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Law Incorporation [45]
2 years ago
5

Solve 2a 2 - 3a - 2 = 0 {-1/2, 2} {1/2, -2} {}

Mathematics
2 answers:
d1i1m1o1n [39]2 years ago
8 0
Apply slip and slide
a^2-3a-4
(a-4)(a+1)
(a-2)(2a+1)

Find zeros
a-2=0
a=2

2a+1=0
2a=-1
a=-1/2

Final answer: {-1/2, 2}
Igoryamba2 years ago
8 0
The answer is {-1/2, 2}
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Helo meeeeeeeeeeeeeeeeeeeee
Alenkinab [10]

Answer:

8 times 5 is 40

8 plus 32 is 40

21 divided by 3 is 7

21 minus 14 is 7

E makes no sense becayse you cant multiply 21 by anything to get 7

Step-by-step explanation:

3 0
2 years ago
The center of a circle lies on _____.
algol [13]
<h2>Answer:</h2>

A) every diameter

<em>The center of a circle lies on </em><em>every diameter.</em>

<h2>Explanation:</h2>

B) The circle: A circle is a two-dimensional shape where all points are the same distance from the center. So this definition doesn't match the definition of the center of the circle. The center is just a point not several ones.

C) A tangent line: obviously this definition is false. A tangent line is a line not a point.

D) Every chord: A chord is any line segment between two points on a circle. The only chord that passes through is the diameter. So this definition does not include all the chords of a circle

A) Every diameter: This is the correct option! A diameter is any chord that <em>passes through the center</em>.

4 0
3 years ago
What is the angle of angle x
Serhud [2]
Hi there,

your question is asking for the angle of the central circle, and the formula is: the two arcs' sum divided by 2

So,

(60 + 40) ÷ 2 = 50

The answer is 50°

Hope I helped :p
6 0
2 years ago
A bag contains 4 blue coins and 8 red coins. A coin is removed at random and replaced by three of the other color.
guajiro [1.7K]

the answer is 11/14 because you remove one blue coin and add three red coins and in total in the bag there are 14 coins. you then create a fraction by putting the 11 red coins over the 14 total coins to get the probability of what you will get

The answer is 11/14

6 0
3 years ago
What is the area of each piece of paper that Jodi is cutting out
Reptile [31]
The simplest (and most commonly used) area calculations are for squares and rectangles. To find the areaof a rectangle multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself tofind the area.
6 0
3 years ago
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