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muminat
3 years ago
14

A yardstick casts a shadow of 24 in. at the same time a telephone pole casts a shadow of 20 ft 8 in. What is the height of the t

elephone pole, to the nearest inch? (1 yd = 36 in., and 1 ft = 12 in.) A. 165 in. B. 360 in. C. 372 in. D. 374 in.
Mathematics
2 answers:
Assoli18 [71]3 years ago
8 0

Its actually C. 372. I just took the test




Colt1911 [192]3 years ago
3 0
17ft 8in = 212 in  so according to the options I would say go with 165 so A.
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Jerald jumped from a bungee tower. If the equation that models his height, in feet, is h = –16t2 + 729, where t is the time in s
Snezhnost [94]

Answer. First option: t > 6.25


Solution:

Height (in feet): h=-16t^2+729

For which interval of time is h less than 104 feet above the ground?

h < 104

Replacing h for -16t^2+729

-16t^2+729 < 104

Solving for h: Subtracting 729 both sides of the inequality:

-16t^2+729-729 < 104-729

-16t^2 < -625

Multiplying the inequality by -1:

(-1)(-16t^2 < -625)

16t^2 > 625

Dividing both sides of the inequality by 16:

16t^2/16 > 625/16

t^2 > 39.0625

Replacing t^2 by [ Absolute value (t) ]^2:

[ Absolute value (t) ]^2 > 39.0625

Square root both sides of the inequality:

sqrt { [ Absolute value (t) ]^2 } > sqrt (39.0625)

Absolute value (t) > 6.25

t < -6.25 or t > 6.25, but t can not be negative, then the solution is:

t > 6.25



5 0
3 years ago
Read 2 more answers
The table shows the heights of students in a group.
Serjik [45]

Answer:

A 47 inches

Step-by-step explanation:

7 0
3 years ago
During a snowstorm, the temperature drops from 0°F to -12°F in 3 hours. On
Anastasy [175]

Answer:D.

-4°F

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Please answer all please​
Firdavs [7]

Answer:

Step-by-step explanation:

The first parabola has vertex (-1, 0) and y-intercept (0, 1).

We plug these values into the given vertex form equation of a parabola:

y - k = a(x - h)^2 becomes

y - 0 = a(x + 1)^2

Next, we subst. the coordinates of the y-intercept (0, 1) into the above, obtaining:

1 = a(0 + 1)^2, and from this we know that a = 1.  Thus, the equation of the first parabola is

y = (x + 1)^2

Second parabola:  We follow essentially the same approach.  Identify the vertex and the two horizontal intercepts.  They are:

vertex:  (1, 4)

x-intercepts:  (-1, 0) and (3, 0)

Subbing these values into y - k = a(x - h)^2, we obtain:

                                            0 - 4 = a(3 - 1)^2, or

                                                -4 = a(2)².  This yields a = -1.

Then the desired equation of the parabola is

y - 4 = -(x - 1)^2

7 0
3 years ago
joe puts $790.00 into a savings account that pays 5.5% simple interest. he leaves the money in his account for two years.
Dmitrij [34]

Answer: $879.29


Step-by-step explanation:

790(1.055)^2

790(1.113025)

= 879.28975


6 0
3 years ago
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