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BlackZzzverrR [31]
3 years ago
15

How to determine if a triangle is acute by its sides?

Mathematics
1 answer:
Ann [662]3 years ago
6 0
Use the following ( a,b and c are the lengths of the 3 sides with a the longest side):-

If its acute then a^2 < b^2 + c^2
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Circumferance of a pizza with diameter of 10 inches
Verdich [7]
30.41592653 to work this out you need to times your diameter by Pi in the case 20 x Pi
6 0
3 years ago
7,5 +-7,5+-7-2+7-2 what is the perimeter
garik1379 [7]

If you add them all up it would be 6.

7 0
4 years ago
Given f(x)= 4x^4 find f^-1(x) Then state whether f^-1(x) is a function
PIT_PIT [208]

Answer:

The inverse is

f^-1(x) = (1/√2)x^¼

And it is a function

Step-by-step explanation:

Given f(x) = 4x^4

Let y = f(x), so that

y = 4x^4

Then dividing both sides by 4

x^4 = y/4

Taking the fourth root of both sides

x = (y/4)^¼

x = (1/√2)y^¼ = f^-1(y)

Put y = x

y = (1/√2)x^¼ = f^-1(x)

This is the inverse.

f^-1(x) is a function.

4 0
4 years ago
Determine the shaded areas part 2​
shutvik [7]

9514 1404 393

Answer:

  (a) cannot be determined

  (b) 44 cm^2

  (c) 87 m^2

  (d) 180 m^2

  (e) 132 m^2

Step-by-step explanation:

(a) missing a horizontal dimension

__

(b) The difference between the bounding rectangle and the lower-left cutout is ...

  (8 cm)(7 cm) -(3 cm)(4 cm) = (56 -12) cm^2 = 44 cm^2

__

(c) The difference between the bounding rectangle and the center cutout is ...

  (13 m)(7 m) -(4 m)(1 m) = (91 -4) m^2 = 87 m^2

__

(d) The difference between the bounding rectangle and the two cutouts is ...

  (20 m)(25 m) -(16 m)(20 m) = (20 m)(25 -16) m = (20 m)(9 m) = 180 m^2

__

(e) The difference between the bounding rectangle and the two cutouts is ...

  (14 m)(12 m) -(12 m)(3 m) = (12 m)(14 -3) m = (12 m)(11 m) = 132 m^2

3 0
3 years ago
1. For y = 4x^2 + 9 − 5x^4 − x^3 a. Rewrite the equation in standard form: b. Identify the degree: c. Describe the end behavior:
ololo11 [35]

Answer:

9

Step-by-step explanation:

4 0
3 years ago
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