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NeX [460]
3 years ago
10

3.simplifyyyyyyyyyyyyyyyyyyy

Mathematics
2 answers:
Charra [1.4K]3 years ago
4 0

Answer:

C. 7

Step-by-step explanation:

garik1379 [7]3 years ago
4 0

Answer:

(3+√2)(3-√2) =  7

Step-by-step explanation:

We have given a expression.

(3+√2)(3-√2)

We have to simplify above expression.

We use difference formula to solve above expression.

(a-b)(a+b) =   a²-b²

(3+√2)(3-√2) =  (3)²-(√2)²

(3+√2)(3-√2) =  9-2

(3+√2)(3-√2) =  7 which is the answer.

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= (x + 5)(x - 9)

Step-by-step explanation:

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3 years ago
Need help thanks in advanced
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2 years ago
The null and alternative hypotheses are given. Determine whether the hypothesis test is​ left-tailed, right-tailed, or​ two-tail
Dahasolnce [82]

Answer:  The parametric is being tested here is "p" (population proportion).

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Step-by-step explanation:

Given : The null and alternative hypotheses are

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The parametric is being tested here is "p", where p stands for population proportion.

Also, the type of test depends on the alternative hypotheses.

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8 0
3 years ago
In a certain quiz that consists of 10 questions, each question after the first is worth 4 points more than the preceding questio
weqwewe [10]

Answer:

C. 26

Step-by-step explanation:

Let’s suppose that the first question is worth ‘’x’’ amount of points. Then the second question will be worth x+4, the third question x+8, the fourth question x+12, the fifth x+ 16, the sixth x+20, the seventh x+24, the eighth x+ 28, the ninth x+ 32, and the last one x + 36.

The sum of the points of all these questions is equal to 10x + 180. Since the quiz has a total of 360 points, then

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Solving for x we get:

X = 18.

This means that the first question is worth 18 points, the second one 22 points (18 +4), the third one 26 points(18+4+4), and so on.  

8 0
3 years ago
Given that €1=£0.72 how much is €410 in £ what is the £ to € exchange rate
Virty [35]

Answer:

As per the given statement:

€1 = £0.72

Find how much is €410 in £.

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to find, the exchange rate of £ to €:

€1 = £0.72

Divide both sides by 0.72 we get;

£1 = €1.389

4 0
3 years ago
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