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Pani-rosa [81]
3 years ago
10

4. Kim took a test that had 20

Mathematics
1 answer:
gladu [14]3 years ago
8 0
75% of 20 is 15
so she got 5 incorrect x
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1/3 + a = 5/4 <br> What does the a equal?
alekssr [168]

Answer:

1/3 + a = 5/4 = 4/15

4 0
3 years ago
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In a right triangle the side c opposite the right angle is called the hypotenuse, and the other two sides a and b are
RSB [31]

Answer:

The hypotenuse of the triangle measures 13 inches.

Step-by-step explanation:

Since the Pythagorean theorem states that in any right triangle the lengths of the three sides are related by the equation A ^ 2 + B ^ 2 = C ^ 2, to determine the length of the hypotenuse in a right thangle with legs 5 inches and 12 inches the following calculation should be performed:

5 ^ 2 + 12 ^ 2 = X ^ 2

25 + 144 = X ^ 2

√169 = X

13 = X

Therefore, the hypotenuse of the triangle measures 13 inches.

4 0
2 years ago
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Ur answer will be marked as brainliest...
Julli [10]

Answer:

92.75 cm^2

Step-by-step explanation:

Area of triangle ADC

= (1/2)×4.5×12 = 27

Area of triangle ACB

=(1/2)×12×5 = 30

Find AB using pythagoras theorem on triangle ABC:

AB^2 = 5^2 + 12^2 = 25 + 144

AB^2 = 169

AB = 13cm

Area of triangle AGB

= (1/2)×13×5.5 = 35.75

Total area = sum of the areas of the 3 triangles found above

= 27 + 30 + 35.75 = 92.75 cm^2

6 0
3 years ago
Prove the following statement by contradiction using an indirect proof. In a triangle angle A = 90°, then the triangle is a righ
kati45 [8]

Answer:

I prefer taking B

Step-by-step explanation : because when the degree is 90 than it should be a right triangle

3 0
3 years ago
What is the sum of 7/22 and 9/22
natulia [17]
 when u have a common a denominator then you just add the numerator that would be 7 and 9. 7 + 9= 16
so ur solution would be 16/22 and then u would simplify by dividing both values by 2.
so the solution is8/11
8 0
2 years ago
Read 2 more answers
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