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4 years ago

Can somebody help me on this please on this 9x+7y+6 (x+2y)

Mathematics

1 answer:

Ipatiy [6.2K]4 years ago

4 0

The answer is 10x+9y+6 if your trying to combine all like terms.

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Sun Lei bought a laptop computer for $1800.

vekshin1

Subtract to find the amount of tax paid:

1890 - 1800 = 90

Divide the amount of tax by the price of the computer:

90 / 1800 = 0.05

Multiply the decimal by 100:

0.05 x 100 = 5%

The tax rate is 5%

6 0

4 years ago

2√72 + 5√242 what is the answer for this question please can u tell me the right answer

Radda [10]

Answer:

67 $\sqrt{2}$

Step-by-step explanation:

Assuming you require to simplify the expression.

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Simplifying the radicals

$\sqrt{72}$ = $\sqrt{36(2)}$ = $\sqrt{36}$ × $\sqrt{2}$ = 6 $\sqrt{2}$

$\sqrt{242}$ = $\sqrt{121(2)}$ = $\sqrt{121}$ × $\sqrt{2}$ = 11 $\sqrt{2}$

Then

2 $\sqrt{72}$ + 5 $\sqrt{242}$

= 2(6 $\sqrt{2}$ ) + 5(11 $\sqrt{2}$ )

= 12 $\sqrt{2}$ + 55 $\sqrt{2}$

= 67 $\sqrt{2}$

6 0

3 years ago

Type the expression that results from the following series of steps:<br> Start with z and add 5.

Simora [160]

Answer:

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7 0

3 years ago

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What is the arc length of an angle of 7π6 radians formed on the unit circle?

Digiron [165]

The formula for arc length is S = ∅*r.
Where S is the arc length, ∅ is the angle measure in radians, and r is the radius of the circle.
S = *1
S =

4 0

4 years ago

Vinnie decorated 72 cookies in 36 minutes how many cookies did he decorate per minute

sineoko [7]

72 cookies per 36 minutes = 72/36
If both values are divided by 36:
2/1, or 2 cookies per (one) minute.

<span>Brainiest would be nice.</span>

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3 years ago

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