please help (20 points + brainlest)

Answer:

B.  -12.4 + 20.6s.

Step-by-step explanation:

Perimeter = 2*length + 2 * width

= 2(3.1s - 1.6) + 2(7.2s - 4.6)

= 6.2s + 14.4s - 3.2 - 9.2

= 20.6s - 12.4

= -12.4 + 20.6s.

[tex]\boxed{-12+20.6s}[/tex]

To find the perimeter of a shape, we add length + width + length + width (or length * 2 + width *2). So we would multiply the width, (3.1s - 1.6), and the length, (7.2s - 4.6), by 2, and then add them together to find the perimeter.

2(3.1s - 1.6) + 2(7.2s - 4.6)

This is equal to:

6.2s + 14.4s - 3.2 - 9.2

Simplified, this is equal to:

20.6s - 12.4

(We have to switch it around, but this answer is equal to option b.)

-12.4 + 20.6s

Tip: To simplify an equation, you add like terms. Like terms are numbers that have the same variables or exponents; for example, -4 and 3 are like terms, as well as 5^2 and 8^2. (Keep in mind, the variables and/or exponents have to be the same if you combine the like terms. Numbers with different variables and exponents can never be combined!)

Answer:

Step-by-step explanation:

A) The angular velocity is the ratio of angular distance to time:

  ω = 1 revolution / (0.25 s) = (2π radians)/(0.25 s)

  ω = 8π radians/second

__

B) The arc length is ...

  s = rθ = rωt

  s = (35 cm)(8π rad/s)(60 s) = 16,800π cm

  s ≈ 52779 cm = 527.79 m

The wheel travels about 527.8 meters in one minute.

Answer:

i think it will be helpful for you

Answer:

-20 x^6

Step-by-step explanation:

(4x)(-x^2)(5x^3)

Multiply the numbers

4*-1 *5 = -20

Add the exponents

x^1 * x^2 * x^3

x^(1+2+3)

x^6

Multiply back together

-20 x^6

Answer:

The answer is

Step-by-step explanation:

(4x )( - x²)(5x³)

Expand the terms

That's

-4x³( 5x³)

Next multiply the numbers

That's

- 20( x³)(x³)

Using the rules of indices multiply the x's in the expression

That's

So we have

We have the final answer as

Hope this helps you

Answer:

A

Step-by-step explanation:

So we have the function:

[tex]f(x)=y=\sqrt[3]{x-2}+8[/tex]

To find the inverse of the function, we can flip x and y and then solve for y. Therefore:

[tex]x=\sqrt[3]{y-2}+8[/tex]

Solve for y to find our inverse.

Subtract 8 from both sides:

[tex]x-8=\sqrt[3]{y-2}[/tex]

Cube each side. The right cancels:

[tex](x-8)^3=y-2[/tex]

Add 2 to both sides:

[tex]y=(x-8)^3+2[/tex]

Therefore, our inverse is:

[tex]f^{-1}(x)=(x-8)^3+2[/tex]

The answer is A

Answer:

4/3

Step-by-step explanation:

Slope is rise/run so find two points and find the rise/run. (0,-1) and (4,2) so the slope would be 4/3

Answer:

5/6 is:

Rational

Step-by-step explanation:

Natural-All positive integers (5/6 does not apply)

Whole-All positive integers and zero (5/6 does not apply)

Integer- All positive and negative whole numbers and zero (5/6 does not apply)

Rational-All integers, fractions, and non-repeating decimals (5/6 applies)

Irrational-A real numbers that are NOT rational (5/6 does not apply)

Answer:

1.c 1875cm squared.

Step-by-step explanation:

if the area of the park is the area if pool 3 times ... which is 625

so 625×3

=1875cm squared

Answer:

B, C, B

Step-by-step explanation:

24

area of A'B'C'D' = 3 × ABCD = 3 × 625 = 1875 m²

Thus area of park = 1875 - 625 = 1250 m² → B

25

A tangent has only one point of contact with the circle. Thus does not pass through the centre.

