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valentinak56 [21]
2 years ago
14

X^2+0x-1=0 what is the number of real solutions A.0 B.1 C.2

Mathematics
1 answer:
mash [69]2 years ago
8 0
X + 1 hope this hepls
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Find the surface area of the right triangular prism shown ​
Inessa05 [86]

The surface area of the triangular prism is 144 cm²

<u>Explanation:</u>

Given:

Base of the triangle = 4

Height of the triangle = 3

Hypotenuse of the triangle = 5

Length of the prism = 11

Surface area of the rectangular prism = ?

Surface area, A = ah+bh+ch+\frac{1}{2} \sqrt{-a^4 + 2(ab)^2 + 2(ac)^2 - b^4 + 2(bc)^2 - c^4}

On substituting the value, we get:

A = 4 X 11+ 3X11+5X11+\frac{1}{2} \sqrt{-(4)^2 + 2(4X3)^2 + 2(4X5)^2 - 3^4 + 2(3X5)^2-5^4} \\\\A = 144 cm^2

Therefore, the surface area of the triangular prism is 144 cm²

6 0
3 years ago
How are crabs and seashells different and how are they alike give more than one reason why give at least three examples!!!!!Plea
ipn [44]
Crabs are "alive" 
Seashells are just a "shell" as in the hard part of a crab is attached and part of the crab
You eat crabs but not seashells
8 0
3 years ago
Find A and B. Using the image above.
NeX [460]

Answer:

a = 7, b = \frac{7\sqrt{3} }{3}

Step-by-step explanation:

Using the sine ratio in the left right triangle and the exact value

sin45° = \frac{1}{\sqrt{2} } , then

sin45° = \frac{opposite}{hypotenuse} = \frac{a}{7\sqrt{2} } = \frac{1}{\sqrt{2} } ( cross- multiply )

a × \sqrt{2} = 7\sqrt{2} ( divide both sides by \sqrt{2} )

a = 7

--------------------------------------------------------

Using the tangent ratio in the right triangle on the right and the exact value

tan60° = \sqrt{3} , then

tan60° = \frac{opposite}{adjacent} = \frac{a}{b} = \frac{7}{b} = \sqrt{3} ( multiply both sides by b )

b × \sqrt{3} = 7 ( divide both sides by \sqrt{3} )

b = \frac{7}{\sqrt{3} } × \frac{\sqrt{3} }{\sqrt{3} } = \frac{7\sqrt{3} }{3}

7 0
2 years ago
Not Math, I know, but I'd like your opinion.
Gwar [14]

Answer:

I think that gives remind  us of how pictures lokked back then and because that is what they used back then and it tells me is old

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
ALGEBRAIC EXPRESSION Jeremy had $103 but he is spending $10 per week
Pie
103 ÷ 10 = x
x = how many weeks until all his money is gone? (besides the $3 at the end)
5 0
3 years ago
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