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3 years ago

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]

$= > (x - 2)(x + 5) = 0 \\ \\ = > x(x + 5) - 2(x + 5) = 0 \\ \\ = > {x}^{2} + 5x - 2x - 10 = 0 \\ \\ = > {x}^{2} + 3x - 10 = 0 \\ \\ If \: we \: have \: to \: find \: value \: of \: x \: \\ then \: substitute \: both \: the \: term \: \\ equal \: to \: zero \\ \\ = > x - 2 = 0 \: \: \: \: \: \: x + 5 = 0 \\ \\ = > x = 2 \: \: \: \: \: \: x = - 5 \\ \\ = > x = 2 \: or \: - 5$

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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

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3 years ago

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I’m reallyyy struggling so please help ;-;”

lorasvet [3.4K]

Potential energy is going to be in the middle. It goes kinetic-potential :)

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4 years ago

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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