A quadrilateral has angle measures of 50 degrees, 92 degrees, and 95 degrees. What is the measure of the fourth angle? Explain in detail how you used math to come to your answer. Hint: The sum of the angles of any quadrilateral is 360 degrees. (How would you solve it?

Answers

Answer 1

Answer:

?∠ = 123°

Step-by-step explanation:

? = 360 - 50 - 92 - 95 = 123°


Related Questions

Given that
X2: (20 – 3x) = 1 : 2
find the possible values of x.​

Answers

Answer:

Step-by-step explanation: x^2 : (20 - 3x) = 1 : 2

2x^2 + 3x - 20 = 0

(x + 4)(2x - 5) = 0

Solution:

x = -4

x = 5/2

Answer:

x= 2.5

x= 2.5x = - 4

Step-by-step explanation:

1:2

x² : (20 - 3x)

x2 : x 1

2x² : 1(20-3x)

2x² : 20 - 3x

+3x , then - 20

2x² + 3x - 20 = 0

2 x - 20 = - 40

x to get - 40

+ to get 3

(8 x - 5 = -40 & 8 + - 5 = 3)

Split 3x into 8x & - 5x, then factorise:

2x^2 + 3x - 20 = 0

2x^2 + 8x - 5x - 20 = 0

2x(x+4) - 5(x + 4)

(2x-5) (x+4) =0

2x - 5 = 0

+5

2x = 5

÷2

x = 2.5

x+4=0

-4

x = - 4

x=2.5,-4

Hope this helps!

Math help help help asap

Answers

Answer:

a) 0.071

b) 0.884

Step-by-step explanation:

a)

7.1 * 10^(2) = 7.1 * 0.01 = 0.071

b)

(6.8 * 10^2) * (1.3 * 10^(-3)) = 6.8 * 1.3 * 10^2 * 10^(-3) = 8.84 * 10^(-1) = 8.84 * 0.1 = 0.884

Answer:

a) 0.071

b) 0.884

Step-by-step explanation:

b) explanation

Group coefficients together and exponents together to multiply numbers in scientific notation.

(6.8 ⋅ 1.3) (10^2 ⋅ 10^−3)

Multiply 6.8 by 1.3

8.84 (10^2 ⋅ 10^−3)

Use the power rule a^m a^n = a^m+n  to combine exponents.

8.84 ⋅ 10^2 − 3

Subtract 3 from 2

8.84 ⋅ 10^ − 1

Convert  8.84 ⋅ 10^ − 1

from scientific notation.

0.884

hope this helps :) sorry I didn't include an explanation for a

p.s. i really need brainliest :)

Solve for z. 7z+ 4 – 9z = 8 z = [?]​

Answers

Answer:

z = -2

Step-by-step explanation:

7z + 4 - 9z = 8 (The first step is to combine like terms, so 7z -9z = -2z)

-2z + 4 = 8 (Subtract 4 on each side)

-2z = 4 (Divide each side by -2)

z = -2

You can plug -2 back in to check, and you get:

7(-2) + 4 -9(-2) = 8

-14 + 4 + 18 = 8

8 = 8

Hopefully, this helped. Good luck!

Answer:

z=-2

Step-by-step explanation:

7z+4-9z=8

7z-9z=8-4

-2z=4 divide by-2

z=-2

To test the effect of partial day care on academic performance in young children, you plan to use two groups of 4-year-olds from the same preschool class: one group is made up of randomly selected children who attend part-time day care; the other group includes randomly selected children who do not attend any day care other than preschool. Both groups will complete a brief test of academic performance during a regular preschool class. Which type of test should you use to compare the mean scores of the two groups

Answers

Answer:

Independent samples t test

Step-by-step explanation:

The experiment performed above, required the independent samples t test as it invilves two seperate and distinct, otherwise called independent groups whereby one group has no effect on the outcome of the other. The means a ND standard deviation of the first group (4 year Olds who attend part time daycare) and the other group (4 year Olds who do not attend part time daycare). Hence, the comparison can be made using the two independent samples t test ;

With possible hypothesis relation being :

H0 : μ1 = μ2

H1 : μ1 ≠ μ2

Please answer these 2!!!

