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Alex17521 [72]
3 years ago
15

The state capitol building in Baton Rouge, Louisiana, is 450 feet tall. Ella’s scale model of the building uses the scale 25 fee

t = 10 inches. How tall is Ella’s model? Question 1 options: A. 1,125 inches B. 180 inches C. 425 inches D. 18 inches
Mathematics
2 answers:
TiliK225 [7]3 years ago
8 0
450/25=18; 18x10=180. therefore the answer is B: 180 inches
Elina [12.6K]3 years ago
5 0
THE ANSWER Would BE B 
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Todd takes out a student loan for $25,000. The annual simple interest rate is 7.75%. If Todd will be paying $38,750 in interest
crimeas [40]

Answer:

20 years

Step-by-step explanation:

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3 years ago
Find the equation of a line which passes through (2 4) with a slope of ½​
Norma-Jean [14]

Answer:

The equation of the straight line is  x - 2y +6 =0

Step-by-step explanation:

<u>Explanation:</u>-

Given a point ( 2, 4) and slope m =  \frac{1}{2}

The equation of the straight line passing through the point and having slope 'm'

          y - y₁ = m ( x - x₁)

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          2( y -4) = ( x-2)

          2 y - 8 = x -2

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The equation of the straight line is  x - 2y +6 =0

4 0
3 years ago
Factorise and solve : x^3-x^2-4x+4
Alika [10]

(x - 1)(x - 2)(x + 2)

note that the sum of the coefficients 1 - 1 - 4 + 4 = 0

thus x = 1 is a root and (x - 1 ) is a factor

dividing x³ - x² - 4x + 4 by (x - 1)

x³ - x² - 4x + 4 = (x - 1)(x² - 4 ) (note (x² - 4 ) is a difference of squares )

x³ - x² - 4x + 4 = (x - 1)(x - 2)(x + 2)

(x - 1)(x - 2)(x + 2 ) =0

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6 0
3 years ago
What is the radius of the base of the cone in the figure below?
liubo4ka [24]

Answer:  approximately 12.17 units

==========================================================

Work Shown:

We'll use the tangent ratio to find r

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tan(49) = 14/r

r*tan(49) = 14

r = 14/tan(49)

r = 12.1700143294271

r = 12.17

The radius is approximately 12.17 units long.

7 0
2 years ago
Phonics is an instructional method in which children are taught to connect sounds with letters or groups of letters. A sample of
Fantom [35]

Answer:

A 90% confidence interval for the mean number of letter sounds identified in one minute is: (30.84, 37.34).

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

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Now, we have to find z in the Ztable as such z has a pvalue of 1 - \alpha.

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Now, find the margin of error M as such

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In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645\frac{23.44}{\sqrt{141}}

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The upper end of the interval is the sample mean added to M. So it is 34.09 + 3.25 = 37.34.

A 90% confidence interval for the mean number of letter sounds identified in one minute is: (30.84, 37.34).

6 0
3 years ago
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