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erastovalidia [21]
3 years ago
15

Find X. This is a 40°, 40°, 90° triangle.

Mathematics
1 answer:
sergiy2304 [10]3 years ago
6 0

Answer:

In a 45°−45°−90° triangle, the length of the hypotenuse is √2 times the length of a leg. To see why this is so, note that by the Converse of the Pythagorean Theorem , these values make the triangle a right triangle. Note that an isosceles right triangle must be a 45°−45°−90° triangle.

Step-by-step explanation:

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A choir teacher is dividing 12 sopranos and 9 altos into singing groups. He wants each group to have the same combination of sop
almond37 [142]

Answer:

3 groups

Step-by-step explanation:

Sopranos = 12

Altos = 9

Find the highest common factor of 12 and 9

12 = 1, 2, 3, 4, 6, 12

9 = 1, 3, 9

The highest common factor of 12 and 9 is 3

Therefore, the choir teacher can only have 3 groups

12 sopranos / 3 groups

= 4 sopranos per group

9 Altos / 3 groups

= 3 altos per group

Each of the 3 groups Will have 4 sopranos and 3 altos each

3 0
3 years ago
If somebody can give me an explanation on how to do this i would appreciate it!
Natali5045456 [20]

The answer is 4+(9x1/10)+(5x1/1000)

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4 0
3 years ago
credit cards place a 3 digit security code on the back of cards what is the probability that a code starts with a number 7
WARRIOR [948]
This answer is not 3/4. The answer is 1/10. I found this by knowing that there are 10 numbers and there is a 1/10 chance that it will start with 7. I would really appreciate it if I could get brainliest. Thanks!! =D
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3 years ago
The vertex of ∠ABC is<br><br> A<br> B<br> C
DochEvi [55]
B. the middle letter in the name of the angle is always the vertex
6 0
4 years ago
Read 2 more answers
14/28 as a ratio a decimal and a percent
Sergeeva-Olga [200]
\frac{14}{28} is our fraction, which is not in lowest form, and therefore can be reduced. We can divide both numerator and denominator by 2, and we end up with 

\frac{7}{14}

7 goes into 14 twice, so we can reduce it further to become

\frac{1}{2}

To convert a fraction to a ratio, you just need to turn it on its side and make the | into a : So it would look like this:

1:2

1 / 2 = 0.5

<span>0.5 is the fraction in decimal form

To find a percentage, you just need to multiply the decimal by 100.

0.5 in percentage form would be 50%

Hope that helped =)
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5 0
3 years ago
Read 2 more answers
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