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3 years ago

I don't know what to do, please help me

Mathematics

1 answer:

Mamont248 [21]3 years ago

3 0

Answer:

Step-by-step explanation:

$\frac{4^{3} }{2^{3} }$ = $\frac{64}{8}$ = 8

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What is 3/4(x2+4x+6)=13x-2

maxonik [38]

Answer:

$x_1=12.65\\\\x_2=0.685$

Step-by-step explanation:

$\frac{3}{4}(x^2+4x+6)=(13x-2)\\\\Multiply\ both\ sides\ by\ 4.\\\\3(x^2+4x+6)=4(13x-2)\\\\3x^2+12x+18=52x-8\\\\3x^2+12x+18-(52x-8)=0\\\\3x^2+12x-52x+18+8=0\\\\3x^2-40x+26=0$

Roots of Polynomial:

$Roots\ are\ polynomial\ ax^2+bx+c=0\\\\x=\frac{-b\pm \sqrt{(b^2-4ac)}}{2a}$

$Here\ a=3,\ b-40,\ c=26\\\\x=\frac{-(-40)\pm \sqrt{(-40)^2-4\times 3\times 26}}{2\times 3}\\\\x=\frac{40\pm\sqrt{1288}}{6}\\\\x_1=\frac{40+\sqrt{1288}}{6}\approx 12.65\\\\x_2=\frac{40-\sqrt{1288}}{6}\approx 0.685$

6 0

3 years ago

The scale factor of the blueprint of a gymnasium to the actual gymnasium is 1in/15ft . The area of the floor on the blueprint is

miskamm [114]

B) 25, 650 ft^2
If the ratio is 1:15, then the measurements of each side of the actual gym are 15 times greater than the scale's. So the areas would have a ratio of 1:225. 114 times 225 is equal to 25, 650

4 0

4 years ago

If y=5x-3 and 3x-y=-1, what is the value of y

Svet_ta [14]

Well if you make them both equal to y I got...
Y=-3x+1
Y=5x-3
But I don't think you can find it without the y since they are different variables. Like I know -3x and 5x are the slopes and 1 and -3 are the y intercepts but I'm stuck after that. Sorry if that wasn't any help.
Hope I helped.

3 0

3 years ago

Read 2 more answers

Triangle ABC is rotated to create the image A'B'C'. Which rule describes the transformation?

Masteriza [31]

Answer:

sorry i dont understand

8 0

3 years ago

Duns<br> who<br> 3. Which is greater 1.06 or 1.061? Explain your thinking.

umka2103 [35]

Answer:

1.061

Step-by-step explanation:

1.061 is greater because it has a one at the end, compared to the 1.060.

If this answer is correct, please make me Brainliest!

7 0

3 years ago