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Naddika [18.5K]
2 years ago
9

A college writing seminar increased its size by 50% from the first to the second day. If the total number of students in the sem

inar on the second day was 15 how many students were in the class on the first day
Mathematics
2 answers:
slava [35]2 years ago
7 0
10 students on the first day
Cerrena [4.2K]2 years ago
7 0
20000 is the correct answer

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If a dart board was thrown randomly at the dartboard shown below, what is the probability that it will land in the bull’s-eye? T
vampirchik [111]

Answer:

Correct option: C -> 2%

Step-by-step explanation:

To find this probability we just need to divide the area of the bull's-eye circle by the total area of the outer circle.

The area of a circle is given by the equation:

area = \pi * radius^2

The outer radius is 14 cm, so:

outer\ area = \pi * 14^2 = 196\pi\ cm^2

The inner radius is 2 cm, so:

inner\ area = \pi * 2^2 = 4\pi\ cm^2

So the probability is:

inner\ area / outer\ area = 4\pi / 196\pi = 0.02 = 2\%

Correct option: C

3 0
3 years ago
Which statements are true? Check all that apply. All rectangles are squares. All rhombi are parallelograms. All squares are rhom
Ede4ka [16]

Answer:

All rhombi are parallelograms.

All squares are rhombi.

No trapezoid is a rectangle.

6 0
3 years ago
Which inverse operation would be used to verify the following equation? 102 ÷ 3 = 34
MA_775_DIABLO [31]
An inverse operations is the reverse of the equation. For example, since it's 102 ÷ 3 = 34, to get the inverse you would take the opposite sign of "÷" and make it "×," while changing the equal sign to make the statement true. The inverse operation used to verify this is 102 = 3 × 34
5 0
2 years ago
Prove ABC~EDC ?
erastova [34]

Answer:

AA similarity theorem

Step-by-step explanation:

we know that

<u>AA (Angle-Angle) Similarity</u> states that  In two triangles, if two pairs of corresponding angles are congruent, then the triangles are similar

In this problem we have that

∠BCA=∠ECD ----> by vertical angles

∠BAC=∠DEC ---> because AB is parallel to ED (alternate interior angles)

therefore

Triangles ABC and EDC are similar by AA similarity theorem

8 0
3 years ago
Which of the following is(are) the solution(s) to |5x+2|=8
iren [92.7K]

Option A.

Hope it helps.

6 0
2 years ago
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