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Karo-lina-s [1.5K]
3 years ago
9

Which value or values for the variable c from the set below will make 2 + 0.5c < 2c true

Mathematics
1 answer:
Tcecarenko [31]3 years ago
7 0
B should be the answer but I’m not that sure
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The perimeter of a rectangle is about 13.9 cm. If you double the width of the rectangle the perimeter is about 17.8 cm. Find the
fredd [130]

Answer:

5cm by 1.95cm

Step-by-step explanation:

Let the length of the rectangle be x

Let the width be y

Perimeter of a rectangle = 2x + 2y

If the initial perimeter of a rectangle is about 13.9 cm, then;

13.9 = 2x + 2y ..... 1

If when the width is double the perimeter is 17.8cm, then;

17.8 = 2x + 4y ..... 2

Subtract 1 from 2;

13.9 - 17.8 = 2y - 4y

- 3.9 = -2y

y = 3.9/2

y = 1.95 cm

Substitute y = 1.95 into 1 to get x;

From 1;

13.9 = 2x + 2y

13.9 = 2x + 2(1.95)

13.9 = 2x + 3.9

2x = 13.9-3.9

2x = 10

x = 5 cm

Hence the dimension of the smaller triangle is 5cm by 1.95cm

7 0
3 years ago
What are two different ways of factoring -3x - 9? Select all that apply.
sergiy2304 [10]

Answer:

The correct answer is A and C.

5 0
3 years ago
Read 2 more answers
How do you cut a right triangle to make 1 pentagon and 2 triangles
Tanya [424]
Cut only to ends of the triangle off then it will have a pentagon with the uncut shape
7 0
3 years ago
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Given the definitions of f(x) and g(x) below, find the value of (gºf)(-5).
jolli1 [7]

Answer:

(g ○ f)(- 5) = 4

Step-by-step explanation:

evaluate f(- 5) then substitute the value obtained into g(x)

f(- 5) = (- 5)² + 6(- 5) + 3 = 25 - 30 + 3 = - 2 , then

g(- 2) = 2(- 2) + 8 = - 4 + 8 = 4

(g ○ f)(- 5) = 4

5 0
2 years ago
A pipe is 30 feet long. It needs to be cut into pieces that are each 2/3 feet long. How many pieces can be made from the pipe? W
salantis [7]
Divide total length by length of each piece to get the number of pieces.

= 30 ÷ 2/3
multiply by reciprocal of 2/3
= 30 * 3/2
= 90/2
= 45

ANSWER: Total number of pieces that can be cut is 45.

Hope this helps! :)
7 0
3 years ago
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