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
Lera25 [3.4K]
3 years ago
11

HELP I DONT UNDERSTAND!

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
6 0

Answer:

B

Step-by-step explanation:

5/2=15/6=20/8=2.5

You might be interested in
What is the volume of the regular pyramid?
ad-work [718]

Answer:

C

Step-by-step explanation:

The volume of the regular pyramid is V=\dfrac{1}{3}A_{base}H.

The base of given pyramid is regular hexagon with side 12 cm. The are of this hexagon consistsof area of 6 equilateral triangles and is equal to

A_{base}=6\cdot \dfrac{1}{2}\cdot 12\cdot 10.4=374.4\ cm^2.

Hence, the volume of the pyramid is

V=\dfrac{1}{3}\cdot 374.4\cdot 36=4,492.8\ cm^3.

7 0
3 years ago
at a party, everyone shook hands with everybody else. there were 66 handshakes. How many people shook hands?
Whitepunk [10]

Answer:

12

Step-by-step explanation:

0 + 1 + 2 + 3+ 4 + 5 + 6 + 7 +8 + 9 + 10 + 11 seems to equal 66. That means there are 11 + 1 = 12 people (don’t forget to count the person who shakes 0 hands)

7 0
3 years ago
A B C or D? Multiple choice please help
S_A_V [24]

Answer: a

Step-by-step explanation:

(6z³+3z²-4z+8) - (4z²-3z+2)

all of the numbers in the second set of parenthesis are going to have their signs switched so...

(6z³+3z²-4z+8) + (-4z²+3z-2)

now you add the two sets of parenthesis

<u>6z³ - z² - z + 6</u>

<u />

7 0
3 years ago
What’s an injective function?
Tanya [424]

Answer:

an Injective function is a function that maps distinct elements of its domain to distinct elements of its codomain. In other words, every element of the function's codomain is the image of at most one element of its domain.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The sales tax in your city is 8.8% and an item costs 63 dollars before tax how much tax would you pay them on that item roubd to
Alexandra [31]

Answer:

The amount of tax would be $5.59

Step-by-step explanation:

To find this amount, simply multiply the costs by the percentage (8.88%).

$63 * 8.88% = $5.59

5 0
3 years ago
Other questions:
  • Is negative 1/4 rational or irrational or not a real number
    10·1 answer
  • What is the completely factored form of 4x+20
    5·1 answer
  • Simplify the fraction 13/17
    12·2 answers
  • Yin has 3 blue shirts. 10% of her shirts are blue. Liang has 1.5 times as many shirts as Yin has.
    9·1 answer
  • Pls answer quickly ​
    9·1 answer
  • Convert the given measurements to the new units to be 37cm​
    12·1 answer
  • If Amy has 5 apples and she eats 3 how many does she have left?
    12·2 answers
  • What does the value of the mean absolute deviation tell you about the spread of the data? HURRY PLEASE ILL GIVE 35 POINTS
    14·2 answers
  • A farmer knows that a grocery store will reject a shipment of his vegetables if more than 4% of the vegetables contain blemishes
    13·1 answer
  • The figure will be dilated by a scale factor of 1.2. Find the new length. W: 25 in L: 40 in​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!