Answers

Step-by-step explanation:

Answer attached...

Hope it helps :)

Rolling a 6 sided die. Find the probability the number rolled is less than 3 given that it’s a factor of 6.
( help please :) )

Answers

Answer:

33.333%

Step-by-step explanation:

a 6 sided die has the number 1,2,3,4,5,6. 2 are less than three so the chances of getting the of getting a number less than 3 is 2/6, simplified 1/3.

what expression is equivalent to (3^2)^-2

Answers

Answer:

1/81

Step-by-step explanation:

You just tap the calculator

Answer: 1/81

- First you simplify it to 3^-4

- Then express it with a positive exponent which goes to 1/3^4

- Then evaluate it to 1/81

hope this helps! :)

The number of music CDs sold in 1993 by one company was approximately 2.4 x 100. The number of music CDs sold by the same
company in 2001was approximately 7.3 x 107. What is the difference in CDs sold between 1993 and 2001?
sobod uopsand
A. 70,600,000

OB. 16,700,000
C. 7,060,000
D. 1,670,000
Reset Selection
US 5:33
o
Lenovo

Answers

Answer:

A

Step-by-step explanation:

100 points
Given log34≈1.262 and log37≈1.771, what is the value of log3(7 / 16)?
Use three decimal places
log3(7 / 16) =

Answers

Answer:

-0.753

Step-by-step explanation:

Given

log₃4 ≈ 1.262 and log₃7 ≈ 1.771

To find

log₃(7/16)

Solution

log₃(7/16) = log₃7 - log₃16 = log₃7 - 2log₃4 =1.771 - 2*1.262 = -0.753

log(a/b)=loga-logb

So

log_3(7/16)log_3(7)-log_3(16)log_3(7)-log_3(4²)log_3(7)-2log_3(4)1.771-2(1.262)-0.753

Solve for a. -4a - 2a – 7 = 11 a = [?]​

Answers

Answer:

a = -7/17

Step-by-step explanation:

Add -4a to -2a

This makes -6a. Then you add 6a to the left to cancel it out, but you must also add 6a to the right of the =

Then you have -7 = 17a

Divide 17 from both sides and you have -7/17 = a

1. Which form shows the slope-intercept form?
y = mx +b
Ax + By =C
y-y1 = m(x-x1)

Answers

Answer:

y = mx + b

Step-by-step explanation:

b is your y intercept while m is your slope which is just rise over run.

A rock is dropped from a height of 100 feet. Calculate the time between when the rock was dropped and when it landed. If we choose "down" as positive and ignore air friction, the function is

Answers

Answer: 2.49 s

Step-by-step explanation:

Given

Rock is dropped from a height of [tex]h=100\ ft[/tex]

Using the equation of motion [tex]h=ut+\frac{1}{2}at^2[/tex]

here, [tex]u=0[/tex] (Rock is dropped)

[tex]a=g[/tex]

Putting values

[tex]\Rightarrow 100=0+\dfrac{1}{2}gt^2\\\\\Rightarrow t^2=\dfrac{2h}{g}=\dfrac{2\times 100}{32.2}\\\\\Rightarrow t=\sqrt{6.211}=2.49\ s[/tex]

What is the square root of 6 - the square root of 12?

Please answer fast!

Answers

Answer:

1.01 or 1.0

Step-by-step explanation:

Square root of 6=6x6=36
Square roor of 12=12x12=144

HELP PLEASE!! ILL GIVE BRAINLIEST

Answers

x = -5 . I used photomath to solve this so it should be correct, hope this helps

Simplify the expression: (in the image attached)

Answers

Step-by-step explanation:

Hey there!

