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3 years ago

14

Charles needs construction paper to finish a project. To wrap the box he knows he needs a lot of construction paper. The box is

double the width for the length, the width is 4 inches, and the height is 10 inches. What is the surface area of this box?
Surface Area:

1 answer:

san4es73 [151]3 years ago

3 0

Answer:

304

Step-by-step explanation:

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In which division will the quotient be a three digit number ?

ruslelena [56]

Answer:

b)612÷6

Step-by-step explanation:

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I'm given 1/4 of a circle, how to find the rest of it

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3 years ago

Sam made 6 identical necklaces, each having beads and a pendant. the total cost of the beads and pendants for all 6 necklaces wa

Marizza181 [45]

Since six necklaces all together costs 31.80 to make, I divided 31.80 by 6 and got 5.3. That means that to make one necklace, they'd spend $5.30. The beads alone for 1 necklace cost $2.70, so I subtracted that from the $5.30.

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4 years ago

18. Find the center, vertices, and foci of the ellipse with equation x squared divided by 225 plus y squared divided by 625 = 1.

KengaRu [80]

Answer:

Center (0,0)

Vertices (-15,0), (15,0), (0,-25), (0,25)

Foce (0,-20), (0,20)

Step-by-step explanation:

You are given the ellipse equation

$\dfrac{x^2}{225}+\dfrac{y^2}{625}=1$

The canonical equation of ellipse with center at (0,0) is

$\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1$

So,

$a^2=225\Rightarrow a=15\\ \\b^2=625\Rightarrow b=25$

Hence, the center of your ellipse is at (0,0) and the vertices are at points (-15,0), (15,0), (0,-25) and (0,25)

This ellipse is strengthen in y-axis, so

$c=\sqrt{b^2-a^2}=\sqrt{625-225}=\sqrt{400}=20$

and the foci are at points (0,-20) and (0,20).

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3 years ago

You earn $11 per hour working at a grocery store during the summer. The function p(x)=11x represents the amount you earn for wor

frosja888 [35]

Answer:

A. $198 and B. 25

Step-by-step explanation:

11 × 18 is 198, which is the first answer.

If you take 275 and divide it by 11, you get how many hours you have worked, which would be 25. :)

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3 years ago

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