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artcher [175]
4 years ago
13

Explain how solving -7y > 161 is different from solving 7y > -161

Mathematics
2 answers:
lesantik [10]4 years ago
7 0

Answer:

Sample response:

Both inequalities use the division property to isolate the variable, y. When you divide by a negative number, like –7, you must reverse the direction of the inequality sign. When you divide by a positive number, like 7, the inequality sign stays the same. The solution to the first inequality is y > -23, and the solution to the second inequality is y <>

Alexxandr [17]4 years ago
4 0
There are different negatives and positives
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What is the equation of the line
olga2289 [7]

Answer:

It's the first choice y = (-5/2)x - 1.

Step-by-step explanation:

First find the slope of the line  5x + 2y = 12 by converting to slope-intercept form.

5x + 2y = 12

2y = -5x + 12

y = (-5/2)x + 6   so the slope is (-5/2).

The line we require had also a slope of -5/2 because it is parallel to the first line and it also passes through the point (-2, 4). So:

y - 4 = (-5/2)(x - -2)      (the point-slope form)

y - 4 = (-5/2)(x + 2)

y = (-5/2)x - 5 + 4

y = (-5/2)x - 1  (answer)

7 0
3 years ago
The figure shown is a rectangular prism. Which edges are parallel to HK ?
kolezko [41]

Line HK is the line of intersection between pllanes AMKH and HKDY.

Consider all given options:

1. Line PB is the line of intersection between pllanes APBM and PBDY. Since planes APBM || HKDY and AMKH || PBDY, then lines PB and HK are parallel.

2. Line AM is the line of intersection between pllanes APBM and AMKH. Since planes APBM || HKDY and parallel planes are cut by plane AMKH, then lines AM and HK are parallel.

3.  Line YD is the line of intersection between pllanes HKDY and AMKH. Since planes AMKH || PBDY and parallel planes are cut by plane HKDY, then lines YD and HK are parallel.

4. Lines HA and HK intersect each other at point H, thus they are not parallel.

5. Lines BM and HK  are not parallel, because MB || DK and DK intersect HK at point K.

Answer: correct choices are A, B, C.

4 0
3 years ago
Read 2 more answers
How many more questions do I have to answer before I can activate messages?!?!~will.mark.brainliest.~
MArishka [77]

Answer:

To my understanding, it's not a number.

Instead, it's a rank.

Try to answer questions until you rank up. Then you can chat.

3 0
3 years ago
If x + 3/4 = 1 , then which point on the number line could be x?
Levart [38]
Exact form: 1/4 Decimal form: 0.25
6 0
3 years ago
Hey guys can you help with this
777dan777 [17]

Step-by-step explanation:

use the formula of area of triangle .

if B=X then h=8+x

6 0
3 years ago
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