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
snow_tiger [21]
1 year ago
5

A teacher grades 27 tests in 3 hours.find the constance of variation

Mathematics
1 answer:
Elena-2011 [213]1 year ago
8 0

Answer: 9

Step-by-step explanation:

27 divided by 3 is 9 so 9 is the constant variation

You might be interested in
HELP! DUE IN A FEW HOURS
Alenkasestr [34]

Answer:

Options (C) and (E).

Step-by-step explanation:

Rotation is a rigid transformation in which size and shape of the figure and image remains the same.

That means angles and sides of the triangles given in the figure will remain same after the transformations given.

Since, the given triangle has been rotated about a point Z, each rotation will share the vertex Z.

And every figure is the transformed form of the given triangle, all four triangles will be congruent.

Options (C) and (E) are the correct options.

4 0
3 years ago
Write in standard form: 22.2 x 10^5
garri49 [273]
2220000
 
it just means that 22.2 needs to be multiplied by 10, 5 times, so just move the decimal five to the right.
3 0
3 years ago
2 An art studio charges $65 per month for art lessons. There is also an additional supply fee of $25 at the time of registration
Bond [772]

Answer:

The equation should be, <em><u>65m+25=c</u></em>

3 0
3 years ago
Read 2 more answers
I need help with these two problems. [9 and 10] FORMULAS GIVEN!!
zaharov [31]
<h2>Question 9:</h2>

1. Use Pythagorean Theorem (a²+b²=c²) to solve for missing side of triangle and rectangle. x²+16²=20², or x²+256=400. So, x²=144, and x=12

2. Use formula: 1/2(h)(b1+b2). 1/2 (12) (30+14).

3. Simplify: 1/2 (12) (44)=1/2(528)=264

Area of whole figure is 264 square mm.

<h2>Question 10:</h2>

Literally same thing but with trigonometry.

1. Use sine to find out length of dotted line: sin(60°)=x/12

2: Simplify: 12*sin(60°)=x. x≈10.4 (rounded to the nearest tenth)

3. Use Pythagorean Theorem to find out last leg of triangle: 10.4²+x²=12²

4: Simplify: 108.16 +x²=144. x²=35.84 ≈ 6

5: Use formula: 1/2(h)(b1+b2). 1/2 (10.4) (30+36)

6: Simplify: 1/2 (10.4) (66) =343.2

7: Area of figure is about 343.2

Remember, this is an approximate answer with rounding, so it might not be what your teacher wants. The best thing to do is do it yourself again.

4 0
3 years ago
A baker uses a coffee mug with a diameter of 8 cm, to cut out circular cookies from a big sheet of cookie dough. What is the are
ryzh [129]

Answer:

A = 16\pi cm^{2}

Step-by-step explanation:

∵ The diameter of the mug is 8 cm and using to cut out circular cookies

∴ The diameter of each circular cookie is 8 cm

∴ Its radius = 8 ÷ 2 = 4

∵ Area of the circle = \pi r^{2}

∴ Area = \pi 4^{2}=16\pi cm^{2}

5 0
2 years ago
Read 2 more answers
Other questions:
  • Which statement about the inequality 215&lt;235 is true? On the vertical number line, 215 is located below 235. On the vertical
    10·1 answer
  • The speed of the international space station is 27,576 kilometres per hour.
    9·1 answer
  • Make the following changes to the number 5.376:
    11·1 answer
  • Use the drawing tool(s) to form the correct answer on the provided number line.
    14·1 answer
  • Please help me !!!
    13·1 answer
  • Shane set a goal to ride his bike 56 miles this week. he plans to ride 1/2 as many miles on Monday as he will on Tuesday. On Wed
    10·2 answers
  • A map is drawn so that every 1 inch on the map represents 50 actual miles. The table below can be used to record the actual dist
    8·1 answer
  • 4.<br> 3.7 cm<br> 4.5 cm<br> 2.2 cm<br> V=
    11·2 answers
  • Please help me on 7 &amp; 10
    11·1 answer
  • I don’t understand this problem
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!