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
Vesnalui [34]
3 years ago
14

PLEASE HELP ASAP PLEASE I'VE BEEN UP ALL NIGHT TRYING TO DO IT I DON'T UNDERSTAND PLZ HELPP!!​

Mathematics
2 answers:
shusha [124]3 years ago
6 0

Answer:

Angle COD=40

Step-by-step explanation:

(2a+62)+ (54-a)+(5a-20)=180

6a+96=180

6a=84

a=14

Angle AOC=2(14)+62=90

Angle COD=54-14=40

Angle DOB=5(14)-20=50

lianna [129]3 years ago
3 0

Answer:

Angle COD, 40 degrees

Step-by-step explanation:

Alrighty, to start, Angle AOB is a 180 degree angle because it is a line.

Therefore, if we combine all of the variables and numbers together, we can set it equal to 180 degrees to find a.

2a+62+54-a+5a-20

6a+96=180

6a=84

a=14

Next, plug in this value into each of the given angles provided with variables and numbers:

<u>Angle AOB: </u>

2a+62

2(14)+62

28+62

90 degrees

<u>Angle COD: </u>

54-a

54-14

40 degrees

<u>Angle DOB: </u>

5a-20

5(14)-20

70-20

50 degrees

<em>From this, it can be found that Angle COD has the smallest angle, with it being 40 degrees.</em>

You might be interested in
When a ray bisects an angle, it does all of the following except what?
tamaranim1 [39]
<span>The bisector of an angle is a ray whose end point is the vertex of the angle where it divides the angle into two smaller congruent angles. Therefore, it is in the interior of an angle and it shares a side.

</span>B.

<span>contains the vertex of the angle</span>
5 0
3 years ago
Read 2 more answers
Can y'all please help.
sattari [20]

Answer:

See explanation

Step-by-step explanation:

<u>Step 1.</u> Substitute for d to solve for n:

From the first equation:

d=70-n

Then substitute it into the second equation:

0.1(70-n)+0.05n=5.5\\ \\7-0.1n+0.05n=5.5\\ \\7+(-0.05n)=5.5\\ \\-0.05n=5.5-7=-1.5\\ \\n=\dfrac{-1.5}{-0.05}=30

<u>Step 2:</u> Substitute for n to solve for d:

d+n=70\\ \\d+30=70\\ \\d=70-30=40

There are 40 dimes and 30 nikels in the piggy bank

6 0
4 years ago
Write an equation that you can use to solve for x.<br><br> Enter your answer in the box.
Talja [164]

Answer:

x+63 = 90

x = 27

Step-by-step explanation:

The two angles are complementary, so they add to 90 degrees

x+63 = 90

Subtract 63 from each side

x+63-63 = 90-63

x = 27

7 0
3 years ago
Read 2 more answers
mr brown went to the grocery shopping to buy mean for this annual office picnic he bought 7 3/4 of hamburger, 17.85 pounds of ch
Katena32 [7]

7.75 hamburger

17.85 chicken

6.50 steak

TOTAL 32.10 pounds of meat

7 0
4 years ago
Carbon-141414 is an element that loses about 10\%10%10, percent of its mass every millennium (i.e., 100010001000 years). A sampl
Eduardwww [97]

Answer:

S(t) = 600*0.9^t

Step-by-step explanation:

At the beginning (t = 0) the sample has 600 grams. After 1 millennium from today (t = 1) the mass will be: 600 - 600*0.1 = 600*0.9. After 2 millennium from today (t = 2) the mass will be the 90% of the mass in the previous millenium, that is: 600*0.9*0.9 = 600*0.9^2. Analogously, at time = 3, sample's mass will be: 600*0.9^2*0.9 = 600*0.9^3. In a table format, that is

t       m

0      600

1       600 - 600*0.1 = 600*0.9

2      600*0.9*0.9 = 600*0.9^2

3      600*0.9^2*0.9 = 600*0.9^3

Therefore, sample's mass in grams, S(t), where t refers to millennia from today is computed as follows: S(t) = 600*0.9^t

7 0
3 years ago
Other questions:
  • The point (−3,15) undergoes a translation of 9 units right and 10
    6·2 answers
  • Name the property of equality or congruence that justifies going from the first statement to the second statement.
    11·1 answer
  • 81x-27, apply the distributive property to factor our of the greatest common factor
    10·1 answer
  • Write an absolute value equation that has 0 and 4 as its solution
    7·1 answer
  • The area of an 17-cm-wide rectangle is 374 cm squared. What is it’s length?
    8·1 answer
  • You bought two new CDs with the last $30 in your checking account, and your next payday is on Monday. What is the opportunity co
    14·1 answer
  • A circle has a circumference of \blue{18}18start color #6495ed, 18, end color #6495ed. It has an arc of length 666.
    7·1 answer
  • What number should be placed in the box to help complete the division calculation?
    11·1 answer
  • A rocket gets launched straight up into space. What is a possible description
    9·1 answer
  • 10(-2.5)(-4) what is the answer plz explain
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!