

melamori03 [73]

Factor to find x intercepts
x intercepts occur where f(x)=0
so
0=f(x)=x^2-5x+4
what2 numbers multiply to get 4 and add to get -5?
-4 and -1
0=(x-4)(x-1)
set to zero
x-4=0
x=4

x-1=0
x=1

x intercepts at 1 and 4
so therefor it is the 3rd option

8 0

3 years ago

Jeanette is writing the first five terms of an arithmetic sequence. She knows that a1 is -27 and the common difference is 5. She

Musya8 [376]

No they are not correct. She should be adding 5 to the next terms instead of subtracting them. i.e. -27, -22, -17, -12, ...

6 0

3 years ago

Can anyone help me to solve these 2 questions please <br>I need very clear steps !!!!

DochEvi [55]

Hope this helps you

4 0

3 years ago

True or false (Picture provided)

Naya [18.7K]

<h2>Hello!</h2>

The answer is: True.

A counterexample is a way that we can prove that something is not true about a mathematical equation or expression, it's also considered as an exception to a rule.

So:

$sec^{2}x-1=\frac{cosx}{cscx}\\\\tg^{2}x=\frac{cosx}{\frac{1}{sinx}}\\\\\frac{1-cos2x}{1+cos2x}=cosxsinx$

Then, evaluating we have:

$\frac{1-cos(2*45)}{1+cos(2*45)}=cos(45)*sin(45)\\\\\frac{1-0}{1+0}=\frac{\sqrt{2} }{2}*\frac{\sqrt{2}}{2}\\\\1=\frac{(\sqrt{2})^{2} }{4}\\\\1=\frac{2}{4}\\\\1=\frac{1}{2}$

Hence, we can see that the equation is not fulfilled, so, 45° is a counterexample for $sec^{2}x-1=\frac{cosx}{cscx}$ and the answer is true.

Have a nice day!

3 0

4 years ago