Determine the number of degrees for the angle in section B of the pie chart . Round to the nearest whole degree Please assist me
Determine the number of degrees for the angle in section - 1

Answers

Answer 1
Answer:

Answer:

115°

Step-by-step explanation:

Measure of the degree of the angle represented by section B on the chart = percentage in the pie chart ÷ 100 × 360. A full circle makes 360°.

Section B represents 32% of the pie chart, therefore, number of degrees for section B = (32)/(100)*360 = (32*360)/(100)

= 115.2

Section B = 115° (to the nearest whole number)


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Give the values of A, B, and C needed to write the equation's general form.(5 + x)(5 - x) = 7

1. A = 1; B = 0; C = -18
2. A= -1; B = 0; C = 25
3. A = 25; B = 0; C = -1

Answers

Given:

The equation is:

(5+x)(5-x)=7

To find:

The value of A, B and C for the equation's general form.

Solution:

We have,

(5+x)(5-x)=7

Using distribution property, we get

(5)(5)+(5)(-x)+(x)(5)+(x)(-x)=7

25-5x+5x-x^2=7

25-x^2=7

Taking all terms on one side, we get

25-x^2-7=0

-x^2+18=0

-(x^2-18)=0

x^2-18=0

On comparing this equation with the general form of a quadratic equation Ax^2+Bx+C=0, we get

A=1

B=0

C=-18

Therefore, the correct option is 1.

Find the slope of the line that contains the following points ( -3 , 7) and (8, -2)

Answers

Answer:

-9/11

Step-by-step explanation:

The slope of a line given two points is

m = (y2-y1)/(x2-x1)

   = (-2-7)/(8--3)

    = (-9)/(8+3)

    =-9/11

Hope this helped you. :)

Can someone help me with isosceles triangles???

Answers

Answer:

1) x = 75°

2) x = 180° - 2×40° = 180° - 80° = 100°

3) x = 180° - 2×73° = 180° - 146° = 34°

4) x = (180° - 122°) : 2 = 58° : 2 = 29°

5) x = 90° - (180° - 80°) : 2 = 90° - 100° : 2 = 90° - 50° = 40°

An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number of key rings is given by , where n is the number of key rings in thousands. Find the number of key rings sold on a particular day when the total profit is $5,000.

Answers

Answer:

The number of key rings sold on a particular day when the total profit is $5,000 is 4,000 rings.

Step-by-step explanation:

The question is incomplete.

An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number of key rings is given by

P=n^2-2n-3

where n is the number of key rings in thousands.

Find the number of key rings sold on a particular day when the total profit is $5,000.

We have the profit defined by a quadratic function.

We have to calculate n, for which the profit is $5,000.

P=n^2-2n-3=5\n\nn^2-2n-8=0

We have to calculate the roots of the polynomial we use the quadratic equation:

n=(-b\pm√(b^2-4ac))/(2a)\n\nn= (-2\pm√(4-4*1*(-8)))/(2)= (-2\pm√(4-32))/(2) = (-2\pm√(36))/(2) =(-2\pm6)/(2) \n\nn_1=(-2-6)/2=-8/2=-4\n\nn_2=(-2+6)/2=4/2=2

n1 is not valid, as the amount of rings sold can not be negative.

Then, the solution is n=4 or 4,000 rings sold.

A line passes through the point (2, 7) and has a slope of 4. What is the equation of the line?

Answers

Answer:

y=4x-1

Step-by-step explanation:

Remember the point slope form equation y-y1=m(x-x1) where m is the slope and the given point is (x1,y1)

y-7=4(x-2) . Plug in the numbers for the equation

y-7=4x-8   distributive property

y = 4x-1

y=4x-1 is the equation that passes through (2,7)

What is the sum of the polynomials?(8x^2 - 9y^2 - 4x) + (x^2 - 3y^2 - 7x)

* 7x^2 - 6y^2 + 3x
* 9x^2 - 6y^2 + 3x
* 9x^2 - 12y^2 + 3x
* 9x^2 - 12y^2 - 11x

Answers

The sum of the polynomials is 4x² - 12y² - 11x. The correct answer is an option (D) 4x² - 12y² - 11x.

What is a polynomial?

A polynomial is defined as a mathematical expression that has a minimum of two terms containing variables or numbers. A polynomial can have more than one term.

The polynomials are given as follows:

(8x² - 9y² - 4x) + (x² - 3y² - 7x)

By combining like terms, we can add the polynomials:

(8x² - 9y² - 4x) + (x² - 3y² - 7x)

= 8x² - 4x² - 9y² - 3y² - 4x - 7x

= 4x² - 12y² - 11x

Therefore, the sum of the polynomials is 4x² - 12y² - 11x.

Hence, the correct answer is option (D) 4x² - 12y² - 11x.

Learn more about the polynomial here:

brainly.com/question/11536910

#SPJ7

Answer:

Option D

Step-by-step explanation:

(8x^2-9y^2-4x) +(x^2-3y^2-7x)

8x^2+x^2-9y^2-3y^2-4x-7x

9x^2-12y^2-11x