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yulyashka [42]
2 years ago
9

Which of the triangles shown are right triangles?

Mathematics
1 answer:
d1i1m1o1n [39]2 years ago
6 0

The right angle triangles are:

Triangle A has two acute angles and one ninety degree angle

Triangle d has two acute angles and one ninety degree angle.

<h3>What are right triangles?</h3>

A triangle is a three-sided polygon with three edges and three vertices. the sum of angles in a triangle is 180 degrees. A right angled triangle is a triangle in which one of its angles measure 90 degrees.

To learn more about triangles, please check: brainly.com/question/22949981

#SPJ1

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The product of 2 numbers is -24 and their sum is -5. What are the two numbers and why are they the two numbers?
lana [24]

The numbers are (-8, 3) or (3, -8).

Step-by-step explanation:

  • Step 1: Given the product of the numbers are -24 and their sum are -5. Let the numbers be a and b. Form equations out of these details.

⇒ a + b = -5 ⇒ b = -5 - a

⇒ a × b = -24 -------- (1)

  • Step 2: Substitute the value of b in eq(1)

⇒ a × (-5 - a) = - 24

⇒ -5a - a² = -24

⇒ a² + 5a - 24 = 0

  • Step 3: Solve the quadratic equation for a.

a = (-5 ± √25 - 4 × 1 × -24)/2

  = (-5 ± √121)/2

  = - 16/2, 6/2 = -8 or 3

  • Step 4: For each value of a, find b.

When a = -8, b = -5 +8 = 3

When a = 3, b = -5 - 3 = -8.

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3 years ago
Marina thinks the cost to rent scooters was $100 .The actual price is $150.What is Marina's percent error?
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The percent error is 33.3%
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Simplify 3(2m^3n^-2)^4
Effectus [21]

Answer:

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Step-by-step explanation:

Simplify the following:

3 ((2 m^3)/(n^2))^4

Multiply each exponent in (2 m^3)/(n^2) by 4:

3×2^4 m^(4×3) n^(-2×4)

4 (-2) = -8:

3×2^4 m^(4×3) n^(-8)

4×3 = 12:

(3×2^4 m^12)/(n^8)

2^4 = (2^2)^2:

(3 (2^2)^2 m^12)/(n^8)

2^2 = 4:

(3×4^2 m^12)/(n^8)

4^2 = 16:

(3×16 m^12)/(n^8)

3×16 = 48:

Answer: (48 m^12)/n^8

5 0
3 years ago
The pizza shown has a radius of 11 cm. What is the approximate area of the pizza? (Use 3.14 for .)
irga5000 [103]
A=\pi  r^{2}
A= 3.14*11^{2}
A=3.14*121
A=379.94 cm^{2}
4 0
3 years ago
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They are all equal except 2x2
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