[tex]\tt{\dfrac{\dfrac{1}{x^2} + \dfrac{2}{y}}{\dfrac{5}{x} - \dfrac{6}{y^2}}}[/tex]

So, what we can do here is first take the Least Common Multiple here, on both Numerator and Denominator.

[tex]\tt{\dfrac{\dfrac{y + 2y^2 (1)}{x^2 y (2)}}{\dfrac{5y^2 - 6x (3) }{xy^2 (4)}}}[/tex]

[The number in brackets is for the next step :-

When we will further simplify it, we will multiply 1st with 4th and 2nd with 3rd.

[tex]\tt{\dfrac{y + 2y^2 \times xy^2 }{x^2 y \times 5y^2 - 6x }}[/tex]

[tex]\tt{\dfrac{y + 2y^2 \times y }{x \times 5y^2 - 6x }}[/tex] is the framed answer.

Answer:

[tex]\frac{y(y+2x^2)}{x(5y^2-6x}[/tex]

Step-by-step explanation:

Lets do the numerator and denominator seperately:

Numerator:

1/x^2 + 2/y

Find common denominator and add these 2 fractions:

This is x^2y (I just multiplied the 2 denominators together’

Now, do what you have done to x^2 to make it x^2y, ie. multiplied by y, to the 1. This = y

And do what you have done to y to make it x^2y, ie. multiplied by x^2, to the 2. This = [tex]2^{2}[/tex]

Now, arrange all numbers we have found into the correct order in the fraction. This is:

[tex]\frac{y+2x^{2}}{x^{2} y}[/tex]

Denominator:

5/x - 6/y^2

Find the common denominator  and subtract these two fractions:

This is xy^2

Now, do what you have done to x to make it xy^2, ie. multiply by y^2, to the 5. This = 5y^2

And do what you have done to the y^2 to make it xy^2, ie. multiply by x, to the 6, this is = 6x

Now, arrange all the numbers we have found into the correct order in the fraction

[tex]\frac{5y^{2}-6x}{xy^2}[/tex]

Now that we have the numerator and the denominator, we can solve the equation.

The original question asks us to divide the 2 fractions, so:

[tex]\frac{y+2x^{2}}{x^{2} y}[/tex]  divided by [tex]\frac{5y^{2}-6x}{xy^2}[/tex]

For the division of fractions, you just have to multiply the inverse of the 2nd fraction by the first, so

[tex]\frac{y+2x^{2}}{x^{2} y}[/tex] x [tex]\frac{xy^2}{5y^2-6x}[/tex]

Use cross multiplication to simplify the above expression to:

[tex]\frac{y(y+2x^2)}{x(5y^2-6x}[/tex]

Hope this helps, sorry its long ...

the area of a semi circle when the radius is 28cm

Answers

I don’t have a calculator on me but do

28^2 = ...
Times that by pi
Then divide by 3

9-x/5=3 solve the folloswing equation for x

Answers

Answer:

x = 30

Step-by-step explanation:

x=30

becausebsbsbbsbsbssbshjsjshbzjs

In the image provided, the circle is centered at point W with ZX←→ and ZY←→ tangent to ⊙W at X and Y, respectively.

Given ∡XWY=75°, what is ∡XZY?

A. 105°

B. 150°

C. 75°

D. 15°

Answers

9514 1404 393

Answer:

  A.  105°

Step-by-step explanation:

The external angle at Z is the supplement of the internal angle at W.

  Z = 180° -75° = 105°

  ∠XZY = 105°

Please help and explain thanks

A. EAD
B. DAC
C. BCA
D. CAE

Answers

Answer: EAD

Explanation: The angle mark is in between the points E, A, and D.

how many solutions does the function x^2+2x+2=0

a. 0
b. 1
c. 2
d. 3​

Answers

Answer:

A. 0

Step-by-step explanation:

use discriminant. discriminant value is negative so 0 solutions

Range the temperature from lowest to highest

For points!!!

Answers

Answer:

-5, -3, 9, 11, 15, 22

Step-by-step explanation:

idrk how to explain

What does f(2)=10 mean in the context of the situation?

