1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
patriot [66]
3 years ago
5

Please help me guys thank you so much

Mathematics
1 answer:
disa [49]3 years ago
6 0
6. 108 degrees
7. 150 degrees
8. 135 degrees
9. 162 degrees
10. 2,340 degrees

I did the first 5, I hope it helps!

You might be interested in
Solve the following quadratics. State the FACTORS AND SOLUTIONS. 1. 2x^2 - 7x + 3 2. 3x^2 + 7x +2
tekilochka [14]

Answer:

1. x = 3, 1/2 (solutions); (x - 3)(2x - 1) (factors)

2. x = -1/3, -2 (solutions); (3x + 1)(x + 2) (factors)

Step-by-step explanation:

<u>1. 2x^2 - 7x + 3</u>

To solve problem 1, you will need to identify your a, b, and c values in this quadratic function.

Since this problem is in standard form, it will be easy to identify these values. The standard form of a quadratic function is ax^2 + bx + c.

The a value is 2, the b value is -7, and the c value is 3 if we use our standard form and see which numbers are plugged into it.

Since we know that

  • a = 2
  • b = -7
  • c = 3

we can use the quadratic formula: x = \frac{-b~\pm~\sqrt{b^2~-~4ac} }{2a}

Substitute the a, b, and c values into the quadratic formula: x=\frac{-(-7)\pm\sqrt{(-7)^2-4(2)(3)} }{2(2)}

Now simplify using the laws of pemdas: x=\frac{7\pm\sqrt{(49)-(24)} }{4}

Simplify even further: x=\frac{7\pm\sqrt{(25)} }{4} \rightarrow x=\frac{7\pm (5) }{4}

Now split this equation into two equations to solve for x: x=\frac{12 }{4} ~~and~~ x=\frac{2 }{4}

12/4 can be simplified to 3, and 2/4 can be simplified to 1/2.

This means your solutions to problem 1 is 3, 1/2.

\boxed {x=3,\frac{1}{2} }

There is also another way to solve for the quadratic functions, and this was by factoring.

If you factor 2x^2 - 7x + 3 using the bottoms-up method, you will get (x - 3)(2x - 1).

After factoring, solving for the solutions is simple because all you have to do is set each factor to 0.

  • x - 3 = 0
  • 2x - 1 = 0

After solving for x by adding 3 to both sides, or by adding 1 to both sides then dividing by 2, you will end up with the same solutions: x = 3 and x = 1/2.

<u>2. 3x^2 + 7x + 2</u>

To save time I'll be using the bottoms-up factoring method, but remember to refer back to problem 1 (quadratic formula) if you prefer that method.

Factor this quadratic function using the bottoms-up method. After factoring you will have (3x + 1)(x + 2). These are your factors.

Now to solve for x and find the solutions of the quadratic function, you will set both factors equal to 0.

  • 3x + 1 = 0
  • x + 2 = 0

Solve.

<u>First factor:</u> 3x + 1 = 0

Subtract 1 from both sides.

3x = -1

Divide both sides by 3.

x = -1/3

<u>Second factor:</u> x + 2 = 0

Subtract 2 from both sides.

x = -2

Your solutions are x = -1/3 and x = -2.

\boxed {x = -\frac{1}{3} , -2}

7 0
3 years ago
Abigail and her mom are back-to-school shopping at new Navy . Select items are on sale at 43% off their regular price . What is
vaieri [72.5K]

Answer:

$12.54

Step-by-step explanation:

First, you have to apply the sale to the original price. In this case, you would have to multiply 22 and 43% to get $9.46. Now, you have to subtract 9.46 from 22 to get 12.54.

7 0
3 years ago
Dan has a board that is 8 3/4 feet long. He cuts off 4 5/6 feet and says he has 4 1/12 feet left.
Nady [450]
Dan isn’t correct it’s either c or d
7 0
3 years ago
What would be the ratio of the number of cans to the price at super saver and price busters if a coupon for $1 off the total pur
faltersainse [42]
Sorry I don't know I can't help you
6 0
3 years ago
Help!<br><br> What's -8 &gt; x/6 - 9?<br> _
Aleks04 [339]
Your answer would be x<6
7 0
3 years ago
Other questions:
  • Given (-2, 4) (1, -2). Find the slope of the line
    8·2 answers
  • Which of the following uses the distributive property correctly? 9(m – 2) = 9(m) – 9(2) 9(m – 2) = 9(m) – 2 9(m – 2) = 9 – 9(2)
    15·1 answer
  • Can someone tell me the answers <br> This is math by the way
    6·1 answer
  • Plot the approximate values of and on a number line and determine which of the following statements are correct.
    9·1 answer
  • 3. If an object is dropped from a height of 100 ft, the function h(t) = -16f+
    12·1 answer
  • How do i simplify this
    7·1 answer
  • Twice the difference of a number and 1 is 4 more than that number. find a number using polyas 4 steps
    11·1 answer
  • Can you guys help me solve this problem
    12·1 answer
  • A baby weighs 7 pounds at birth. the table shows the baby's weigh after each month of its birth, up to the sixth month
    9·1 answer
  • Which of the following may fall outside a triangle?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!