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frozen [14]
3 years ago
6

I don't know what to do with this one????!!!!!

Mathematics
1 answer:
TiliK225 [7]3 years ago
8 0

Answer:

Step-by-step explanation:

height of post ÷ length of shadow = 2/10 = ⅕

height of tower is ⅕ the length of its shadow.

⅕×125 = 25

The tower is 25 feet tall

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List the next 4 multiples of the unit fraction . 1/2 ___,___,___,___,
const2013 [10]
½ × 2 = 1
½ × 3 = 3/2
½ × 4 = 2
½ × 5 = 5/2
8 0
3 years ago
Read 2 more answers
(3x2 – 5x + 6) + (2x2 + 7x - 9)
tatuchka [14]

Answer:

Step-by-step explanation:

3x^2 + 2x^2 - 5x + 7x + 6 - 9

5x^2 + 2x - 3

6 0
3 years ago
Solve Using Substitution<br>-9x + 6y = 18<br>y = -6​
Sidana [21]

Answer:

the answer should be x = -6

Step-by-step explanation:

-9x + 6y = 18

-9x + 6(-6) = 18

-9x - 36 = 18

-9x - 36 + 36 = 18 + 36

-9x = 54

-9x ÷ -9 = 54 ÷ -9

x = -6

6 0
3 years ago
A sound wave travels at 330m/s and has a wavelength of 2 m. calculate its frequency and period.
RoseWind [281]

Answer:

frequency= 165Hz

period= \frac{1}{165}

Step-by-step explanation:

1. To calculate the frequency using the formula:

f = v/λ

where,

f=frequency (what the question asked)

v=speed of wave (given in the question=330m/s)

λ=wavelength (given in the question=2m)

SO,

f=\frac{330}{2}

= 165Hz

2. To calculate the period use the formula:

since f=\frac{1}{T}

therefore, T=\frac{1}{f}

where,

f= frequency (what we solved above=165Hz)

T= period (what the question asked)

SO,

T=\frac{1}{165}

4 0
2 years ago
Find the mode(s) of the data.<br><br> 3<br><br> 5<br><br> 8<br><br> 9<br><br> There is no mode.
xeze [42]
There is no mode....
8 0
3 years ago
Read 2 more answers
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