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insens350 [35]
3 years ago
14

2√72 + 5√242 what is the answer for this question please can u tell me the right answer​

Mathematics
1 answer:
Radda [10]3 years ago
6 0

Answer:

67\sqrt{2}

Step-by-step explanation:

Assuming you require to simplify the expression.

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Simplifying the radicals

\sqrt{72} = \sqrt{36(2)} = \sqrt{36} × \sqrt{2} = 6\sqrt{2}

\sqrt{242} = \sqrt{121(2)} = \sqrt{121} × \sqrt{2} = 11\sqrt{2}

Then

2\sqrt{72} + 5\sqrt{242}

= 2(6\sqrt{2} ) + 5(11\sqrt{2} )

= 12\sqrt{2} + 55\sqrt{2}

= 67\sqrt{2}

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In a random sample 70 people, it was found that 44 of them were fans of NY Yankees. What is the margin of error for the true pro
stich3 [128]

Answer:

C

Step-by-step explanation:

44/70 which is about 0.063 Hope this helps :D Please mark brainliest

5 0
3 years ago
What is the slope of a line going through the points (-4, -11) and (-7,2)?
elena55 [62]
The answer to this is:

m = -13/3

Explanation:

Y2 - Y1 / X2 - X1

2-(-11) / -7-(-4)

13 / -3

Answer = -13/3
5 0
3 years ago
Read 2 more answers
Plz help i will mark brainliest
Rama09 [41]

Answer:

22 units

Step-by-step explanation:

The perimeter of a rectangle is 2(width + length)

In this case width = 2z + 2 and length = 3z + 3

replacing everything known:

110 = 2(2z + 2 + 3z + 3)

110/2 = (5z + 5)

55 = 5z + 5

55 - 5 = 5z

50 = 5z

10 = z

Segment PQ is the same as SR = 2z + 2

Replacing z = 10

PQ = 2(10) + 2

8 0
3 years ago
Read 2 more answers
How do I solve this?<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3x%7D%7B8%7D%20%20-%201%20%3D%20%20%5Cfrac%7B5%7D%7B8%7D%
AURORKA [14]

To solve this problem, we first have to combine the two fractions on the left side of the equation.  To do this, we must make a common denominator of 8.  Because 8/8 is equal to 1, we can substitute this value into the equation:

3x/8 - 8/8 = 5/8

Next, we can subtract the fractions on the left side of the equation to simplify.  Remember that if fractions have the same denominator, we simply subtract their numerators and keep the difference over the common denominator.

3x - 8/8 = 5/8

Since both sides of the equation have a denominator of 8, we can cancel out this denominator on both sides by multiplying both sides by 8.  This gives us:

3x - 8 = 5

Next, we should add 8 to both sides of the equation so that we can get all of the constants to the right side of the equation.

3x = 13

Finally, we should divide both sides by 3 to get the variable alone on the left side of the equation.

x = 13/3

Therefore, your answer is x = 13/3.

Hope this helps!

7 0
3 years ago
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