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
stepan [7]
3 years ago
10

3x3-5/5x6+19 i don’t know what I’m don’t wrong

Mathematics
1 answer:
KonstantinChe [14]3 years ago
4 0

Hi there!

For these two equations, we would be using PEMDAS...

3·3=9-5=4

5·6=30+19=49

Hope this helps!

You might be interested in
Samantha's wrapping a holiday gift she cut an 18 inch piece of wrapping paper from a roll that was 3 yards long how much wrappin
Ilya [14]
She has 90 inches of wrapping paper left.
4 0
3 years ago
Read 2 more answers
The Surface Area of a square pyramid is 3600 ft. The slant height is 80 feet and the base is 20 feet. At most how many 1 foot cu
amm1812

Answer:

10,583 flexible cubes

9915 rigid cubes

Step-by-step explanation:

The equation for the surface area of a square pyramid is area of base plus perimeter of base multiplied by the slant height

Surface area = A + 1/2·p·s

The volume of the pyramid = 1/3×A×h

Where:

A = Area of the base = 20 × 20 = 400 ft²

h = The height of the pyramid = √((slant height)² - ((base side length)/2)²)

h = √(80² - (20/2)²) = 30·√7

The volume of the pyramid = 1/3*400*30·√7 = 4000·√7 ft³ = 10,583.005 ft³

If the cubes are flexible, approximately 10,583 cubes

For rigid cubes we have

Given that the height of the pyramid = 30·√7

The slope of the pyramid = 30·√7/10 = 3·√7

So an increase in height of 1 foot gives a reduction in width of 2/(3·√7)

The bottom can hold 400 cubes

The next layer can hold 19×19 = 361

3rd 361

4th 361

5th 324

6th 324

7th 324

8th 324

9th

Continuing, we get a total of about 9915 rigid cubes in the pyramid.

3 0
3 years ago
I don't know how to do this​
Gre4nikov [31]

Answer:

x = -11/5 and y = 24/5

Step-by-step explanation:

Use elimination.

First, we need to multiply so that at least one variable can cancel out.

We can multiply the top equation by 2.

So we get

4x + 6y = 20

Then, we can use elimination.

The x's cancel out.

So we get 5y = 24

Or y = 24/5

Then, we can plug in this y value back into the first equation to find x.

2x + 3(24/5) = 10

2x + 72/5 = 50/5

2x = -22/5

x = -11/5

So x = -11/5 and y = 24/5

5 0
3 years ago
Can someone please answer this
vlada-n [284]

Answer: 292

Step-by-step explanation: because you have to add every angle on the shape even the ones you cant see

3 0
3 years ago
Which formula represents this sequence
marysya [2.9K]

Answer:

pretty sure its b

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Mr.Nowlings garden has a length that is 7ft more than twice the width. Draw a diagram to represent this situation.Label each sid
    10·2 answers
  • Indicating whether the following statements are True (T) or False (F).
    12·1 answer
  • Factor completely. a2 + 28 a + 27
    10·1 answer
  • Solve -10.2+173.2xe^(-(10x)/(13))=52
    12·1 answer
  • Jose completes 2 assignments per day and already completed 5 assignments. He needs to complete a total of 15 assignments. What i
    15·1 answer
  • If three less than one half a number is equal to one-third of the same number, find the number​
    7·1 answer
  • Ashleigh wants to double her money. She put $5,000 in a bank account that pays 4% compounded continuously. How long will it take
    10·1 answer
  • What’s the slope of these two lines if right u hey brainlist
    12·1 answer
  • ​It takes an ant farm 6 days to consume 3/8 of an apple. ​(​Show all work) At that rate, in how many days will the ant farm cons
    9·1 answer
  • Write the equation of the trigonometric graph.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!