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anzhelika [568]
3 years ago
12

Who can help me with 5 math questions ? yes or no, and i will give them to you.

Mathematics
1 answer:
KatRina [158]3 years ago
3 0
I could but it depends on the questions
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What are 2 methods of used of collecting data?
wel
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6 0
3 years ago
PLZ HELP ME Solve -2z – 5 &gt; 3 for z.
Evgen [1.6K]

Answer:

z<-4

Step-by-step explanation:

-2z-5>3

Add 5 to both sides.

-2z>8

Divide both sides by -2.

Z<-4

The sign must change because you are dividing by a negative.

7 0
3 years ago
Use signed numbers to solve. A helicopter descended 1200 feet, rose 800 feet, and then descended 450 feet. What was the net gain
sergey [27]
The rise or an increase in altitude is represented by positive sign and a decend or decrease in altitude is represented by negative sign. 

First the helicopter descended 1200 feet. So the change in altitude will be -1200 feet.

Then the helicopter rose by 800 feet. So the change in altitude will be 800 feet.

Finally the helicopter descended by 450 feet. So the change in altitude will be -450 feet.

The net change in altitude will be the sum of all the above 3 changes. 
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The negative sign indicates a descend i.e. loss in altitude. So the net change in altitude was a loss of 850 feet. 
3 0
3 years ago
*A triangle has sides 42, 4x, and 2x−6. What is the possible range of x?
scoray [572]

Answer:

<h2>The Possible range for x is : ]8 , 18[</h2>

Step-by-step explanation:

To can draw this triangle if:

4x - (2x - 6) < 42 < 4x + (2x - 6)

solve inequality 1 :

4x - (2x - 6) < 42 ⇔ 2x + 6 < 42 ⇔ 2x < 36 ⇔ x < 18 (1)

Solve inequality 2 :

42 < 4x + (2x - 6) ⇔ 42 < 6x - 6 ⇔ 48 < 6x ⇔ 8 < x (2)

from (1) and (2) we deduce that : 8 < x < 18

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3 years ago
PLA HELP QUESTION IN PHOTO
asambeis [7]

Answer:

Step-by-step explanation:

its the first one

7 0
2 years ago
Read 2 more answers
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