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Leto [7]
3 years ago
12

8 points on this WUESTIONNNNNNNNNN

Mathematics
2 answers:
iren [92.7K]3 years ago
8 0

Answer:

Step-by-step explanation:

First you have to perform distributive property which is

2((x+6)=18) 2

Which will turn to

X+6=36

Then move the constant to the right so

X=36-6 then calculate

So the answer is 30

The value of x is 30

labwork [276]3 years ago
6 0

Answer:

x=30

Step-by-step explanation:

2 times 1/2(x+6)=18 times 2

x+6=36

x+6-6=36-6

x=30

whomever is reporting me please stop(echo2155)

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A shoreline observation post is located on a cliff such that the observer is 280 feet above sea level. The observer spots a ship
morpeh [17]

Answer:

Step-by-step explanation:

a) D/280 = tan(90 - 6)

   D = 280tan84 = 2,664 ft

b) D/280 = tan(90 - 16)

   D = 280tan74 = 976 ft

ship speed = (2664 - 976) / 43 = 39.2 ft/s

4 0
3 years ago
Hi I need help please
Nadusha1986 [10]

Answer:  14 7/8

Step-by-step

I put the 4 1/4 into an improper fraction then did keep change flip

4 0
3 years ago
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Beyonce danced around the track tree times. The track was 400 meters. How many kilometers did she dance all together
IRISSAK [1]

Answer: 1,200,000

Step-by-step explanation

1 meter is 1000 kilometers and the track is 400 meters long, so you must multiply 400*1000=400,000

She danced around 3 times s you must multiply 400,000*3=1,200,000

6 0
3 years ago
8x^(2)+16x=42 completeing the square
Yuri [45]
16
x
2
+
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x
=
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Step 2: Subtract 42 from both sides.
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−
42
16
x
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=
0
For this equation: a=16, b=16, c=-42
16
x
2
+
16
x
+
−
42
=
0
Step 3: Use quadratic formula with a=16, b=16, c=-42.
x
=
−
b
±
b
2
−
4
a
c
2
a
x
=
−
(
16
)
±
(
16
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2
−
4
(
16
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(
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2
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16
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x
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2944
32
x
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1
2
+
1
4
46
or
x
=
−
1
2
+
−
1
4
46
Answer:
x
=
−
1
2
+
1
4
46
or
x
=
−
1
2
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−
1
4
46
7 0
3 years ago
Find y<br> y= |x−5| + |x+5| (if x&gt;5)
velikii [3]

Answer:

y=2x if x>5.

Step-by-step explanation:

|x-5|=x-5 \text{ if } x-5 \ge 0. This means when x \ge 5.

|x-5|=-(x-5) \text{ if } x-5 \le 0. This means when x \le 5.

It doesn't matter where the 5 is included since either x-5 or -(x-5) would product 0 at x=5.

|x+5|=x+5 \text{ if } x+5 \ge 0. This means when x \ge -5.

|x+5|=-(x+5) \text{ if } x+5 \le 0. This means when x \le -5.

The same statement here about x=-5 as I about x=5 with the earlier expression.

So anyways we have x>5.

This means y=|x-5|+|x+5| can be rewritten as

y=(x-5)+(x+5)=(x+x)+(-5+5)=2x+0=2x.

y=2x

6 0
3 years ago
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