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
vlabodo [156]
3 years ago
12

If a trapezoid has an area of 21 cm and a height of 6cm, what are its bases?

Mathematics
1 answer:
zvonat [6]3 years ago
8 0

Answer:

Its base is 7

Step-by-step explanation:

6 x 7 = 42

42 ÷ 2 = 21

The base is 7

You might be interested in
Please help I don’t understand.... I will give brainliest to first and I will thank you!
Stolb23 [73]
To find the answer we can break the figure into two parts: a rectangle and a semi circle.

The perimeter of the rectangle:

(10+4)×2

=28 ft

The perimeter of the semi circle:

perimeter of a circle: 2×兀×radius

(The radius: 4/2)

We divide the perimeter by two as it is a semi circle,which is half the circumferece perimeter of a circle.

[2(3.14)(4/2)] / 2

=6.28 ft

We can then add up the numbers to find the answer, and remember that 4 cm is overlapped:

28+6.28-4

=30.28ft

Therefore the answer is 30.28ft.

Hope it helps!
5 0
3 years ago
What is the density of a 60-gram pyramid with rectangular base 5 cm x 7 cm and height 9 cm?
JulijaS [17]

Answer:

0.571428571429 grams per cm³

Step-by-step explanation:

density = mass/volume

Let’s calculate the volume V of the pyramid :

V = (1/3)×base×height

   = (1÷3)×(5×7)×9

   = 105 cm³

Then

The density = mass/volume

                    = 60÷105

                    = 0.571428571429

4 0
2 years ago
What is an equation of the line passing between(4, -6) and (12, -8)?*
I am Lyosha [343]

Answer:

y= -1/4x - 5

Step-by-step explanation:

first you need to find the slope.

to do this you can use the equation: change in y/change in x which is also y2 - y1/x2-x1

-8 - (-6)/12-4

-2/8

-1/4 = slope

since the line's equation is y = mx + b, we still need to find the y-intercept. we can do this by just plugging in one of the points

-6 = -1/4(4) + b

-6 = -1 + b

-5 = b

so the final equation is y= -1/4x - 5

4 0
2 years ago
to make hummingbird nectar you must use 4 cups of water and 1 cup of sugar. what is the ratio of water to sugar
Nutka1998 [239]
Your ratio is 4:1 because it takes 4 cups of water for every cup of sugar.
6 0
3 years ago
What % of 400 is 85?
quester [9]
21.25% because 85/400 = .2125 which is 21.25%
6 0
3 years ago
Other questions:
  • A graph is shown below: A graph is shown. The values on the x axis are 0, 2, 4, 6, 8, and 10. The values on the y axis are 0, 4,
    11·1 answer
  • How to find square root of 2
    10·1 answer
  • What is the circumference of the given circle in terms of pi?
    15·2 answers
  • Why was concrete better than stone for building in the Roman empire? A. It was more flexible than stone when dry. B. It was heav
    6·1 answer
  • The length of a plot of land is
    8·1 answer
  • Caroline took a math test and got 15 out of 25 correct. What was the percent of questions she got
    10·2 answers
  • The figure below shows a triangle with vertices A and B on a circle and vertex C outside it. Side AC is tangent to the circle. S
    10·2 answers
  • An environmental activist wants to look at the relationship between number of incentive actions taken by the government and the
    13·1 answer
  • -9x -2y=3<br> - 2x-y=-1<br> HELP ASAP
    5·1 answer
  • Choose a method you prefer to solve for a system of linear equations.<br> 2x + 4y = -4<br> 2x-y=6
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!