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Dima020 [189]
2 years ago
6

Solve the inequality 4i−4(i+2)≥6(8i−8) and write the solution in interval notation

Mathematics
1 answer:
devlian [24]2 years ago
5 0

Answer:

(-\infty,\frac{25}{24}]

Step-by-step explanation:

Assuming i is a variable:

4i-4(i+2)\geq6(8i-8)\\\\4i-4i+2\geq48i-48\\\\2\geq48i-48\\\\50\geq48i\\\\\frac{50}{48}\geq i\\ \\\frac{25}{24}\geq i\\ \\i\leq\frac{25}{24}\\ \\(-\infty,\frac{25}{24}]

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qaws [65]

i think its 112%

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7 0
3 years ago
The area of a trapezoid is
horrorfan [7]

Answer:

<h2>The answer is 15cm</h2>

Step-by-step explanation:

Let b be the length of the second parallel side

Area of a trapezium is given by

A =  \frac{1}{2} (a + b)h

where

h is the height

a and b are the parallel sides

From the question

Area = 230 cm²

height = 20cm

one of parallel side / a = 8 cm

Substitute the values into the above formula and solve for b

That's

230 =  \frac{1}{2} ( 8 + b) 20

Reduce the fraction with 2

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230 = (8 + b) \times 10

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Divide both sides by 10

We have the final answer as

<h3>b = 15cm</h3>

Hope this helps you

4 0
3 years ago
Find the value of k given that the line through (k,2) and (7,0) is perpendicular to the line y=x-28/5
Tanzania [10]
Y = x - 28/5. The slope here is 1. A perpendicular line will have a negative reciprocal slope. So our perpendicular line will have a slope of -1.

slope = (y2 - y1) / (x2 - x1)
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(7,0)...x2 = 7 and y2 = 0
sub
slope = (0 - 2) / (7 - k)
slope = -2 / ?......now if we want the slope to be -1..that means the number where the question mark is has to be 2....for that to happen, k has to be 5...because 7 - 5 = 2.

so ur answer is : k = 5
5 0
3 years ago
Read 2 more answers
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3 years ago
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aleksklad [387]

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* Hopefully this helps:)!! Mark me the brainliest:)!!

* Hopefully the picture also helps because it really helped me.

<em>∞ 234483279c20∞</em>

7 0
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