3 years ago

У-17= -3 How do I solve it

Mathematics

2 answers:

OleMash [197]3 years ago

7 0

Answer: Ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

Veronika [31]3 years ago

7 0

Add the number on the side of the variable to the other side to get the variable by itself then you have your answer.

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What is 5(2x - 7) = step by step equation need please and thank you

stepladder [879]

5(2x-7)
= (5)(2x+-7)
= (5)(2x)+(5)(-7)
= 10x - 35

3 0

3 years ago

A polynomial function has -5+√3t as a root. Which of the following must also be a root of the function? a) -5-√3t b) -5+√3t c) 5

juin [17]

Answer:

Step-by-step explanation:

Radical roots occur as conjugate pairs

Given - 5 + $\sqrt{3}$ t is a root , then

- 5 - $\sqrt{3}$ t is also a root → a

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3 years ago

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Doss [256]

I'm pretty sure it would be 118 but I might be wrong

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3 years ago

A police car's siren operates at a frequency of 2,000 Hz. What frequency would a stationary listener observe if the police car i

SpyIntel [72]

we can use formula

$f_L=f_s(\frac{v_a-v_p}{v_a+v_p} )$

where

fL is listener frequency

fs is siren frequency

va is the speed of sound in air

vs is police car speed

so, we have

$f_s=2000Hz$

$v_a=345m/s$

$v_p=65mph$

now, we can change it into m/s

$v_p=65*\frac{1609}{3600}m/s$

$v_p=29.05139m/s$

now, we can plug it

$f_L=2000(\frac{345-29.05139}{345+29.05139} )$

$f_L=1689.33263Hz$ ..............Answer

3 0

3 years ago

Answer with solution

adelina 88 [10]

In general, the scalar multiple of k times u, is this:

 $k\vec u = k(ux, uy)=(Kux,Kuy)$

So, here's how we find $3\vec v$

$3\vec v = 3 * (2,4) = (3*2,3*4) 

= (6,12)$

The answer is (6,12).

6 0

3 years ago

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