If the radius of the circle is 7 cm, find its area, rounded to 2 decimal places.

A= _______ cm2

Answer:

x=  

10

429

​  

​  

≈2.071231518

x=−  

10

429

​  

​  

≈−2.071231518

Step-by-step explanation:

12.7−xx=8.41

Multiply x and x to get x  

2

.

12.7−x  

2

=8.41

Subtract 12.7 from both sides.

−x  

2

=8.41−12.7

Subtract 12.7 from 8.41 to get −4.29.

−x  

2

=−4.29

Divide both sides by −1.

x  

2

=  

−1

−4.29

​  

Expand  

−1

−4.29

​  

≈4.29 by multiplying both numerator and the denominator by 100.

x  

2

=  

−100

−429

​  

Fraction  

−100

−429

​  

≈4.29 can be simplified to  

100

429

​  

=4.29 by removing the negative sign from both the numerator and the denominator.

x  

2

=  

100

429

​  

Take the square root of both sides of the equation.

x=  

10

429

​  

​  

x=−  

10

429

​  

​  

Answer:

4.29 :)

Step-by-step explanation:

Answer:

removing 1 x-tile from each side.

Step-by-step explanation:

the question is asking to isolate x and the equation is 2x = x + 3.

to isolate x subtract each side by an x-tile

Answer:

The answer is A

Step-by-step explanation:

Answer:

me too but I'm not sure

Answer:

E(8,8) F(6,10) G(2,8) H(6,6)

Step-by-step explanation:

When rotating point 180° about the origin, all signs must change

ex) A(x,y) becomes A(-x,-y)

Answer:

-2+2= 0

Step-by-step explanation:

he's incorrect bc 2 is greater than 0. so the sum is less than one of the numbers in the equation

Answer:

If I'm correct it should be the second one

Step-by-step explanation:

llllllllllllllllllllllllllllllll

Answer:

which out of those you want answer for? happy to help

Step-by-step explanation:

Answer:

95% confidence interval = ( 28.9485, 40.1515 )

Step-by-step explanation:

sample size( n ) = 52

mean value ( x )= 34.55

std ( б ) = 20.12

H0 : u ≤ 30

Ha : u > 30 ( claim )

95% confidence interval for mean SPF level ( df = 51 )

= mean value ±  [tex](2.0076 + \frac{20.12}{\sqrt{52} } )[/tex]

95% confidence interval = ( 28.9485, 40.1515 )

we cannot reject H0

Answer: quadrant 3

Step-by-step explanation:

Answer: 6

Step-by-step explanation:

Answer:

42/7 or 6

Step-by-step explanation:

First, let's start off with the top part. 6^2 is 6 times 6, which is 36. 36 + 6 = 42. Now for the bottom part, 4^2 is 4 times 4, which is 16. 3^2 is 9. 16-9=7. 42/7 is the fraction form and if you want it simplified, then it is 6.

Hope that helps!

Answer:

b

Step-by-step explanation:

Answer:

A: 7:5 B: 12:5

Step-by-step explanation:

By doing simple subtraction you can find that the remaining flowers are daisies, the rest is self explanatory. Hope this helps!

Answer:

Each peice is 1 1/3 (4/3) long.

Step by step explanation:

10 2/3 divided by 8

10 2/3 = 32/3

32/3 divided by 8 = 32/3 x 1/8

32 times 1 = 32, 3 times 8 = 24 =32/24

32/24 in simplest form is 4/3 (aka 1 1/3)

Hope this helped! :)

Answer:

oh heyyy this is the same problem ok im gonna answer it the same way lol

Answer:

18,008,000 that's how you write it

Answer:

19008000

Step-by-step explanation:

hope it helps :)

Answer:

6/18 bags

Step-by-step explanation:

Answer:

8/12 OF A BAG IS THE RIGHT ANSWER

Answer:

The proposed rule correctly works.

Step-by-step explanation:

As the original triangle has the vertices with the coordinates

From the given diagram, the image of the triangle has the vertices

A'(10, 4)

B'(5, 4)

C'(5, 0)

According to the proposed rule, the image should have the following vertices.

(x,y) ➝ (y+4, -x-2)

A(-6, 6) ➝ (6+4, -(-6)-2) = A'(10, 4)

B(-6, 1) ➝ (1+4, -(-6)-2) = B'(5, 4)

C(-2, 1) ➝ (1+4, -(-2)-2) = C'(5, 0)

So, the coordinates of the image of the triangle are correctly drawn as per the proposed rule.

Therefore, the proposed rule correctly works.

Answer:

Step-by-step explanation:

-6 ≥ x

-2 ≤ x

I don't think you can combine this into one statement.

Your line looks something like

<---------------O                 O------------------------->

                  -6                 -2

Shade in the 2 Os. The shaded in Os  are included in the way the line looks.          

Answer:

Heres ur answer m=-4

Answer:

y = -2x + 12

Step-by-step explanation:

First, find the slope using rise over run (y2 - y1) / (x2 - x1)

Plug in the points:

(y2 - y1) / (x2 - x1)

(-12 - 18) / (12 + 3)

-30 / 15

= -2

Then, plug this and a point into y = mx + b and solve for b:

y = mx + b

-12 = -2(12) + b

-12 = -24 + b

12 = b

Then, plug in the slope and b into y = mx + b

y = -2x + 12 is the equation of the line

Hope this helps :p

<3

Answer:

(2,-1)

4 over 3 on a gragh divided by the demonitar of the higher number equaled to 5 will get u (2,-1)

Step-by-step explanation:

Hopefully this helped, have a great day! :)

Answer:

try to sreach this on brainly the question and see if someone already answer it

Step-by-step explanation:

Answer:

Input 0 and Output -6

Step-by-step explanation:

The reason why is that we know that -4 has a output of -18 which -3 has a output of -15 meaning each time x increases by 1 the output increases by 3. 1:3 ratio basically so since we know this the starting value should be

y=0+3x

I am just not sure if I did this properly. My professor hasn't really gone over when to use the range equation but I would assume range would equal the distance traveled therefore can be used for this problem. If not the how would I go about solving this? I did 1/6*9.8=1.63 for g on the moon Then used R=(Vi^2sin2theta)/g so on the moon R=((28^2)sin2*35)/1.63=452m

Please Brainliest..? thx

Answer:

26m

Step-by-step explanation:

Answer:

4 - 14i

Step-by-step explanation:

The answer is already in it standard form.

Hope this helps!

Answer:

y = 2x - 3

Step-by-step explanation:

Slope = 2

Y-intercept = -3