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docker41 [41]
3 years ago
8

a 4 ft post casts a 20 inch shadow at the same time a nearby cell phone tower casts a 125 ft shadow. how tall is the cell phone

tower?

Mathematics
1 answer:
Natalka [10]3 years ago
4 0
Notice the picture below

so, the two triangles are similar by AA

thus \bf \cfrac{x}{4}=\cfrac{125}{20}  solve for "x"

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Some one help me pleaseeeeeeeeeee
julia-pushkina [17]

Answer:

slope = \frac{5}{2}

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, - 1) and (x₂, y₂ ) = (2, 4) ← 2 points on the line

m = \frac{4+1}{2-0} = \frac{5}{2}

3 0
2 years ago
What is the conclusion of the statement in the box below?
Nady [450]

Answer:

D

Step-by-step explanation:

x²=4

x=√4

X1=2

X2=-2

6 0
2 years ago
PLEASE HELP ASAP <br> what is the value of x? enter your answer in the box.
nika2105 [10]

Answer:

x=5

Step-by-step explanation:

We can use proportions to solve this problem.  Put the side of the small triangle over the side of the large triangle.

9           15

------ = ----------

2x-1        3x

Using cross products

9*3x = 15(2x-1)

27x = 30x-15

Subtract 30x from each side

27x-30x = 30x-30x -15

-3x = -15

Divide by -3

-3x/-3 = -15x/-3

x = 5

6 0
3 years ago
What expression is equivalent to -2x + 7
NARA [144]
I think that’s the answer

3 0
2 years ago
M×10+m×13=138<br><br>sorry theres another loll I'm so bad at these
Dimas [21]
So first of all you would add the two together
so it would be m23.

138÷23 would equal 6,

therefore m would equal six

to check it substitute m for 6 and you should get 138!
7 0
3 years ago
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