Answers

Answer:

it means 2 × 5 = 10 is this good

PLEASE HELP THIS IS VERY IMPORTANT I WILL GIVE YOU BRAIN THING IF ITS CORRECT (you can use a calculator if you want)

Answers

a is 321. b is  52 . GOOD luck !!!!!!!!!!!!!!!!!

im B.O.R.E.D I NEED TO T.A.L.K

Answers

Answer: hi thanks for the five

Step-by-step explanation:

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

Answers

Answer:

= -15.4

Step-by-step explanation:

-10.6-4.8

= -(10.6+4.8)

= -15.4

you basically just add the negatives.

i hope this helps :)

Answer:

-15.4

Step-by-step explanation:

Subtract the numbers -10.6 - 4.8 to get -15.4

If you have any questions revolving around this topic,feel free to ask me and i will be happy to help,Good luck!

Solve for the value of k. ​

Answers

k=6

have an amazing day bye!

Answer:

Hello! k = 6

Step-by-step explanation:

40 + 90 = 130 so our last angle must be 50 sense this will add up to 180 so k = 6 because 7 x 6 = 42 and 42 + 8 = 50 so answer 6

A marine biologist randomly selected and placed radio tracking devices on 50 dolphins swimming in the Gulf of Mexico in 2020. He released the dolphins back into the population. A year later he caught 200 dolphins and found that 20 of them had tracking devices on them. What is the best estimate of the population of dolphins swimming in the Gulf of Mexico?

Answers

Answer:

Step-by-step explanation:

"The capture-recapture of individually distinctive signature whistles has not been attempted before," says the paper's senior author Dr Tess Gridley, Co-Director of Sea Search and the Namibian Dolphin Project and a postdoctoral fellow in the Department of Botany and Zoology at SU. "The dolphins use these sounds throughout life and each has its own unique whistle. Therefore, by recording signature whistles over time and in different places we can calculate where animals are moving to and how many animals there are in a population."

Working with Dr Simon Elwen of Stellenbosch University, the Namibian Dolphin Project has been researching Namibia's resident bottlenose dolphins for the past 12 years, and built up a catalogue of more than 55 signature whistles dating back to 2009.

This particular study was led by Emma Longden, who began the project during her BSc (Hons) Marine Biology degree at the University of Plymouth. As an undergraduate, Emma completed an internship with the Namibia Dolphin Project for a month in 2016, and returned again in 2018 to complete work on the mark-recapture project.

She analysed more than 4000 hours of acoustic data from four hydrophones positioned along the coast south and north of Walvis Bay, Namibia, during the first six months of 2016.

All in all, they identified 204 acoustic encounters, 50 of which contained signature whistle types. From these encounters, 53 signature whistle types were identified; 40 were in an existing catalogue developed in 2014 for the Walvis Bay bottlenose dolphin population, and 13 were newly identified. Of the 53 signature whistle types identified, 43% were captured only once, whereas the majority (57%) were recaptured twice or more.

"One of the great things about bioacoustics is that you can leave a hydrophone in the water for weeks at a time and collect so much data without interfering with the lives of the animals you are studying," says Emma, whose work on the project was also supervised by Dr Clare Embling, Associate Professor of Marine Ecology at the University of Plymouth.

Dr Embling added: "This work is incredibly important as it allows us to track and count the number of dolphins in small vulnerable populations. It builds on our previous research looking at the impacts of noise on marine organisms and monitoring vulnerable marine mammal populations. It also showcases the fantastic level of research that our marine biology students are able to achieve, and the opportunities available to them through our partnerships with conservation organisations such as the Namibia Dolphin Project and the Ocean Giants Trust."

Future research includes the work undertaken by PhD student Sasha Dines from Stellenbosch University to further refine the technique to better understand the population of endangered humpback dolphins in South Africa. Another PhD student, Jack Fearey from the University of Cape Town, is continuing to conduct research along the Namibian Coast.

