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Daniel [21]
3 years ago
6

Solve a system of equations using substitution –2x + 5y = 14 x = 8

Mathematics
1 answer:
gregori [183]3 years ago
7 0

Step-by-step explanation:

Putting value of x

-2(8) + 5y = 14

-16 + 5y = 14

5y = 14 + 16

5y = 30

y = 30 /5 = 6

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Se arrastra un bloque de 18 kg a través de una superficie con una fuerza de 300 N en donde el coeficiente de fricción de dicha s
ozzi

Answer:

10.9\ \text{m/s}^2

Step-by-step explanation:

m = Masa del bloque = 18 kg

F = Fuerza en el bloque = 300 N

\mu = Coeficiente de fricción = 0.6

El equilibrio de fuerzas del sistema viene dado por

F-f=ma\\\Rightarrow 300-0.6\times 18\times 9.81=18a\\\Rightarrow a=\dfrac{300-0.6\times 18\times 9.81}{18}\\\Rightarrow a=10.9\ \text{m/s}^2

La aceleración del bloque es 10.9\ \text{m/s}^2.

8 0
3 years ago
Choose the best answer that represents the property used to rewrite the expression.
Andre45 [30]

Answer:

The Quotient Property.

Step-by-step explanation:

Since all three logarithms have the same base (base-5), and you are subtracting 6 and 3, to solve this all you need to do is 6 / 3 because of the Quotient Property.

You aren't multiplying anything, so you wouldn't use the Product Property.

You are not messing around with powers, so you wouldn't use the Power Property.

And you aren't using addition or multiplication, so you wouldn't use the Commutative Property.

Hope this helps!

5 0
3 years ago
Crying cloud :’)<br> Ye-
-BARSIC- [3]

crying cloud? why?????

7 0
2 years ago
What is the slope of the line y= 1
Harrizon [31]

Answer:

The slope of y = 1 is 0

explanation:

Determining slope has been based on a simple formula, y2-y1 over x2-x1.

It is crucial to follow this formula in order to attain the proper slope.

When a simple expression is given, for instance; y = 1 then it could be divided by 0; thus, resulting in the answer simply being zero.

However, x=1  would contain the slope of undefined because any number divided by zero results in an undefined answer.



8 0
3 years ago
Find the measure of <br> a. 180 degrees<br> b. 149 degrees<br> c. 63 degrees<br> d. 32 degrees
Serhud [2]

Answer:

31 Degrees

Step-by-step explanation:

63+86= 149

180-149=31

6 0
3 years ago
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