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
yan [13]
3 years ago
15

If angle A in the diagram equals 45 degrees and and B is 4x + 5 degrees, determine the value of x.

Mathematics
1 answer:
Tresset [83]3 years ago
4 0

Answer: 10

Step-by-step explanation: subtract 5 by 45 to get 40 then divide 4 to get 10

You might be interested in
A scientists finds the bones of a dinosaur. What could help the scientists determine the approximate age of the dinosaur bones?
Julli [10]

Answer: B, the index fossils in the area of the bones.

(I do need 1 more brainliest to rank up, so if my answer is correct, that would be great, sorry if I sound rude.)

5 0
3 years ago
the probability density for a particle in a box is an oscillatory function even for very large energies. Explain how the classic
77julia77 [94]

Answer:

This is achieved for the specific case when high quantum number with low resolution is present.

Step-by-step explanation:

In Quantum Mechanics, the probability density defines the region in which the  likelihood of finding the particle is most.

Now for the particle in the box, the probability density is also dependent on resolution as well so for large quantum number with small resolution, the oscillations will be densely packed and thus indicating in the formation of a constant probability density throughout similar to that of classical approach.

8 0
3 years ago
What is the radius of 18 circle?<br><br><br><br><br>​
yulyashka [42]
To find the radius, then, we insert 18 in for the circumference. So 18=2∏r. Solving for r gives 9/∏, or approximately 2.86 inches.
8 0
3 years ago
onyango wishes to fence a rectangular research plot using 100 m of wire .one end of the plot has a wall already erected .calcula
earnstyle [38]

Answer:

1250 m²

Step-by-step explanation:

Let x and y denote the sides of the rectangular research plot.

Thus, area is;

A = xy

Now, we are told that end of the plot already has an erected wall. This means we are left with 3 sides to work with.

Thus, if y is the erected wall, and we are using 100m wire for the remaining sides, it means;

2x + y = 100

Thus, y = 100 - 2x

Since A = xy

We have; A = x(100 - 2x)

A = 100x - 2x²

At maximum area, dA/dx = 0.thus;

dA/dx = 100 - 4x

-4x + 100 = 0

4x = 100

x = 100/4

x = 25

Let's confirm if it is maximum from d²A/dx²

d²A/dx² = -4. This is less than 0 and thus it's maximum.

Let's plug in 25 for x in the area equation;

A_max = 25(100 - 2(25))

A_max = 1250 m²

5 0
3 years ago
-<br> Evaluate the following expression <br> 22 - 53 +3
astraxan [27]

Answer:

-28

Step-by-step explanation:

Remember the order of operations: pemdas (<u>p</u>arenthesis, <u>e</u>xponent, <u>m</u>ultiply, <u>d</u>ivide, <u>a</u>dd, <u>s</u>ubtract). Just simplify the expression.

22 - 53 + 3

(22-53) + 3

-31 + 3

-28

5 0
3 years ago
Read 2 more answers
Other questions:
  • If f(x) = x2 − 2x + 9 and g(x) = 8 − x, what is (f o g)(−4)?
    5·1 answer
  • What is the answer for -(2n-b)=-2
    13·1 answer
  • a bag contains 10 orange marbles 2 yellow marbles 5 purple marbles and 5 green marbles which color marble are you most likely to
    10·2 answers
  • Mariah cuts a rectangle along its diagonal. Two congruent triangles are created. The two angles created by the diagonal have a s
    6·2 answers
  • 5/6 + (-3/4) please help me out quick thank you
    12·1 answer
  • Suppose that there are 2 million inhabitants of a country in which 1 the mean gross (before tax) income is $20,000 per year. Sup
    15·1 answer
  • kelly answered 3 items on a test incorrectly. this was 6% of the items. How many items were on the test?
    12·1 answer
  • Help solve inequality
    14·1 answer
  • Last summer, an ice cream shop sold a small ice cream for $1.25 and a large ice cream for $3.75. The ice cream shop decided to r
    15·2 answers
  • A quarter throws a football from a height of 6.5 feet with an initial velocity of 64 feet per second
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!