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damaskus [11]
3 years ago
12

Which of the diagrams below represents the statement “if it is not warm, then it is not hot”?

Mathematics
2 answers:
madam [21]3 years ago
4 0

Answer:


Apex answer is a.


beks73 [17]3 years ago
3 0
You should really edit that to were there r diagrams

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The cost of a pizza with the works" is represented as a function of its
Nina [5.8K]

Answer:

diameter of the pizza = 21.88 centimeters

Step-by-step explanation:

Given:

C = d^2 – 2d + 447

where

C = cost of the pizza

d = diameter of the pizza

If the pizza costs $12.00, then what is a reasonable estimate for the diameter of the pizza?

12 = d^2 – 2d + 447

d^2 - 2d = 447 - 12

d^2 - 2d = 435

d^2 - 2d - 435 = 0

Solve the quadratic equation using formula

a = 1

b = -2

c = -435

d = -b +or- √b^2 - 4ac / 2a

= -(-2) +or- √(-2)^2 - (4)(1)(-435) / 2(1)

= 2 +or- √4 - (-1740) / 2

= 2 +or- √4 + 1740 / 2

= 2 +or- √1744 / 2

= 2 +or- 4√109 / 2

= 2/2 +or- 4√109/2

= 1 +or- 2√109

d = 1 + 2√109 or d = 1 - 2√109

= 1 + 2(10.44) or d = 1 - 2(10.44)

= 1 + 20.88 or d = 1 - 20.88

d = 21.88 or -19.88

diameter of the pizza = 21.88 centimeters

Therefore, the estimated diameter of the pizza can not be negative. So, diameter of the pizza = 21.88 cm

7 0
2 years ago
Solve each system by the addition method.
bagirrra123 [75]

Answer:

(x, y) = (2, -1.5)

Step-by-step explanation:

x + 2y = -1

5x - 4y = 16

<=>

(2)x + (2)2y = (2)(-1)

5x - 4y = 16

<=>

2x + 4y = -2

5x - 4y = 16

<=>

7x = 14

<=>

x = 2

(*)x + 2y = -1

=> 2 + 2y = -1

=> 2y = -3

=> y = -1.5

=> (x, y) = (2, -1.5)

6 0
3 years ago
The mass of Earth is made up of these parts.
Elena-2011 [213]

Answer:

1. atmosphere

2.oceans

3.crust

4.inner core

5. outer core

6.mantle

:)

8 0
3 years ago
The ratio of corresponding sides of the first triangle to the second triangle below is
Cloud [144]

Answer:

no

Step-by-step explanation:

8 0
2 years ago
2c + 7.5 = 6.2 - 3c a. 0.26 b. -0.26 c. -2.74 d. 1.3
Maurinko [17]

b

5c=6.2-7.5

then divide it :)

6 0
2 years ago
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