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Masteriza [31]
3 years ago
15

Jan is painting a square canvas. The length of one side of the canvas is 4 feet. Write an equation to show how to show how to fi

nd the area of the canvas
Mathematics
1 answer:
vlabodo [156]3 years ago
6 0

Step-by-step explanation:

It is given that, Jan is painting a square canvas. The length of one side of the canvas is 4 feet.

We need to write an equation to show how to find the area of the canvas.

For a square, all its sides are equal. Let the side is x. The area of a square is given by :

\text{Area}=\text{side}^2\\\\A=x^2\\\\A=4^2\\\\A=16

So, the equation that shows the area of the canvas is A=x^2.

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If a gallon of milk costs $5.25 now and the price is
adelina 88 [10]

Answer: It will take approximately 21 years.

Step-by-step explanation:

6 percent of 5.25 is 0.315 (5.25 x 0.06 = 0.315)

Then you subtract 5.25 from 12 to calculate the number of years. (12 - 5.25 = 6.75)

Divide 0.315 from 6.75 (6.75 / 0.315 ≈ 21.4)

5 0
3 years ago
Number 1 and 2 please (25 points)
Elenna [48]

Answers:

1) (3x+2)+(4-5x)=-2x+6

(3+2i)+(4-5i)=7-3i

2) (1-3x)(2+x)=-3x^{2}-5x+2

(1-3i)+(2+i)=5-5i

Step-by-step explanation:

In mathematics there are rules related to complex numbers, specifically in the case of addition and multiplication:

<u>Addition: </u>

If we have two complex numbers written in their binomial form, the sum of both will be a complex number whose real part is the sum of the real parts and whose imaginary part is the sum of the imaginary parts (similarly as the sum of two binomials).

For example,  the addition of these two binomials is:

(3x+2)+(4-5x)=3x-5x+2+4=-2x+6

Similarly, the addition of two complex numbers is:

(3+2i)+(4-5i)=3+4+2i-5i=7-3i Here the complex part is the number with the i

<u>Multiplication: </u>

If we have two complex numbers written in their binomial form, the multiplication of both will be the same as the multiplication (product) of two binomials, taking into account that i^{2}=-1.

For example,  the multiplication of these two binomials is:

(1-3x)(2+x)=2+x-6x-3x^{2}=-3x^{2}-5x+2

Similarly, the multiplication of two complex numbers is:

(1-3i)+(2+i)=2+i-6i-3i^{2}=2-5i-3(-1)=5-5i

8 0
3 years ago
7/10 times y minus 3/10 when y equals 1/7
Oduvanchick [21]

Answer:

Exact form : - 1/5

Decimal form : -0.2

Step-by-step explanation: Substitute the value of the variable into the equation and then simplify.

Hope this helps you out. If not, comment and let me know. Good luck, mate! ☺

-Leif the Insane Puppy Loving Weirdo-

3 0
3 years ago
What is 3x+5=-9 in slope intercept form
Nata [24]

Answer:

x=-14/3

Step-by-step explanation:

3x+5=-9

3x=-9-5

3x=-14

x=-14/3

4 0
2 years ago
a digital scale measures weight to the nearest 0.2 pound. which measurement shows an appropriate level of precison for the scale
nadezda [96]

Answer:

130.4 pounds

Step-by-step explanation:

The digital scale is measuring weight to the nearest 0.2 pounds, so basically the digital scale would show you the weight of an object that is a multiple of 0.2.

Talking about precision, precision tells us how accurate is the measured value or how close is the measured value to the actual value.

Here, scale is measuring to the nearest 0.2 pounds, so out of the given values the measurement that shows an appropriate level of precision for the scale is 130.4 pounds.

6 0
3 years ago
Read 2 more answers
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