Please need help on this thank you

Mathematics

2 answers:

xenn [34]3 years ago

4 0

I’m pretty sure the answer is A

Alex787 [66]3 years ago

4 0

I agree with the answer of A

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The dimensions of a triangular lot are 142 feet by 67 feet by 141 feet. if the price of such land is $3 per square foot, how m

victus00 [196]

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4 years ago

Thanksgiving logic puzzle

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3 years ago

patricia says that it's more appropriate to use the method of factoring than extracting square roots in solving 4x2^-9=0. do you

zavuch27 [327]

$1^{o} \\ \\ 4x^{2}-9=0 \\ \\ (2x-3)(2x+3)=0 \\ \\ 2x-3=0 \ \vee \ 2x+3=0 \\ \\ 2x=3 \ \vee \ 2x=-3 \\ \\ x= \frac{3}{2} \ \vee \ x=- \frac{3}{2} \\ \\ 2^{o} \\ \\ 4x^{2}-9=0 \\ \\ 4x^{2}=9 \\ \\ x^{2}= \frac{9}{4} \\ \\ x= \sqrt{ \frac{9}{4} } \ \vee \ -\sqrt{ \frac{9}{4} } \\ \\ x= \frac{3}{2} \ \vee \ x=- \frac{3}{2} \\ \\ 3^{o} \\ \\ 4x^{2}-9=0 \\ \\ \Delta=0^{2}-4*4*(-9)=144 \\ \\ \sqrt{\Delta} =12 \\ \\ x_{1}= \frac{0+12}{8} = \frac{3}{2}$

$x_{2}= \frac{0-12}{8} =- \frac{3}{2}$

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4 years ago

Do u know rulers <3???

Phantasy [73]

Answer:

Uhh...

Step-by-step explanation:

What? Of course I know what a ruler is. One's next to me on my desk right now. Or are you talking about a ruler of a country?

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3 years ago

Solve for x.<br> 3x-12y=27

coldgirl [10]

Answer: x=4y+9

Step-by-step explanation:

All of the variables, 3x, 12y, and 27 can be divided y 3, so we will simplify by dividing the whole equation by 3.

3x/3-12y/3=27/3

Which is equal to....

x-4y=9

Now you can move -4y over to the right side by changing its sign...

x=4y+9

5 0

3 years ago

Read 2 more answers