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Arte-miy333 [17]
3 years ago
7

Which conjunction or disjunction is equivalent to the open sentence |a – 9| ≤ 4.

Mathematics
1 answer:
xenn [34]3 years ago
3 0
The absolute value inequality is equivalent to
  ±(a - 9) ≤ 4
When the minus sign is chosen and the expression is multiplied by -1, the comparison operator is reversed and the expression becomes
  a - 9 ≥ -4

The solution spaces of
  a - 9 ≤ 4
  a - 9 ≥ -4
overlap, so the solution is the conjunction of the two inequalities. This matches selection ...
  D.   a - 9 ≤ 4 and a - 9 ≥ -4

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Solve the system of equations<br> 12x-5y=-20<br> y=x+4<br><br> x=_______<br><br> y=_______
pashok25 [27]

Answer:

x = 0

y = 4

Step-by-step explanation:

Given

12x - 5y = -20

y = x + 4

Substitute x + 4 for y in the first equation

12x - 5(x + 4) = -20

Expand the bracket

12x -5 X x - 5 x 4 = -20

12x - 5x - 20 = -20

7x - 20 = -20

Add 20 to both sides to eliminate -20 on the left side

7x - 20 + 20 = -20 + 20

7x = 0

Divide both sides by 7 to isolate x

7x/7 = 0/7

x = 0

Substitute 0 for x in either equation to get y

Using equation 2, we have

y = x + 4

= 0 + 4

= 4

x = 0

y = 4

3 0
3 years ago
Find the midpoint of the line segment joining points A and B.<br> A(2,- 7); B(2,3)
Ad libitum [116K]

Answer: (2, -2)

Step-by-step explanation:

\left(\frac{2+2}{2}, \frac{3-7}{2} \right)=(2,-2)

8 0
1 year ago
Read 2 more answers
Help me (question attached)
Verizon [17]

Answer:

a. ⅓ × 4

b. ⅖ × 3

c. ⅙ × 3

Step-by-step explanation:

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6 0
2 years ago
what is the total weight of the italian Sandwhich?write the amount as a fraction in simplest form,meat:0.35,vegie:0.15,sauce:0.0
Olegator [25]
The total weight of the Italian sandwich in its simplest fraction is 3/5.

meat      : 0.35  in fraction 35/100
veggies : 0.15 in fraction 15/100
sauce    : 0.05 in fraction 5/100
bread     : 0.05 in fraction 5/100

Total weight = 35/100 + 15/100 + 5/100 + 5/100
                    = (35 + 15 + 5 + 5) / 100
                    = 60/100

To simplify the fraction:

60/100 ⇒ 60 ÷ 10 = 6 ; 100 ÷ 10 = 10 ⇒ 6/10
6/10 ⇒ 6 ÷ 2 = 3 ; 10 ÷ 2 = 5 ⇒ 3/5

7 0
3 years ago
Read 2 more answers
FAST!!
fgiga [73]

Answer:

a b and d

Step-by-step explanation:

6 0
3 years ago
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