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mart [117]
4 years ago
13

Given: Triangle PQR with m∠P=(5x)° , m∠Q=(5x)° , and m∠R=(8x)° .

Mathematics
2 answers:
GarryVolchara [31]4 years ago
7 0

sum of the angles in a triangle = 180°

thus 5x + 5x + 8x = 180

18x = 180

divide both sides by 18

x = \frac{180}{18} = 10


lozanna [386]4 years ago
5 0

Answer:

Just took the test. The answer is in the screenshot below. :-)

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Explain the difference between f(2) and f(x) = 2. Use a verbal explanation and create examples to make it very clear. Please hel
Firlakuza [10]

Let x be a variable, and f(x) a function of that variable.

f(2) is a <em>number </em>; it's the value of the function f(x) when x = 2, assuming that value exists.

f(x) = 2 is a <em>statement </em>; it says there is some value of x for which the function returns a value of 2. Because it's a statement, it can be true or false.

Here's an example:

Define f(x) = sin(x). Then f(2) = sin(2) ≈ 0.909297.

If x is a real number, then the statement sin(x) = 2 is false, because -1 ≤ sin(x) ≤ 1 for all real x.

If we replace 2 with 1, on the other hand, we get

f(1) = sin(1) ≈ 0.84147

and

sin(x) = 1  ==>  x = π/2 + 2nπ

where n is any integer. (So we're talking about numbers like π/2, -3π/2, 5π/2, -7π/2, and so on.) We're saying here that any real number x of the above form satisfies the equation and makes the statement true.

8 0
3 years ago
(2x + 64)。<br> 中个<br> (4x + 8)。<br> What is x?
JulsSmile [24]

Answer:

if that arrow stands for an equal, than x=28

4 0
3 years ago
Add three fractions together and get a whole number
DENIUS [597]

Answer:

1/3 +1/3+1/3

Step-by-step explanation:

Add all three to get a whole.

5 0
3 years ago
Read 2 more answers
If f(x) = 3x + 2 and g(x) = x2<br> x, find each value. f(2)=
Anika [276]

Answer:

F(2)=8 and G(2)=4

Step-by-step explanation:

3 0
3 years ago
Solve the system of equations using the elimination method. <br><br> 4x+3y=16<br> x=-3y+13
Ipatiy [6.2K]
Step by Step Solution
More Icon
System of Linear Equations entered :

[1] -4x - 3y = -7
[2] 16x - 3y = 13
Graphic Representation of the Equations :

-3y - 4x = -7 -3y + 16x = 13



Solve by Substitution :

// Solve equation [2] for the variable x


[2] 16x = 3y + 13

[2] x = 3y/16 + 13/16
// Plug this in for variable x in equation [1]

[1] -4•(3y/16+13/16) - 3y = -7
[1] - 15y/4 = -15/4
[1] - 15y = -15
// Solve equation [1] for the variable y


[1] 15y = 15

[1] y = 1
// By now we know this much :

x = 3y/16+13/16
y = 1
// Use the y value to solve for x

x = (3/16)(1)+13/16 = 1
Solution :
{x,y} = {1,1}
7 0
3 years ago
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