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Inessa05 [86]
1 year ago
5

(2x-y< -7 x-y≥-6 determine if (-10,5) is a solution to system

Mathematics
2 answers:
gtnhenbr [62]1 year ago
6 0

Answer:

not a solution

Step-by-step explanation:

to determine if (- 10, 5 ) is a solution to the system of inequalities.

substitute the coordinates of the point into the left side of both inequalities and compare the result to the right side.

Both inequalities must be true for the point to be a solution.

2x - y = 2(- 10) - 5 = - 20 - 5 = - 25 < - 7 ← true

x - y = - 10 - 5 = - 15 < - 6 ← false

since both inequalities are not true then (- 10, 5 ) is not a solution

prohojiy [21]1 year ago
5 0

Answer:

no

Step-by-step explanation:

2 · (-10) -5 < -7

-20 - 5 < -7

-25 < -7

ok


-10 -5 ≥ -6

-15 ≥ -6

false

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Rampur Sarpanch requested one of his villager to donate a 6m wide land adjusted to his 132.8m long side of his right triangular
Furkat [3]

Answer:

The answer is 3030.72 m³

Step-by-step explanation:

Please refer to attached file for graphical representation.

Formulas used:

Area = (a*b)/2

Trigonometry: Tan (t) = opposite/adjacent

Assume:

Villager plot has 3 sides: hypotenuse=C, adjacent=A, opposite=B

Plot given has 3 sides: hypotenuse=z, adjacent=y, opposite=x

Angle common between them is t.

<u>Step 1</u>:

For t:

Tan (t) = a/b

Tan (t) = 123/50

Tan (t) = 2.46

<u>Step 2:</u>

For y:

Tan (t) = y/x

2.46 = y/6

y = 2.46*6

y = 14.76

<u>Step 3:</u>

Villagers old plot area: B = (a*b)/2 = (123*50)/2

B = 3075 m³

<u>Step 4:</u>

Plot donated area: C = (x*y)/2 = (6*14.76)/2

C = 44.28 m³

<u>Step 5:</u>

Villager remaining plot:

A = B-C

A= 3075-44.28

A = 3030.72 m³

Download docx
7 0
4 years ago
The equation 3s=21 can be used o find the number of students s in each van on a field trip. How many students are in each van?
Margaret [11]

s=7

3(7)=3×7

3×7=21

7 students

7 0
4 years ago
Can somebody help me please.
kow [346]

Answer:

I think it is c too :))))))))

6 0
3 years ago
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Answer:

1,YES   2,NO   3,YES   4,YES   5,NO   6,NO

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Step-by-step explanation:

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3 years ago
What is3\8 +5/2 need help
scoray [572]
3/8 + 5/2
=3/8 + 20/8
= 23/8
or
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3 years ago
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