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3 years ago

Is this correct if not what did i do wrong? im late to this ..

Mathematics

1 answer:

Fantom [35]3 years ago

5 0

If you’re suppose to use pi=3.14 then your answer is correct. but if they didn’t say to use pi as 3.14, then look at my working! hope this helps!

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Length of a rectangle is four times its width if the area of the rectangle is 196 yards find its perimeter

jeka94

Answer:

22 yd

Step-by-step explanation:

Length is four times its width -----> L=4W

area of rectangle is 196 -----> 196=LW

Plug L=4W into 196=LW giving you 196=(4W)W

Simplify a bit 196=4W^2

Divide both sides by 4: 196/4=W^2

Simplify a bit: 49=W^2

Square root both sides: 7 or -7=W

The width is 7 yd

The length is 4(7)=28 yd

Now its final part is for you to find the perimeter of this rectangle. The rectangle is a 7 yd by 4 yd rectangle.

Double both then add.. 14+8=22 yd

6 0

3 years ago

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2 Which graph shows a proportional relationship? a b c d

Harrizon [31]

Answer:

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6 0

3 years ago

Which of the following best describes the solution to the system of equations below?

OverLord2011 [107]

Answer: OPTION A

Step-by-step explanation:

The equation of the line in slope-intercept form is:

$y=mx+b$

Where m is the slope and b the y-intercept.

Solve for y from each equation:

$\left \{ {{5y=-4x+7} \atop {10y=-8x+14}} \right.\\\\\left \{ {{y=\frac{-4}{5}x+\frac{7}{5}} \atop {y=\frac{-8}{10}x+\frac{14}{10}}} \right.\\\\\left \{ {{y=\frac{-4}{5}x+\frac{7}{5}} \atop {y=\frac{-4}{5}x+\frac{7}{5}}} \right.$

As you can see the slope and the y-intercept of each equation are equal, this means that both are the exact same line. Therefore, you can conclude that the system has infinitely many solutions.

3 0

3 years ago

If u times 23 by 10 shouldn't u get 230 but my teacher says that's not it u have to did everything but I don't know what to did

cricket20 [7]

It is 230 I just clculated

4 0

3 years ago

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PLEASE HURRY I WILL GIVE 20 POINTS

Viktor [21]

Answer:

Her answer should have been x=17/34