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2 years ago

Find the area of the following shape. You must show all work to receive credit. Please help!

Mathematics

1 answer:

lisabon 2012 [21]2 years ago

7 0

This is a compound figure
First, section off a triangle at bcd. The base is 8 units with a height of 2 units so the area is 8 square units.
Form a trapezoid between the areas where x is -3 to 1. Use the formula to find the area (28 square units).
There are two triangles left. Find the area of both of them (4 units and 2 units)
Add all of these values together to get a total of 42 square units

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A wedding planner purchased small and large lanterns for a wedding reception. The small lanterns cost $25 each, and the large la

Marina CMI [18]

Answer: y=12 x=28

Explanation:
x=Amount of Small Lanterns y=Amount of Large Lanterns
25x+40y=1180
x+y=40
x=40-y
25(40-y)+40y=1180
1000-25y+40y=1180
1000+15y=1180
15y=180
y=12
x+12=40
x=28

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2 years ago

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A rectangular block measures 3 cm x 4 cm x 3 cm how much water would it displace?

nika2105 [10]

Answer:

36c^3m^3x^2

Step-by-step explanation:

you first multiply 3 cm by 4 cm by 3 cm to get 36 cm.
its mass in air and its effective mass when submerged in water (density = 1 gram per cubic centimeter).
1.0 g/cm3
then you get the answer 36c^3m^3x^2

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2 years ago

This table represents a quadratic function. x y 0 -3 1 -3.75 2 -4 3 -3.75 4 -3 5 -1.75 What is the value of a in the function’s

serg [7]

Answer:

a = 0.25

Step-by-step explanation:

Our strategy to solve this problem will be to use the information given in the table to obtain first the value of c in the quadratic equation which has the form ax^2 + bx + c and then form a system of 2 linear equations and solve for the coefficients a and b as follow:

from x=0 and y=-3 a*0 + b* 0 + c = - 3

c = -3

from x=1 and y= -3.75

a*(1) + *(1) + (-3) = -3.75

a + b = -3.75 + 3 = -0.75

from x= 2 and y = -4

a* (2)^2 + b*(2) + (-3) = -4

4a + 2b = -4 +1

4a + 2b = -1

Now we can solve the system f equations by elimination:

a + b = -0.75

4a + 2b = -1

multiply first equation by -2 and add to the second and get

-2a - 2b = +1.50

4a + 2b = -1

2a = 0.50 and substituting into any of the equations get b = -1

so the quadratic equation has a= 0.25 b= -1 c= -3

we can even plug the any of the other values for x given in the table and check the answer.

8 0

2 years ago

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Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

Troyanec [42]

The domain is the x values

y = 2 - x

when x = -3
y = 2 - (-3)
y = 2 + 3
y = 5....so ur points are (-3,5)

when x = -2
y = 2 - (-2)
y = 2 + 2
y = 4....so ur points are (-2,4)

when x = -1
y = 2 - (-1)
y = 2 + 1
y = 3...so ur points are (-1,3)

when x = 0
y = 2 - 0
y = 2....so ur points are (0,2)

when x = 1
y = 2 - 1
y = 1...so ur point are (1,1)

so basically, u plot all of those points

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2 years ago

Yasmin has a bag containing 165 colored beads. Her classmates take turns selecting one bead from the bag without looking, record

adell [148]

Answer:

30 , 45 , 51 , 39

Step-by-step explanation:

You just add up the numbers until you get 165

5 0

2 years ago

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