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GREYUIT [131]
3 years ago
15

NEED HELP ASAP

Mathematics
2 answers:
Reil [10]3 years ago
8 0
The 1st is 25 cm. 

Your welcome: Saumith/Matvey/Shreyas/Alec/Vendanti/RSM student/ whoever you are =)
ki77a [65]3 years ago
6 0
3. the equation is simple 

These are the two consectutive numbers x and x+1

√x = x - 3

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Yuri thinks that 3/4 is a root of the following function. q(x) = 6x3 + 19x2 – 15x – 28 Explain to Yuri why 3/4 cannot be a root.
k0ka [10]

Answer:

Yuri is not correct.

Step-by-step explanation:

Given expression is q(x) = 6x³ + 19x² - 15x - 28

If 'a' is a root of the given function, then by substituting x = a in the expression, q(a) = 0

Similarly, for x = \frac{3}{4},

q(\frac{3}{4})=6(\frac{3}{4})^3+19(\frac{3}{4})^2-15(\frac{3}{4})-28

       = 6(\frac{27}{64})+19(\frac{9}{16})-15(\frac{3}{4})-28

       = (\frac{162}{64})+(\frac{171}{16})-(\frac{45}{4})-28

       = (\frac{162}{64})+(\frac{684}{64})-(\frac{720}{64})-\frac{1792}{64}

       = -\frac{1666}{64}

       = -\frac{833}{32} ≠ 0

Therefore, Yuri is not correct. x = \frac{3}{4} can not be a root of the given expression.

6 0
4 years ago
Read 2 more answers
What is (x-2)(x+5)=0
Natasha_Volkova [10]

=  > (x - 2)(x + 5) = 0 \\  \\  =  > x(x + 5) - 2(x + 5) = 0 \\  \\  =  >  {x}^{2}  + 5x - 2x - 10 = 0 \\  \\  =  >  {x}^{2}  + 3x - 10 = 0 \\  \\ If \: we \: have \: to \: find \: value \: of \: x \:  \\ then \: substitute \: both \: the \: term \:  \\ equal \: to \: zero \\  \\  =  > x - 2 = 0 \:  \:  \:  \:  \:  \: x + 5 = 0 \\  \\  =  > x = 2 \:  \:  \:  \:  \:  \: x =  - 5 \\  \\  =  > x = 2 \: or \:  - 5
8 0
4 years ago
Sarah charges 41.80$ to style hair, as well as $4 per braid. Isabelle would like a style and braid, but has no more than $61.80
marin [14]

5 braids

Step-by-step explanation:

61.80 - 41.80 = 20

20÷4=5

8 0
3 years ago
Read 2 more answers
I’m reallyyy struggling so please help ;-;”
lorasvet [3.4K]
Potential energy is going to be in the middle. It goes kinetic-potential :)
7 0
4 years ago
Read 2 more answers
Mr. Foster is starting a new job. His salary for the first year is $30,000. He will receive a 5% raise each year after that. Wri
stira [4]

Answer:

s= 30000+1500x

Step-by-step explanation:

Given data

Le the number of years be x

His salary for the first year is $30,000

5% of $30,000

=5/100*30000

= 0.05*30000

= $1500

Hence for x years the salary can be described as

s= 30000+1500x

6 0
3 years ago
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