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notka56 [123]
3 years ago
5

What is the value of x? x = [ ? ]

Mathematics
2 answers:
Readme [11.4K]3 years ago
6 0
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol. See: Variable.
Mnenie [13.5K]3 years ago
4 0

Answer:

Step-by-step explanation:

The tangent to the angle makes an angle of 90° with the radius.

The interior angle of the equilateral triangle is 60, so that leaves 90-60 = 30° for the remaining angle with the tangent.

By the exterior angle theorem, 30°+x° = 60° (interior angle of the equilateral triangle), therefore

x = 60-30 = 30°.

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A rectangular prism has a length of 1 1/4 cm, a width of 4 cm, and a height of 3 1/4 cm.
Ilya [14]
The equation is base area x height so is 11/4 x 4 x 3 1/4 = 35.75
4 0
3 years ago
Which fraction is in reduced form?
kompoz [17]

Answer:

  C  5/13

Step-by-step explanation:

A fraction is written in reduced form if there are no common factors in the numerator and denominator. Since you know your multiplication tables, you can easily identify the common factors:

  A 20 = 5·4, so 4 is a common factor 4/(4·5) = 1/5

  B 6 = 2·3, 9 = 3·3, so 3 is a common factor (2·3)/(3·3) = 2/3

  C 13 is not a multiple of the prime number 5, so there are no common factors. 5/13 is a reduced fraction

  D 14 = 2·7, 21 = 3·7, so 7 is a common factor (2·7)/(3·7) = 2/3

8 0
3 years ago
BRAINLIEST ANSWER GIVEN Without actually solving the​ problem, choose the correct solution by deciding which choice satisfies th
pochemuha

Answer:

<h2>length = 6 feet</h2><h2>width = 4 feet</h2>

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where l is the length

w is the width

The length of the rectangle is 2 feet longer than the width is written as

l = 2 + w

Perimeter = 20feet

So we have

20 = 2( 2 + w ) + 2w

20 = 4 + 2w + 2w

4w = 16

Divide both sides by 4

w = 4

Substitute w = 4 into l = 2 + w

That's

l = 2 + 4

l = 6

<h3>length = 6 feet</h3><h3>width = 4 feet</h3>

Hope this helps you

4 0
3 years ago
Read 2 more answers
4x+8=2x+7+2x- 20 what is it
FinnZ [79.3K]
<span>We simplify the equation to the form, which is simple to understand
<span>4x+8-2x=20

We move all terms containing x to the left and all other terms to the right.
<span>+4x-2x=+20-8

We simplify left and right side of the equation.
<span>+2x=+12

We divide both sides of the equation by 2 to get x.
<span>x=6</span></span></span></span></span>
5 0
3 years ago
Read 2 more answers
Which pair of lines are perpendicular
Gnesinka [82]

The answer is A. A perpendicular equation will have the opposite and reciprocal slope as the original equation.


Once converted to the slope-intercept form of y = mx+b, we find the two equations for A are y = 2x-1 and y = (-1/2)x + 3/2. The opposite reciprocal of the first equation's slope (m in the equation form given) is -1/2, which as you can see if the slope of the other equation.

5 0
3 years ago
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