Kareem works mowing lawns and babysitting. He earns $8.60 an hour for mowing and $8.10 an hour for babysitting. How much will he earn for 7 hours of mowing and 5 hours of babysitting?

Answer:

median =19

mean=26.8

Step-by-step explanation:

-MEDIAN is the middle number when arranged in ascending order

-MEAN is the sum (total) of all values set devided by the number of values on the list

If the standard deviation of a population is 4.1. The margin of error is 16.81.

Given:

Standard deviation=4.1

Hence:

Variance will be the standard deviation  square

Variance=Standard deviation²=4.1×4.1

Variance=Standard deviation²=16.81

So,

Margin of error=16.81

Therefore the margin of error is 16.81.

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Answer:

What exactly do you want me to do? Multiply each binomial together? Add them together? If you clarify, I'd be more than happy to help you.

Step-by-step explanation:

Answer:

first discount for Q7 is $54.3915

the next discount is $48.95235

for Q8 is

Step-by-step explanation:

you are a very nice person for helping your mom. good luck for this!

ok let's work on question 7 first.

$63.99 is the cost of a skateboard.

  15% of 63.99 = 10% + 5%

  10% of 63.99 = 6.399          (move the decimal one place to the left)

   5% of 63.99 = 1/2 of 6.399

     1/2 x 6.399 = 3.1995

6.399 + 3.1995 = 9.5985

ok, so that's 15% of 63.99

now we need to take away 9.5985 from 63.99

63.99 - 9.5985 = 54.3915

the discount price of the skateboard is $54.3915

a further 10% is $5.43915

so take off that from the discount,

54.3915 - 5.43915 = 48.95235

the final price is $48.95235

QUESTION 8

         shop A = 6.95 x 40

     6.95 x 40 = $278

         shop B = 20% of 325

20/100 * 325 = 65

      325 - 65 = 260

therefore, shop B is cheaper.

hope this helped, good luck!

Answer:

Jacob has a part-time job at an ice skating rink selling hot cocoa. He decided to plot the number of hot cocoas he sold relative to the day's high temperature and then draw the line of best fit. Based on the line of best fit, what would you predict the day’s high temperature to be if Jacob sold 89 hot cocoas?

Step-by-step explanation:

Parker would sell 93 hot cocoas.

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the

change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

Given:

From the Curve we can write

slope = (101 - 105) / (5- 0)

slope = -4/5

so, the equation to represent the situation is

= -4/5t + 105

= -0.8t + 105

Now, if t= 15 then

s= -12 + 105

s = 93

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Answer:

It equals 132.25. You can use a calculator.

The correct answer is 132.25

Answer:

Step-by-step explanation:

they are opposite angles, so we put them equal to each other.

25.

6a+10= 130

6a=120    a=20   so now we plug it in 6(20) +10= 130

26.   4a-4=2a+30

      2a=34      a=17   sso now we plug in 4(17)-4= 64    2(17)+30= 64

27.    6y+1=4y+9                             2x-5=x+7

          2y=8                                      x=2

         y=4

now plug in 6(4)+1=25     4(4)+9=25     2(2)-5= -1     (2)+7=9

Answer:

Step-by-step explanation:

a² + 12² =25²

a² +144 = 625

a² = 481

a= 21.93

Answer:

fff

Step-by-step explanation:

ffff

Answer: false

Step-by-step explanation:

Answer:

Step-by-step explanation:

Each new value is 1 plus twice the previous value.

First value is 1.  Then,

 1 plus twice 1 = 3, the second value.

Second value is 3

 1 plus twice 3 = 7, so

Third value is 7

and so on (this is merely a check)

An arithmetic sequence is a sequence in which the difference between any two terms of the sequence is the same or equal. The nth of the series will be aₙ =1 + (n-1)2.

An arithmetic sequence is a sequence in which the difference between any two terms of the sequence is the same or equal.

aₙ = a₁ + (n-1)d

where,

aₙ is the nth term of the sequence,

a₁ is the first term of the sequence,

r is a common difference between every two terms.

The arithmetic sequence given is 1,3,7,15,…, therefore, the common difference between the series and the value of the first term can be written as,

d = 3-1 = 2

a₁ =1

the nth term of the series can be defined as the,

aₙ = a₁ + (n-1)d

aₙ =1 + (n-1)2

Hence, the nth of the series will be aₙ =1 + (n-1)2.

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Answer:

C. X = 4

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

Substitute these numbers in the expression.

You get-

4+ (7-5)^4

Now use PEMDAS.

Solve the parentheses first.

4+2^4.

Solve 2^4.

4+16

Add.

20.

Hope this helps! :)

Answer:

The answer is 20

Step-by-step explanation:

Now, Substitute

4 + (m – n)⁴

4 + (7 – 5)⁴

4 + (2)⁴

4 + 16 = 20

Thus, The value of the expression is 20

-TheUnknownScientist 72

Answer:19.625in is the answer

Answer:

C

Step-by-step explanation:

All numbers in scientific notation or standard form are written in the form m × 10n, where m is a number between 1 and 10 ( 1 ≤ |m| < 10 ) and the exponent n is a positive or negative integer.

Therefore, the decimal number 0.00067 written in scientific notation is 6.7 × 10-4.

Answer:

x=7.5

Step-by-step explanation:

Answer:

9 wins

Step-by-step explanation:

[tex]\frac{1}{3} =\frac{x}{27} \\\\3x=27\\x=9[/tex]

They'd have 9 wins after 27 games.

Answer:

relationship between perpendicular and hypotenuse is given by sin angle

sin60=p/h

√3/2=2/x

x=4/√3=2.31

Answer:

36

Step-by-step explanation:

multiply 16 by the opposite, which is 9/4.

Answer: The probability of Sarah picking a blue marble on 2 consecutive draws without replacement = 15.8%

Step-by-step explanation:

Given: Sarah has a bag of 100 marbles. 40 are blue, 40 are green, and 20 are purple.

The probability of Sarah picking a blue marble on 2 consecutive draws without replacement = [tex]\dfrac{40}{100}\times\dfrac{39}{99}=0.157575757576\approx15.8\%[/tex]

Hence, the probability of Sarah picking a blue marble on 2 consecutive draws without replacement = 15.8%

Answer:

2.3 : 0.83

Step-by-step explanation:

Simplify

Answer:

15

Step-by-step explanation:

a²+b²=c²

12²+9²= 144+81=225²

√225 = 15

Answer:

33.24m

Step-by-step explanation:

c²=32²+9²

c²=1105

c=33.24m

Answer:

It is an Acute-Angled Triangle.

Step-by-step explanation:

if it helps don't forget to like and mark me sister

Answer:

Acute triangle to be specific it is an Acute scalene triangle

Step-by-step explanation:

Answer:

Strong association between X and Y.

Step-by-step explanation:

I got the question right on the Algebra Nation

Complete question :

The Hiking Club is taking another trip. The hike leader's watch shows that they gained 296 feet in altitude from their starting position. Their altitude is now 285 feet, but there is no record of their starting altitude. Write and solve an equation to represent this situation and find their starting altitude.

Answer:

Expression :

285 = x + 296

Starting altitude, x = - 11 feets

Step-by-step explanation:

Let starting position = x

Altitude gained = 296 feets

Final attitude = 285 feets

The starting altitude could be obtained by the expression :

Final altitude = starting altitude + Altitude gained

285 = x + 296

Solve for x, to obtain starting altitude ;

285 - 296 = x + 296 - 296

-11 = x

Hence, starting altitude is - 11 feets

Answer:

106

Step-by-step explanation:

Answer:

B they equations i are múltiple

Answer:

So the biggest perfect square would be 4^2=16 and you get 6 left over. 16. 16x6=96 and 16 is the highest number that is a perfect square or in other words 16 is the highest number that goes into 96

Step-by-step explanation:

Answer:

there is no largest perfect square of 96

Step-by-step explanation:

just do its common factor