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2 years ago

10. A triangular piece of fabric has an area of 45 square inches. If the

Mathematics

1 answer:

Grace [21]2 years ago

5 0

Answer:

Step-by-step explanation:

Area of a triangle = 1/2 * base * height

Using the given information,

45 = 1/2 * L * 6

45 = 3L simplify

15 = L divide both sides by 3

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Mrs. Ishimitsu is installing a rubber bumper around the edge of her coffee table. The dimensions of the rectangular table are (2

ollegr [7]

Answer:

$2x^2+8x-30$ represents the total perimeter of the table, and if x = 3 the lentgh of entire rubber bumper is 12 feet.

Step-by-step explanation:

Perimeter is defined as the sum of sides.

For a rectangle having dimension length 'L' and breadth 'B' Since, rectangle has two sides equal.

Perimeter of rectangle = 2 ( length + breadth )

Here, given rectangle has dimension

Length = $2x^2-16$ and breadth = $-x^2+4x+1$

Thus, perimeter of rectangle = $2(2x^2-16+(-x^2+4x+1))$

$=2(2x^2-16-x^2+4x+1)$

$=2(x^2+4x-15)$

$=2x^2+8x-30$

Thus, perimeter of rectangle is $2x^2+8x-30$ ........(1)

Perimeter of rectangle , when x = 3,

Put x= 3 in (1) ,

$2x^2+8x-30\Rightarrow 2(3)^2+8(3)-30 \Rightarrow 18+24-30=12$

Thus, $2x^2+8x-30$ represents the total perimeter of the table, and if x = 3 the lentgh of entire rubber bumper is 12 feet.

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3 years ago

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The estimate obtained from a sample of which size is likely to be closest to the actual parameter value of a population?

Leno4ka [110]

Answer:

184

Step-by-step explanation:

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2 years ago

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Math Help!!! How many x-intercepts does the graph of the function have?

dalvyx [7]

It can have however many x intercepts it wants,

BUT, to be a function it must pass the vertical line test. 
this means you have to look at the graph and see if a vertical line drawn anywhere hits the graph more than once. 
if it hits it more than once, it is NOT a function.

An example is a polynomial function to the infinite degree. That is
f(x) = lim (n --> infinity) [ x^n]
but only 1 y intercept (vertical line test remember)

6 0

2 years ago

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The following list gives the number of pets for each of 9 students.

german

Answer:

2,2,2

Step-by-step explanation:

mode in my study is termed as highest occurrence

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2 years ago

The local library charges 6 cents for each day a book is overdue plus a one-time record keeping fee of 19 cents. the function ta

Natasha2012 [34]

B. 241
Because (6•37)+19=222+19=241 cents

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3 years ago