26

The inscribed angle subtended by a semi- circle is 90° not 180°

Answer:

Diagram B

Step-by-step explanation:

This is because the line only goes through two points and many are dispered from the line, however diagram A and C have points fairly close to them

Visually inspecting the three scatterplots, the line of best fit does not accurately fit the points on the second graph. Hence, line of best fit should not have been drawn for the second graph as the relationship isn't linear.

The line of best fit minimizes the sum of the square of the mean distance between each point. Hence, the distance between the line and the best fit line should be as small as possible.

However, the second graph isn't linear, hence , a linear line cannot model the relationship.

Learn more : https://brainly.com/question/23105648

Answer:

When a number can be divided up exactly and is not a prime number , it is a Composite Number.

The first few composite numbers are 4, 6, 8, 9, 10, 12, 14, 15, 16,........

Hope it helps.

So far, segment CD is the same length as AB. So we can say AB = CD.

Let's keep going

Segment CE is composed of CD and DE, both of which are equal to AB. In other words, AB = CD = DE. Because CD = DE, and the two segments add up to CE, this must mean that CE is twice as long as CD. Therefore, CE is twice as long as AB.

See the diagram below for a visual summary.

Answer:

yes, it equals 44

Step-by-step explanation:

16-(-)24+4=44

Answer:

it is 44

Step-by-step explanation:

2 minus's right by each other turn into a plus sign.

Answer:

-8ab -24asquared-16a

Thats gonna get u ur answer

Step-by-step explanation:

Answer:

-8ab -24a^2 -16a

simplfied form

-8a(b+3a+4)

Step-by-step explanation:

Irma- 17 and Jeremiah - 29

Answer:

8 Feet below the surface

Step-by-step explanation:

If the salmon were initially 5 feet below the surface, and then travelled down an additional 3 feet from the initial 5, then the new position would be 8 feet down relative to the surface.

You can write this as -5 + -3 = -8, assuming that 0 represents surface level.

Cheers.

The distance of salmon from the surface of the water is 8 feet.

Calculate the answer using a math operator is referred to as a mathematical operation.

Basic mathematical operations are addition, multiplication, subtraction and division.

Given that,

The distance of school of salmon for the surface of the river = 5 feet.

Since, to escape a hungry bear, the school of salmon went down to 3 feet.

The position of the salmon to the surface = 5 + 3 = 8 feet.

The required distance of school of salmon from the surface of water is 8 feet.

To learn more about Mathematical operations on :

https://brainly.com/question/22469627

#SPJ2

Answer:

No

Step-by-step explanation:

Is [tex](x-4)[/tex] equivalent to [tex](x-4)2[/tex] ?

So let's solve [tex](x-4)[/tex] .

Since there are no like terms, the answer would be

[tex]x-4[/tex]

Let's move on to [tex](x-4)2[/tex]

[tex](x+-4)+(2)[/tex]

Now let's separate.

[tex](x)(2)+(-4)(2)[/tex]

This equals

[tex]2x-8[/tex]

Both answer were not the same so therefore they are not equivalent.

Hope this Helps!

Answer:

26

Step-by-step explanation:

The mean of a set of number is the average the set of number, it is the ratio of the total sum of the terms to the sum of terms.

The standard deviation is the variation of a set of numbers to their mean. A low standard deviation means the value are close to the mean and a high standard deviation means the values are far from the mean. The standard deviation is given as:

[tex]\sigma=\sqrt{\frac{\Sigma (x_i-\mu)^2}{n} }\\ \\\mu=mean,n=number\ of\ terms, \sigma=standard\ deviation[/tex]

Given the numbers:

86, 81, 87, 82. mean = μ = 84

[tex]\Sigma(x_i-\mu)^2=(86-84)^2+(81-84)^2+(87-84)^2+(82-84)^2=4+9+9+4=26[/tex]

Sum of squared deviations = 26

The sum of the squared deviations of the scores from the mean is 26.

