question 8 i mark as brainliest ​

Answer:

There's your answer!

Step-by-step explanation:

To do these just grab a calculator, or if you know your multiplication tables like I do, it's extremely easy, for example, when multiplying 60 and 80, you can do it in your head by just multiplying 6 and 8 to get 48, then add the two zeros on the end from 60 and 80, and you'll get 4800.

Answer:

Jim is 36. Anna is 27.

Step-by-step explanation:

63 -9 = 54

54 ÷ 2 = 27

27 + 9 = 36

Anna's age is 39 years old while Jim's age is 63-year old based on the formation of the equation for their age.

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

Let's say Anna's age is A while Jim's age is J.

As per the given,

Anna is 9 years less than twice Jim's age.

A = 2J - 9

And,

Sum A + J = 63

By solving both equations,

63 - J = 2J - 9

63 + 9 = 3J

J = 24 years old.

A = 2(24) - 9 = 39 years old.

Hence "Anna's age is 39 years old while Jim's age is 63-year old based on the formation of the equation for their age".

For more about the equation,

https://brainly.com/question/10413253

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Answer:

80

Step-by-step explanation:

8 pints in a gallon so then you multiply 8 x 10 and get 80

Answer:

80

Step-by-step explanation:

I hope this helps!

Answer:

84%

Step-by-step explanation:

The empirical rule states that 68% values are within 1 standard deviation of mean, i.e,

70

±

15

or from 55 to 85. Since normal distribution is symmetric, we must have (32%) outside this range, and 32/2=16% on the right if this range. Hence below 85 we have (100-16) % = 84%

Answer: 12x+6

Step-by-step explanation:

distributive property

Answer:

=12x + 6

Step-by-step explanation:

Answer:

4000 and 7000

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer: 2.5 or 3

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

For a compound inequality using the word "or" to be true, all you need is for one of the parts to be true.

-6 < 7 is true

-2 <= -2 is also true

Answer: True

Answer:

28.9

Step-by-step explanation:

tan (18) = 9.4/x times x

x times tan(18) = 9.4 / tan(18)

            tan(18)

        crosses out.

On a calculator do 9.4/

                             tan(18).

x = 28.9

Answer:

60 × 50 = 3000

7 × 50 = 350

60 × 4 = 240

7 × 4 = 28

3000 + 350 + 240 + 28 =3618

54 × 67 = 3618

Answer:

The null hypothesis                 [tex]H_o : \mu = 3.2 \ mg/dl[/tex]

The alternative hypothesis      [tex]H_a : \mu > 3.2 \ mg/dl[/tex]

Step-by-step explanation:

From the question we are told that

  The mean is  [tex]\mu = 3.2 \ mg/dl[/tex]

   The standard deviation is [tex]\sigma = 1.5 mg/dl[/tex]

   The sample size is  n = 25

    The sample mean is  [tex]\= x = 3.75 \ mg /dl[/tex]

Generally

   The null hypothesis is : That the mean of the  Arsenic blood concentrations in healthy individuals is [tex]\mu = 3.2 \ mg/dl[/tex]

i.e

The null hypothesis  [tex]H_o : \mu = 3.2 \ mg/dl[/tex]

    The alternative hypothesis is : That the mean of the  Arsenic blood concentrations in healthy individuals is greater than  [tex]\mu = 3.2 \ mg/dl[/tex]

The alternative hypothesis      [tex]H_a : \mu > 3.2 \ mg/dl[/tex]

Answer:

The median monthly sales goal is $30000

Step-by-step explanation:

Monthly Sales Goals (in thousands)

Stem Leaf

1 8 9

2 5 6 6 8

3 2 3 3 6 9

4 0

Data (Salary in thousands) : 18,19,25,26,26,28,32,33,33,36,39,40

n = 12(even)

[tex]Median = \frac{\frac{n}{2} \text{th term}+(\frac{n}{2}+1) \text{th term}}{2}[/tex]

[tex]Median = \frac{\frac{12}{2} \text{th term}+(\frac{12}{2}+1) \text{th term}}{2}\\Median = \frac{6 \text{th term}+7 \text{th term}}{2}\\Median = \frac{28+32}{2}\\Median = 30[/tex]

So, The median monthly sales goal is $30000

So, Option C is true

Answer:

The sample size is  [tex]n  = 3457 [/tex]

Step-by-step explanation:

From the we are told that

  The population proportion is  p =  0.90

  The margin of error is  E =  0.01  

From the question we are told the confidence level is  95% , hence the level of significance is    

      [tex]\alpha = (100 - 95 ) \%[/tex]

=>   [tex]\alpha = 0.05[/tex]

Generally the sample size is mathematically represented as

       [tex]n =[ \frac{ Z_{\frac{\alpha }{2} } }{E} ]^2 * p(1-p)[/tex]

=>  [tex]n  =[  \frac{ 1.96  }{0.01} ]^2 * 0.90(1-0.90)[/tex]

=>   [tex]n  = 3457 [/tex]

Answer:

9.9

Step-by-step explanation:

7^2+7^2= c^2

c= 9.9

Answer:

the correct answer is 10.9

Step-by-step explanation:

I got this answer right.

