Here are eight angles. Which of these angles are obtuse angles?

Enter your answer as a list of letters, separated by commas. For example, if you believe angles A, B, and F are obtuse, type A, B, F.

Help me please. Please, Please!!!

This won't be the easiest way to do this problem but as your teacher requires it I will do it that way. But at the end I will show another way to do it with the quadratic formula.

First complete the square

x^2-3x+1=0

(x^2-3x+9/4)+1=9/4

(x-3/2)^2=9/4-1

(x-3/2)^2=5/4

x-3/2=±[tex]\sqrt{\frac{5}{4}[/tex]

x= 3/2±[tex]\frac{\sqrt5}{2}[/tex]

Done!

*Now this next way is not the way your teacher wants you to do it but I personally think its easier.

Just use the quadratic formula x=[-b±sqrt(b^2-4ac)]/2

x=[3±sqrt(9-4*1*1)]/2

x=(3±sqrt5)/2

x=3/2±sqrt5/2

We get the same answer but I think this way is easier. Now if your teacher ask for the top way just do the top way don't do the bottom because you will lose points, its just a shorter way to do things. Now I hope this helped and any additional questions about this just ask me in the comments.

Answer:

Step-by-step explanation:

Jupiter lighthouse , r=18 miles, A= 2*3.14*r^2

A Jupiter=2*3.14*18*18=2034.72 mi^2

Hillsborough light house, r= 28 miles,

A Hillsb=2*3.14*28*28=4923.52 mi^2

the difference is

4923.52-2034.72=2,888.80

Answer:

9/10

Step-by-step explanation:

If you divide both the numerator and the denominator by 7 you get 9/10 and you cannot simplify this fraction any further. (Double check to make sure I'm correct)

Answer:

B is the table value which represents the l

The logarithmic expressions are log6 with base 3 and log5 with base 4.

What is logarithmic function?

It is the inverse of the exponential functions. It is equal to y=㏒x.

A) log 8 with base 3=log8/log3=0.903089987/0.4771212547=1.8927

B) log 6 with base 3=log6/log3= 0.77815125038/0.4771212547=1.6309

C) log 5 with base 4=log5/log4=0.69897000433/0.60205999132=1.1609

D) log 32 with base 2=log32/log2=1.50514997832/0.30102999566=5

E) log 7 with base 4=log 7/ log 4=

=0.84509804001/0.60205999132=1.403

Hence the required logarithmic expressions be on B and C.

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Answer:

8

Step-by-step explanation:

16=x

16 square root is 4

16=4

x2

(4)2= 8

Answer:

x2 or 2x=8

Step-by-step explanation:

the square root of 16 is 4

since the other term is 2*x you plug-in numbers and get 2*4=8

Answer:

(1,0)

Step-by-step explanation:

Answer:

0.75

Step-by-step explanation:

this is what popped up in my calculator so i hope this helps you. :)

Answer:

y=(x+5)2 hope this helped!!! :D

Step-by-step explanation:

Answer:

5 bugs

Step-by-step explanation:

You would use subtraction to find the difference: 17 - 12 = 5

Answer:

small pizza

Step-by-step explanation:

1/2 gabby 1/2 sam

Answer:

x³ + 2x² -15x

Step-by-step explanation:

Hope it helps

Answer:

24 students where studying one language

Step-by-step explanation:

Answer:

1/2 2/4 3/6

Step-by-step explanation:

Answer:

7/13

Step-by-step explanation:

if 1/26 is closest to zero then 7/13 is closer to 1/2

Using the relation between velocity, distance and time, it is found that it will take her 6 hours to get to the arch.

Velocity is distance divided by time, that is:

v = d/t.

For this problem, we have that:

We can solve the equation for t to find the time, hence:

65 = 390/t

65t = 390

t = 390/65

t = 6.

It will take her 6 hours to get to the arch.

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Answer:

-3x-3

Step-by-step explanation:

We want our equation to look like this

y=mx+b

we know that m= -3 so we just need to find b

We can start by plugging in the ordered coordinates into our equation

3=(-3)(-2)+b

Solve for b

3=6+b

b= -3

Which means our final equation is

y= -3x-3

Answer:

she has hdu 7match the inequalities with the graphs

Answer:

uhh which 1

Step-by-step explanation:

The expressions are simplified and factored in as below.

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

The expressions are simplified as,

1.

5x + 3x

= 8x

2.

2x + x

= 3x

3.

6x + 8x

= 14x

4.

9x + 3x

= 12x

5.

7x + 4x

= 11x

6.

10x + x

= 11x

7.

3x + 2 + 4x

= 7x + 2

8.

15x + 3 + x

= 16x + 3

9.

2x + 5 + 6x

= 8x + 5

10.

7x + 2x + 4

= 9x + 42

11.

18x + 3x + 9

= 21x + 9

12.

6x + x + 8

= 7x + 8

13.

21x + 15y

= 3(7x + 5y)

14.

2x + 14y

= 2(x + 7y)

15.

15x + 10y

= 5(3x + 2y)

16.

12x + 18y

= 6(2x + 3y)

17.

10x + 30y

= 10(x + 3y)

18.

6x + 14y

= 2(3x + 7y)

19.

8x + 16y

=  8(x + 2y)

20.

45x + 27y

= 9(5x + 3y)

21.

54x + 48y

= 3 (18x + 16y)

Thus,

The expressions are simplified and factored in as above.

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Answer: 3200 ft^2

Step-by-step explanation:

You have a total area of 4,000 ft^2.

In your plan, you will make two bathrooms (one men's restroom and one women's restroom)

We know that each one of them needs 400ft^2, then the total area needed is two times 400ft^2, or:

2*400ft^2 = 800ft^2

If we subtract this to the total area, we get:

4000ft^2 - 800ft^2 = 3200 ft^2

That is the square feet left for the development of other nonbathroom areas.

Answer:

y=1/2x-7/4

Step-by-step explanation:

(3.5, 0)

Answer:

x=16

Step-by-step explanation:

Answer:

x = 4.5

Step-by-step explanation:

0.2(-3) + 5.1 = -0.6 + 5.1 = 4.5

Answer:

7÷8 and 8÷7

Step-by-step explanation:

Answer:

13.416 or 13.4

Step-by-step explanation:

Answer:

5/8

Step-by-step explanation: