Someone please help!! 50 points! I have no idea how to do these so If someone could please give the steps and answer it would be greatly appreciated!

Answer:

area = 2106

perimeter = 210

Step-by-step explanation:

area = length x width

(for this specific problem and since the shape is a rectangle)

perimeter = length + length + width + width

Answer:

A = 2106 yd^2 P = 210 yd

Step-by-step explanation:

PART A:

A = l x w

A = 78 x 27 = 2106 yd^2

P = l + w + l + w = 78 + 27 + 78 + 27 = 210 yd

PART B:

area

PART C:

perimeter

Answer:

900x0  

Step-by-step explanation:

>:)

Answer:

100x9, 90x10, 22.5x40

Step-by-step explanation:

There is a lot more but you got to look it up

The age of the youngest child will be 11 years old.

The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.

The oldest child in a family of four children is twice as old as the youngest.

Let x be the age of the youngest child and y be the age of the oldest child. Then the equation is given as,

y = 2x   ...1

The two middle children are 12 and 16 years old. If the average age of the children is 15.25. Then the equation is given as,

(x + 12 + 16 + y) / 4 = 15.25

x + y = 33  ...2

From equations 1 and 2, then we have

x + 2x = 33

3x = 33

x = 11

The age of the youngest child will be 11 years old.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ2

Answer:

25.95 quarters which is about 6.5 years

Step-by-step explanation:

Answer:

Bill has $21.

Step-by-step explanation:

There's $135. 84/4=21. At the same time, 21+9=30. 30+21+84=135.

Answer:

My answer is that x = 4.4

Step-by-step explanation:

The answer to the equation is 6, so the false one is the last one. All the other ones are true.

Answer:

The correct answer is given by option A.

Step-by-step explanation:

A function is said to be increasing for intervals of x in which the values of y are increasing, that is, it trends upwards, and decreasing for intervals of x in which the values of y are decreasing, that is, it trends downwards.

In this question:

It trends upwards from the start, at negative infinity, until 0.

It trends downwards from 0, until the end, at positive infinity.

So the correct answer is given by option A.

Answer:

6:21

Step-by-step explanation:

2 was multiplied by 3, so 7 should also be multiplied by 3.  The answer is 6:21.  Hope this helps!  

Answer:

0.4

Step-by-step explanation:

Answer:

Option (2) and Option (6)

Step-by-step explanation:

Expression representing the error can be given by,

Expected value = Original value ± percentage error

If original value of the ice cream filled in the container = 64 ounce

Percentage error to fill the ice cream in each container = 1.5%

So net error = ± 1.5% of 64

                    = [tex]64(\frac{1.5}{100})[/tex] ounce

                     = 64(0.015) ounce

Therefore, expression that can show the maximum maximum amount of ice cream in the container will be

= 64 + 64(0.015) Option (6)

= 64(1 + 0.015)

= 64(1.015) Option (2)

Therefore, Option (2) and Option (6) are the correct options.

Answer:

0.71 = 71% probability that she or he used the lab on a regular basis.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Student got an A

Event B: Used the lab on a regular basis.

Probability of an student getting an A:

55% of 40%(go to the lab on a regular basis).

15% of 100 - 40 = 60%(do not go to the lab on a regular basis).

So

[tex]P(A) = 0.55*0.4 + 0.15*0.6 = 0.31[/tex]

Probability of getting an A and using the lab on a regular basis:

55% of 40%, so:

[tex]P(A \cap B) = 0.55*0.4 = 0.22[/tex]

Probability that she or he used the lab on a regular basis.

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.22}{0.31} = 0.71[/tex]

0.71 = 71% probability that she or he used the lab on a regular basis.

Answer:

i really don’t know

Step-by-step explanation:

that’s an interesting question

Answer:

i dont know but can we do rp on pad.let?

Step-by-step explanation:

Answer:

Vertical and thats it

Answer: they contain valuable items and are very interesting

Step-by-step explanation:

Answer:

A parallelogram with different side lengths.

Step-by-step explanation:

If we consider a parallelogram (not rectangle, not square, and not a rhombus), then its diagonals will bisect each other but would be not congruent or perpendicular. See attached image.

Answer:

16/225

Step-by-step explanation:

Ratio of the area of similar figures = ratio of the square of any of their corresponding side lengths

Thus:

Area of red triangle : area of blue triangle = square of side length of red triangle : square of side length of blue triangle

Area of red : area of blue = 4²/15²

= 16/225

Answer:

-24f + 30

Step-by-step explanation:

Use the distributive property.

Answer:

Five plus seven equals x

Step-by-step explanation:

Answer:

Five plus seven equals x

Step-by-step explanation:

Answer:

26 cm

Step-by-step explanation:

To find the perimeter with the side lengths, you can use this formula: 2(L+W) because it's the measure of the distance around the rectangle. So,

2(8.5+4.5)

2(13)=26

Answer:26

Step-by-step explanation:

Answer:

A - 6 hours and 40 minutes

B - 12 hours

Step-by-step explanation:

Candle A - After 6 hours: the candle will be 1 inch tall, because 6 times 1.5 = 9. You need an extra 40 minutes for the candle to burn completely, because 10/1.5 = 6 and 2/3

Candle B - After 12 hours, the candle will be completely burned, because 6/.5 = 12.

Equation - Initial height/inches burned per hour = time it takes for cnadle to burn down completely

Answer:

Step-by-step explanation:

58 x 12 = 696    696 + 129 = $825 for a year

they are 9 months in

The equation of piecewise function is [tex]y=-\frac{1}{2} x+2[/tex]

From given graph of function, we have to write function for the domain of [tex]-2\leq x\leq 2[/tex].

It is observed that, in the particular domain graph of function is a straight line, which passes through the points [tex](-2,3)[/tex] and [tex](2,1)[/tex].

Equation of line is,

               [tex]y-3=\frac{1-3}{2+2}(x+2) \\\\y-3=-\frac{1}{2} (x+2)\\\\y=-\frac{1}{2} x-1+3\\\\y=-\frac{1}{2} x+2[/tex]

The equation of piecewise function is [tex]y=-\frac{1}{2} x+2[/tex]

Learn more about the equation of function here:

https://brainly.com/question/25841119

Answer:

The probability of getting someone in the 18-21 age bracket or someone who agreed to respond [tex]= 0.365[/tex]

Step-by-step explanation:

The counts are as follows  

Age Group  No of people contacted No of refusals      Total  

18-21               88                                  8                       96

22-29              240                                  42                       282

Total              328                                  50                       378

The probability of getting some one in the age bracket of 18-21 or some one who refused to respond is

[tex]= \frac{96}{378} + \frac{50}{378} - \frac{8}{378} \\= \frac{96+50-8}{378} \\= \frac{138}{378} \\= 0.365[/tex]