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3 years ago

15

Describe how you would graph 2x+3y=6

1 answer:

8_murik_8 [283]3 years ago

4 0

Answer:

First get y by itself. (y=-2/3x +2). The y-intercept is at 2 and the slope is -2/3 so starting at (0,2) you would go down two and right three and continue doing that to create your graph.

Step-by-step explanation:

Desmos is always a good option for checking your graphs :)

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Which expression shows the first step in simplifying 2x – 3(x + 2y) – 5(y – 7x)?

artcher [175]

Answer: Option 3.

Step-by-step explanation:

1. To simplify the expression shown in the problem, the first step is to apply the Distributive property, this means that you must multiply the number that are outside of the parentheses by the numbers inside of them.

2. Then, you have that the first step is:

$2x-3(x+2y)-5(y-7x)=2x-3x-6y-5y+35x$

3. Therefore, you can conclude that the correct answer is the third option.

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3 years ago

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Factor by using the perfect square trinomial formula

sergejj [24]

It should be（x➕2）^2.right？

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3 years ago

Work out the volume of this hemisphere with diameter 9.6 cm

weqwewe [10]

Answer:

Please refer to the attachment

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3 years ago

HURRY PLEASE!<br> (g+2)^5

KengaRu [80]

Step-by-step explanation:

We need to use the binomial theorem/Pascal's triangle here.

(a+b)^5 = (5 choose 0)a^5 + (5 choose 1)a^4*b + (5 choose 2)a^3*b^2 + (5 choose 3)a^2*b^3 + (5 choose 4)a*b^4 + (5 choose 5)b^5.

5 choose 0 = 1

5 choose 1 = 5

5 choose 2 = 10

5 choose 3 = 10

5 choose 4 = 5

5 choose 5 = 1

And 1, 5, 10, 10, 5, 1, is the (5+1) = 6th row of pascal's triangle.

Therefore we get

g^5 + 5g^4*2 + 10g^3*2^2 + 10g^2*2^3 + 5g*2^4 + 2^5

which is

g^4 + 10g^4 + 40g^3 + 80g^2 + 80g + 32

Or, you could do the slow way, by just doing (g+2)(g+2)(g+2)(g+2)(g+2)

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3 years ago

Triangle ABC is similar to triangle DEF. The length of

zavuch27 [327]

Answer: $EF=15cm$

Step-by-step explanation:

You know that the triangle ABC and the triangle DEF are similar.

Therefore, if the lenght of AC is 12 centimeters and the lenght of DF is 10 centimeters, then you can find the ratio as following:

$ratio=\frac{DF}{AC}\\\\ratio=\frac{10cm}{12cm}\\\\ratio=0.8333$

Then, the calculte the length of EF, you must multiply the lenght BC of the triangle ABC by the ratio obtained above.

Therefore, the lenght EF is the following:

$EF=0.8333(18cm)\\EF=15cm$

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3 years ago

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