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3 years ago

Suppose you are buying a $1 item. How much sales tax would you be buying in each province?

1 answer:

4 0

Just multiply 1.00 by the sales tax. then add the tax u get to the 1.00. example: a) 1.00 x 8% = .08 now 1.00 + .08= 1.08 total.

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Jacob shares 4 sandwiches equally on 3 plates. How many sandwiches will be on each plate?

My name is Ann [436]

Answer:

1 1/3

Step-by-step explanation:

3 0

3 years ago

Finding the Range

rusak2 [61]

Answer:

Step-by-step explanation:

92 - 3 =89

subtract smallest from largest

6 0

2 years ago

Mrs. McAlister wrote the equation 10 t minus 4 t + 3 t = 8 on the board and asked students to write an equivalent equation. The

Lera25 [3.4K]

Answer:

t = 8/9

Step-by-step explanation:

There are many possible solutions that could be expressed as equivalent to the equation 10t - 4t + 3t = 8. With that being said, here is a simplified form, solved for t.

10t - 4t + 3t = 8

6t + 3t = 8

9t = 8

t = 8/9

Each of these form's is an equivalent equation to the one written by Mrs. McAlister.

If you can provide the table of student answers, we could answer which students were correct or wrong. Without the table, we can only guess.

Cheers.

3 0

3 years ago

Determine the amplitude, period, and phase shift of the function f(x)=cos (8(x-1))+2

SCORPION-xisa [38]

We have been given a function $f(x)=\text{cos}(8(x-1))+2$ . We are asked to find the amplitude, period and phase shift of the function

We can see that our given function is in form $f(x)=A\cdot \cos(B(x-C))+D$ , where,

$|A|$ = Amplitude.

Period = $\frac{2\pi}{|B|}$

C = Horizontal shift,

D = Vertical shift.

We can see that value of a is 1, therefore, the amplitude of given function would be 1.

We can see that B is equal to 8, so we will get:

$\text{Period}=\frac{2\pi}{|B|}= \frac{2\pi}{|8|}=\frac{\pi}{4}$

Therefore, the period of given function is $\frac{\pi}{4}$ .

Since the value of C is 1, therefore, horizontal shift is 1.

Since the value of D is 2, therefore, vertical shift would be 2.

4 0

3 years ago

How do you know when to rewrite square trinomials and difference of squares binomials as separate factors? How can sums and diff

VLD [36.1K]

Answer:

Step-by-step explanation:

You asked: How do you know when to rewrite square trinomials and difference of squares binomials as separate factors? First, and mostly obviously is when the directions say to factor the given expression. Next, if you're given an equation and asked to solve it. You set it equal to 0 and factor the perfect square trinomial or the difference of squares binomial. Set each factor equal zero and solve. This is a little bit oversimplified but, solutions are roots are zeros are x-intercepts, so if you are asked to find any of those things. Set your equation equal to zero, factor and solve. Also, if you have a rational expression (a fraction with a polynomial on top and a polynomial on the bottom) you would need to factor in order to simplify, to sketch a graph without technology. Anytime you need to simplify, factoring is good to try.

You also asked: How can sums and differences of cubes be identified for factoring? The sum or difference of cubes is in the form a^3 + b^3 or a^3 - b^3

You can memorize how to factor these a^3 + b^3 = (a+b)(a^2 - ab + b^2) and

a^3 - b^3 = (a-b)(a^2 + ab + b^2)

If you take the trouble to multiply these two factors back together you will see how four terms drop out and you get a binomial. Also the is an acronym SOAP to help you memorize it. Factoring cubes is used in the same way as you previous question. To factor, to solve, to simply, to graph. This was a really general question. I hope this helps.

4 0

2 years ago