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MAXImum [283]
3 years ago
6

What is the exact value for the expression the square root of 52− the square root of 13 + the square root of 117 ? Simplify if p

ossible.
Select one:
a. 4 the square root of 13
b. the square root of 13
c. 2 the square root of 39
d. 8 the square root of 39
Mathematics
1 answer:
avanturin [10]3 years ago
8 0

√52 -√13 +√117

= 2√13 -√13 +3√13

= 4√13 . . . . matches selection A

_____

√52 = √(4·13) = (√4)(√13) = 2√13

√117 = √(9·13) = (√9)(√13) = 3√13

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3 years ago
A triangular table top has a base that is twice as long as its height. If the area of the table surface is 324 square inches, wh
kenny6666 [7]

Answer:

Height is 18 inches.

Base is 36 inches.

Step-by-step explanation:

Let the base of the triangular table top be x inches.

The height will be \frac{1}{2}x inches.

The area of the triangular table top is 324 inches²

Area of a triangle = \frac{1}{2} × Base × Height

342 inches² = \frac{1}{2} × x × \frac{1}{2}x

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Finding the square root on both sides gives;

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Therefore x (the base) = 36 inches

And \frac{1}{2} (the height) = 18 inches.

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3 years ago
The balances in two separate bank accounts that grow each month at different rales are represented by the functions f(x) and gix
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Answer:

The balance in two separate bank accounts grows each month at different rates. the growth rates for both accounts are represented by the functions f(x) = 2x and g(x) = 4x 12. in what month is the f(x) balance greater than the g(x) balance?

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4 0
3 years ago
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A bag contains 100 marbles which are red, green, and blue. Suppose a student randomly selects a marble without looking, records
babunello [35]

Answer:

Firstly this is all about luck my predictions is impossible to be accurate

ANyways i think ther are 30 red,10 green and 60 blue

Step-by-step explanation:

7 red marbles, 2 green marbles and 11 blue marbles.

Firstly this is all about luck my predictions is impossible to be accurate

ANyways i think ther are 30 red,10 green and 60 blue

8 0
3 years ago
consider a polynomial f(x)=ax^3 + bx^2 + x + 2/3.if x + 3 is a factor of f(x) and f(x) is divided by x + 2, then we get remainde
Elanso [62]

Answer:

a = 2/27

b = 13/27

Step-by-step explanation:

The given polynomial is presented as follows;

f(x) = a·x³ + b·x² + x + 2/3

Given that x + 3 is a factor, we have;

f(-3) = 0 = a·(-3)³ + b·(-3)² - 3 +2/3 = 0

-27·a + 9·b - 3 + 2/3 = 0

-27·a + 9·b = 7/3........(1)

Also we have

(a·x³ + b·x² + x + 2/3) ÷ (x + 2) the remainder = 5

Therefore;

a·(-2)³ + b·(-2)² + (-2) + 2/3 = 5

-8·a + 4·b - 2 + 2/3 = 5

-8·a + 4·b = 2 - 2/3 = 4/3........(2)

Multiplying equation (1) by 4/9 and subtracting it from equation (2), we have;

-8·a + 4·b - 4/9×(-27·a + 9·b) = 4/3 - 4/9 × 7/3

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4·a = 8/27

a = 2/27 ≈ 0.0741

imputing the a value in equation (1) gives;

-27×2/27 + 9·b = 7/3

-2 + 9·b = 7/3

9·b = 7/3 + 2 = 13/3

b = 13/27 ≈ 0.481.

6 0
3 years ago
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