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Anit [1.1K]
3 years ago
5

Solve:5^x+1/5^x=25 1/25​

Mathematics
2 answers:
creativ13 [48]3 years ago
6 0

Answer:

x = -2 I think that the right answer

Vaselesa [24]3 years ago
6 0

Answer:

either x=2 or x=-2

Step-by-step explanation:

let 5^x be a then,

a+1/a=626/25

or,25(a^2+1)=626a

or,25a^2+25-626a=0

or,25a^2-626a+25=0

or,25a^2-(625+1)a+25=0

or,25a^2-625a-a+25=0

or,25a(a-25)-1(a-25)=0

or,(a-25)(25a-1)=0

either,

a-25=0

or,a=25

or,5^x=5^2

equating the powers we get,

x=2

or,

25a-1=0

or,a=1/25

or,5^x=1/5^2

or,5^x=5^-2

equating the powers we get,

x=-2

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If angle 1= 105°, angle 12= (3x + 15)°, and angle 7 = (8y-5)°, determine the values<br> of x and y.
Darina [25.2K]

The value of the variable x is 30° and the value of the variable y is 10°.

The missing diagram is attached below.

<h3>What is an angle?</h3>

The angle is the distance between the intersecting lines or surfaces.

Corresponding angle – If two lines are parallel, then the third line. The corresponding angles are equal angles.

Vertically opposite angle – When two lines intersect, then their opposite angles are equal.

Linear angle – If the total of two angles is 180 degrees, they are said to be linear angles.

∠1 = ∠5 = ∠9 = 105° (corresponding angles)

∠1 = ∠4 = 105° (Vertical opposite angles)

∠1 + ∠2 = 180° (linear angle)

       ∠2 = 75°

∠2 = ∠3 = 75° (Vertical opposite angles)

∠3 = ∠8 = ∠12 = 75° (corresponding angles)

If angle ∠1 = 105°, angle ∠12 = (3x + 15)°, and angle ∠7 = (8y-5)°.

Then the value of x and y will be

   ∠9 = ∠12

   ∠1 = ∠12

105° = (3x + 15)°

  3x = 90°

    x = 30°

∠6 = ∠7

75° = (8y – 5)°

8y = 80°

  y = 10°

More about the angled link is given below.

brainly.com/question/15767203

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2 years ago
What is the axis of symmetry of h(x)= 5x^2+40x+ 64?
andrezito [222]

Answer:

Axis of symmetry is  x = -4

Step-by-step explanation:

h(x)= 5x^2+40x+ 64

Use the formula for axis of symmetry:   x = -b/(2a)

Here,  a = 5,  b = 40,  c = 64

so

x = -40/(2*5) = -40/10 = -4

Axis of symmetry is  x = -4

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Step-by-step explanation:

2:12 is equivalent to 8:48

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