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4 years ago

PLEASE HELP & SHOW WORK , ITS URGENT it’s appreciated <3 !!

Mathematics

2 answers:

dmitriy555 [2]4 years ago

6 0

see if u understand the answer

tankabanditka [31]4 years ago

3 0

Answer:

Step-by-step explanation:

The circumference (C) of a circle is calculated using

C= 2πr ← r is the radius and has to be found

Given C = 20π , then

2πr = 20π ( divide both sides by 2π )

r = $\frac{20\pi }{2\pi }$ = 10

The area (A) of a circle is calculated using the formula

A = πr² = π × 10² = 100π m² → C

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Solve for y.<br> 12x + 3y = 6

mart [117]

$\text {Hey! Let's Solve this Equation!}$

$\text {\underline {To Solve this Eqaution you Add -12x}}$

$\text {12x+3y+-12x=6+-12x}$

$\text {\underline {The Final Step is to Divide 12}}$

$\text {3y/3=-12x+6/3}$

$\text {Your Answer Would Be:}$

$\fbox {y=-4x+2}$

$\text {Best of Luck!}$

3 0

3 years ago

Read 2 more answers

Is (-5,-8) a solution of y>3x+6

yuradex [85]

Answer:

yes

Step-by-step explanation:

To figure out if a point works with it's equation, you should replace the x and y with the point you got

-8 > 3(-5)+6

-8 > -15 +6

-8 > -9

Since -8 is bigger than -9, point (-5,-8) is true to the equation.

and as seen in the graph I have attached, the point does infact reside in the shaded in area. If you haven't learned how to graph this type of equation, you may disregard the graph :)

If you have any questions at all, don't be afraid to ask :)

3 0

3 years ago

(07.01 LC)

Svetradugi [14.3K]

Answer:

Step-by-step explanation:

Because 2 times 1 is 2 plus 1 is equal to 3

3 0

3 years ago

What is the difference in area covered by a single 3 inch windshield wiper operating with a central angle of 138 degrees compare

Elena-2011 [213]

Answer:

38.9 square inches.

Step-by-step explanation:

We are asked to find the difference in area covered by a single 3 inch windshield wiper operating with a central angle of 138 degrees compared to a pair of 5 inch wipers operating together each having a central angle of 114 degrees.

We will use area of sector formula to solve our given problem as:

$\text{Area of sector}=\frac{\theta}{360}\times \pi r^2$ , where, r represents radius and theta represents central angle.

Let us find area of sector with central angle 140 degree and radius 3 inch.

$\text{Area of sector}=\frac{138}{360}\times \pi (3)^2$

$\text{Area of sector}=\frac{138}{360}\times 9\pi$

$\text{Area of sector}=10.83849$

Now, we will find area of sector with central angle 114 degree and radius 5 inch and multiply by 2 as:

$\text{Area of sector}=2(\frac{114}{360}\times \pi (5)^2)$

$\text{Area of sector}=2(\frac{114}{360}\times 25\pi)$

$\text{Area of sector}=\frac{114}{360}\times 50\pi$

$\text{Area of sector}=49.74188$

Let us find difference of area as shown below:

$\text{Difference of areas}=49.74188-10.83849$

$\text{Difference of areas}=38.90339$

$\text{Difference of areas}\approx 38.9$

Therefore, the difference in area covered is approximately 38.9 square inches.

8 0

3 years ago

Perform the indicated operation. 5/17 ∙ 3/8

Vesna [10]

5/17 x 3/8 (a dot in sky means multiplication if you didn't know
lets break it down:
5 x 3=15
and
17 x 8=136
so the answer would be 15/136
Hope this helps

4 0

3 years ago

Read 2 more answers