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1 year ago

What is the value of the expression 1.6(x−y)2 when x = 10 and y = 5?

Mathematics

2 answers:

Luba_88 [7]1 year ago

7 0

Answer:

1.6(10-5)2= 1.6(5)2= (8)(2)=16

Step-by-step explanation:

Deffense [45]1 year ago

7 0

Answer:

Step-by-step explanation:

<h3>Finding the value of expression:</h3>

Substitute x = 10 and y = 5 in the expression.

1.6(x - y)² = 1.6(10 - 5)²

= 1.6 * (5)²

= 1.6 * 25

= 40

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He completed 2 and 4/5 rows of grapes each hour he worked after completing 140 rows of grapes how many hours had he worked?

algol [13]

Step-by-step explanation:

Divide 140 by $2\frac{4}{5}$ to represent the amount of hours he worked.

To make dividing easier, $2\frac{4}{5}$ can also represent 2.8 as a decimal.

$\frac{140}{2.8} =50$

He has worked 50 hours after completing 140 rows of grapes.

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2 years ago

Which number is farthest to zero -167, -289, 67, 298

dangina [55]

Answer:

298

Step-by-step explanation:

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3 years ago

Which are the solutions of the quadratic equation? x2 = –5x – 3 –5, 0 StartFraction negative 5 minus StartRoot 13 EndRoot Over 2

boyakko [2]

<u>Given</u>:

The quadratic equation is $x^{2}=-5 x-3$

We need to determine the solutions of the quadratic equation.

<u>Solution</u>:

Let us solve the equation to determine the value of x.

Adding both sides of the equation by 5x and 3, we get;

$x^{2}+5 x+3=0$

The solution of the equation can be determined using quadratic formula.

Thus, we get;

$x=\frac{-5 \pm \sqrt{5^{2}-4 \cdot 1 \cdot 3}}{2 \cdot 1}$

$x=\frac{-5 \pm \sqrt{25-12}}{2 }$

$x=\frac{-5 \pm \sqrt{13}}{2 }$

Thus, the two roots of the equation are $x=\frac{-5 + \sqrt{13}}{2 }$ and $x=\frac{-5- \sqrt{13}}{2 }$

Hence, the solutions of the equation are $x=\frac{-5 + \sqrt{13}}{2 }$ and $x=\frac{-5- \sqrt{13}}{2 }$

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3 years ago

Read 2 more answers

What is the zero of the linear function graphed below?

nataly862011 [7]

Answer:

All lines, with a value for the slope, will have one zero.

Step-by-step explanation:

To find the zero of a linear function, simply find the point where the line crosses the x-axis. Zeros of linear functions: The blue line, y=12x+2 y = 1 2 x + 2 , has a zero at (−4,0) ; the red line, y=−x+5 y = − x + 5 , has a zero at (5,0) .

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3 years ago

Please help me with this question.

xeze [42]

Answer: -3 4/15
Explanation: Combine multiplied terms into a single fraction

Subtract 3 from both sides of the equation

Simplify

Multiply all terms by the same value to eliminate fraction denominators

Simplify

End Up With -52/15

Turn into a equivalent fraction

End Up With -3 4/15

5 0

3 years ago