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Anna11 [10]
4 years ago
13

What is the volume of a rectangular pyramid with a 10" base and an 8" base and a 12" height?

Mathematics
2 answers:
Assoli18 [71]4 years ago
8 0

Answer:

320in^3

Step-by-step explanation:

V=lwh/3

V=(10)(8)(12)/3

V=960/3

V=320

makvit [3.9K]4 years ago
8 0

For this case we have by definition, that the volume of a rectangular pyramid is given by:

V = \frac {a * b * h} {3}

Where:

a, b: Are the sides of the rectangular base

h: It's the height of the pyramid

Substituting the values:

V = \frac {10 * 8 * 12} {3}\\V = \frac {960} {3}\\V = 320

Thus, the volume of the pyramid is 320 cubic inches

Answer:

320 \ in ^ 3

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According to the Rational Root Theorem, which could be a factor of the polynomial f(x) = 6x4 – 21x3 – 4x2 + 24x – 35?
forsale [732]
Answer: (2x – 7) (3x^3 – 2x – 5)

SOLVINGS
Given the polynomial f(x) = 6x^4 – 21x^3 – 4x^2 + 24x – 35

The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q   then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient


In this case, 
The Leading Coefficient is 6
The Trailing Constant is -35.

Factors of the Leading Coefficient are 1, 2, 3 and 6
Factors of the Trailing Constant are 1, 5, 7, and 35

Testing for the rational roots,
If P= 7 and Q = 2
P/Q = 3.5
F (P/Q) = 0.00

Using the Factor Theorem; which states that if P/Q is root of a polynomial then this polynomial can be divided by Q.x – PTherefore, the polynomial 6x^4 – 21x^3 – 4x^2 + 24x – 35 is divisible by 2x –
7

Factorizing 2x – 7
Divide the polynomial into two groups (6x^4 – 21x^3 and – 4x^2 + 24x – 35)

Factorizing Group 1
6x^4 – 21x^3 divided by 2x – 7 = 3x^3
 ∴ 6x^4 – 21x^3 = 3x^3 (2x – 7)                ….. (Group 1)

Factorizing Group 2
– 4x^2 + 24x – 35 divided by 2x – 7 = -2x+5
∴ 4x^2 + 24x – 35 = (-2x+5)(2x – 7)        ….. (Group 2)

Bringing together Groups 1 and 2
6x^4 – 21x^3 – 4x^2 + 24x – 35 = (2x – 7) (3x^3 – 2x – 5)
3 0
4 years ago
Read 2 more answers
Convert y = x^2 + 2x - 5 into the form y-k = a( x- h)^2
leva [86]

Answer:

y+6=(x+1)^{2}

Step-by-step explanation:

we have

y=x^{2}+2x-5

This is the equation of a vertical parabola open upward (because the leading coefficient is positive)

The vertex is a minimum

The equation of a vertical parabola into vertex form is

y-k=a(x-h)^2

where

(h,k) is the vertex of the parabola

Convert the equation into vertex form

Move the constant term to the left side

y+5=x^{2}+2x

Complete the square

y+5+1=x^{2}+2x+1

y+6=x^{2}+2x+1

Rewrite as perfect squares

y+6=(x+1)^{2}

therefore

a=1\\h=-1\\k=-6

The vertex is the point (-1,-6)

7 0
3 years ago
I need help Please help thank you <3
Llana [10]
The answer is D. 1.601 * 10^9
7 0
3 years ago
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How many 5 person committees can be made from 10 people?
never [62]
There could be 2 committes. 10 divided by 5 equals 2
8 0
3 years ago
The difference of d minus 3 divided by 2
Eduardwww [97]

Answer:

(d-3)/2

Step-by-step explanation:

Difference is subtraction

(d-3)/2

6 0
3 years ago
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