The answer is 24, hopes this helps!

Answer:

about 37.31 inches of space

Step-by-step explanation:

In this case, you would need to find the area of a cylinder with these dimensions.

Formula: 2πrh+2πr²

The r is the radius, and since the diameter in this situation would be 2.5, the radius would be 1.25.

2π(1.25)(3.5)+2π(1.25)²

2π4.375+2π1.5625

8.75π+3.125π

37.3064128

about 37.31 inches of space

Answer:

4,757 pounds

Step-by-step explanation:

One case book weighs 34 pounds

One case of magazines weigh 25 pounds

A book store wants to ship 73 cases of book 91 cases of magazines

Therefore the total weight of the shipment can be calculated as follows

= 34×73 + 25×91

= 2482 + 2275

= 4,757

Hence the total weight of the shipment is 4,757 pounds

Answer:

Each student is given 25 pencils

Step-by-step explanation:

There are 25 students and 625 pencils. How many is each student gonna receive?

625 pencils ÷ 25 students = 25 pencils are given to each student

Answer:

Each student is given 25!

Step-by-step explanation:

Hope this helps!  ^w^

Answer:

got u homie

Step-by-step explanation:

Answer:

l +c _> 12

Step-by-step explanation:

Answer:

The equation for a is [tex]a=-\frac{2000}{7}*(t-g)[/tex]

The altitute is 101,428.57 feet

Step-by-step explanation:

You know that the relationship between ground temperature and atmospheric  temperature can be described by the formula

t = -0.0035a +g

where:

Solving the equation for a:

-0.0035a +g=t

-0.0035a= t - g

[tex]a=\frac{t-g}{-0.0035}[/tex]

[tex]a=-\frac{2000}{7}*(t-g)[/tex]

The equation for a is [tex]a=-\frac{2000}{7}*(t-g)[/tex]

If the atmospheric temperature is -305 °F and the ground temperature is 50 °F, then t= -305 °F and g= 50 °F

Replacing in the equation for a you get:

[tex]a=-\frac{2000}{7}*(-305-50)[/tex]

[tex]a=-\frac{2000}{7}*(-355)[/tex]

a= 101,428.57

The altitute is 101,428.57 feet

Answer:

[tex]Area = 105[/tex]

Step-by-step explanation:

Given

[tex]W = (-5,4)[/tex] ---- [tex](x_1,y_1)[/tex]

[tex]X = (3,4)[/tex] ------ [tex](x_2,y_2)[/tex]

[tex]Y = (6,-6)[/tex] ----- [tex](x_3,y_3)[/tex]

[tex]Z = (-7,-6)[/tex] ---- [tex](x_4,y_4)[/tex]

Required

Determine the area;

Area is calculated as thus:

[tex]Area = \frac{1}{2}[(x_1.y_2 +x_2.y_3 + x_3.y_4 + x_4.y_1)-(x_2.y_1 +x_3.y_2 + x_4.y_3 + x_1.y_4)][/tex]

Substitute values

[tex]Area = \frac{1}{2}[(-5*4 +3*-6 + 6*-6 + -7*4)-(3*4 +6*4 + -7*-6 + -5*-6)][/tex]

[tex]Area = \frac{1}{2}[(-102)-(108)][/tex]

[tex]Area = \frac{1}{2}[-102-108][/tex]

[tex]Area = \frac{1}{2}[-210][/tex]

[tex]Area = -105[/tex]

[tex]Area = 105[/tex]

None of the options answer the question:

Answer:

The rate is $2.5

Step-by-step explanation:

Given that the expression for the pay of employee is given as

P(b) = 5/2b + 45

we can simplify the fraction and write it as decimal as

P(b) = 2.5b + 45

This means that the employees have a fixed pay of $45

and also a rate of $2.5 per peaches picked

therefore the answer is A. $2.5

The rate is $2.5

Answer:

x intercept (-2,0) y intercept (0,2)

Step-by-step explanation:

Answer:

I'm pretty sure these are the answers

x-intercept (-2,0)

y-intercept (0,2)

Explanation:

x-intercept: Is coordinates where the line hits the x-axis

y-intercept: Is coordinates where the line hits the y-axis

Answer:

Hope you understand my writing!

