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3 years ago

Find the values of a and b so that the linear system has the given solution.

Mathematics

1 answer:

mojhsa [17]3 years ago

3 0

Answer:

<em>The values are a=6, b=8</em>

Step-by-step explanation:

The following system of equations

ax - by = 4

bx - ay = 10

Has the solution x=2, y=1. Substituting:

2a - b = 4 [1]

2b - a = 10 [2]

Multiply [1] by 2:

4a - 2b = 8

Add with [2]:

3a = 18

a = 18/3 = 6

a = 6

From [1]:

2*6 - b = 4

b = 12 - 4

b = 8

The values are a=6, b=8

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Which of the following is equal to 4 and 2/3 ÷ by 3 and 1/2

Natalka [10]

4 and 2/3 = 14/3

3 and 1/2= 7/2

so 14/3:7/2= 14/3*2/7

the B is correct

5 0

3 years ago

I'm pretty sure the answer's one, but I need an expression. I will give brainiest to whoever answers this!!!

givi [52]

Answer:

0x+1 (or just 1)

Step-by-step explanation:

if non shaded/ white tiles are negative, and shaded positive expression would look like:

2x+4 and -2x-3

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3 years ago

Does the following infinite series converge or diverge? 1/3+2/9+4/27+8/81+...

PilotLPTM [1.2K]

Note that A and D are ludicrous choices, so you can throw them away outright. (Any divergent series cannot have a sum, and any convergent series must have a sum.)

The sum is certainly convergent because it can be written as a geometric sum with common ratio between terms that is less than 1 in absolute value.

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$S=\dfrac13\left(1+\dfrac23+\dfrac{2^2}{3^2}+\dfrac{2^3}{3^3}+\cdots\right)$

We can then find the exact value of the sum:

$\dfrac23S=\dfrac13\left(\dfrac23+\dfrac{2^2}{3^2}+\dfrac{2^3}{3^3}+\dfrac{2^4}{3^4}+\cdots\right)$

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So the answer is B.

8 0

3 years ago

1. Solve the system below by graphing. Show all work. Be sure to label each line, check the

KIM [24]

Point form
(-1,-8)
Equation Form:
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7 0

3 years ago

Read 2 more answers

Help me pls thank you

Tanzania [10]

Answer:

discrete

Step-by-step explanation:

This graph is discrete. A discrete graph has separate values, which are represented by multiple unconnected points. In continuous graphs, the values are all connected to each other. If this graph was continuous, then we would see a line rather than separate dots. The graph can also not be neither continuous nor discreet because it passes the vertical line test, meaning that it is a function.

Hope this helps :)

8 0

3 years ago