Which best explains whether or not triangles RST and ACB are congruent?

Mathematics

1 answer:

irga5000 [103]3 years ago

7 0

Two triangles are congruent if and only if their corresponding parts are congruent (CPCTC).

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Which choice shows the result of substituting 3x – 5 into the second equation for y?

ahrayia [7]

Answer: The answer is (B) 2x + 3(3x – 5) = 51 .

Step-by-step explanation: We are given three options and we are to select which choice shows the result of substituting 3x – 5 into the second equation for y.

So, y = 3x - 5.

Since the standard form of a linear equation i two variables is ax + by = c, so the second equation as given in the options must be of the form 2x + 3y = 51.

If we substitute y = 3x - 5, then this equation becomes

2x + 3(3x - 5) = 51.

Thus, (B) 2x + 3(3x – 5) = 51 is the correct option.

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3 years ago

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5h+3 - j; use h = 6, and j = 1

olga55 [171]

Answer:

Step-by-step explanation:

lets substitute the appropriate values in the equation:

5h+3 - j h= 6 j=1 , so we have:

5*6 +3 -1

30 +3 -1

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3 years ago

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The question is below thanks

Paha777 [63]

Answer:

FH ~ 10.02

Step-by-step explanation:

1. Approach

One should first find the circumference of the given circle. Then one should find how large the fraction of the circumference one is supposed to find is. Finally, one should multiply the fraction of the circumference one is supposed to find by the total circumference.

2. Circumference of the circle

The formula for circumference is;

$2r$ π

Substitute in the given values;

It is given that the radius is, hence

2 (7) π

14π

3. Find the fraction of the circumference one is supposed to find

It is given that the angles over the measure of the total degrees of angles in a circle are equal to the arc surrounding the angles of the circumference. Essentially;

$\frac{angles}{360}=\frac{arc}{circumference}$