1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
maria [59]
3 years ago
8

Find y from the picture plz ​

Mathematics
2 answers:
Xelga [282]3 years ago
6 0

It's a six sided polygon.  For any polygon the external angles add to 360 degrees.  The internal angles shown are the supplements of the external angles.   We have

(180 - θ₁) + (180 - θ₂) + ... + (180 - θ₆) = 360

6(180) - 360 = θ₁ + θ₂ + θ₃ + θ₄ + θ₅ + θ₆

720 = θ₁ + θ₂ + θ₃ + θ₄ + θ₅ + θ₆

The six angles add up to 720 degrees, and five of them add to

126+101+135+147+96=605

So y = 720 - 605 = 115

The degree sign is external to y so not part of the answer:

Answer: 115

photoshop1234 [79]3 years ago
4 0

Answer:y = 115 degrees

Step-by-step explanation:

The given polygon has 6 sides. It is a hexagon. The sum of the interior angles of a polygon is

180(n - 2)

Where

n is the number of sides that the polygon has. This means that n = 6

Therefore, the sum of the interior angles would be

180(6 - 2) = 720 degrees

Therefore,

126 + 101 + 135 + 147 + 96 + y = 720

605 + y = 720

Subtracting 605 from both sides of the equation, it becomes

y = 720 - 605 = 115 degrees

You might be interested in
Need help to solve. ​
vredina [299]

Answer: y-intercept: (0, -0.7) and x-intercept: (-1.2, 0)

Recall: The coordinate of a point is always written as (x,y).

Look to the x- and y-axis and see where there's a point that's exactly on it; that'll be your x- and y-intercept.

The point (0, -0.7) is on the y-axis, so that's your y-intercept. The point (-1.2, 0) is on the x-axis, so that's your x-intercept.

5 0
2 years ago
Find the missing side of the triangle SHOW YOUR WORK!!
o-na [289]

139.49

Step-by-step explanation:

using trig ratios.

tan=o/a

tan74°=n/40

40tan74°=n

use calculator to solve

=139.49

hope this helped :)

7 0
2 years ago
Read 2 more answers
In a In a school of 567 pupils 278 are boys.
DIA [1.3K]

Answer:

49% of the pupils are boys and 51% are girls.

Step-by-step explanation:

Alright, so first, you've got to find the total number of students: 567.

Now, to find the value of 1%, you divide 567 by 100, which will give you 5.67.

Next, you divide the number of male students by the value of 1%. That's 278 ÷ 5.67 = 49.0299823633157.

Subtracting that from 100% gives you 50.9700176366843 (percentage of girls)

Now, you can't write all that down, so you'll round it! 49.0299823633157 will round down, because 0 is less than 5, so it's 49%. 50.9700176366843 rounds up, because 9 is greater than 5, so that's 51%.

Therefore, 49% of the pupils are boys and 51% are girls.

I hope this helps!

4 0
2 years ago
Sarah had invested $800 in a savings account that paid 4.2% interest compounded annually. How much money was in the account afte
schepotkina [342]

Answer:  $943.11

<u>Step-by-step explanation:</u>

Compound Interest formula is:   A=P(1+r)^t     where

  • A is the Accrued amount (total earned)
  • P is the Principal (amount initially invested)
  • r is the interest Rate (convert percent to a decimal)
  • t is the Time (number of years)

It is given that; P = 800    r = 4.2% (0.042)       t = 4

A = 800(1 + 0.042)⁴

A = 800(1.042)⁴

A = 943.106   →   A = 943.11 (rounded to the nearest penny)

Sarah invested $800 for four years at an interest rate of 4.2% and accrued $943.11

5 0
3 years ago
8r.) Find the amount A in an account after t years given the following conditions.
Elden [556K]

You can rewrite the differential equation as

50\cdot\dfrac{dA}{A}=dt\\\\50\ln{(A)}+C=t\qquad\mbox{integrating}\\\\t=50\ln{\left(\dfrac{A}{4000}\right)}\qquad\mbox{applying the boundary condition}

This last expression looks like the one you describe. If you solve for A instead of t, you get

A=4000\cdot e^{0.02t}

This is the same as your other answer.

8 0
3 years ago
Read 2 more answers
Other questions:
  • If a dozen roses cost 29.88 how much does 1 rose cost
    6·2 answers
  • Sally was 200 apples she Eliot’s all of them up in 39 how many apple slices would she have now
    7·1 answer
  • Milk is being poured into a cylindrical pail at a constant rate of 8 cubic inches per second. The pail has a base radius of 5 in
    12·1 answer
  • I don't know what to do??
    10·2 answers
  • Use the distributive property to express each sum With the gcf factored out .<br> 35+63
    10·2 answers
  • How can you find the domain of this sequence:2,4,6,8,10,12
    12·1 answer
  • 11. Alexis and Mariana are hiking, Alexis
    5·2 answers
  • What is the solution to the expression -2 - 3 - (-4)​
    12·2 answers
  • a pharmacist mixes 5g of a powder with 45cm³ of water to make a prescription medicine. how much powder should she mix with 81cm²
    9·1 answer
  • What is 1/2 plus 4 5/8 equal
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!