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4 years ago

TheSolution to the equation is ??

Mathematics

1 answer:

spayn [35]4 years ago

5 0

Answer:

X = 1

Step-by-step explanation:

2x^2 + x - 1 = 2

2x^2 + x - 3 = 0

2x^2 + 3x -2x - 3 = 0

x(2x+3) -1 ( 2x+3) = 0

(x-1) (2x+3) = 0

x-1=0

x=1

2x+3=0

2x=-3

x=-3/2.

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What is the radical of 63

dsp73

√63
= √(3^2 * 7)
= √(3^2) * √7
= 3 * √7
= 3√7

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3 years ago

Tell whether a triangle can have sides with the

Dmitry [639]

Answer:

$3x+2 \ne x^2 \ne 2x$ for $x = 4$

Step-by-step explanation:

Given

Shape: Triangle

Dimension: 3x + 2, x^2 and 2x

$x = 4$

Required

Determine if it has equal sides

To do this, we simply substitute 4 for x in the given dimensions

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$3x + 2 = 3 * 4 + 2$

$3x + 2 = 12 + 2$

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x^2

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8 0

3 years ago

A rectangular prism has a length of 8 meters, a width of 6 meters, and a height of 3 meters.

harina [27]

I is (B)
L • W • H
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4 0

3 years ago

What is the solution ro thos inequality -4x-8>-20

bixtya [17]

Answer:

Inequality Form:

x < 3

Interval Notation:

( − ∞ , 3 )

Step-by-step explanation:

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6 0

3 years ago

Help thanksSSSSSSSSSS

Setler79 [48]

Answer:

$\boxed{\sf{x=24}}$

Step-by-step explanation:

GIVEN:

To find the missing number in the proportion, you have to isolate it the term of x from one side of the equation.

$\sf{\dfrac{8}{7}=\dfrac{x}{21} }$

First, thing you do is switch sides.

$\sf{\dfrac{x}{21}=\dfrac{8}{7} }$

Multiply by 21 from both sides.

$\Longrightarrow: \sf{\dfrac{21x}{21}=\dfrac{8*21}{7} }$

Solve.

Multiply the numbers from left to right.

Use the order of operations.

PEMDAS stands for:

Parentheses
Exponents
Multiply
Divide
Add
Subtract

$\Longrightarrow: \sf{\dfrac{8*21}{7}=\dfrac{168}{7}=24 }$

$\Longrightarrow: \boxed{\sf{x=24}}$

Therefore, the final answer is x=24.

I hope this helps. Let me know if you have any questions.

3 0

2 years ago