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MrRa [10]
3 years ago
7

Please help me thank you ​

Mathematics
1 answer:
Karolina [17]3 years ago
8 0
I’m sure it’s the last one
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Simplify<br><br> Will give brainiest to person who solves all the problems in picture.
Reika [66]

Answer:

\sqrt{10+4\sqrt{6 } = 4.44948

or = \sqrt{6}  + 2

<em>step by step...solving </em>

<em>10 + 4</em>\sqrt{6}<em />

<em>add/subtract </em>\sqrt{6}<em>² = 6</em>

<em>=10 + 4</em>\sqrt{6}<em> + </em>\sqrt{6}<em>² - 6</em>

<em>Refine</em>

<em>= </em>\sqrt{6}<em> ² + 4</em>\sqrt{6}<em> + 4</em>

<em>rewrite </em><em>↑</em><em> as </em>\sqrt{6}<em>² + 2</em>\sqrt{6}<em> * 2 + 2²</em>

<em>apply Perfect Square Formula (a + b)² = a² + 2ab +²</em>

<em>a = </em>\sqrt{6}<em>, b=2</em>

<em>= (</em>\sqrt{6}<em> + 2)²</em>

<em>= </em>\sqrt \sqrt({6}+ 2)<em>2square    </em>

<em>(the 2 square would not fit like i wanted it to)</em>

<em>apply radical rule </em>\sqrt[n]{a^{n} } = a<em>, assuming a ≥ 0</em>

<em>= </em>\sqrt{6} + 2<em />

posting others as picture (have an account with Symbolab to help me as well.  Just taking too long to type in the step by step if you need it.  all pictures have the decimal result.

5 0
3 years ago
Shen drove 780 miles in 12 hours. At the same rate, how many miles would he drive in 5 hours?​
Wittaler [7]
780miles/12 hours equals 65 miles per 1 hour. if you are going at the same rate, you multiply 65 miles times 5 hours to get 325 miles. he drove 325 miles in 5 hours
7 0
3 years ago
NEED HELP ASAP ITS DUE AT 12:00 AM 10 POINTS PICTURE IS INCLUDED
xz_007 [3.2K]

Answer: I think it might be 8750 ?? Sorry if its wrong :<

6 0
3 years ago
Read 2 more answers
8. Which of the following correctly multiplies f(x) x g(x) if f(x) = 3x-1 and g(x) = 2x + 1?
raketka [301]

Answer:

C) f(x) x g(x) = 6x2 + x-1

Step-by-step explanation:

Multiplication of functions:

Two multiply two polynomial functions, we apply the distributive property(multiply each two terms and add).

In this question, we have that:

f(x) = 3x - 1, g(x) = 2x + 1

The multiplication is:

f(x) \times g(x) = (3x - 1)(2x+1) = 3x*2x + 3x*1 -1*2x -1*1 = 6x^2 + 3x - 2x - 1 = 6x^2 + x - 1

The correct answer is given by option C.

4 0
3 years ago
A machine has four components, A, B, C, and D, set up in such a manner that all four parts must work for the machine to work pro
olchik [2.2K]

Answer:

0.756

Step-by-step explanation:

It is given that a machine has four components, A, B, C, and D.

P(A)=P(B)=0.93, P(C)=0.95,P(D)=0.92

If these components set up in such a manner that all four parts must work for the machine to work properly.

We need to find the probability that the machine works properly. It means we have to find the value of P(A\cap B\cap C\cap D).

If two events X and Y are independent, then

P(X\cap Y)=P(X)\times P(Y)

Assume the probability of one part working does not depend on the functionality of any of the other parts.

P(A\cap B\cap C\cap D)=P(A)\times P(B)\times P(C)\times P(D)

Substitute the given values.

P(A\cap B\cap C\cap D)=0.93\times 0.93\times 0.95\times 0.92

P(A\cap B\cap C\cap D)=0.7559226

P(A\cap B\cap C\cap D)\approx 0.756

Therefore, the probability that the machine works properly is 0.756.

7 0
3 years ago
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