help me
please helpe​

Answer:

The circle has an area of about 1385 square mm.

Step-by-step explanation:

Let's recall that circles have an area that can be found with the following formula:

[tex]A=\pi r^{2}[/tex]

where r is the radius of the circle.

Now, focus your eyes on the circle. We are shown that the diameter of this circle is 42 mm, but we only want the radius. Since the radius is half the diameter, the radius is 21 mm. Now, we can solve for the area of the circle.

[tex]A=\pi (21)^2\\A=441\pi \\A=1385.44236...[/tex]

So, to the nearest whole number, the area of the circle is 1385 square mm.

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The Value Of x Is 5.

Answer:

x = 5

Step-by-step explanation:

5x = 25

x = 25/5

x = 5

Hope it helps ⚜

Applying the expression for speed, we found that the time taken for the bucket to hit the bottom of the well is 15 seconds

Given Data

Speed = 2 meters per second

Distance = 30 meters

Time = ??

We know that the expression for the relationship between speed, distance and time is given as

Speed = Distance/Time

substituting we have

2 = 30/t

cross  multiplying

2t = 30

divide both sides by 2

t = 30/2

t = 15 seconds

Answer 15 seconds

Learn more about speed and distance here:

https://brainly.com/question/4931057

Step-by-step explanation:

[tex](x + y) {}^{2} - 1[/tex]

[tex](x + y - 1)(x + y + 1)[/tex]

Answer:

i think 66.5 miles per hour

Step-by-step explanation:

Answer:

205.295 miles divided by 3.12 hours = 65.8 miles per hour

Step-by-step explanation:

Answer:

Yellow

Step-by-step explanation:

y= -f(x) reflects over the x-axis which is what this graph shows. When you complete the factor of

-(x+3)(x-1)

Use the FOIL method to solve

(First, Outer, Inner, last) This will equal to the

y= -x^2-2x+3 as shown in the yellow box

Answer:

The answer is below, y = 2x - 2

Step-by-step explanation:

2x - y > 2

-2x       -2x

-y > 2 - 2x

/-1     / -1

y < -2 + 2x, also written as y < 2x - 2

This is where we got our answer: y = 2x - 2

*There is an invisible 1 before the variable (y)*

*When dividing an inequality with a negative number, the sign flips (from < to >, or from ≤ to ≥)*

I'm going to share a little tip:

< or ≤ = below the line

> or ≥ = above the line

Hope that helps

Answer:

3 days

Step-by-step explanation:

Kali runs 10 laps around a track each day, and each lap is 400 meters. So, the first step would be:

10 • 400 = 4,000

That means Kali runs 4,000 meters each day.

Now, there are 1,000 meters in 1 kilometer. This means he runs 4 kilometers each day, and we're trying to get to 12 kilometers.

The final step is to divide. 12/4 = 3

So, it would take 3 days for him to run a total of 12 kilometers.

Answer:

Kali will run 3 days

Step-by-step explanation: took quiz

Answer:

0.8x - y = -1.8, x-int = 2.25, y-int = -1.8

Step-by-step explanation:

(-4, -5) and (1, -1)

slope = [(-5) - (-1)] / [(-4) - 1] = -4 / -5 = 4/5 = 0.8

Let y = 0.8 x + b

Sub (-4, -5) into it

-5 = 0.8 * (-4) + b = -3.2 + b

b = -5 + 3.2 = -1.8

The equation is y = 0.8x - 1.8

standard form: 0.8x - y = -1.8

let y = 0, 0.8x - 1.8 = 0

x = 1.8/0.8 = 2.25   (x-intercept)

let x = 0, y = -1.8    (y-intercept)

Answer:

x = 37

Step-by-step explanation:

74 and 2x are vertical angles so they are equal.

74 = 2x

x = 37

Answer:

18

Step-by-step explanation:

divide 22.50 by 1.25 to get the number of rides.

