PLEASE HELP i’ll give u the brainlest thingy

witch ones do you need help with  

[tex]\frac{5}{2}x-7=\frac{3}{4}x+14[/tex]

[tex]\frac{5x}{2}-7=\frac{3}{4}x+14\\\\\frac{5x}{2}-7=\frac{3x}{4}+14[/tex]

10x−28=3x+56

10x=3x+56+28

10x=3x+84

10x−3x=84

7x=84

[tex]x=\frac{84}{7}[/tex]

x=12

Hope this helps, have a blessed and wonderful day!

Answer:

504 Miles per day

8,568 / 17 = 504

Step-by-step explanation:

Answer:

[tex]m=1[/tex]

Step-by-step explanation:

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Simply plug in the 2 coordinates into the slope formula to find slope m:

(1, -3)

(4, 0)

[tex]m=\frac{0-(-3)}{4-1}[/tex]

[tex]m=\frac{0+3}{3}[/tex]

[tex]m=\frac{3}{3}[/tex]

[tex]m=1[/tex]

Answer:

1. This is an observational study.

2. The explanatory variable is A. red meat consumption

3. The response variable is B. Whether or not a subject dies.

Step-by-step explanation:

1. An observational study is a type of study where the researcher would observe the effects and he would also make no attempt to change the outcome

2. The explanatory variable is also called the independent variable and in this case it is red meat consumption because it is what would be used to predict the dependent variable

3. The response variable is known as the dependent variable it is our variable of interest. It is what the researcher is trying to find out. In this case the answer is whether or not the subject dies

Answer:

f(t) = 5.4 + 0.3sin (2π/4.5t)

Step-by-step explanation:

See attachment

Answer:

Step-by-step explanation:

2.66

Answer:

a

   [tex]Y  = \$ 30000[/tex]

b

  [tex]Y  = \$ 11250 [/tex]

c

  [tex]X  = \$  36250  [/tex]

Step-by-step explanation:

From the question we are told that

   The annual taxable income is [tex]A = \$ 300,000[/tex]

   The tax rate for next year is  [tex]r =  0.25[/tex]

   The  present tax rate is  [tex]R =  0.35[/tex]

Generally the present amount of tax collected from Ms Benoit is  

         [tex]K =  A   * R[/tex]

        [tex]K =  300000  * 0.35 [/tex]

=>       [tex]K =   \$105000 [/tex]

Generally the  amount of tax collected from Ms Benoit nest year  is

          [tex]B =  A   * r[/tex]

        [tex]B =  300000  * 0.25 [/tex]

=>       [tex]B =   \$75000  [/tex]        

The  reduction in the tax amount is mathematically represented as

       [tex]Y  =  K  - B[/tex]

=>     [tex]Y  =  105000  - 75000[/tex]

=>    [tex]Y  = \$ 30000[/tex]

Generally the tax amount of next year when the income is  $375,000 is mathematically represented as

    [tex]M  =  375 000   *   r[/tex]

=>    [tex]M  =  375 000   *   0.25[/tex]

=>     [tex]M  =  \$ 93 750 [/tex]

The  reduction in the tax amount is mathematically represented as when  the income for next year  is  $375,000

             [tex]Z  =  K  - M[/tex]

=>     [tex]Z  =  105000  -93 750 [/tex]

=>    [tex]Z  = \$ 11250 [/tex]

Generally the tax amount of next year when the income is  $275,000 is mathematically represented as

    [tex]U  =  275,000   *   r[/tex]

=>    [tex]U  =  275 000*   0.25[/tex]

=>     [tex]M  =  \$ 68 750  [/tex]

The  reduction in the tax amount is mathematically represented as when  the income for next year  is  $275,000

             [tex]X  =  K  - M[/tex]

=>     [tex]X  =  105000  -68 750 [/tex]

=>    [tex]X  = \$  36250  [/tex]

I have attached the graph

Answer:

27 students

Step-by-step explanation:

[tex](x - 13)(x + 3) \\ = x {}^{2} + 3x - 13x - 39 \\ = x {}^{2} - 10x - 39 [/tex]

Answer:

2.75

hope you get a 100!!

