Please help!? Work out the size of angle x. 42 degrees and 123 degrees?

Please Help!? Work Out The Size Of Angle X. 42 Degrees And 123 Degrees?

Answers

Answer 1

Answer:

x° = 99°

Step-by-step explanation:

Sum of angles on a straight line is 180°.

180° - 123° = 57° (sum of angles on a straight line)

Sum of angles in a triangle is 180°. Let u be the value of the unknown angle in the triangle.

57° + 42° + u° = 180°

u° = 180° - 57° - 42°

u° = 81°

Sum of angles on a straight line is 180°.

x° + 81° = 180°

x° = 180° - 81°

x° = 99°


Related Questions

guys I, need help with this please help it is due today

Answers

4. .5 per ounce so 3.5 for 7 ounces
5. 7.5 degree every hour so 22.5 for 3 hours
6. 61 miles per hour so 305 for 5 hours

Jadan has a drawer of different colored t-shirts. He has 4 white t-shirts, 5 black t-shirts, 3 red t-shirts and 2 blue t-shirts. He is going out of town and is in need of 2 t-shirts. What is the probability that he will randomly choose a white t-shirt without replacement and then choose a blue t-shirt?

Answers

Answer:

25%

Step-by-step explanation:

I have 48 candys for 50cents each, how much total will I have after I sell all 48 candies?

Answers

Answer:

the answer is 2400 cents

Step-by-step explanation:

if you have 48 candies and each cost 50 cents so u meltiply 48 with 50. so if u mutiply them u get 2400cents, but if u want them in dollar then 1 dollar is 100 cent so if 1 dollar = 100 cent

                   ?        = 2400 cent

you criss -cross them so when u do 2400 multiplyed by 1 is 2400 and 100 multiplyed by ? is 100?  

so your going to get this

2400 = 100?

so u divide both sides by 100 because u want "?" alone. so when u do 100 will vanish because you divided both sides with 100

so it will look something like this

2400/100 = ?

when u divide 2400 with 100 u get 24.

what does that mean? it mean 2400 cents are 24 dollars

do you get it?

which scatterplot does NOT suggest a linear relationship between x and y. Look AT IMAGE

Answers

Answer:

Graph C

Step-by-step explanation:

It is Graph C because the points are majorly curved, while the rest of the lines are linear because they are straight.

Hope this helps! :D

- Luna

many do apply pls helpn

Answers

Answer:

a and b

Step-by-step explanation:

i think b i know a for sho

Answer:

32w+3

Step-by-step explanation:

8x4w=32w and you are left with the 3, so it ends up 32w+3


A recipe calls for 2 1/2cups of flour to make 18 muffins. If someone needs to make 2 1/2 times the recipe, how much flour should the person use?
Enter the mixed number as your answer.
The person should use
(Simplify your answer.)
cups

Answers

Answer:

l''kkk 1/2 cups

Step-by-step explanation:

To make 45 muffins the amount of flour required will be 6.25.

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that a recipe calls for 2 1/2 cups of flour to make 18 muffins. If someone needs to make 2 1/2 times the recipe.

The amount of flour required will be calculated as:-

2 (1/2) flour ⇒ 18 muffins

2.5 flour ⇒ 18 muffins

2.5 x 2.5 flour ⇒ 2.5 x 18 muffins

6.25 flours ⇒ 45 muffins

Therefore, to make 45 muffins the amount of flour required will be 6.25.

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Ms. Chang has 16 students in her class. She wants to send 3 of her students to pick up books for the class. How many combinations of students can she choose?

Answers

16-3=13 answer combinations of student

for the function f(x)=4/3x+8, what is the average rate of change over any given interval

a. 4
b. 3
c. 4/3
d. 3/4

Answers

Answer:

C i think i hope it helps

have a good night

3. David's salary is based off commission. The commission is 5% of the sales up to and including
$20,000 and 8% of the sales over $20,000 for the month. David sold $37,000 for the month.
What was his salary?

Answers

Answer:$2360

Step-by-step explanation:

37000-20000=17000

20000x0.05=1000

17000x0.08=1360

1000+1360=2360

Ms. Carey is planning to host a neighborhood picnic. To make sure she had enough ingredients, she was making a table of possible combinations of dried fruit to peanuts for her terrific trail mix. The table shows the original recipe’s ratio of dried fruit to peanuts. What numbers are missing in the table?



Question 5 options:

5 and 48


21 and 35


6 and 10


21 and 62

Answers

Answer:

5 and 48

Step-by-step explanation:

27:45

Simplify the ratio

3:5

The first one must be 5, and option 1 (5 and 48) is the only one with 5.

Justin opened a savings account with $900 that pays no interest. He deposits an
additional $190 each week thereafter. How much money would Justin have in the
account 30 weeks after opening the account?

