find x and round to the nearest tenth

Find X And Round To The Nearest Tenth

Answers

Answer 1

Answer and Step-by-step explanation:

22ft = x (c)

20ft = y (b)

18ft = z (a)

Plug into equation.

[tex]22^{2} = 20^{2} + 18^{2} - 2(20)(18)cosC (X)\\\\484 = 724 - 720cosC\\\\-240 = -720cosC\\\\\frac{1}{3} = cosC\\\\cosx^{1} (\frac{1}{3} ) = C\\\\C = 70.5288\\\\[/tex]

C ≈ 70.5 is the answer.


Related Questions

a factory has 8 more than 10 times as many doors as a school which has s doors. how many doors does the factory have

Answers

Answer: 80

Step-by-step explanation:

8 times more than ten is 80

The factory has 10s + 8 doors.

It took Darlene 5 weeks to write 15 chapters of a book. How many weeks did it take to write 6 chapters?

Answers

Answer:

2

Step-by-step explanation:

5 weeks divded by 15 chapters times 6 chapters = 2 weeks

Lola has a total of 45 beads. Some are black and some are white. The ratio of the number of black beads to the number of white beads is 7:2. How many more black beads little white beads are there?​

Answers

Answer:

The answer is 35:10

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

Add the parts of the ratio to get the whole (7 + 2). Divide the total number of beads and the sum of the ratio to find out how many times you'll multiply (45 ÷ 9). Use the ratio to multiply by 5 (5 • 7) and (5 • 2).

There are 35 black beads and 10 white beads.

So, there are 25 more black beads than white beads.

Sally bought 10 pencils for
$1.50, how much is it per pencil? Don't forget $ in
the front.

Answers

Answer:

$0.15 per pencil

Step-by-step explanation:

1. Divide

1.50 divided by 10 = 0.15

2.Answer

$0.15 per pencil

3. Which number is a natural number?
A-2.5
B 5-151
C-13+51
D|-81-2

Answers

Answer:

C

Step-by-step explanation:

A natural number is a number that you would use to count kids in a class for example. Like, 1,2,3,4 and so on. 2.5 is not a natural number since there cant be 2.5 of a student. 5-151 is a negative number and there cant be negative students. -13+51=38. 38 is a natural number. Now, in D it looks like there mightve been a absolute value sign but im not sure. If D has absolute value signs then D works too. Hope I could help.

How much longer is a 1-inch button than a 3/8 inch button? Thxs

Answers

Answer:

5/8 an inch

im pretty sure

if im wrong im SO SORRY

Answer: 1 inch would be 5/8 inch longer than 3/8 inch.

Step-by-step explanation:

1 inch button is 58 times longer than 38 inch buttons.

5/8 inches...simple.

Step-by-step explanation:

(Brainliest plz?)

Solve the inequality.
x+7 > 18
The solution is
Graph the solution.

Answers

Answer:

Step-by-step explanation:

sshshfdf

Please correct answer

Answers

Answer:

14.333 yards

516 inches

Answer:

3) 43 ft = 14.33 yards and 516 inches.

Step-by-step explanation:

43 ft = ? yards

Divide 43 by 3: 43 ÷ 3 = 14.33 yards

43 ft = ? inches

Multiply 43 by 12: 43 × 12 = 516 inches

A 4-inch long ribbon is cut into pieces. If the length of each piece is 12of an inch, how many pieces are cut?

Answers

Answer:

48 pieces are cut.

Step-by-step explanation:

1/12 of an inch means that one inch would be 12 pieces. Since there are 4 pieces it would be 12x4= 48 pieces.

X^2+17x+50=0 to the nearest tenth.

Answers

Since you cannot really factor this problem easily, we are going to resort to the quadratic formula!

x= -b+or- sqrt(b^2-4ac)    / 2a

x=-17+ or - sqrt(17^2-4*50)   /2

x=-17+ or - sqrt89 /2

Now we just need estimate sqrt 89 which is about 9.43 and I will not bother to show the step I did to estimate its about 9.43.

So x= -17+ or -9.43 /2

x= -26.43/2 or -7.57/2

x=-13.215 or -3.785

Round to nearest tenth digit.

x= -13.2 or -3.8

Hope this helps any questions just ask in the comments.

