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Liono4ka [1.6K]
3 years ago
5

What is the value of the expression 2x^3 when x=-2 and y=3

Mathematics
2 answers:
cestrela7 [59]3 years ago
8 0

Answer:

2x^3

2*-2^3

2*-8

-16

therefore answer is -16

Degger [83]3 years ago
3 0
2(-2)^3
-4^3 (followed pemdas)
-4x-4x-4= -64

( I don’t know why the y is there since it isn’t in the equation? Maybe you didn’t get the whole equation
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A rectangle is drawn on a coordinate plane. Three vertices of the rectangle are points
igomit [66]

Answer:

4

Step-by-step explanation:

The distance from B to C is the same as the distance from A to D. Points B and C will both have the same x-value, as do points A and D. Points B and C will have the same difference in y-values (2 -(-2) = 4) that points A and D have.

The distance from B to C is 4 units.

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3 years ago
What percent of 180 is 45? A. 4.5% B. 18% C. 22% D. 25%
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Answer:

D. 25%

Step-by-step explanation:

45/180=0.25

0.25 into a percent is 25%

6 0
2 years ago
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Lera25 [3.4K]

x^2-9x-6=0


Use the quadratic formula to get (9+sqrt(105))/2 or (9-sqrt(105))/2


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3 years ago
Is 3.67676767 a irrational number
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3 years ago
Mr.Burn's class is taking aa field trip to the planetatium. The trip will $27 for each student. There are 18 students in his cla
mojhsa [17]
$27 x 18 students = 486 actual cost.

$30 x 10 students = 300 estimated total cost using compatible numbers.
$20 x 20 students = 400 estimated total cost using compatible numbers. (better option because it is nearer to the actual cost)

Compatible numbers are numbers that can easily be multiplied or divided using mental computation.

Compatible number for 27 and 18 can be: 30 and 20 OR 20 and 20 OR 30 and 10 OR 20 and 10.

However, there is a rule in multiplying the compatible numbers, when one number is increased the other number must be decreased.

So 27 can be increased to 30; while 18 can be decreased to 10 to get a product of 300.

27 can be decreased to 20; while 18 can be increased to 20 to get a product of 400.
4 0
3 years ago
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