Answer:

Translation And Rotation I believe!

Step-by-step explanation:

Complete Question

The complete question is shown on the first uploaded image

Answer:

The value  is [tex]t = 2.51 [/tex]

Step-by-step explanation:

From the question we are told that

   From the question we are told that  

    The first sample mean is  [tex]\= x_1 = 71.1[/tex]

     The first standard deviation is [tex]\sigma _1 = 19.4[/tex]

     The  second sample mean is  [tex]\= x_2 = 63.4[/tex]

     The second sample  deviation is  [tex]\sigma_2 = 10.5[/tex]

     The first sample size is  [tex]n_1 = 55[/tex]

      The second sample size is  [tex]n_2 = 46[/tex]

Generally the test statistics is mathematically represented as

         [tex]t = \frac{\= x_1 - \= x_2 }{ \sqrt{\frac{s_1^2 }{n_1} +\frac{s_2^2 }{n_2} } }[/tex]

=>   [tex]t = \frac{71.1 - 63.4 }{ \sqrt{\frac{19.4^2 }{55}  +\frac{10.5^2 }{46}   } }[/tex]

=>   [tex]t = 2.51 [/tex]

Answer:

I solved it and my answer is 43

Step-by-step explanation:

25×{8- (7)} +18

25 (1) +18

25×1=25

25+18=

43

Answer:

600

Step-by-step explanation:

Answer:

Step-by-step explanation:

regular working hours = 40

excess is to be paid = 1.5 times the rate

rate = $ 12/hour

Alicia worked:

8 hours Mon to Fri   =  8 x 5 = 40 hours x $12 per hour =  $ 480

2 hours Sat                            = 2 hours x ($12 x 1.5)        =  $ 36

4 hours Sun                           = 4 hours x ($12 x 1.5)       =  $ 72  

                                                                           total       = $ 588

Answer:

The decision rule is  

Reject the null hypothesis

The conclusion

There is sufficient evidence to conclude that mean daily consumption of regular-coffee drinkers greater than that of decaffeinated-coffee.

The p-value  is  [tex]p-value  = 0.03682 [/tex]

Step-by-step explanation:

From the question we are told that

   The first sample size is  [tex]n_ 1 = 50[/tex]

   The first sample mean is [tex]\=x_1  =  3.84[/tex]

The first sample standard deviation is  [tex]s_1  = 1.26[/tex]

    The second sample size is  [tex]n_2  =  40[/tex]      

   The second  sample mean is   [tex]\=x_2  =  3.35 [/tex]

    The second sample standard deviation is [tex]s_2  =  1.36[/tex]

    The level of significance is  [tex]\alpha =  0.05[/tex]

The  null hypothesis is  [tex]H_o  :  \mu_1  = \mu_2[/tex]

The alternative hypothesis is  [tex]H_a  :  \mu_1  >  \mu_2[/tex]

Generally the test hypothesis is mathematically represented as

 [tex]t =  \frac{( \= x_1 - \= x_2 ) - 0}{ \sqrt{ \frac{s^2_1 }{n_1}  + \frac{s^2_2}{n_2} } }[/tex]

=>  [tex]t =  \frac{( 3.84 - 3.35  ) - 0}{ \sqrt{ \frac{1.26^2 }{50}  + \frac{1.36^2}{40} } }[/tex]

=>   [tex]   t =  1.789  [/tex]      

Generally the p-value is mathematically represented as

      [tex]p-value  =  P(t > 1.789)[/tex]

From the z table  

    [tex]\Phi (1.789) =  0.03682[/tex]

So

   [tex]p-value  =  P(t > 1.789) =  0.03682 [/tex]

From the value obtained we see that [tex]p-value < \alpha[/tex] hence

The decision rule is  

Reject the null hypothesis

The conclusion

There is sufficient evidence to conclude that mean daily consumption of regular-coffee drinkers greater than that of decaffeinated-coffee

Answer: YES

Step-by-step explanation:

Answer:

the corrects answer is -3

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

For example, the ordered pair x + 6y = 4 answer is 24

The required ordered pair is the solution of the equation x + 6y = 4 is (1, 1/2).

