Mathematics High School

HELP!! What is the approximate measure of angle x in the triangle shown?
60.3 degrees
80.4 degrees
117.1 degrees
130.5 degrees

HELP!! What Is The Approximate Measure Of Angle X In The Triangle Shown?60.3 Degrees80.4 Degrees117.1

Answers

Answer 1
Answer:   D)  130.5 degrees

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Work Shown:

[tex]c^2 = a^2 + b^2 - 2*a*b*\cos(C)\\\\10^2 = 5^2 + 6^2 - 2*5*6*\cos(x)\\\\100 = 25 + 36 - 60*\cos(x)\\\\100 = 61 - 60*\cos(x)\\\\100 - 61 = - 60*\cos(x)\\\\39 = - 60*\cos(x)\\\\\cos(x) = \frac{39}{-60}\\\\\cos(x) = -0.65\\\\x = \arccos(-0.65)\\\\x \approx 130.5416\\\\x \approx 130.5\\\\[/tex]

Note: I used the law of cosines. Make sure your calculator is in degree mode.

Related Questions

help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

a) 2.083

b) 4.713

I hope this helps. :) ( I also multiplied them to check)

Answer:  A

Step-by-step explanation:


Pls help will mark the brainiest

Answers

I’m pretty sure it’s answer a!

Over 4 days, Krista deposited $45 into her bank account, transferred $30 1 point
to a friend, deposited $59, and withdrew $18. What was the mean change
per day to Krista's account in dollars during that week? *

Answers

So $59 is $18 I only got $20 dollars and 25 cents so what is that

Factor. x^2+14x+48 please

Answers

The answer is (x + 8) x (x + 6)

Answer:

(x+8)(x+6)

Step-by-step explanation:

what is 843.5 x 10 with a exponent of 2

Answers

Answer:

84,350

Step-by-step explanation:

843.5 x 10^2 = answer

Answer:

84350

Step-by-step explanation:

please help me with this

Answers

Answer:

The circumference is the distance around a circle. In other words, it's the perimeter of the circle. And we find the circumference by using the formula C = 2πr.

Step-by-step explanation:

Jesse worked at the pool all summer and saved $500. Her parents want her to put the money into a bank account, where she would earn 2% simple interest monthly on her principal deposit of $500.


How much will she make in interest?

Answers

You need to know how long it was in her account then you would multiply the .2 by the 500$ and get the total for the first month. Then .2 by the total of the first month not $500 to get the second month. You continue this for as many months as it asks you and keep multiplying your new amount. The final step is to subtract the final month balance by $500 to get the amount she makes in interest.

GIVING BRAINLIEST! PLZ HELP !!!!!

Answers

[tex]\huge\mathtt\colorbox{white}{}[/tex]

Solve 2x - 4 > 10 and select all of the following answer choices that would make this inequality true.

Answers

Future value = FV = $6000

Time period = n = 8

interest rate = r = 12%

Present value (PV) is calculated using the formula:

PV = FV/(1+r)n

Present Value = PV = 6000/(1+12%)8 = 6000/1.128 = 2423.299368

Answer -> 2,423

A regular pentagon, a regular octagon, and∠ meet at a point. What is m< SBY?

Answers

Answer:

117

Step-by-step explanation:

Each angle of a regular pentagon = 108

Each angle of regular octagon = 135

135+ 108 + ∠SBY = 360

       243 + ∠SBY = 360

                 ∠SBY = 360 - 243

∠SBY = 117°

How do you solve y=3x²-6x-1 using completing the square?

Answers

(B/2)^2 is the formula you need to complete the square
B is the second term which is -6
So let’s plug it into the formula
(-6/2)^2
(-3)^2= 9

Multiply 5x(6x−4)

A- 11x^2+x
B- 30x^2 - 4
C - 30x^2 + 20x
D - 30x^2 - 20x

Answers

D

30x/2-20x


It’s D

The answer

Use the given figure to complete the statement below. is the bisector of ∠COA.

Answers

Answer:

45

Step-by-step explanation:

What is the significance of a correlation coefficient of − 0 . 97 ?

Answers

Answer:

The points all lie very close to the line of fit, and the

line is decreasing.

Step-by-step explanation:

Brainliest maybe

Answer: A.) The points all lie very close to the line of fit, and the line is decreasing.

A lightbulb consumes 1440 watt-hours Per day how many watt-hours does it consume in three days and 12 hours?

Answers

Answer:

it consumes 5040 watt hour in 3 days and 12 hours. Happy to Help :)

Step-by-step explanation:

4x+3y=16 x= -3 and y= -2 Solve the equation​

Answers

Answer:

Is this question wrong?

Step-by-step explanation:

4x+3y=16

4(-3)+3(-2)=16

-12-6=16

-18=16

Need help on the 2 questions ASAP and SHOW WORK PLEASE !!!! 50 points ????