The slope of a linear regression is the rate of change of the line of the best fit

The linear regression is given as:

y = -1.62x + 18

Where

Using the above representations, the slope means that the wait time per staff is 1.62 minutes

Also, the slope value is realistic because time can be measured in decimals

Read more about linear regressions at:

brainly.com/question/25987747

Answer:

4 + 7 = 11

4 + 7(3) = 25

4 + 21 = 25

first number is 4, second is 7

I hope this helped!

Step-by-step explanation:

Answer:

y = 2x

the formula for linear equations are y = mx+c,

where m is the gradient,

and c is the y-intercept

to find m (the gradient):

1. pick to points on the graph (eg. -2,-4 and 2,4)

2 substitute the values into the formula for gradient y2-y1/x2-x1.

m = y2-y1/x1-x2

= -4 -4/-2-2

= -8/-4

= 2

to find c (y-intercept):

- the y-intercept is where the graph cuts the y axis

- in this graph, the y-intercept is 0

hence,

c = 0

substitute m = 2 and c = 0 to y = mx+c,

y = 2x + 0

y = 2x

hence, the equation that best represents the relationship shown in the graph is y = 2x.

Step-by-step explanation:

210

.................

Answer:

a: 3/10 + 3/10 =6/10

b: 3/10 + 4/10 = 7/10

c:

Answer:

Step-by-step explanation:

4x^2 -3x  for x = -4

4(-4)^2 - 3(-4)

4 (16) - (-12)

64 + 12

76

Hope this helps!

Answer:

76

Step-by-step explanation:

It is easier to do x square first which gives you 16

Then do 16 times 4 which is 64

Then do x times -3 which is -12

Then do the sum 64-(-12)

which gives you the answer of 76

Hope This Helps

Answer:I believe its this

Step-by-step explanation:

you can see the step by step in the attached image as well as the result

Rearranging the question,

SOLVE FOR Y IN TERMS OF X:

x - 2y = 4

Move 2y to the other side

x=2y+4

Move 4 to the other side and flip the equation

2y=x-4

Divide both sides by two:

-Hunter

Answer:

y = 1/2x - 2

(You need to rearrange x-2y=4)

Answer:

Step-by-step explanation:

Total weight of apples:

The weight of fresh apples:

Total Weight of Apples

[tex] \frac{30}{4}=7.5pounds [/tex]

Weight of Fresh Apples

[tex]7.5 - 3 = 3.5pounds[/tex]

Hope it helps youuuu :)

Answer:

65 + .70(20)= 79 dollars

Step-by-step explanation:

65+0.70miles = Fee

this means she can drive 19 miles and she will still be below the price company A but as soon as she drives 20 miles company A and B will cost the same

please mark brainliest if u can i need 5 more :)

Given :

To Find :-

Solution :-

From the given figure we can see that the prism is made up of

And the base and height of each triangle is ,

And the dimensions of each rectangle is ,

Therefore , the Total surface area is ,

→ TSA = 2( area of each ∆) +3(area of each rectangle)

→ TSA = 2 ( 1/2 * 7 * 5)in.² + 3(13*6.1) in.²

→ TSA = 2 * 35/2 in.² + 3* 79.3 in.²

→ TSA = 35 in.² + 237.9 in.²

→ TSA = 272.9 ≈ 273 in.²

Hence the TSA of prism is 273 in.² .

I hope this helps.

Answer:

a) 52

Step-by-step

49+52=101

which makes the equation true

101>100

51 will make it equal

53 and 54 its more than 52 that meants it wont be  the smallest whole number

Answer:

x - 6 = 0

Step-by-step explanation:

x - 6 = ?

If x = 6, then

6 - 6 = 0

Answer:

12 m

Step-by-step explanation:

If 1 m = 3.3 feet, then,

1 feet = 1/3.3 m

So,

39.6 feet

= 39.6/3.3

Multiplying by 10....

= 396/33

= 12 m

Hope it helps ⚜

Answer:

See below.

Step-by-step explanation:

(4x^2-3x^3)+(2x^2+4x^3)

6x^2-x^3

(-8x^2-2x+7)+(x^2-3x+2)

-7x^2-5x+9

-hope it helps