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Blizzard [7]
3 years ago
8

Only if you know. Please help !

Mathematics
1 answer:
garri49 [273]3 years ago
8 0
A. Focus

Hope that helps!
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The value of 21b - 32 + 7 b - 20 b is​
Aleonysh [2.5K]
8b - 32

Hope it’s right
Best luck with your studying
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3 years ago
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Which sum will be neither positive nor negative. a. 3+2 b. -4+(-4) c. -6+6 d. 7+(-6)​
anastassius [24]

Answer:

c

Step-by-step explanation:

6 0
3 years ago
Target sells 24 bottles of water for $3 and thirty six bottles of water for $4 which is a better buy
GenaCL600 [577]

Answer:24/3=8 and 36/4=9

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3 years ago
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What is the surface area to volume ratio of a 5 cm cube?
joja [24]
Answer: 6/5

Explanation:
Given: 5cm cube
This means each side is 5 cm because a cube has equal sides.

Area of a square is length times width so area of 1 side of a cube:
= 5 x 5
= 25

Surface area is the area of one side of a cube times the number of sides. Now, how many sides does a cube have? 6
= 25 x 6
= 150

Surface area of a 5cm cube = 150

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6 0
3 years ago
What are the approximate values of the non-integral roots of the polynomial equation?
irga5000 [103]

Answer:

-4, -2, -3-2i, -3+2i

Step-by-step explanation:

The of the polynomial equation are those values of x, for which f(x)=0.

Consider equation

f(x)=0\\ \\(x^2+6x+8)(x^2+6x+13)=0

By zero product property,

x^2+6x+8=0\ \text{or}\ x^2+6x+13=0

Solve each equation:

1. x^2+6x+8=0

D=6^2-4\cdot 8=36-32=4\\ \\x_{1,2}=\dfrac{-6\pm \sqrt{4}}{2}=\dfrac{-6\pm 2}{2}=-4,\ -2

2. x^2+6x+13=0

D=6^2-4\cdot 13=36-52=-16=16i^2\\ \\x_{1,2}=\dfrac{-6\pm \sqrt{16i^2}}{2}=\dfrac{-6\pm 4i}{2}=-3-2i,\ -3+2i

5 0
3 years ago
Read 2 more answers
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