1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
katrin [286]
3 years ago
7

A buliding 78ft high casts a 195ft shadow on sarah. sarah casts a 10ft shadow. how tall is sarah?

Mathematics
1 answer:
sergejj [24]3 years ago
5 0

Answer:

4 ft

Step-by-step explanation:

195/78=2.5

10/2.5=4

You might be interested in
Which graph does NOT represent a function?
masha68 [24]

Answer:

the answer is D because it does not have a function

7 0
2 years ago
Read 2 more answers
Two children, Ferdinand and Isabella, are playing with a water hose on a sunny summer day. Isabella is holding the hose in her h
wolverine [178]

Answer:

 f = 0.84 or 84%

Step-by-step explanation:

Given:

- Original constant velocity of water v_o = 3.5 m/s

- The original diameter of the hose opening d_o = 1.5 cm

- The total vertical distance y(f) = 1.0 m

- The total range x(f) = 10.0 m

Find:

What fraction of the original area does Isabella has to reduce or pinch so the water can cover the entire range.

Solution:

- We will assume the flow of water as a stream of particles that follow a path of single point.

- Using second kinematic equation in the vertical direction and compute the time it takes the water to reach the ground:

                                  y(t) = y(0) + v_y*t + 0.5*gt^2

Where, y(0) = v_y = 0,

                                  1.0 = 0.5*g*t^2

                                  t = sqrt ( 2*1 / 9.81 )

                                  t = 0.4515 s

- Now we will use the second equation of motion for the x- direction motion:

                                 x(t) = x(0) + v_x*t

Where, x(0) = 0,

                                 10 = 0 + v_x*(0.4515)

                                 v_x = 10 / 0.4515 = 22.1 m/s

- We have calculated the minimum velocity required to reach the range from isabella and ferdinand.

- We will use the continuity equation to compute the area required for the velocity calculated v_x = 22.1 m/s:

                                A_f*v_x = A_o*v_o

                                A_f = A_o*v_o / v_x

                                A_f = pi*0.015^2*3.5 / 4*22.1

                                A_f = 1.12 * 10^-4 m^2

- The fraction f of the reduction of area is:

                                f = (A_o - A_f) / A_o

                                f = (7.068*10^-8 - 1.12*10^-4) / (7.068*10^-8)

                               f = 0.84 or 84%

4 0
3 years ago
|a+3| ÷(a−3) , if a=−17<br><br> Please HELP
spin [16.1K]

<u>Answer:</u>

-0.7

<u>Explanation:</u>

All you do is substitute x.

Add/Subtract from left to right.

|-17 + 3| / (-17 - 3)

Find the absolute value of |-14|.

|-14| / (-20)

Divide.

14 / (-20)

-0.7

5 0
3 years ago
What it the x and y intercept of y=2x^2+3x+1
diamong [38]
The x-intercepts are (-1/2, 0) and (-1,0).

The y-intercept is (0,1).
8 0
3 years ago
The lovin lemonade company sells a 4 gallon jug of lemonade for $24 the sweet and sour company sells an eight pack of 1 quart bo
lbvjy [14]
One way to compare is to find the price per gallon.
$24 for 4 gallons = 24÷4 = $6 per gallon

8 pack of 1 qt bottle give you 2 gallons (4qts= 1 gallon)  So you get 2 gallons for $16
$16 ÷ 2 = $8.00 per gallon.  Sweet and Sour has the higher unit price.
Even if we compare the price per quart we will get the same answer as to who is selling it at the higher unit price.
4gal for $24 = 16 quarts for $24  ( 1 gallon = 4 qts)
$24 ÷ 16 = $1.50 each (1\frac{1}2})
vs.
 8 quarts for $16  $16 ÷ 8 = $2.00 per qt.  Sweet and sour still has the higher unit price 

7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the greatest common factor of 10, 7, and 14.
    14·2 answers
  • Choose the graph below that correctly represents the equation 2x + 4y = 24.
    13·2 answers
  • Name two angles that form a linear pair
    14·2 answers
  • Evaluate <br> lim x --&gt; 1 [(x^1000)-1]/[x-1]
    12·1 answer
  • (5 × 2) + (5 × 4) = 5 × (2 + 4)<br><br> Which picture represents this equation?
    13·2 answers
  • PLEASEE HELP THIS IS A MAP TEST
    11·2 answers
  • Choose ALL terms like 5x?
    11·1 answer
  • ABCDE is a pentagon. AM is the line of symmetry. How can you find all the inner angles?​
    14·1 answer
  • What is the volume of the sphere below PLEASE HELP FAST
    5·1 answer
  • Which statement best defines work?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!