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erastovalidia [21]
3 years ago
13

What can k equal so that 2kx-3k<2x+4+3kx to have no solution

Mathematics
1 answer:
const2013 [10]3 years ago
3 0
Answer: k = -2
solution: 2kx-3k<2x+4+3kx,
-3k-4<2x+3kx-2kx,
-3k-4<(k+2)x
Since this inequality has no solution, k = -2.
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Problems 7and 8 50 POINTS
Vinil7 [7]
Try to add "ft" or "in" next to your answer, making "8 ft" rather than 8. Otherwise, your answer is correct.
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Adalyn uses 1/5 cup of blue paint for every 2/5 cup of red paint to make purple paint. Enter the number of cups of blue paint Ad
ipn [44]

Given that;

Adalyn uses 1/5 cup of blue paint for every 2/5 cup of red paint to make purple paint.

\frac{1}{5}\text{ cups of blue paint }\rightarrow\frac{2}{5}\text{ cups of red paint}

For 1 cup of red paint, the amount of blue paints Adalyn will use is;

\frac{1}{5}\text{ cups of blue paint }\rightarrow\frac{2}{5}\text{ cups of red paint}

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10 months ago
There are 23 teacher in a school. How many students are there in the school, in equivalent ratio​
MrRa [10]

Answer:

Need more info

Step-by-step explanation:

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2 years ago
In parallelogram RSWY, find m
Oksanka [162]

Answer:

110 and 70

Step-by-step explanation:

opposite sides of parallelograms are equal so you can set 2x+30 equal to 5x-90

when you do this:

2x+30=5x-90

-2x      -2x

30=3x-90

+90    +90

120=3x

/3     /3

40=x

now you can plug 40 in for 5x-90

example:

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m<r=110

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5 0
2 years ago
The equation of a circle is given by (x + 3.5) ^ 2 + (y - 2.82) ^ 2 = 25 What is the area of a 52 degrees sector of this circle?
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Answer:

≈ 11.34 units²

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

(x + 3.5)² + (y - 2.82)² = 25 ← is in standard form

with r² = 25 ⇒ r = \sqrt{25} = 5

The area (A) of the sector is calculated as

A = area of circle × fraction of circle

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   = π × 25 × \frac{52}{360}

   = \frac{25(52)\pi }{360}

   ≈ 11.34 units² ( to the nearest hundredth )

3 0
3 years ago
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