All categories

4 years ago

Which conjunction or disjunction is equivalent to the open sentence

1 answer:

4 0

All you need is to solve the problem
4-2|n+6|>=2
subtracting 4 from both sides
-2|n+6|>=-2
dividing by -2 and flipping sign of inequality
|n+6|<=1
-1<=n+6<=1 subtracting 6 from both sides
-7<=n<=-5
the conjunction will be -7<=n and -5>= n
which is choice a

You might be interested in

Solve for x. x + 7/-3 = 1 A) -10 B) - 22 3 C) - 3 7 Eliminate D) 4

Dimas [21]

Answer:

x = 10/3

x = 3 1/3

(3 whole number, 1/3)

Step-by-step explanation:

To solve for x, we just simplifying the expression.

Be mindful of the signs!

Let's go on now!

x + 7/-3 = 1

Begin by Multiplying all through by -3.

The expression becomes:

(-3 * x) + (7/-3) * -3 = 1 * -3

-3x + 7 = -3

-3x = -3 -7

-3x = -10

Divide both sides by the coefficient of x.

x = -10 / -3

x = 10/3

x = 3 1/3

(3 whole number, 1/3)

Maths is fun !

3 0

4 years ago

A toy box contains eight green balls and four purple balls. Suppose you choose a ball at random and then replace it by putting i

dedylja [7]

Answer: C. $\dfrac{1}{3}$

Step-by-step explanation:

Given: Box contains 8 green balls and 4 purple balls.

Total balls = 8+4 = 12

event 1 = first picking green ball

event 2 = second picking purple balls.

As first ball was replaced, that means both events are independent.

Probability that you have selected a green ball and then a purple ball = P(purple ball )

Formula for probability = $\dfrac{\text{favorable outcomes}}{\text{total outcomes}}$

Probability of selecting a purple ball (second pick)= $\dfrac{4}{12}$

$=\dfrac{1}{3}$

The required probability $=\dfrac{1}{3}$ , so C is correct option.

3 0

3 years ago

Answer please to the best of your ability

jonny [76]

Answer:

1.8 m

Step-by-step explanation:

h(T)=-9.8T^2+20T+1

just replace the T with 2

h=-9.8(2^2)+20(2)+1

-9.8×4+40+1=1.8m

1.8m

8 0

3 years ago

Frederick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin.

Maru [420]

Answer:

there you goooo- kitkat

Step-by-step explanation:

For the experimental outcomes to be closer to the predicted outcome, the number of trials should be increased.

If the number of trials is changed, the experimental probability also changes.

If the number of trials is changed, the predicted number of outcomes also changes.

If the number of trials is changed, the number of experimental outcomes also changes.

3 0

3 years ago

Read 2 more answers

Describe the end behavior of the function f(x)=-2x^4- x^3 +3.

Hoochie [10]

Answer:

Step-by-step explanation:

For a polynomial , the behaviour as x gets large is determined by the term of greatest degree,

f(x) = - 2 $x^{4}$ - x³ + 3

Is of even degree with a negative leading coefficient , then

f(x) → - ∞ as x → + ∞ and f(x) → - ∞ as x → - ∞

6 0

2 years ago