Answers

$6,600

explanation:
1. 900+190x30
2. 190x30=5,700
3. 900+5,700- 6,600

Help me :( I will give you Brainlist if you get it right!​

Answers

Answer:

I think C

Step-by-step explanation:

sorry if I'm wrong

D i answered this one on khan.

total cost and interest for a loan
Breanna
Espanol
To purchase $13,900 worth of lab equipment for her business, Amy made a down payment of $1900 and took out a business
loan for the rest. After 3 years of paying monthly payments of $365.07, she finally paid off the loan.

Answers

Answer:

The total cost was $ 15,042.52, and the interest percentage applied on the loan was 8.22%.

Step-by-step explanation:

Given that to purchase $ 13,900 worth of lab equipment for her business, Amy made a down payment of $ 1900 and took out a business loan for the rest, and after 3 years of paying monthly payments of $ 365.07, she finally paid off the loan to determine the total cost and interest applied on the loan, the following calculation must be made:

(365.07 x 12 x 3) + 1900 = Total cost

4,380.84 x 3 + 1900 = Total cost

13,142.52 + 1900 = Total cost

15,042.52 = Total cost

13900 = 100

15042.52 = X

15042.52 x 100/13900 = X

1,504,252 / 13,900 = X

108.22 = X

Therefore, the total cost was $ 15,042.52, and the interest percentage applied on the loan was 8.22%.

Phil ate 2/3 of a Pizza. Erica eight 4/9 of the same sized pizza. Who ate more pizza? Explain

Answers

Phil did. 2/3 is greater than 4/9

Answer:

Phil ate more

Step-by-step explanation:

The LCD of both fractions is 9. Thus,

Phil ate 6/9 of a pizza while

Erica only ate 4/9 of the same sized pizza

Which system of equations has a solution of (-2,0,1)

Answers

The system of the equations that has a solution of (-2, 0, 1) will be x + y + z = -1, x + y + 2z = 0, and x + 2y + 3z = 1.

What is the linear system?

A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.

The system of the equations that has a solution of (-2, 0, 1) will be

Let the number of variables be x, y, and z.

Then we have

Then the first equation will be

x + y + z = -1

Then the second equation will be

x + y + 2z = 0

Then the third equation will be

x + 2y + 3z = 1

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a large chocolate bar has a base area of 49.47 square feet and its length is 0.5 foot shorter than twice its width find the length and the width of the bar

Answers

Step-by-step explanation:

Okay try doing one side will be equal to length or one of those..L×W×H

Use the INCLUSIVE definition of a trapezoid to identify the TRUE statement. Select all that apply.
No parallelograms are trapezoids.
All parallelograms are trapezoids.
No trapezoids are parallelograms
Trapezoids do not have any parallel sides
A trapezoid has at least one pair of parallel sides.
(I’ll mark brainlist of you wrote down, not link’)

Answers

Answer:

All parallelograms are trapezoids.

No trapezoids are parallelograms.

A trapezoid has at least one pair of parallel sides

Step-by-step explanation:

1. Since a parallelogram has two pairs of parallel sides then it has at least one pair of parallel sides. Therefore, all parallelograms are also classified as trapezoids.

2. Trapezoids have only one pair of parallel sides; parallelograms have two pairs of parallel sides. A trapezoid can never be a parallelogram.

3. A trapezoid has one pair of parallel sides.

(I can't put a picture, but I would if I could)

The statement "All parallelograms are trapezoids", statement "No trapezoids are parallelograms" and statement "A trapezoid has at least one pair of parallel sides" are correct.

What is a trapezoid?

It is defined as the quadrilateral having four sides in which two sides are parallel to each other, it is a 2-dimensional geometry.

A parallelogram has at least one pair of parallel sides, since it has two pairs of parallel sides. As a result, all parallelograms are considered trapezoids.

Parallelograms have two pairs of parallel sides, whereas trapezoids have only one pair. A parallelogram can never be a trapezoid.

Thus, the statement "All parallelograms are trapezoids", statement "No trapezoids are parallelograms" and statement "A trapezoid has at least one pair of parallel sides" are correct.

Learn more about the trapezoid here:

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Find x. Assume that segments that appear tangent are tangent.

Answers

Answer:

24

Step-by-step explanation:

By tangent secant theorem:

[tex]25(25 + x) = {35}^{2} \\ 625 + 25x = 1,225 \\ 25x = 1225 - 625 \\ 25x = 600 \\ x = \frac{600}{25} \\ x = 24[/tex]

Evaluate cos(60 degrees). Write your answer simplified, rationalized form.

Answers

Answer:

1 / 2

Step-by-step explanation:

Cos 60°

= 1 / 2

1 / 2 is the answe.

Find the distance CD rounded
to the nearest tenth.
C = (-5,4) D = (5,8)
CD = [?]
HINT: Use the distance formula:
d = V(x2 - xı)2 + (y2 - yı)2

Answers

Answer:

The distance is of 10.8 units.

Step-by-step explanation:

Distance between two points:

Suppose that we have two points, [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]. The distance between them is given by:

[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

In this question:

C(-5,4) and D(5,8). So

[tex]D = \sqrt{(5-(-5))^2 + (8-4)^2} = \sqrt{10^2 + 4^2} = 10.8[/tex]

The distance is of 10.8 units.