The equation is the relationship between variables and represented as y = ax + b is an example of a polynomial equation.

Here,
Given equation,
x + 6y = 4,

In order to determine the ordered pair for the given equation, we must assign the value of the one variable, so the satisfied value of the other value of the independent variable will be determined, and the pair will be said to be the required ordered pair.

Now,
Put x = 1
1 + 6y = 4
y = 4 -1 / 6
y = 1/2

Thus, the required ordered pair is the solution of the equation x + 6y = 4 is (1, 1/2).

Learn more about equations here:

brainly.com/question/10413253

#SPJ5

Answer:

15

Step-by-step explanation:

Step 1:

3 ( 2x + 5 ) = 3x + 4x     Equation

Step 2:

6x + 15 = 7x     Combine Like Terms/Multiply

Step 3:

15 = 7x - 6x        Subtract 6x on both sides

Answer:

15 = x

Hope This Helps :)

Answer: Mary potted 27 plants.

Step-by-step explanation:

Answer: 9/16

Explanation: When dividing by a fraction, we can change

the division sign to multiplication and flip the second fraction.

So 3/8 ÷ 2/3 means the same thing as 3/8 · 3/2.

So when dividing by a fraction, we can just multiply

by the reciprocal of that fraction or that fraction flipped.

Now multiplying across the numerators and denominators, we have 9/16.

Since 9/16 is in lowest-terms, it's or final answer.

Answer:

The answer is 1 4 and the last one

Step-by-step explanation:

Answer:

3w-4 = 68

Hope this helped!

Answer:

Step-by-step explanation:

Supplementary angles add up to 180°

Angles

and

Answer:

x = 35

77 degrees

Step-by-step explanation:

Supplementary angles mean that two angles add up to measure 180 degrees.

Solve for x.

(3x - 2) + (2x + 7) = 180

~Combine like terms

5x + 5 = 180

~Subtract 5 to both sides

5x = 175

~Divide 5 to both sides

x = 35

Angle 1:

3x - 2

3(35) - 2

105 - 2

103 degrees

Angle 2:

2x + 7

2(35) + 7

70 + 7

77 degrees

103 > 77

The smaller angle is 77.

Best of Luck!

Answer:

135/512

Step-by-step explanation:

In a deck of card, there are 13clubs.

A deck of card contains 52cards

Total clubs = 13cards

Probability of selecting a club and replacing is expressed as P(C) = total number of clubs/total card

P(C) = 13/52 = 1/4

q = 1-p

q = 1-1/4

q =3/4

Let X be probability function used is a binomial distribution formula expressed as:

Since 5cards is drawn at random, n = 5

P(X = x) = nCx q^(n-x)p^x

P(X = x) = 5Cx 3/4^(5-x)•(1/4)^x

The probability of the sequence is expressed as:

P(X = x) = 5Cx 3/4^(5-x)•(1/4)^x

x is the number of clubs present

b) To find the probability of getting exactly 2 clubs in a sequence of 5 cards drawn at random with replacement from a 52 card deck, we will substitute x = 2 into the probability function in (a) a shown;

P(X = 2) = 5C2•3/4^(5-2)•(1/4)^2

P(X = 2) = 5C2•3/4^(3)•(1/4)^2

P(X = 2) = 5C2•27/64•(1/16)

P(X = 2) = 5C2•27/1024

P(X = 2) = 5!/(5-2)!2!•27/1024

P(X = 2) = 5!/3!2!•9/1024

P(X = 2) = 5×4×3!/3!2•27/1024

P(X = 2) = 5×4/2•27/1024

P(X = 2) = 10•27/1024

P(X = 2) = 135/512

Hence the probability of getting exactly 2 clubs in a sequence of 5 cards drawn at random with replacement from a 52 card deck is 135/512