You love watching movies on your phone! Unfortunately each movie uses about
0.75GB. For this billing cycle, you’ve already used up 3 GB and your cellular plan
has a 15 GB data limit. How many movies can you watch without going over your
data limit?

2) Is there only one possible value for M (the number of movies you can watch
without going over your data limit) or many values? Explain.

Answers

Answer:

2

Step-by-step explanation:

Solve for
x
xx.
Enter the solutions from least to greatest.
x
2
+
7
=
43

Answers

Answer:

The answer would therefore be 'x=18'.

Answer:

Step-by-step explanation:

7/7

os there one solution, no solutions, or infinate solutions to 4(4x-3) = 8(2x-2)+4

Answers

Answer:

All real Numbers, which basically ,means infinite solutions

Step-by-step explanation:

Other Questions
Write essay on student life I need help solve this !! Pls help pls not links ;) Read the excerpt from The Lottery. Soon the men began to gather, surveying their own children, speaking of planting and rain, tractors and taxes. They stood together, away from the pile of stones in the corner, and their jokes were quiet and they smiled rather than laughed. The women, wearing faded house dresses and sweaters, came shortly after their menfolk. They greeted one another and exchanged bits of gossip as they went to join their husbands. Soon the women, standing by their husbands, began to call to their children, and the children came reluctantly, having to be called four or five times. Bobby Martin ducked under his mother's grasping hand and ran, laughing, back to the pile of stones. His father spoke up sharply, and Bobby came quickly and took his place between his father and his oldest brother. Explain what is learned by the actions of the characters in the excerpt. The lottery was a happy occasion because the men told jokes, the children laughed, and the women were able to exchange gossip. The lottery may not have been a happy occasion because the men smiled rather than laughed, and the children were apparently very hesitant to join their families when it started. Most of the villagers were indifferent about the lottery since it was held every year, and they already knew the outcome this time. Most of the villagers were ready to do away with the lottery since it was an outdated custom, carried over from years past. rene completed a 10 mile run in 1 hour and 20 minutes. Which calculation would give her average speed (mph) using a scale: Three boys Isaac ,Alex and Ken are standing in different parts of a field .Isaac is 100 metres north of Alex and Ken is 120 metres east of Alex .Find the compass bearing of Ken from Isaac The author most likely chose to introduce her argument by way of a personal anecdote in order to How does Mountaineering help to improve our lifestyle? What is a hard cut?1. when the film fades to white between two clips2. when the film fades to black between two clips3. when two clips are edited together with no transition4. when two clips are shown side by side with a divider The wifes story1. Which of the following statements best describes a major theme of the text?A Individuals should be accepted for who they areB Individuals are not always who they seem to be.C Love can help overcome any obstacleD Individuals can change for the better. Help help help help help Help me pls TwT I am terrible at math select the statement that best describes how each passage conveys different information about the seneca falls convention PLEASE HELPPPPPPPPFind h in the figure given below. What would happen to the planets if the suns gravity did not exist Question 4At practice, Diego does twice as many push-ups asNoah, and also 40 jumping jacks. He does 62 exercisesin total. The equation 2x+40=62 describes this situation.What does the variable x represent?The number of push-ups Diego does.The number of push-ups Noah does.The number of jumping jacks Diego does.The number of jumping jacks Noah does. in which quadrant does the point (-7,3)lie? In which figure is the height of the cylinder half the radius? A cylinder with a height of 2 and diameter of 8. A cylinder with a height of 4 and diameter of 8. A cylinder with a height of 8 and diameter of 8. A cylinder with a height of 16 and diameter of 8. Mark this and return Calculate axis of symmetry and vertex for equation 4x squared + 8x = 32 How can a chemical reaction be sped up? Select from the drop-down menu to correctly complete the statement. Add a Choose... that is unaffected by a reaction. the choices are, A: catalyst B: coefficient C: product Find mDmD=greatly appreciate if done asap:)