PLEASE HELP 11 POINTS FOR THE CORRECT ANSWER

Answers

Answer:

[tex]\sqrt{43}[/tex]

Step-by-step explanation:

Which graph shows a line with an x-intercept of (-4, 0) and a slope of −2/5

Answers

What do the graphs look like?

vzxxbxcbxvzbfdbnjdznvnjzkxnvjnjnjdb

lolhjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjodskvxhugvgxjchvgkzjgvcgkjzx

draw the image of ABC under a translation by 2 units up

Answers

Answer:

Move the corners of the triangle up the axis by two blocks.

A = (-7,-3)

B = (-2,6)

C=  (6,-3)

I need help with this question it would be nice if you could help

Answers

Answer:

v=433.33

Step-by-step explanation:

Is g(x)=9+7x a linear equation

Answers

Answer:

Yes

Step-by-step explanation:

A linear equation follows the y=mx+b equation. Your equation is g(x)= 7x+9 which follows the formula.

Answer:

Yes.

Step-by-step explanation:

Option #1: Graph the equation. (you can search "y=9+7x")

Option #2: Look at the equation. Rewrite it as "y=7x+9". This follows the form of y=mx+b, which is the form of a linear equation.

PLEASE ANSWER FAST!!!
An object is launched vertically at a velocity of 160 feet per second from the top of a building 100 feet above the ground. Use the model h=-16t^2+vt+c where h is the height of the object at any time t, c is the initial height, in feet, of the object, t is the time in seconds and v is the velocity of the object.
How long will it take the object to reach the maximum height, and what is the maximum height?(Round to the nearest whole number)

Answers

Answer:

The question let's us set up the equation

Hope it helps!

Step-by-step explanation:

160= 16t^2+96t+16 and we just solve for t to get t= 3(sqrt 2 - 1) and -3(sqrt 2 - 1).

Hope it helps!

8. Which of the following is the only one that is formatted correctly?



Answers

The answer is B because the parenthesis is on the infinity

unknown
QUESTION 27
A research survey of 4750 adults found that 4275 had purchased something online of these shoppers, 789 are weekly online shoppers.
Construct a 99% Confidence interval estimate of the population proportion of adults who had purchased something online
A The Point Estimate equals 50.60
(Round to 1 decimal place)
B. The Standard Error equals 1243
(Round to 4 decimal places)
The Critical Value equals
(Round to 2 decimal places)
(Round to 4 decimal places)
D. The Margin of Error equals
and
E. & F. We are 99% confident the true proportion of adults who purchased something online is between
(Round to 4 decimal places)

Answers

Hey is not working for the next time he is going on the road and I will start

Using the z-distribution, it is found that characteristics are:

a) 0.2

b) 0.0058

c) z = 2.575

d) 0.0149

e) (0.1851, 0.2149).

f) We are 99% confident the true proportion of adults who purchased something online is between 0.1851 and 0.2149.

Item a:

The point estimate is the sample proportion, hence:

[tex]\pi = \frac{789}{4750} = 0.2[/tex]

Item b:

The standard error is:

[tex]s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.2(0.8)}{4750}} = 0.0058[/tex]

Item c:

99% confidence level, hence[tex]\alpha = 0.99[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.99}{2} = 0.995[/tex], so [tex]z = 2.575[/tex].

Item d:

The margin of error is:

[tex]M = zs = 2.575(0.0058) = 0.0149[/tex]

Item e:

The interval is the point estimate plus/minus the margin of error, hence

[tex]\pi - M = 0.2 - 0.0149 = 0.1851[/tex]

[tex]\pi + M = 0.2 + 0.0149 = 0.2149[/tex]

The 99% confidence interval estimate of the population proportion of adults who had purchased something online is (0.1851, 0.2149).

Item f:

We are 99% confident the true proportion of adults who purchased something online is between 0.1851 and 0.2149.

A similar problem is given at https://brainly.com/question/16236451

Please help I’ll mark you as brainliest if correct

Answers

Answer:

10.2

Step-by-step explanation:

You construct a picture frame with a diagonal piece attached to the back for support, as shown below. Can you tell from the dimensions whether the corners of the frame are right angles?​

Answers

222Answer:

Step-by-step explanation:

As a given dimension of the rectangle frame satisfied the Pythagoras theorem, so the frame consists of right angles.

What is a rectangle?

The rectangle is 4 sided geometric shape whose opposites are equal in length and all angles are about 90°.

Here,
Constructed a picture frame with a diagonal piece attached to the back for support, as shown.
To check from the dimensions whether the corners of the frame are right angles, so from observation, the figure is of a rectangle, It must satisfy the Pythagoras theorem.
Diagonal = 39
Diagonal = √[15² + 36²]
Diagonal = √1521
DIagonal = 39

Thus, as a given dimension of the rectangle frame satisfied the Pythagoras theorem, so the frame consists of right angles.

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