Ask question

Ask question

All categories

3 years ago

12

Evaluate 8 - 4.7y - x, when y = -1 and x = 2. A. -10.7 B. -9.7 C. 9.7 D. 10.7

1 answer:

zysi [14]3 years ago

5 0

The value of the equation is 10.7

Step-by-step explanation:

Step 1: Solve the equation when x = 2 and y = -1

⇒ 8 - 4.7y - x = 8 - 4.7 × -1 - 2 = 8 + 4.7 - 2

= 12.7 - 2 = 10.7

You might be interested in

Given (x)=-x²+2x,determine<br> F'(x) using first principle

mote1985 [20]

Hello,
which principle?

f(x)=-x²+2x
==>f'(x)= -2x+2

You mean maybe this

$\lim_{h \to 0} \frac{f(x+h)-f(x) } {h}$

f(x+h)=-(x+h)²+2(x+h)= -(x²+2hx+h²)+2x+2h
f(x)=-x²+2x

$\lim_{h \to 0} \frac{f(x+h)-f(x) } {h}=\lim_{h \to 0}\frac{-2hx-h^2+2h}{h}=\lim_{h \to 0}\frac{-2x-h+2}{1}=-2x+2$

6 0

3 years ago

What is 2x x54 <br> people with the best answer get a friend reqised

sergejj [24]

2x X 54 is going to be 108x

since both are positive you will get a positive #
54 X 2 is 108

6 0

3 years ago

PLEASE HELPPPPPPP!!! WILL GIVE BRAINLIEST :)

djverab [1.8K]

Answer:

Give him brainliest

Step-by-step explanation:

4 0

3 years ago

Please help!!As soon as possible!!

pychu [463]

Answer: Their equations have different y-intercept but the same slope

Step-by-step explanation:

Since, the slope of the line passes through the points (2002,p) and (2011,q) is,

$m_1 = \frac{q-p}{2011-2002} = \frac{q-p}{9}$

Similarly, the slope of the line asses through the points (2,p) and (11,q) is,

$m_2 = \frac{q-p}{11-2} = \frac{q-p}{9}$

Since, $m_1 = m_2$

Hence, both line have the same slope.

Now, the equation of the line one having slope $m_1$ and passes through the point (2002,p) is,

$y - p = \frac{q-p}{9}(x-2002)$

Put x = 0 in the above equation,

We get, $y = \frac{2000(p-q)}{9}+p$

The y-intercept of the line one is $(0, \frac{2000(p-q)}{9}+p)$

Also, the equation of second line having slope $m_2$ and passes through the point (2,p)

$y-p=\frac{q-p}{9}(x-2)$

Put x = 0 in the above equation,

We get, $y = \frac{2(p-q)}{9}+p$

The y-intercept of the line one is $(0, \frac{2(p-q)}{9}+p)$

Thus, both line have the different y-intercepts.

⇒ Third option is correct.

6 0

3 years ago

Please help And be clear about you answer.

zimovet [89]

I'm not 100% sure on this. I think it's 23.

7 0

3 years ago