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4 years ago

Simplify 9x^2-3x(2x-4)-6x

Mathematics

1 answer:

Vinvika [58]4 years ago

3 0

The answer is
$3 x^{2} +6x$ 
Remember to combine like terms.
Hop this helps. c:

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sergey [27]

Answer:

There were 250 hamburgers sold on Saturday.

Step-by-step explanation:

∵ A local hamburger shop sold a combined total of 555 hamburgers

and cheeseburgers on Saturday

→ Assume that the shop sold x hamburgers

∵ The shop sold x hamburgers

∵ There were 55 more cheeseburgers sold than hamburgers

→ That means the number of cheeseburgers is greater than the

number of hamburger by 55

∴ The shop sold x + 55 cheeseburgers

∵ The shop sold 555 burgers

→ Add the two types of burgers and equate the sum by 555

∴ x + x + 55 = 555

∴ 2x + 55 = 555

→ Subtract 55 from both sides

∴ 2x + 55 - 55 = 555 - 55

∴ 2x = 500

→ Divide both sides by 2 to find x

∵ $\frac{2x}{2}$ = $\frac{500}{2}$

∴ x = 250

∵ x represents the number of hamburgers

∴ There were 250 hamburgers sold on Saturday.

6 0

3 years ago

What is the length of a cube has a volume of 0.2l6 ft^3

exis [7]

Answer:

0.6 ft

Step-by-step explanation:

The volume is the cube of the edge length, so the edge length is the cube root of the volume.

∛(0.216 ft³) = 0.6 ft

The edge length is 0.6 ft.

7 0

3 years ago

The leg of the hypotenuse of a right triangle is 13 cm. The length of one leg is 5 cm. Find the length of the other leg.

slavikrds [6]

A^2 + b^2 = c^2....and c is the hypotenuse

5^2 + b^2 = 13^2
25 + b^2 = 169
b^2 = 169 - 25
b^2 = 144
b = sqrt 144...if u take sqrt of both sides, it eliminates the ^2
b = 12....so the other leg is 12 cm.

5 0

3 years ago

Read 2 more answers

The number of years that Seth has been on the soccer team is 2 less than 5 times the number of years that Mark has. In total, th

Ganezh [65]

Answer:

Step-by-step explanation:

Should we be finding mark's years first?

7 0

3 years ago

Read 2 more answers

12 Using side lengths only, could the triangles be similar? 0.5 m05 1 1.5

Murljashka [212]

Answer:

$\large\boxed{\text{No.}\ \dfrac{0.5}{1}\neq\dfrac{1}{1.5}\neq\dfrac{1.5}{2}}$

Step-by-step explanation:

$\text{Let}\\ a,\ b,\ c\ -\ \text{sides of a triangle ABC, where}\ a\leq b\leq c\\d,\ e,\ f\ -\ \text{sides of a triangle}\ DE F,\ \text{where}\ d\leq e\leq f.\\\\\triangle ABC\sim\triangle DE F\iff\dfrac{a}{d}=\dfrac{b}{e}=\dfrac{c}{f}\\\\/\text{corresponding sides are in proportion}/$

$\bold{WARNING !!!}\\\\\text{No triangle like QRS exists!}\\\\1 + 0.5 = 1.5 !!!\\\\\text{The sum of the lengths of the two shorter sides of the triangle}\\\text{must be greater than the length of the longest side.}$

$\text{Despite this, let's check the ratios}$

$\text{We have:}\\\\\triangle XYZ\to a=1,\ b=1.5,\ c=2\\\triangle QRS\to d=0.5,\ e=1,\ f=1.5$

$\text{Check:}\\\\\dfrac{d}{a}=\dfrac{0.5}{1}=0.5\\\\\dfrac{e}{b}=\dfrac{1}{1.5}=\dfrac{10}{15}=\dfrac{2}{3}\\\\\dfrac{f}{c}=\dfrac{1.5}{2}=\dfrac{15}{20}=\dfrac{3}{4}\\\\\dfrac{d}{a}\neq\dfrac{e}{b}\neq\dfrac{f}{c}\neq\dfrac{d}{a}$

8 0

3 years ago