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3 years ago

Whats this surface area?

Mathematics

2 answers:

pishuonlain [190]3 years ago

4 0

Answer:

62 sq units

Step-by-step explanation:

Area of top and bottom rectangles =

2(5x3) = 15 x 2 = 30

Area of front facing and back facing rectangle =

2(2x5) = 2 x 10 = 20

Area of side facing rectangles =

2(2x3) = 2 x 6 = 12

Total surface area = 30+20+12 = 62

If my answer is incorrect, pls correct me!

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-Chetan K

vodka [1.7K]3 years ago

4 0

The answer is 62 square (sq) units

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Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = -8 + x^2 + 7 ?

Ad libitum [116K]

Answer:

The function translated 4 units right and 9 units down

The third answer

Step-by-step explanation:

* To solve the problem you must know how to find the vertex

of the quadratic function

- In the quadratic function f(x) = ax² + bx + c, the vertex will

be (h , k)

- h = -b/2a and k = f(-b/2a)

* in our problem

∵ f(x) = x²

∴ a = 1 , b = 0 , c = 0

∵ h = -b/2a

∴ h = 0/2(1) = 0

∵ k = f(h)

∴ k = f(0) = (0)² = 0

* The vertex of f(x) is (0 , 0)

∵ g(x) = -8x + x² + 7 ⇒ arrange the terms

∴ g(x) = x² - 8x + 7

∵ a = 1 , b = -8 , c = 7

∴ h = -(-8)/2(1) = 8/2 = 4

∵ k = g(h)

∴ k = g(4) = (4²) - 8(4) + 7 = 16 - 32 + 7 = -9

∴ The vertex of g(x) = (4 , -9)

* the x-coordinate moves from 0 to 4

∴ The function translated 4 units to the right

* The y-coordinate moves from 0 to -9

∴ The function translated 9 units down

* The function translated 4 units right and 9 units down

4 0

3 years ago

Ellen "The Wonderer" continues to walk in the path of an inscribed polygon. She starts at W, walks south until the boundary poin

mart [117]

Answer:

110°

Step-by-step explanation:

The path in the inscribed polygon walked by Ellen is shown in the diagram attached. Let the degrees in which Ellen must turn to get back to her starting point be T. Therefore to calculate T we use the theorem "An inscribed quadrilateral whose vertices all lie on a circle, the opposite angles of such a quadrilateral are in fact supplements for each other i.e their sum is 180 degrees."

Therefore: T + 70° = 180°

T = 180° - 70°

T = 110°

To get back to the starting point, Ellen must turn 110°

3 0

3 years ago

Angel invests money in an account paying simple interest. He invests $110 and no money is added or removed from the investment.

Elena-2011 [213]

Answer:

82.8

Step-by-step explanation:

4 0

3 years ago

URGENT PLEASE HELP ME!!

Andrews [41]

Answer:

D 2400 ft^2

Step-by-step explanation:

His joumey maps out a right angles triangle with base 80 and height 60.

The required area = 1/2 * 80 * 60

= 2400 ft^2

4 0

3 years ago

Solve for z.<br> a(5 - 2) = bx – 8<br><br> x=

nignag [31]

Answer:

x = (3a + 8)/b

Step-by-step explanation:

a(5 - 2) = bx – 8

bx = a(5 - 2) + 8

x = (3a + 8)/b

4 0

4 years ago

Read 2 more answers