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3 years ago

6. Evaluate the following expression for n = 4. n 2 - 12 -

Mathematics

1 answer:

Verdich [7]3 years ago

4 0

Answer:

-4

Step-by-step explanation:

n2 - 12=

4(2) - 12=

8 - 12=

-4

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1. The quadratic function f(x) has a turning point at (5, -8). If g(x)= (x+7)-3, then at which of the

vagabundo [1.1K]

The answers is going to be 12, -11

4 0

3 years ago

You need to buy a 20-foot length of 15-wide carpet that costs $29.50 per square yard. How much will this cost?

Marianna [84]

The cost of the carpet will be $983.33

<h3>Calculating cost</h3>

From the question, we are to calculate how much the carpet will cost

From the given information,

The carpet has a length of 20 feet

and a width of 15 feet

First, we will covert the dimension to yard

NOTE: 1 foot = 1/3 yards

Thus,

20 feet = 20/3 yards

and

15 feet = 15/5 yards = 5 yards

Now, we will calculate the area of the carpet

Using the formula,

Area = Length × Width

Area of the carpet = 20/3 × 5 square yard

Area of the carpet = 33.33 square yard

Now, we have that

The carpet costs $29.50 per square yard

∴ The cost of the carpet = 20/3 × 5 × $29.50

The cost of the carpet = $ 983.33

Hence, the cost of the carpet will be $983.33

Learn more on Calculating cost here: brainly.com/question/24458165

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8 0

2 years ago

I dont get this please help.

madam [21]

40 out of 250 students speak French: 40 / 250 = 0.16

Multiply the number of students surveyed by 0.16:

30 x 0.16 = 4.8

Round up to 5 students.

Answer 5 students

3 0

3 years ago

The perimeter of a rectangle is 16 inches. The equation that represents the perimeter of the rectangle is 2l + 2w = 16, where l

miss Akunina [59]

L = 5
W = 3

L = 7
W = 1

L = 6
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6 0

3 years ago

(20 points) A 2-liter bottle of soda (67.6 ounces) costs $1.89. A case of twelve 12 ounce

horrorfan [7]

Answer:

Unit price of a 2-liter bottle of soda: $\$0.028\ per\ ounce$
Unit price of a case of twelve 12 ounce cans: $\$0.021\ per\ ounce$
The better bargain is the case of 12 ounce cans.

Step-by-step explanation:

Let be "x" the unit price (price/ounce) of the soda in the 2-liter bottle and "y" the unit price (price/ounce) of the soda in the case of twelve 12 ounces cans.

According to the data provided in the exercise, you know that:

1. The 2-liter bottle of soda is equal to 67.6 ounces.

2. That bottle costs $1.89

Then, the unit price is:

$x=\frac{1.89}{67.6}\\\\x\approx0.028$

3. There are 12 ounce cans in the case. Then the total ounces is:

$12\ oz*12=144\ oz$

4. It costs $2.99. So the unit price is:

$y=\frac{2.99}{144}\\\\y\approx0.021$

Since:

$y$

The better bargain is the case of 12 ounce cans.

5 0

3 years ago