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rosijanka [135]
3 years ago
15

Which side lengths form a right triangle?

Mathematics
2 answers:
Ainat [17]3 years ago
8 0

Answer:

B and C

Step-by-step explanation:

Side lengths of 4, 8, and 12 do not form a right triangle. According to the Pythagorean Theorem, a² + b² = c². In this theorem, "c²" represents the largest side (c) squared

kakasveta [241]3 years ago
7 0

Answer:

C) 2,2,2.82842712

Step-by-step explanation:

You might be interested in
Suppose that v = −2 and w = −1.<br> Which one of the following expressions is positive?
melisa1 [442]

Answer:

D

Step-by-step explanation:

Only D is positive.

 

-v       -2

----- = ----- = +2

-w      -1

4 0
3 years ago
Read 2 more answers
A two-digit number is 5 times the sum of its digits. If 9 is added to the number, its digits are reversed. Find the number​
forsale [732]

Answer:

The number = 45

Step-by-step explanation:

Let the 10s digit = x

Let the units digit = y

10*x + y = 5(x + y)                        Start here: remove the brackets

10*x + y + 9 = 10y + x                   Subtract y and 10x from both sides

Using the first equation

10x + y = 5x + 5y

5x + y - 5y = 0

5x - 4y = 0

5x = 4y

y = 5/4x

From the second equation

9 = 9y - 9x

1 = y - x           Substitute y = 5/4 x

1 = 5/4x - x

1 = 1/4  x

x = 4

y = 5/4 * 4

y = 5.

8 0
2 years ago
A polling organization announces that the proportion of American voters who favor congressional term limits is 64%, with a 95% c
EastWind [94]

Answer:

Hence when C.I. is 80% then Margin of error will be 1.9591%

Step-by-step explanation:

Given:

1st Margin of error(MOE)=3%

1st C.I.=95%

2nd C.I.=80%

To Find:

MOE at 80%

Solution:

The proportion is 64 % i.e. is constant for both MOE

Proportion is given by (P),

P=x/n

Where x= favors congressional terms

n= total voters or sampled voters.

There values are same or constant.

i.e standard deviation is also constant

Now Formula for MOE is given by

MOE=Z*[Standard devation/Sqrt(n)]

here Z is value for confidence interval

MOE is directly proportional to the Z-value

So

MOE=K*Z-value         ... where k is proportionality constant.

MOE/Z-value              ....ratio is constant

So , for 95 % Z=1.96 and for 80% Z=1.28

MOE(1st)/(Z-value 1st)=MOE(2nd)/(Z-value 2nd)

3/1.96=MOE(2nd)/1.28

MOE(2nd)=(3/1.96)*1.28

MOE(2nd)=1.5306*1.28

=1.9591 %

5 0
3 years ago
PLEASE HELP!!!! will give brainliest points to whoever answers first!!!! only going on for 30 minutes.
exis [7]

Answer:

Is to place a ' or a prime

ΔA'B'C'

7 0
3 years ago
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Help asap please!!
Nataly_w [17]

Answer:

Screenshot of work is uploaded.

Step-by-step explanation:

7 0
3 years ago
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