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3 years ago

An expression is a mathematical statement using numbers, operations, and variables true or false

Mathematics

2 answers:

kakasveta [241]3 years ago

5 0

Answer:

I believe that this is true.

Mariana [72]3 years ago

3 0

Answer/Step-by-step Explanation:

True. Expressions cm be expressed using the above listed

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Solve for x. 1) 22x -2=20x+10

Ivanshal [37]

Answer:

x=6

Step-by-step explanation:

22x-2=20x+10

22x-20x=10+2

2x=12

x=6

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3 years ago

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Look at the triangle show on the right. The Pythagorean Theorem states that the sum of the squares of the legs of a right triang

Vladimir [108]

Answer:

$cos^2\theta + sin^2\theta = 1$

Step-by-step explanation:

Given

$(\frac{b}{r})^2 + (\frac{a}{r})^2$

Required

Use the expression to prove a trigonometry identity

The given expression is not complete until it is written as:

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = (\frac{r}{r})^2$

Going by the Pythagoras theorem, we can assume the following.

a = Opposite
b = Adjacent
r = Hypothenuse

So, we have:

$Sin\theta = \frac{a}{r}$

$Cos\theta = \frac{b}{r}$

Having said that:

The expression can be further simplified as:

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = 1$

Substitute values for sin and cos

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = 1$ becomes

$cos^2\theta + sin^2\theta = 1$

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4 years ago

The perimeter of the scalene triangle is 88 cm.Which equation can be used to find the value of b if side a measures 12.5 cm?

Mariulka [41]

Answer:

A scalene triangle is one whose sides are all a different length. So there is no way you can find the length of b when you are only given the length of a and the perimeter.

Step-by-step explanation:

hopes it help :)

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3 years ago

If mEB=72 and the mBD 3y - 27, then<br> y =

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To graph y = f (x-h), move the graph of h units to the right. We have then: g (x) = (x-2) ^ 2 ... If mEB=72 and the mB D 3y - 27, then<br /> y =.

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2 years ago

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Sergio039 [100]

East coast has a four hour difference between California idit is 4pm

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4 years ago

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