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Sav [38]
3 years ago
11

Multiplication of radicals, simplify answer & show work please. 7(8-√5)

Mathematics
1 answer:
HACTEHA [7]3 years ago
5 0

Answer:

56 - 7\sqrt{5}

Step-by-step explanation:

Given

7(8 - \sqrt{5}) ← multiply each term in the parenthesis by 7

= 56 - 7\sqrt{5}

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What is the are of this figure giving our brainlist to whoever writes the answer in 10 min
kiruha [24]

Answer:

63 cm^2

Step-by-step explanation:

For finding the area, split the given figure into 2 rectangles one with dimensions 6×5 and another with dimensions 12×2

Area = 6×5 + 12×2 = 39+24 = 63

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The distance around a circular flower bed is 36 feet. Jasper wants to put stakes every 8 inches (2/3 of a foot) around the bed.
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Please answer this multiple choice question CORRECTLY for 30 points and brainliest!!
JulijaS [17]

Solve the inequality for x:

5x - 3 ≤ 7x +7

Subtract 7x from each side:

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The dot will be on -5, because the inequality includes equal to, the dot is solid and is greater than, the arrow will point to the right.

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4 0
3 years ago
PLEASE HELP LOOK AT THE PICTURE I NEED HELP NOWWWW!!!! WILL GIVE 20 POINTSSSSSS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Verdich [7]

Answer:

A. 35

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6 0
3 years ago
Read 2 more answers
Confidence Interval Application Many people feel that the drying of pavement marking paint is much too slow. You spend several d
djyliett [7]

Answer:

The sample size is  n =33

Step-by-step explanation:

From the question we are told that

  The margin of error is E  =  1.5 seconds

   The standard deviation is  s =  4 seconds

 Given that the confidence level is 97% then the level of significance is mathematically represented as

      \alpha =( 100 -97)\%

=>   \alpha  =  0.03

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  2.17

Generally the sample size is mathematically represented as

    n  =[  \frac{Z_{\frac{\sigma }{2 } } *  \sigma }{E} ]^2

=> n  =[  \frac{2.17  * 4 }{1.5} ]^2

=>  n =33

7 0
3 years ago
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