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n200080 [17]
3 years ago
12

How many real solutions does the equation x^2 + bx + 4 = 0 have if b >0

Mathematics
1 answer:
Nitella [24]3 years ago
7 0

The answer will be c

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Can 5yd, 12yd, 13,yd can it form a right triangle
HACTEHA [7]

Answer:

First one can

Second one can not

Step-by-step explanation:

13² = 5² + 12²

169 = 25 + 144

169 = 169 is a true statement

15² = 11² + 12²

225 = 121 + 144

225 = 265 is a false statement

So, not a right angle triangle

7 0
3 years ago
What is the sign of -1042 + 1042?
pentagon [3]

Answer:

Its a negative and it will equal -2804

7 0
4 years ago
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A building in the shape of a rectangular prism needs to be painted. Some facts about the building are shown below.
algol [13]

Answer:

(2)(120)(80) + (2)(120)(50) - (4)(60)(5²)

Step-by-step explanation:

The lateral faces of the building are the 4 sides of the building consisting:

2 rectangles of 120 ft by 80 ft

Area of the two rectangular faces = (2)(120)(80)

And

2 rectangles of 120 ft by 50 ft

Area of the two rectangular faces = (2)(120)(50)

✔️Total lateral surface area of the building = (2)(120)(80) + (2)(120)(50)

Note: we are asked to find the expression that represents the total surface area that needs to be painted given that there are 60 windows on each lateral face of the building of the shape of a square with side lengths of 5 ft.

Therefore, the total lateral surface area of the building that will be painted = total lateral surface of the building - total area covered by the 60 windows on each face of the building

Surface area covered by 60 windows in the 4 lateral face of the building = (4)(60)(5²)

✅total lateral surface area of the building that will be painted = (2)(120)(80) + (2)(120)(50) - (4)(60)(5²)

3 0
3 years ago
Please help. If f(x)= 2^x-1+3 and g(x)=5x-9 what is (f-g)(x)??
Readme [11.4K]

( f + g ) (x) = –2x + 6

( f – g ) (x) = 8x – 2

( f  × g ) (x) = –15x2 + 2x + 8

<span>\mathbf{\color{purple}{ \left(\small{\dfrac{\mathit{f}}{\mathit{g}}}\right)(\mathit{x}) = \small{\dfrac{3\mathit{x} + 2}{4 - 5\mathit{x}}} }}<span><span>(<span><span>​g</span>​<span>​f</span><span>​​</span></span>)</span>(x)=<span><span>​<span>4−5x</span></span>​<span>​<span>3x+2</span></span><span>​​</span></span></span></span>

4 0
3 years ago
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Can you guys help me pls
andrew11 [14]
The slope would be y/x = 3/1 = 3
4 0
3 years ago
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