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2 years ago

9

thick is 20 cm long a student makes a 5% error in measuring the stick find the two possible values for the students measu rement

1 answer:

erica [24]2 years ago

7 0

Answer:

21 or 19.

Step-by-step explanation:

5% of 20 is = 1

for him to make a 5% mistake he has to either go over 1 or miss by 1 so, go over one which gives you 21 and miss one which gives you 19.

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2 years ago

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Step-by-step explanation:

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2 years ago

The length of the base of a triangle is twice its height. if the area of the triangle is 44 square kilometers, find the height

xeze [42]

Let
$x$
be the height of the triangle.

Formular for area of Triangle
= ½ × base × height

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3 years ago

A home alarm system randomly assigns a five-character code for each customer. The code will not repeat a character. The characte

ahrayia [7]

Answer:

The total number of codes which can be assigned is, 55440 .

Step-by-step explanation:

According to the question, the home alarm system randomly assigns a five-character code for each customer.The code will not repeat a character and there are 11 distinct characters.

So, the total number of codes that can be randomly assigned is given by,

$^{11}{P}_{5}$

= $\frac {11!}{6!}$

= $11 \times 10 \times 9 \times 8 \times 7$

= 55440

5 0

2 years ago