Answers

Answer:

-4 - 8-=-4

Step-by-step explanation:

Use the Completing the Square method to solve for x.
y= (x + 3)2 – 4.
OX= 1 & 5
Ox= -1 & 5
O x = 1 & -5
OX= -1 & -5

Answers

Answer:

x = -1

x = -5

Step-by-step explanation:

y= (x+3)^2 - 4

(x + 3)^2 = x^2+6x+9

y = x^2 + 6x + 9 - 4

y = x^2 + 6x + 5

x^2 + 6x = -5

x^2 + 6x + 9 = -5+9 (6/2=3, 3^2 = 9) (add 9 to both sides)

(x + 3)^2 = 4

x + 3 = sqrt 4

x + 3 = +- 2

x + 3= 2. x = 2-3. x = -1

x + 3 = -2. x = -3-2. x = -5

Go follow lolzzzz
Did George Washington have a middle name

Answers

Answer:

Lol, I would like to answer the question tho...

(George Washington did not have a middle name.)

Step-by-step explanation:

If 10 litres of paint cost £45 find the cost of 13litres

Answers

Answer:

£58.50

Step-by-step explanation:

Ratio of Paint : Cost

10 : 45

13 : x

10x : 585

[tex] \frac{10x}{10} = \frac{585}{10} \\ x = 58.5 [/tex]

Evaluate the following real numbers:

1. l5l + l4l
2. 0.4 ÷ 10
3. ¼ + ⅔
4. 3 × 1 ½
5. ⅓ - ¼
6. (⅜) (8/5)
7. ⅖ + ⅗
8. -1 + (-1) + [-(9+4)]
9. the value of x + y if x = 4 and y = 6
10. 9² + 3³
​

Answers

Answer:

Q.1 Answer is 9

Q.2 Answer is 0.04

Q.3 Answer is 11/12

Q.4 Answer is 3/2

Q.5 Answer is 1/12

Q.6 Answer is 3/5

Q.7 Answer is 1

Q.8 Answer is -15

Q.9 Answer is 10

Q.10 Answer is 108

Someone pls help me I will make you brain

Answers

Answer:

base salary

Step-by-step explanation:

f(0) means that he had no sales so the only money made would be from the base salary

please help me!!!!! ​

Answers

Answer:

The equation is 39=3r-6

Step-by-step explanation:

Let x = # of years from the start of the Great Depression to the first Presidential election of Nixon

Let r = Raul's age

The question gives us what x equals so...

x=39

Now we just turn the sentence into an equation.

"The number of years from the start of the Great Depression to the first Presidential election of Nixon [(x)] is six years less than three times Raul's age [(3r-6)]"

Remove the icky words...

x=3r-6

replace x with what it equals (39)

39=3r-6

Now you can go on to olve it

Overal Raul is only 15 :)

lols ppz help1/2 (2 1/2×4 4/5-7 1/2)????,,,,,​

Answers

Answer:

If you've written it correctly, the answer is 2.25.

Step-by-step explanation:

Can be written as:

0.5 * (2.5 * 4.8 - 7.5).

Perform the multiplications inside the brackets, first:

0.5 * ( 12 - 7.5)

Then perform the remaining arithmetic inside the brackets:

0.5 * ( 4.5)

Perform the last arithmetic:

2.25.

Again, that's if you've written it correctly, and when you say 4 4/5-7 1/2 this actually means four and four fifths (4.8) minus seven and a half (7.5).

Answer:

[tex] - 2 \times \frac{3}{80} [/tex]

Step-by-step explanation:

solve using BODMAS

Perform the operation. Enter your answer in scientific notation.
(7 x 10^*9)(5.6 x 10^*8)

Answers

Answer:

3.92 × 10 ^18

Step-by-step explanation:

(7 x 10^*9)(5.6 x 10^*8)

(7000000000)(560000000)

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  

10

If the decimal is moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

chu vi của một hình chữ nhật là 240 cm. Tính diện tích hình chữ nhật đó, biết tỉ số độ dài hai cạnh là 5 và 7

Answers

(-) Tỉ số độ dài 2 cạnh là 5 và 7
=> Chiều rộng = 5:12, chiều dài = 7:12
(-) Chu vi = 240 suy ra tổng chiều dài + chiều rộng = 240 : 2 = 120
(-) Chiều rộng = 120 x 5 : 12 = 50
Chiều dài = 120 x 7 : 12 = 70
(-) Diện tích = 50 x 70 = 3500

Hank's pickup can travel 54 miles on 3 gallons of gas. How many gallons will​ Hank's pickup need to travel 36 ​miles?

Answers

Answer:

2 gallons

Step-by-step explanation:

Solve the math problem

Answers

x+50+70+4x=180

combine like terms

50+70=120

subtract 120 by both sides

x+4x=60

combine like terms

5x=60

divide by 5

x=12

4x12=48

B=48

12+50=62

48+62=110

110+70=180

x=12

A=62

B=48

True or False: Midpoint is represented by a whole number, Indicating a length.

Answers

your answer is false

HELP ME PLEASE!!! 12 points!

Answers

Answer:

-18

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Parentheses first so

7-10=-3

then the brackets

-2-3-15=-20

-4-20=-24

so thats the numerator

the denominator is

2(-1)=-2

-20/-2= ?

We can remove the negative because two negatives make a positive then we would divide by 2

20/2=10

and that's our answer! :)

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