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4 years ago

Witch value of x is in the solution of the following inequality -3x+5>17\

Mathematics

1 answer:

MA_775_DIABLO [31]4 years ago

8 0

The answer is D. -3x+5=17 you subtract 5 on both side and you will get 12 then divide it by -3.

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1 Kg = 2.2046 pounds what will be the answer in round to nearest tenth 4550 pounds = ______ kg

Harrizon [31]

Answer:

2063.9 kg

Step-by-step explanation:

Given,

1 kg = 2.2046 pounds

This can also be written as:

1 pound = 1/2.2046 kg

We have to calculate the value of 4550 pounds in kg up to nearest 10th

Thus,

$4550 pounds= \frac{4550}{2.2046} kg$

Solving the above equation, we get:

4550 pounds = 2063.8664 kg

Rounding the above result to nearest tenth as:

4550 pounds = 2063.9 kg

6 0

3 years ago

Simplify <img src="https://tex.z-dn.net/?f=%20%7B3%7D%5E%7B7y%7D%20%20%5Ctimes%20%20%7B81%7D%5E%7B8y%7D%20%5Ctimes%20%20%

Papessa [141]

Answer

$3^{7y} * 81^{8y} * 3^9 * 27^{-9y} = 3^{7y} * (3^4)^{8y} * 3^9 *(3^3)^{-9y}$

$=3^{7y} * (3)^{32y} * 3^9 *(3)^{-27y}\\\\=3^{7y +32y +9 -27y}\\\\=3^{12y+9}$

Tip :

$\frac{1}{27^{9y}} = 27^{-9y} = (3^3)^{-9y} = 3^{-27y}$

5 0

3 years ago

Read 2 more answers

Solve the system of linear equations and check any solution algebraically

Vedmedyk [2.9K]

It is pretty long, hope you understand
x+y+z=6
+
2x-y+z=3
-------------
3x+2z=9
->3x=9-2z (1)

3x-z=0
3x=z (2)

From (1)+(2)-> z=9-2z
solve for z
-3z=9
z=-3 (3)

plug (3) in (2)
->3x=-3
->x=-1 (4)

Plug (3) and (4) in x+y+z=6
-3+y+(-3)=6
solve for y
y-6=6
->y=12
Answer:
x=-1
y=12
z=-3

6 0

3 years ago

Read 2 more answers

Find the linear approximation of the function f(x, y, z) = x2 + y2 + z2 at (6, 6, 3) and use it to approximate the number 6.022

Licemer1 [7]

Near the point (6, 6, 3), we have the approximation

$f(x,y,z)\approx f(6,6,3)+f_x(6,6,3)(x-6)+f_y(6,6,3)(y-6)+f_z(6,6,3)(z-3)$

where the subscripted $f$ 's refer to the corresponding partial derivatives.

$f(x,y,z)=x^2+y^2+z^2$
$\implies\begin{cases}f_x(x,y,z)=2x\\f_y(x,y,z)=2y\\f_z(x,y,z)=2z\end{cases}$

So

$f(6.02,5.97,2.99)\approx80.8288$

Compare to more precise value,

$f(6.02,5.97,2.99)\approx80.8214$

6 0

4 years ago

What is the slope intercept equation of slope =2\3 y-intercept = 7

Inessa05 [86]

Steps:
1. Slope intercept formula=
Y=mx+ b
2. M= slope b= y-intercept
3. Now do substitution
4. Your answer is
Y=2/3x + 7

7 0

3 years ago