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2 years ago

8

suppose your restaurant bill comes to $28.35. Find your total cost if the tax 6.25% and you leave a 20% tip on the amount before

tax

1 answer:

Elden [556K]2 years ago

6 0

36.34 dollars 28.50*1.625=30.28*1.2=36.34

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Find the perimeter of ABC with vertices A (1,-6), B (1,-3),<br> and C (-4,-6).

Crazy boy [7]

Answer:

$p = 8 + \sqrt{34} = 13.83095...$

Step-by-step explanation:

we can easily calculate the perimeter of three points, using vectors. See the picture...

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2 years ago

A television company charges $60 for the first half-hour of work and $40 for each additional hour. Blue mountain camp has budget

Alexandra [31]

Answer:

For a length of total of 4 hrs, the budget of $200 will not exceed.

Step-by-step explanation:

Here, the first half hour charge for repairing = $60

The next hour charge = $40 her hour

Total budget to be spent by Blue Mountain Camp = $200

Now, here, the cost of 0.5 hour = $60

So, the amount left after 0.5 hour repair = $200 - $60 = $140

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Cost of 1 hour charge = $40

Cost of m hour charge = m X ( 1 hour charge) = m x ($40) = 40 m

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or, m= 140/40 = 3.5, or m = 3.5

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Now, the total hours of services hired = 0.5 hour in $60 + 3.5 hr in $140

= 0.5 hr + 3.5 hr = 4 hrs

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2 years ago

Which of the following is a perfect square trinomial?

shutvik [7]

Answer:

A.

Step-by-step explanation:

Take a look at what happens when squaring either of these...

$(ax-by)^2=(ax-by)(ax-by)=a^2x^2-2abxy+b^2y^2\\\\(ax+by)^2=(ax+by)(ax+by)=a^2x^2+2abxy+b^2y^2\\$

Notice a couple of patterns.

1. The last term has a positive coefficient. That rules out answer choices C and D.

2. The coefficient of the middle term is either $+2ab \text{ or } -2ab$ . So what are <em>a</em> and <em>b</em>? <em>a</em> is the square root of the x^2 term and <em>b</em> is the square root of the y^2 term.

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2 years ago

What is the volume of this triangular prism?

Liula [17]

Answer:

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Step-by-step explanation:

The volume of any prism is given by the formula ...

V = Bh

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B = 1/2·bh

where the b and h in this formula are the base and height of the triangle, 28 cm and 22.4 cm.

Then the volume is ...

V = (1/2·(28 cm)(22.4 cm))·(18.1 cm) = 5676.16 cm^3

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You will note that this is half the product of the three dimensions, so is half the volume of a cuboid with those dimensions. Perhaps you can see that if you took another such prism and placed the faces having the largest area against each other, you would have a cuboid of the dimensions shown.

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Nimfa-mama [501]

Math is real hard but I think irrational don’t quote me on that

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3 years ago

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