I don't understand please help ​

Answers

Answer:

Step-by-step explanation:

the average rate of change is the same as

the slope of a line m = (y2-y1)/(x2-x1)

to find if is positive of negative look at the line between the years given (for example between 1930 and 1940)

if from left to right the line goes downward the rate of change is negative

if from left to right the line goes upward the rate of change is positive

3(8 + 6y) in English Phrases

Answers

Answer:

3(8+6y)

Step-by-step explanation

multiple 3 x8

then 3 x 6y

your answer is 24+18y

Need help with math points and brainlest

Answers

Answer:

Step-by-step explanation:

Pls help Find the measure of angle B​

Answers

Answer:

∠b = 61°

Step-by-step explanation:

∠b + 29° = 90°

∠b = 90° - 29°

∠b = 61°

Suppose we are writing a calculation to the right of 72,000 ÷ 3,000 Which expression has a quotient of 24? Be prepared to explain your reasoning.

A - 72,000 ÷ 30,000
B - 720,000 ÷ 300,000
C - 720,000 ÷ 30,000
D - 720,000 ÷ 3,000

Answers

I hope this helps but I think that the answer is

B

Answer: You’ve probably found the answer but it’s C.

Step-by-step explanation:

2 to the power of =32

I need it to day

Answers

I got 4,294,967,296 hope it helps

a spider spins a web in the following way it starts at sea level (0)
it moves up one inch in the first minute
it moves down two inches in the second minute
it moves up three inches in the third minute
it moves down four inches in the fourth minute
Assuming that the pattern continues, what will the spiders elevation be after an haour has passed?​

Answers

Answer:

Step-by-step explanation:

f(x) = x^2 -2x -3 /x-3 identify the discontinuity

Answers

Answer:

Step-by-step explanation:

Again, parentheses would help with clarity. f(x) = (x^2-2x-3)/(x-3)

The denominator is x-3. Division by 0 is undefined, so x ≠ 3.

64
4+4x U
K
36
27
72
T
96
L
Find the value of x.

Answers

The value of {x} is equivalent to 7.

What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given are two triangles ΔJTU and ΔJLK.

The triangles ΔJTU and ΔJLK are similar.

We can write the proportional relation as -

{JU/JK} = {JT/JL}

{- 4 + 4x/64} = {27/72}

{- 4 + 4x/64} = 3/8

- 4 + 4x = 24

4x = 28

x = 7

Therefore, the value of {x} is equivalent to 7.

To solve more questions on algebraic expressions, visit the link below -

brainly.com/question/1041084

#SPJ1

The value of x is 7.

What are similar triangles?

Two triangles are similar if the angles are the same size or the corresponding sides are in the same ratio. Either of these conditions will prove two triangles are similar.

From the given figure,

Consider ΔJKL and ΔJUT

If T and U are midpoints on JL and JK, then TU is parallel to LK.

Then ∠T=∠L (Corresponding angles)

∠U=∠K (Corresponding angles)

Hence, ΔJKL is similar to ΔJUT

Now, JT/JL = JU/JK = TU/LK

27/72 = -4+4x/64 = 36/96

9/24 = -4+4x/64 = 12/32

3/8 = -4+4x/64 = 3/8

-4+4x/64 = 3/8

-4+4x=24

4x=28

x=7

Therefore, the value of x is 7.

To learn more about the similar triangles visit:

https://brainly.com/question/25882965.

#SPJ1

Find the minimum value of
C = 6x + 7y

Answers

the minimum value of c is 46

Pls help I’ll brainlest ASAP

Answers

Answer:

-9

Step-by-step explanation:

-6 Divided By 2/3 = -9

2/3 multiplied by -9 = -6

Your  answer will be z = -6/3 or -9

If its wrong I tried-

Write a story problem that can be represented with the following equation:
5x + 10 = 35

Answers

Annie has a lemonade stand and her mom pays her 5 dollars every week for her to go get her supplies. Her dad pays her ten dollars one week. She has 35 dollars that month. How many weeks did Annie’s mom pay her?

35 - 10 = 25

25 divided by 5 equals 5.

To check: 5 x 5 equals 25 plus 10 equals 35

which of the following is the smallest prime number greater than200?

Answers

Answer:

100 or it is 300........

