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motikmotik
3 years ago
5

The length of one leg of a right triangle is 9cm and 40cm

Mathematics
2 answers:
Vika [28.1K]3 years ago
5 0

Answer:

B. 41

Step-by-step explanation:

Missing sides of a right triangle can be found using the Pythagorean Theorem.  The formula for the Pythagorean Theorem is: a² + b² = c², where 'a' and 'b' represent the legs of the triangle and 'c' represents the hypotenuse.  Since the leg lengths of the right triangle are given as 9cm and 40cm, we can set up the following equation:

9² + 40² = c²  or 81 + 1600 = c²

1681 = c²

Take the square root of both sides: √1681 = √c²

c = 41 (answer choice B)

Damm [24]3 years ago
4 0

Answer:

Step-by-step explanation:

I think ur is D but I'm not sure

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Are these answers correct
professor190 [17]
No you have to move the decimal place over 2 times to the left
7 0
3 years ago
What number must be added to both sides of this equation in order to "complete the square"?
Arte-miy333 [17]

Answer:

D 9 is the correct answer

4 0
3 years ago
A yogurt company claims that it prints a free yogurt coupon under a randomly selected 20% of its lids. A loyal customer purchase
Alona [7]

Answer:

The customer can conclude that the company's claim is correct

Step-by-step explanation:

The percentage of lids that has a free yogurt coupon = 20%

The number of cups a loyal customer purchases = 85 yogurt cups

The number of cups that contained a coupon = 12 (14.1%)

The confidence interval performed = 99% confidence interval for the proportion of yogurt cups containing coupon codes

The interval obtained = (0.044, 0.238)

Therefore, the range of proportion within which the true proportion exists is 0.044 < \hat p < 0.238

The range of percentage within which the true percentage exist is therefore;

0.044 × 100 = 4.4%  < \hat p × 100 < 0.238 × 100 = 23.8%

Given that the possible true percentage of lids that has a coupon is between 4.4% and 23.8% at 99% confidence level, the customer can conclude that only 12 of his yogurt cup contained coupon by chance and that the company's claim is correct.

4 0
3 years ago
Find the missing terms in each arithmetic sequence <br> 1,__,__,-17<br> 2,__,__,20
Galina-37 [17]

Answer:

-5,-11

8,14

Step-by-step explanation:

Let 's say r the commun difference

1)

1,1+r,1+2r,1+3r=-17

1+3r=-17

3r=-18

r=-6

Sequence is 1,-5,-11,-17

2)

2,2+r,2+2r,2+3r=20

2+3r=20

3r=18

r=6

Sequence is 2,8,14,20

4 0
2 years ago
Two rectangles are similar. The ratio of their corresponding sides is 1:4.
larisa [96]

ratio of perimeter is the same as ratio of sides so perimeter would be 1:4

since area is in square units you need to square the ratio (1:4)^2 which is 1:16

7 0
3 years ago
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