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3 years ago

I need help on this

Mathematics

1 answer:

sdas [7]3 years ago

3 0

Answer:

The repetition is used to show how music was all she thought about.

Step-by-step explanation:

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Identify the characteristics of the graph (( (x+2)^2)/16)+ (((y-2)^2)/36)=1

Helen [10]

Elipse (since it is plus)
major axis is in up down direction (6 units up and down from center)
minor axis is in left right direction (4 units left and right form center)
center=(-2,2)

the 2 foci are (-2,2+2√5) and (-2,2+2√5)

5 0

3 years ago

How do you calculate surface area of trapezium with an angle

Kay [80]

Answer: There are eight steps and two methods. I will be showing you one of them. If you're wondering, I am in 7th grade. I go to K12 online school.

Step-by-step Explanation: 1. Add together the lengths of the bases. The bases are the 2 sides of the trapezoid that are parallel with one another. If you aren’t given the values for the base lengths, then use a ruler to measure each one. Add the 2 lengths together so you have 1 value.[1]

For example, if you find that the top base (b1) is 8 cm and the bottom base (b2) is 13 cm, the total length of the bases is 21 (8 cm + 13 cm = 21 cm, which reflects the "b = b1 + b2" part of the equation).
2. Measure the height of the trapezoid. The height of the trapezoid is the distance between the parallel bases. Draw a line between the bases, and use a ruler or other measuring device to find the distance. Write the height down so you don’t forget it later in your calculation.[2]

The length of the angled sides, or the legs of the trapezoid, is not the same as the height. The leg length is only the same as the height of the leg is perpendicular to the bases.

3. Multiply the total base length and height together. Take the sum of the base lengths you found (b) and the height (h) and multiply them together. Write the product in the appropriate square units for your problem.[3]

In this example, 21 cm x 7 cm = 147 cm2 which reflects the "(b)h" part of the equation.

4. Multiply the product by ½ to find the area of the trapezoid. You can either multiply the product by ½ or divide the product by 2 to get the final area of the trapezoid since the result will be the same. Make sure you label your final answer in square units.[4]

For this example, 147 cm2 / 2 = 73.5 cm2, which is the area (A).

7 0

2 years ago

An airplane has a maximum capacity of 118 passengers. The flight attendant has loaded 40 passengers. Which inequality represents

Alexeev081 [22]

Answer:

Problem 1.

If the plane can still load p no. of passengers , then,

p ≤ 78

Problem 2

With 6 servings of wings, Sarah can serve maximum 2 burgers.

Problem 3

x > 10 [where the passenger travels x miles by either Uber or Lift car]

Step-by-step explanation:

Problem 1

Let, the no. of passengers that the plane can still load is p.

Then, according to the question,

p ≤ (118 - 40)

⇒ p ≤ 78

Problem 2

Let, Sarah can serve x no. of wings and y no. of burgers.

Then according to the question,

6x + 3y < 45 ------------(1) and

x ≥ 4 --------------(2)

Now, for 6 servings of wings or for x = 6,

from (1)

3y < 9

⇒ y < 3

So, with 6 servings of wings, Sarah can serve maximum 2 burgers.

Problem 3

For, going x miles the Uber driver charges,

$ ( 3 + 0.5x)

while the Lift driver charges,

$ ( 2 + 0.6x)

So, the cost of Lift is greater than Uber when

2 + 0.6x > 3 + 0.5x

⇒0.1x > 1

⇒x > 10

3 0

4 years ago

Jones is getting a new laptop. The regular price is $986. The store is offering an 18% discount. What is the cost of the laptop

maria [59]

With 18% off it’s $808.52

3 0

3 years ago

Can anyone help me I really need help on this what I will give a brain for this

Hatshy [7]

well since the formula is pi times radius squared that means it's 4 pi times 4 pi since the radius is squared so it's 16 pi

7 0

3 years ago