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Serggg [28]
3 years ago
15

Write each of the following expressions or equation in words.b+22.2b+7=15

Mathematics
1 answer:
AysviL [449]3 years ago
3 0
A number plus twenty-two point two times a number plus seven is 15. 
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Tan100°=<br><br> 1. tan80°<br> 2. tan280°<br> 3. -tan80°
lana [24]

Answer:

  2.  tan 280°

  3.  -tan 80°

Step-by-step explanation:

Your calculator can help you figure this out.

__

The tangent function is periodic with a period of 180°, so tan(100°) will be equal to tan(100°+k·180°) for any integer k. Answer choices include k values of ±1, so two of them are correct:

  • tan(100°) = tan(100° -180°) = tan(-80°)
  • tan(100°) = tan(100° +180°) = tan(280°)
3 0
3 years ago
Which of the following choices describe the bases of a cylinder?
nataly862011 [7]

Answer:

they are parallel to each other is the best choice to describe the bases of a cylinder. The answer is PARALLEL

7 0
2 years ago
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Answer the following questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!
bixtya [17]

Answer by JKismyhusbandbae: a^n = 4n + 1

Explanation: So the regular formula for sequence is:

an = a1 + d (n – 1)

a1 = the first term.

d = common difference

n = term number

So in the formula form it would look like this: an: 5 - 4(n-1)

Then I like to solve it as if it were a linear equation in the end you get: a^n = 4n + 1

6 0
3 years ago
If a figure has been dilated by a scale factor of 1/3 which transformation could be used to prove the figures are similar using
Vlad [161]

Answer:

A translation because it can map one angle onto another since dilation preserve angle measures of triangles.

Step-by-step explanation:

In order to prove the two triangles by AA postulate, we must meet the conditions of the AA similarity postulate that says-

"Two triangles that have two congruent angles are similar".

So, we have to prove at least two corresponding angles of the given two triangles congruent.

One triangle is the dilation of the other. When we dilate a figure, the things that change are:

1. Lengths - Dilation changes the lengths of each side of the figure.

2. Size - Dilation changes the size of the figure.

When we dilate a figure, the things that do not change are:

1. Orientation - Dilation preserve orientation

2. Angles - Dilation preserves the interior angles of the figure.

So, the transformation that will preserve both orientation and angles will be used to prove triangles similarity using AA postulate.

A translation because it can map one angle onto another since dilation preserve angle measures of triangles.

A translation only moves the entire figure and thus we can overlap the vertices of the triangle and find whether the angles are congruent or not.

With the translation we will prove that other pair of angles of the triangles are congruent and thus the two triangles can be proved similar using the AA similarity postulate.

5 0
3 years ago
Read 2 more answers
Dylan and Sam share a group of baseball cards in a ratio of 8:3. If Sam has 15 baseball cards, how many does Dylan have?
Marrrta [24]

Answer:

For every 3 cards that Sam has, Dylan has 8. So if Sam has 15 (3x5), then Dylan has 40 (8x5).

8 0
3 years ago
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