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3 years ago

What algebraic property is demonstrated in the equation? 3 + 2 (3x - 8) = 3+6x - 24

Mathematics

1 answer:

laiz [17]3 years ago

5 0

Distributive property. 2 is "distributed" among 3x and -8

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how much does britney need to buy 2 pearl bracelets and 2 emerald rings emerald ring price 6,395.00 Pearl bracelets prince 5,314

sineoko [7]

6,395.00 x 2 = 12,790

So $12,790 for the emerald rings.

5,314.00 x 2 = 10,628

So $10,628 for the pearl bracelets.

12,790 + 10,628 = 23,418

So $23,418.00 for all four pieces of jewelry.
Hope it helps!

7 0

3 years ago

Read 2 more answers

The figure is a parallelogram.one diagonal measures 28 units. Is the figure a rectangle? Explain

guajiro [1.7K]

Answer:

The parallelogram is not rectangle because the sides of the parallelogram do not meet at right angles.

Step-by-step explanation:

Given the parallelogram with sides 20 and 21 units with diagonal length 28 units.

we have to tell it is a rectangle or not.

The given parallelogram is rectangle if the angle at vertices are of 90° i.e the two triangle formed must be right angles i.e it must satisfy Pythagoras theorem

$28^{2}$ = $20^{2}$ + $21^{2}$

784=400+441=881

Not verified

∴ The sides of the parallelogram do not meet at right angles.

Hence, the parallelogram is not rectangle because the sides of the parallelogram do not meet at right angles.

Hope it helps

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5 0

3 years ago

Which is the best estimate for the sum 2/9 +10/11 ?

irakobra [83]

Answer:

Step-by-step explanation:

6 0

3 years ago

Please help, this will just take a minute of your time ❤︎ (literally)<br>(Discriminant Worksheet)

igomit [66]

Answer:

$\large\boxed{x=-\dfrac{7-\sqrt{97}}{4}\ \vee\ x=-\dfrac{7+\sqrt{97}}{4}}$

Step-by-step explanation:

$ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta0,\ \text{then an equation has two solutions:}\ x=\dfrac{-b\pm\sqrt\Delta}{2a}\\\\\text{We have:}\\\\-2x^2-7x+10=4\qquad\text{subtract 4 from both sides}\\\\-2x^2-7x+6=0$

$a=-2,\ b=-7,\ c=6\\\\\Delta=(-7)^2-4(-2)(6)=49+48=97>0\\\\\sqrt\Delta=\sqrt{97}\\\\x=\dfrac{-(-7)\pm\sqrt{97}}{2(-2)}=\dfrac{7\pm\sqrt{97}}{-4}=-\dfrac{7\pm\sqrt{97}}{4}$

6 0

3 years ago

What is the surface area of a rectangle 4/3 x 5/4 x 2/3

laila [671]

Answer:

surface area of rectangle= 2[(l+w) +(l+h). +(w+h)]

hope it helps

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3 years ago