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sladkih [1.3K]
4 years ago
12

Please answer quickly!!!!

Mathematics
1 answer:
Natalka [10]4 years ago
5 0
The volume of the rectangular prism can be found with the formula
v= length × width × height
V = 10×10×30 = 3000

the volume of the triangular prism can be found with
v = 1/2(base×width×height)
v=1/2×30×9×10 = 1/2×2700
v = 1350

Now add the two volumes together for the total volume...

3000+1350 = 4,350 in^3
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Step-by-step explanation:
Surface area =S
To find the surface area we have to apply formula :S=(2×Base Area) +(base prism×height)
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8 0
2 years ago
Suppose T(n) = n(n +1)/2. Find T(10).
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Answer:

D. 55

Step-by-step explanation:

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4 years ago
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exis [7]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the approximate distance between the points (-3, -4) and (-8, 1) on a coordinate grid? A. 11.40 units B. 7.07 units C. 3
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The formula of the distance between two points:

A(x_A;\ y_A);\ B(x_B;\ y_B)\\\\|AB|=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}

We have:

A(-3;-4);\ B(-8;\ 1)

substitute:

|AB|=\sqrt{(-8-(-3))^2+(1-(-4))^2}=\sqrt{(-8+3)^2+(1+4)^2}\\\\=\sqrt{(-5)^2+5^2}=\sqrt{25+25}=\sqrt{25\cdot2}=\sqrt{25}\cdot\sqrt2\\\\=\boxed{5\sqrt2\approx7.07}

Answer: B. 7.07
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3 years ago
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aivan3 [116]

Answer:

- 9

Step-by-step explanation:

Substitute x = - 3 into the expression

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= 9 + 6 - 24

= 15 - 24

= - 9

3 0
3 years ago
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