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Allushta [10]
3 years ago
10

Is (2, 2) a solution to the inequality 2x+5y< 20​

Mathematics
2 answers:
mojhsa [17]3 years ago
7 0

Answer:

yus

Step-by-step explanation:

Svetlanka [38]3 years ago
7 0

Answer:

Yes

Step-by-step explanation:

2(2) + 5(2) < 20

4 + 10 < 20

14 < 20

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Given: r(x) = x3 - 7, k(x) = 5 ln (2x) Find: (k ○ r) (x)
sergij07 [2.7K]

The value of (k ○ r) (x) from the given parameters in the task content is; 5 ln(2x³ -14)

<h3>What is (k ○ r) (x) from the task content?</h3>

If follows from the task content that;

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It therefore follows that;

(k ○ r) (x) = k(r(x)) = 5 ln (2(x³-7)).

On this note, the expression which represents (k ○ r) (x) is; 5 ln(2x³ -14).

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3 0
2 years ago
A cell phone tower in a field casts a shadow of 100 ft. at the same time, a 4 ft 6 in post near the tower casts a shadow of 3 ft
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3 years ago
Substitution method <br><br> x-7y=-9<br> -x+8y=10
max2010maxim [7]

Answer:

x = -2, y=1

Step-by-step explanation:

x-7y=-9---------------------equation 1

-x+8y=10-------------------equation 2

From equation 1, make x the subject of formula

x=7y-9----------------------equation 3

substituting x=7y-9 in equation 2,

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Expanding bracket

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substituting y=1 in 3

x=7(1)-9

x=7-9

x=-2

7 0
3 years ago
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