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
alexgriva [62]
3 years ago
8

A 5-foot stick casts a shadow of 4 feet at the same time Elin casts a shadow of 4 feet 6 inches.

Mathematics
1 answer:
stira [4]3 years ago
7 0

Step-by-step explanation:

this creates 2 similar triangles.

that means all angles are the same. and all the side lengths of one triangle correlate to the corresponding side lengths of the other triangle by the same multiplication factor.

4' 6" = 4.5 ft (1 ft = 12 in)

4 × f = 4.5

f = 4.5/4 = 1.125

now the same factor applies also to the relation of the heights :

5 × 1.125 = 5.625 ft

0.625 × 12 = 7.5 in (again, 1 ft = 12 in, so 0.625 ft = 7.5 in)

Elin is 5' 7.5" tall.

so, answer C is correct.

You might be interested in
Use the drawing tool(s) to form the correct answer on the provided number line.
Nat2105 [25]

Answer:

j=42.36

Step-by-step explanation:

=15 to original answer

7 0
3 years ago
How can you simplify algebraic expressions
xenn [34]

Answer:

Algebraic expressions are simplified by using given operators

like as arithmetic

But in algebraic expression there are terms

5 0
2 years ago
What is the length of the line segment with end points (5, -7) and (5, 11)​
Law Incorporation [45]

Answer:

<h2>18</h2>

Step-by-step explanation:

The formula of a distance between two points:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

We have the points (5, -7) and (5, 11). Substitute:

d=\sqrt{(5-5)^2+(11-(-7))^2}=\sqrt{0^2+18^2}=\sqrt{18^2}=18

4 0
3 years ago
Simplify (2*4)−1.
EastWind [94]

The simplification form of the number expression (2⁴)⁻¹ is 1/2⁴ option (B) one over two raised to the fourth power is correct.

<h3>What is an integer exponent?</h3>

In mathematics, integer exponents are exponents that should be integers. It may be a positive or negative number. In this situation, the positive integer exponents determine the number of times the base number should be multiplied by itself.

It is given that:

The number expression is:

= (2⁴)⁻¹

Using the properties of the integer exponent:

= 1/2⁴

The above number is one over two raised to the fourth power

Thus, the simplification form of the number expression (2⁴)⁻¹ is 1/2⁴ option (B) one over two raised to the fourth power is correct.

Learn more about the integer exponent here:

brainly.com/question/4533599

#SPJ1

6 0
2 years ago
What is the value of "c" in the quadratic equation 3x 2 + 5x + 7 = 0?<br><br> 3<br> 5<br> 7
dmitriy555 [2]

Answer:

c=7

Step-by-step explanation:

They are just asking you to compare

ax^2+bx+c=0 to

3x^2+5x+7=0.

What constant values are in the place of a,b, \text{ and } c.

a=3

b=5

c=7

7 0
4 years ago
Read 2 more answers
Other questions:
  • 9 times as much as 7 tenths
    8·1 answer
  • Factor completely 4xy − 7x + 20y − 35.
    15·2 answers
  • When x=8 and y=20. Find y when x=68​
    5·2 answers
  • timmy writes the equation f(x) = x – 1. He then doubles both of the terms on the right side to create the equation g(x) = x – 2.
    9·1 answer
  • GEOMETRY How do I do these questions? #6,7,8. Please help thanks!!
    5·1 answer
  • Factor Completely: x^2-7x+10
    7·1 answer
  • Help plz:)))I’ll mark u Brainliest
    10·2 answers
  • If x+1=7, what is the value of x2 + 22 +1?
    6·2 answers
  • How do you get your answer
    5·1 answer
  • Find the magnitude of −3i<br> .
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!