Answer:

The probability is    [tex]P(Z) = 0.0064 [/tex]

Step-by-step explanation:

From the question we are told that

  The number of members is  n = 15

Generally the number of ways of selecting two member from the fifteen members is mathematically represented as

       [tex]K  =  ^{n}C_2 *  2![/tex]

Here C stands for combination hence we will be making use of the combination functionality in our calculator

      [tex]K  =  ^{15}C_2 *  2 * 1 [/tex]

=>  [tex]K  =  78  *  2 * 1 [/tex]

=>  [tex]K  =  156  [/tex]

Gnerally the number of outcome that matches the outcome required by the committee(Which is  reselecting the member who where the chairman and vice chairman of the board ) is   m =  1

Generally the probability of randomly selecting the two members who currently hold the positions of chairman and vice chairman and assigning them to their current positions is mathematically represented as

      [tex]P(Z) =  \frac{m}{K}[/tex]

=>    [tex]P(Z) =  \frac{1}{156}[/tex]

=>    [tex]P(Z) =  \frac{1}{156}[/tex]      

 =>    [tex]P(Z) = 0.0064 [/tex]      

Answer:

[tex]\angle ABD =42.4^{\circ}[/tex]

Step-by-step explanation:

We are given that Point C is in the interior of ∠ABD

We are also given that ∠ABC ≅ ∠CBD

Now ,

[tex]\angle ABC = (\frac{5}{8}x + 18)\\\angle CBD = (4x)[/tex]

Since we are given that ∠ABC ≅ ∠CBD

So, [tex]\frac{5}{8}x + 18=4x\\4x-\frac{5}{8}x=18\\\frac{32x-5x}{8}=18\\\frac{27x}{8}=18\\x=\frac{18 \times 8}{27}\\x=5.3[/tex]

[tex]\angle CBD = (4x)=4(5.3)=21.2^{\circ}[/tex]

[tex]\angle ABD = \angle CBD+\angle ABC=21.2+21.2=42.4^{\circ}[/tex]

Hence [tex]\angle ABD =42.4^{\circ}[/tex]

Complete question

The complete question is shown on the first uploaded image

Answer:

a

  [tex]y' = 0.85 [/tex]

b

 [tex]P(J) = 0.27  [/tex]

c

 [tex]P(R) = 0.0144 [/tex]

d

  [tex]P(R') =  0.7744 [/tex]

e

 [tex]P(Q) =0.2256 [/tex]

Step-by-step explanation:

From the question we are told that

   The proportion of M & M's that is  brown is  b =  0.12

   The proportion of M & M's that is  yellow  is  y =  0.15

    The proportion of M & M's that is  red  is  r =  0.12

    The proportion of M & M's that is  blue  is  b =  0.23

    The proportion of M & M's that is  orange  is  o =  0.23

    The proportion of M & M's that is  green  is  g =  0.15

Generally the probability that a random selected M&M is not yellow is  

         [tex]y' =  1-y[/tex]

=>      [tex]y' =  1-0.15[/tex]

=>      [tex]y' = 0.85 [/tex]

Generally the probability that a randomly selected peanut M&M isgreen or red is mathematically represented as

       [tex]P(J) =  g +  r [/tex]

=>    [tex]P(J) =  0.15 + 0.12 [/tex]

=>    [tex]P(J) = 0.27  [/tex]

Generally the  probability that two randomly selected peanut M&M’s are both red is mathematically represented as

      [tex]P(R) = r^2[/tex]

=>    [tex]P(R) = 0.12^2[/tex]

=>    [tex]P(R) = 0.0144 [/tex]

Generally if two  two peanut M&M’s are selected the probability that neither of them are red is mathematically represented as

     [tex]P(R') =  (1 -r)^2[/tex]

=>  [tex]P(R') =  (1 - 0.12)^2[/tex]

=>   [tex]P(R') =  0.7744 [/tex]

Generally if two  two peanut M&M’s are selected the probability that at least one of them is red is mathematically represented as

        [tex]P(Q) =  1- P(R')[/tex]

=>      [tex]P(Q) =  1- 0.7744 [/tex]

=>      [tex]P(Q) =0.2256 [/tex]