-----------------------

Thus:

[tex]S_{ds} = (86-84)^2 + (81-84)^2 + (87-84)^2 + (82-84)^2 = 4 + 9 + 9 + 4 = 26[/tex]

The sum of the squared deviations of the scores from the mean is 26.

A similar problem is given at https://brainly.com/question/17327780

Answer:

1. 17.75 per ticket

2. 1.64 per card

3. 0.08 per sticker

4. 0.07 per apple

5. 1.25 per muffin

6. 0.65 per lolipop

7. 1.55 per battery

8. 0.80 per pencils

9. 12.40 per book

10. 1.19 per stamp

11. 0.60 per egg

12. 0.57 per candy bar

Step-by-step explanation:

price divided by ammount

Answer:

0.00588235294

Step-by-step explanation:

0.00588235294

Answer:

0.00588235294

Step-by-step explanation:

0.00588235294

0.00588235294

0.00588235294

0.00588235294

0.00588235294

0.00588235294

0.00588235294

0.00588235294

Answer:

A bearing is an angle, measured clockwise from the north direction. Below, the bearing of B from A is 025 degrees (note 3 figures are always given). The bearing of A from B is 205 degrees.

Answer:

0

Step-by-step explanation:

-3d + 8d - 5d

Combine like terms

5d -5d

0

Answer:

[tex]\Huge \boxed{0}[/tex]

Step-by-step explanation:

[tex]-3d + 8d - 5d[/tex]

Combining like terms:

[tex]\Rightarrow 5d- 5d[/tex]

[tex]\Rightarrow 0[/tex]

Answer:

See below.

Step-by-step explanation:

So we have the expression:

[tex]\sqrt{125a^2b^2}[/tex]

This is the same as:

[tex]=\sqrt{(5ab)^2\cdot5}[/tex]

Expand:

[tex]=\sqrt{(5ab)^2}\cdot\sqrt5[/tex]

The left term cancels:

[tex]=5|ab|\sqrt5[/tex]

Note that we need the absolute value bars because if a and/or b was negative in the original equation, they will turn positive. Thus, to keep things consistent, we must use the absolute value to make sure that a and b stays negative :)

Answer:

there is  google!

Step-by-step explanation:

Answer: 135, 45, and 135 are the three other angles

==================================================

Explanation:

For a parallelogram, we'll have opposite angles with the same measure. So if one angle is 45 degrees, then the opposite angle is also 45 degrees. The other two angles are 180-45 = 135 degrees each. Adjacent angles in a parallelogram add to 180 degrees.

Answer: -17

Step-by-step explanation:

Answer:

The number must be between 80 and 83.666002653408

Step-by-step explanation:

The square root of 6400 is 80 and the square root of 7000 is 83.666002653408 so it would be between those numbers.

Answer:

1,350,001 shares

Step-by-step explanation:

Barnaby corporation issued 2,700,00 shares of stock to its respective shareholders

A shareholder is required to own more than half of the share of the stock of a corporation inorder to have most of it.

This implies that the shareholder must have 50% + 1 inorder to attain the majority shares

Therefore, the number of shares that must by owned by a shareholder to have majority of the shares can be calculated as follows

= 50/100 × 2,700,000

= 0.5×2,700,000

= 1,350,000+1

= 1,350,001 shares

x = 8

cos60° = x/16

1/2 = x/16

2x = 16

x = 16 : 2

x = 8

Answer:

[tex]\Huge \boxed{x=8}[/tex]

Step-by-step explanation:

[tex]\sf \displaystyle cos(60\° ) = \frac{x}{16}[/tex]

Multiplying both sides by 16.

[tex]\sf \displaystyle 16 \cdot cos(60\° )= \frac{x}{16} \cdot 16[/tex]

Simplifying the equation.

[tex]\sf \displaystyle 16 \cdot \frac{1}{2} = x[/tex]

[tex]\sf 8=x[/tex]