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marysya [2.9K]
3 years ago
12

2x34-783^6-89+984=please help

Mathematics
1 answer:
Lelechka [254]3 years ago
6 0

Answer:

8663

Step-by-step explanation:

2×34=68

7836-68=7768

7768-89=7679

7679+984=8663

i believe

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A cube has side length x. One side of the cube is increased by 4 inches, and another side is doubled. The volume of the new rect
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Let

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we have

2x^{3} +8x=450\\2x^{3}=450-8x

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x^{3}=225-4x

The system of equations is equal to

y=x^{3} --------> equation 1

y=225-4x --------> equation 2

using a graphing tool

see the attached figure  

we know that

the solution of the system of equations is the intersection both graphs

therefore

the solution is

x=5.86\ in

therefore

<u>the answer is</u>

5.86\ inches


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3 years ago
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Find the perimeter of a pantry shelf that measures 3 yards by 5/8 yard
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Answer:

7 1/4 yards or 7.25 yards

Step-by-step explanation:

3+3=6

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6+1 1/4=7 1/4 or 7.25

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The area of one triangle is 150 square centimeters when it's height is 20 centimeters and it's base length is 15 centimeters. Wh
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You (or your parents) have a realized income of $1,046.78/every 2 weeks. How much should the housing expense budget be to stay w
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Factor 3a^3 + 18a² + 8a + 48 completely.
fomenos

Answer:

(3a2 + 8) • (a - 6)

Step-by-step explanation:

STEP 1:

Equation at the end of step 1

 (((3 • (a3)) -  (2•32a2)) +  8a) -  48

STEP  2:

Equation at the end of step 2:

 ((3a3 -  (2•32a2)) +  8a) -  48

STEP 3:

Checking for a perfect cube

3.1    3a3-18a2+8a-48  is not a perfect cube

Trying to factor by pulling out :

3.2      Factoring:  3a3-18a2+8a-48

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1:  8a-48

Group 2:  -18a2+3a3

Pull out from each group separately :

Group 1:   (a-6) • (8)

Group 2:   (a-6) • (3a2)

              -------------------

Add up the two groups :

              (a-6)  •  (3a2+8)

Which is the desired factorization

Polynomial Roots Calculator :

3.3    Find roots (zeroes) of :       F(a) = 3a2+8

Polynomial Roots Calculator is a set of methods aimed at finding values of  a  for which   F(a)=0  

It would only find Rational Roots that is numbers  a  which can be expressed as the quotient of two integers

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  3  and the Trailing Constant is  8.

The factor(s) are:

of the Leading Coefficient :  1,3

of the Trailing Constant :  1 ,2 ,4 ,8

3 0
3 years ago
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