Step-by-step explanation:

................

find x pls help lol

Answers

Answer:

x=6

Step-by-step explanation:

x is the geometric mean of 3 and 12.

3 · 12 = x²

x=6

1)carla tiene 628 galletitas para preparar una torta, cada piso tendra 24 galletitas¿cuantos pisos puede armar?,¿le sobran galletitas o le alcanza justo?

POR FAVOR ES PARA HOY

Answers

Answer:

puede hacer 26 pisos y le sobran 4 galletas

I need help with this if you get it right I will mark you

Answers

interior angle sum of a triangle is 180, so 180=38+26+2n
180=64+2n
116=2n
58=n
the answer is c

A pair of sneakers which normally cost $120 is on sale for $78. What is the percent markdown(percent decrease)?

Answers

Answer:If the original price was $120 and it dropped down to 78 the Mark down price percentage will be 53.85%

Step-by-step explanation:

If you make $450 a month but 15% is withheld from each paycheck for social security and taxes, how much will your take home be over the course of a year?

Answers

Answer: 15% of 450 is 67.5

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

hhrhrhrrhrheheejjeeje

Which statement is true about the polynomial 5s^6t^2 + 6st^2 - 8s^6t^2 - 6t^7 after it has been fully simplified?

Answers

Given:

The polynomial is

[tex]5s^6t^2+6st^2-8s^6t^2-6t^7[/tex]

To find:

The correct statement about the given polynomial.

Solution:

We have,

[tex]5s^6t^2+6st^9-8s^6t^2-6t^7[/tex]

On combining like term, we get

[tex]=(5s^6t^2-8s^6t^2)+6st^9-6t^7[/tex]

[tex]=-3s^6t^2+6st^9-6t^7[/tex]

Here, the terms are [tex]-3s^6t^2, 6st^9, 6t^7[/tex]. So, the number of terms is 3.

The degree of the polynomial is the highest power of the variable or the product of the variables.

Powers of [tex]-3s^6t^2, 6st^9, 6t^7[/tex] terms are 6+2=8, 1+9=10, 7.

Since the highest power of the product of the variable is 10, therefore, the degree of the polynomial is 10.

Hence the correct option is b.

The manager at a restaurant found that the cost to produce 150 cups of coffee is $21, while the cost to produce 300 cups of coffee is $36. assume the relationship between the cost y to produce x cups of coffee is linear.
a.) write a linear equation that expresses the cost,y, in terms of the number of cups of coffee,x.
b.) how many cups of coffee are produced if the cost of production is $56?

Answers

Answer:

[tex]y = \frac{1}{10}x + 6[/tex]

500 cups cost $56

Step-by-step explanation:

Given

[tex]x = cups[/tex]

[tex]y = cost[/tex]

[tex](x_1,y_1) = (150,21)[/tex]

[tex](x_2,y_2) = (300,36)[/tex]

Solving (a): Linear Equation

First, we calculate the slope (m)

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Substitute right values

[tex]m = \frac{36 - 21}{300- 150}[/tex]

[tex]m = \frac{15}{150}[/tex]

[tex]m = \frac{1}{10}[/tex]

The equation is then calculated as:

[tex]y = m(x - x_1) + y_1[/tex]

Where

[tex](x_1,y_1) = (150,21)[/tex]

[tex]m = \frac{1}{10}[/tex]

This gives:

[tex]y = \frac{1}{10}(x - 150) + 21[/tex]

Open bracket

[tex]y = \frac{1}{10}x - \frac{1}{10}*150 + 21[/tex]

[tex]y = \frac{1}{10}x - 15 + 21[/tex]

[tex]y = \frac{1}{10}x + 6[/tex]

Solving (b): Cups of coffees for $56

Substitute 56 for y in [tex]y = \frac{1}{10}x + 6[/tex]

[tex]56 = \frac{1}{10}x + 6[/tex]

Subtract 6 from both sides

[tex]-6+56 = \frac{1}{10}x + 6-6[/tex]

[tex]50 = \frac{1}{10}x[/tex]

Multiply both sides by 10

[tex]10 * 50 = \frac{1}{10}x * 10[/tex]

[tex]10 * 50 = x[/tex]

[tex]500 = x[/tex]

[tex]x = 500[/tex]

Hence: 500 cups cost $56

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