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Georgia [21]
1 year ago
14

Evaluate using the values given a+ba; use a=-1 and b=-2

Mathematics
1 answer:
Serjik [45]1 year ago
5 0
\begin{gathered} a+ba=a+b\cdot a \\ a=-1,b=-2 \\ \Rightarrow-1+(-2)\cdot(-1)=-1+(2)=1 \\ \Rightarrow a+ba=1 \end{gathered}

Thus, the answer is a+ba=1

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Describe the graph of the system of inequalities:
Mila [183]

Answer:

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Step-by-step explanation:

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4 0
2 years ago
6t-8=2(2t+1) please help
JulijaS [17]

Answer:

t=5

Step-by-step explanation:

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7 0
3 years ago
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Determine whether each point lies on the graph of the equation.(a) 2x - y - 3 = 0 (a) (1, 2)Yes, the point is on the graph.No, t
Neko [114]

Answer:

a) (1, 2) not on the graph.

b) (1, -1) is on the graph.

Step-by-step explanation:

Given the equation of the line as:

2x - y - 3 = 0

The points given are

a) (1, 2)

To determine whether it is on the graph of the line or not.

To do so, we can do 2 things:

1. Draw the graph and plot the point on the graph to check whether it is on the graph or not.

2. To put the point in the given equation of the line, whether the equation is satisfied or not.

For method 1: Kindly refer to the attached image of the line and point plotted.

Method 2:

Let us put x=1, y=2 in the Left Hand Side (LHS) of equation.

2\times 1 - 2 - 3\\\Rightarrow -3 \neq 0 , RHS

(1, 2) Not on the graph.

(b) (1, -1)

For method 1: Kindly refer to the attached image of the line and point plotted.

Method 2:

Let us put x=1, y=-1 in the Left Hand Side (LHS) of equation.

2\times 1 - (-1) - 3\\\Rightarrow 3-3 = 0 = RHS

(1, -1) is on the graph.

3 0
4 years ago
Is -2 a polynomial or not
Law Incorporation [45]
It is not a polynomial
4 0
3 years ago
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The Lupu Bridge in China is 12,795 ft long. The Hart Bridge in the USA is 3,845 ft long.
scoray [572]

Hello!  

We have the following data:  

Lupu Bridge (China) = 12,795 feet long

Hart Bridge (USA) = 3,845 feet long  

Let's divide the largest length by the shortest length, so we'll know how many times the Lupu Bridge is bigger than the Hart bridge, let's see:

\dfrac{12,795}{3,845} \:\:\boxed{\boxed{\approx 3,3\:longer}}\end{array}}\qquad\checkmark

__________________________

I Hope this helps, greetings ... DexteR! =)

4 0
4 years ago
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