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QveST [7]
3 years ago
14

Solve the equation 2x^2 + 5x – 8 = 5/2x + 20 by writing a linear-quadratic system and solving using the intersection feature of

a graphing calculator. Round to the nearest tenth.

Mathematics
2 answers:
Annette [7]3 years ago
5 0

Answer: it is A.

Step-by-step explanation:

NNADVOKAT [17]3 years ago
4 0

Answer:

Option (A)

Step-by-step explanation:

2x² + 5x - 8 = \frac{5}{2}x + 20

2(2x² + 5x - 8) = 2(\frac{5}{2}x+20)

4x² + 10x - 16 = 5x + 40

4x² + 10x - 5x - 16 - 40 = 0

4x² + 5x - 56 = 0

By using graphing calculator,

x - intercepts are,

x = -4.4 and x = 3.2

Therefore, Option (A) will be the correct option.

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djyliett [7]

 pass

Step-by-step explanation:

5 0
2 years ago
Complementary angles definition geometry
sesenic [268]
Two angles that added together equal 90 degrees
6 0
3 years ago
Sonya has 140 beads. how many bags of 10 beads does she need so that she will have 200 beads in all
Vikentia [17]
If Sonya already has 140 beads, she needs 60 beads in order to have a total number of 200 beads. You have to find how many bags (that hold 10 beads) are needed to add up to 60.

140 + 10x = 200
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Sonya needs 6 bags 
7 0
3 years ago
Read 2 more answers
Twice as many students are in the chess club as in the fencing club.The number of students in the fencing club is one fifth the
jekas [21]

Answer:

28 students

Step-by-step explanation:

Let number of students in cooking club = x

Number of students in fencing club = 1/5 x

Number of students in chess club = 2(1/5)x

Since, There are 42 more students in the cooking club than in the chess club

Then ;

Number of students in chess club = Number of students in cooking club - 42

2(1/5)x = x - 42

(2/5)x - x = - 42

(2/5)x - x = - 42

-0.6x = - 42

x = 42 / 0.6

x = 70

Hence, number of students in chess club :

(2/5) * 70 = 28

4 0
3 years ago
Evaluate the following algebraic expression for 2x - 2
Alina [70]

Answer:

2(x-1)

Step-by-step explanation:

1. uncountable noun. You can use stuff to refer to things such as a substance, a collection of things, events, or ideas, or the contents of something in a general way without mentioning the thing itself by name. [informal] I'd like some coffee, and I don't object to the powdered stuff if it's all you've got.

8 0
3 years ago
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