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SSSSS [86.1K]
3 years ago
11

A common scale for do-it-yourself airplane models is 1:48. The F-117A Stealth Fighter is 63 feet, 9 inches long. To the nearest

inch, how long would the model of this plane be?
Mathematics
1 answer:
givi [52]3 years ago
5 0

Answer:

15 feets, 11.25 inches

Step-by-step explanation:

Given that:

Scale = 1 : 48

Thus means that the model is 1/48 the actual size of the jet

Length of fighter jet = 63feets, 9 inches

Converting the entire length to inches

1 feet = 12 inches

63 feets = (12 * 63) = 756

Lenght of jet = (756 + 9) = 765 inches

1/48 * 765 = 15.9375 ; 15 feets, 11.25 inches

Hence, length of model = 15 feets, 11.25 inches

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What is the slope of the line through (-1, 2) and (-3,-2)?
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The answer of the slope or Gradient of the line is 2

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3 years ago
Which inequality represents all values of x for which the quotient below is O A. 1 O B. XS -1 O c. x 1 O D. x -1
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We have to solve two inequations:
Equation 1:
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6 0
3 years ago
Suppose that each semester at a particular community college Manuel has to pay $1478 in tuition and $121 in fees.
Kamila [148]

Answer:

Step-by-step explanation:

<em>Let x be time, in semesters, remaining before Manuel graduates</em>.  We find that Manuel's expenses are:

$1478/semester in tuition, and

$121/semester in fees

1.  <u>x semesters remaining:  fees</u>

  Remaining cost for fees, y, is the product of the fee times the number of semesters, x:

y =($121/semester)*x

y = ($121)*x

2.  <u>x semesters remaining:  tuition</u>

  Remaining cost, y, is the product of the tuition (times the number of semesters, x.  

y = ($1478/semester)*x + ($121/semester)*x

y = ($1599)*x

3.  <u>x semesters remaining:  tuition and fees</u>

  Remaining cost, y, is the sum of the products of the tuition (times the number of semesters, and the fees (tix.  

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5 0
1 year ago
Recall that Rn denotes the right-endpoint approximation using n rectangles, Ln denotes the left-endpoint approximation using n r
pogonyaev

Answer:

R_5=1.12

Step-by-step explanation:

We want to calculate the right-endpoint approximation (the right Riemann sum) for the function:

f(x)=x^2+x

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Find the width of each rectangle:

\displaystyle \Delta x=\frac{1-(-1)}{5}=\frac{2}{5}

List the <em>x-</em>coordinates starting with -1 and ending with 1 with increments of 2/5:

-1, -3/5, -1/5, 1/5, 3/5, 1.

Since we are find the right-hand approximation, we use the five coordinates on the right.

Evaluate the function for each value. This is shown in the table below.

Each area of each rectangle is its area (the <em>y-</em>value) times its width, which is a constant 2/5. Hence, the approximation for the area under the curve of the function <em>f(x)</em> over the interval [-1, 1] using five equal rectangles is:

\displaystyle R_5=\frac{2}{5}\left(-0.24+-0.16+0.24+0.96+2)= 1.12

3 0
3 years ago
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