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sertanlavr [38]
3 years ago
7

Sole the system by elimination -4x+9y=9 x-3y=-6

Mathematics
1 answer:
Natalka [10]3 years ago
5 0

Answer:

A) -4x + 9y = 9

B) x -3y = -6

We multiply B) by 3

B) 3x -9y = -18 Then add it to A)

A) -4x + 9y = 9

-x = -9

x = 9

9 -3y = -6

3y = 15

y = 5


Step-by-step explanation:


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Find the distance between the points given.<br><br>(-3, 2) and (9, -3)​
klemol [59]

Answer:

Distance = 13

Step-by-step explanation:

Using the distance formula, plug in the two points:

d = sqrt(9-(-3))^2+(-3-2)^2

d = sqrt(12)^2+(-5)^2

d = sqrt144+25

d = sqrt169

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6 0
3 years ago
Park two has 12 more benches than Park one. If 2 benches were transferred from Park two to Park one, then Park two would have 2
marta [7]

Answer:

There were 6 benches in park 1 and 18 benches in park 2.

Step-by-step explanation:

Let x be the no of benches in Park 1 and y in park 2.

Given that there are 12 more benches in park 2 than 1

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Next is if 2 benches were transferred from park 2 to park 1, then we have

x+2 in park 1 and y-2 in park 2.

Given that y-2 = twice that of x+2

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Verify:

Original benches 6 and 18.

18 = 6+12 hence I condition is satisfied

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6 0
3 years ago
Read 2 more answers
.<br> How do we write simple expressions using long &amp; synthetic division?<br><br> Explain
igomit [66]

Answer:

For not exact divisions: Writing the results as Quotient + Remainder over the Divisor.

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Step-by-step explanation:

Hi there,

In both algorithms, for long and synthetic divisions we must write the result as an expression following that order:

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2 years ago
Evaluate j/k -0.2k when j =25 and k = 5
denis-greek [22]
When you have an equation that has variables and you know the value of those variables, just plug it it. So plugging the vaules we get
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3 years ago
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Nutka1998 [239]

treat the tree trunk as a cylinder

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