Answer please !! Due in 45 minutes m

Answer Please !! Due In 45 Minutes M

Answers

Answer 1

Answer:

(-3,3)

Step-by-step explanation:

Using elimination:

Multiply the first equation by 8 and the second by 5 which equals

40x+56y=48

-40-60y=-60

Now you add them together

40x+(-40x)=0 so that crosses out

56y+(-60y)= -4y

48+(-60)=-12

You now have -4y=-12

Divide by -4

y=3

Now plug in y to any of the equations

5x+7(3)=6

5x+21=6

Subtract 21 from both sides

5x=-15

Divide by 5

x=-3

Your final solution is (-3,3)


Related Questions

If ∠1 and ∠2 are vertical angles and m∠2 = 108°, find m∠1.

Answers

Answer:

angle 1 = 108°

Step-by-step explanation:

because angle 1 and angle 2 are vertical angles and vertical angles are equal.

Preston has spent 7hrs of the required 13hrs he needs for ALEKS. What percentage of time does he have left?

Answers

Answer:

he has 46.1538462% left

Step-by-step explanation:

7/13 = 0.538461538

1 - 0.538461538 = 0.461538462

Which statement is true

Answers

Answer:

D

Step-by-step explanation:

hey man. trust me. quack

Answer:

i think that the answer might be d

AP Statistics Quiz 10.2

1.

Mrs. Toguchi wants to determine if politicians tend to have higher salaries, on average, than first

responders (specifically emergency medical technicians, EMTs). Independent random samples from each

of these two professions were selected and their salaries were recorded. The data are summarized below.

a) the distribution of salary in each group is skewed right. The use of two-sample t procedures is still justified why?

b) construct and interpret a 99% confidence interval for the difference in the true mean salaries for politicians and EMTs

Answers

Answer:

Hello some data related to your question is missing attached below is the missing data

a) we will reject the null hypothesis hence it can be determined that the salary of politicians is greater than that of EMTs through the use of two-sample t procedures. since ( to > critical value )

b) ( 3.819 , 8.5226 )

Step-by-step explanation:

Applying the Given data:

The test hypothesis :

H0 : μ1 = μ2

Ha : μ1 > 2

A) since ( to > critical value ) we will reject the null hypothesis hence it can be determined that the salary of politicians is greater than that of EMTs through the use of two-sample t procedures

B ) construct and interpret

next calculate the SP value

[tex]S^{2} _{p}[/tex] = [tex]\frac{( n1 - 1 )S^{2} _{1} + ( n_{2}- 1 )S^{2} _{2} }{n1 + n2 - 2}[/tex]

where: S1 = 7524 , n1 = 50 , n2 = 100 , S2 = 5551   ( input values into equation above )

[tex]S^{2} _{p}[/tex] = 39354491.3716

hence : [tex]S_{p}[/tex] = 6273.32

next calculate the value of test statistic

to = ( X1 - X2 - Δo ) / Sp [tex]\sqrt{\frac{1}{n1} + \frac{1}{n2} }[/tex]

where: X1 = 61234 , X2 = 54529 , Sp = 6273.32 , n1 = 50 , n2 = 100  ( input values into equation above )

to = 6705 / 1086.5702 = 6.1708

Df ( degree of freedom ) = n1 + n2 - 2 = 148

critical value at ∝ = 0.01  = ± 2.3518  ( using excel function : T.INV(0.01,148) )

hence the confidence Interval

= ( 6.1708 ± 2.3518 )

= ( 3.819 , 8.5226 )

For the table of Mrs. Toguchi the t test for two sample is not justified and the confidence interval for this two values is (6.1708, ±2.3518).

What is random sample?

Random sample is the way to choose a number or sample in such a manner that each of the sample of the group has an equal probability to be chosen.

Mrs. Toguchi wants to determine if politicians tend to have higher salaries, on average, than first responders (specifically emergency medical technicians, EMTs).

Independent random samples from each of these two professions were selected and their salaries were recorded. The data are summarized below.

                                   Politicians        EMT's

Mean                            $61,234       $54,529

Standard deviation      $7524          $5551

n                                      50                100

a) The distribution of salary in each group is skewed right. The use of two-sample t procedures is still justified-

The hypothesis for the test,

[tex]H_0:\mu_1=\mu_2\\H_a:\mu_1 > 2[/tex]

No it is not justifies, as the null hypothesis is rejected.

b) construct and interpret a 99% confidence interval for the difference in the true mean salaries for politicians and EMTs

The pooled estimate of a common population standard deviation can be given as,

[tex]S_p=\sqrt{\dfrac{(n_1-1)S_1^2+(n_2-1)S_2^2}{n_1+n_2-2}}[/tex]

Put the values in the above formula from the table, we get,

[tex]S_p=\sqrt{\dfrac{(50-1)(7524)^2+(100-1)(5551)^2}{50+100-2}}\\S_p=6273.32[/tex]

Use the formula of test statistics for equal variance as,

[tex]t=\dfrac{\overline y_1-\overline y_2-0}{s_p\sqrt{\dfrac{1}{n_1}+\dfrac{1}{n_2}}}[/tex]

Put the values from the table as,

[tex]t=\dfrac{61234-54529-0}{(6263.32)\sqrt{\dfrac{1}{50}+\dfrac{1}{100}}}\\t=6.1708[/tex]

The degree of freedom can be given as,

[tex]DF=100+50-2\\DF=148[/tex]

The critical value for 99 percent interval (0.01) is ±2.3518.

Hence, the confidence interval for this two values is (6.1708, ±2.3518).

Thus, for the table of Mrs. Toguchi the t test for two sample is not justified and the confidence interval for this two values is (6.1708, ±2.3518).

Learn more about the random sample here;

https://brainly.com/question/17831271

Wanda drove 392 miles in 14 hours. What is her unit rate of miles per hour?

Answers

The unit rate of miles per hour is 28

A plane is flying at an altitude of 300 meters on a heading
towards both a maintenance hangar and the main runway.
The pilot sights the end of the main runway at
an angle of depression of 15°. She then sights the
maintenance hangar at an angle of depression
of 32°. What is the distance between the end of
the main runway and the maintenance hangar?

Answers

The answer is 639.52 (m)or meters.

Which number is a multiple of 7? A 27 B 48 C 56 ET D 74​

Answers

Answer:

C. 56

Step-by-step explanation:

7*8=56

the distributive law requires

Answers

Answer:

The Distributive Law says that multiplying a number by a group of numbers added together is the same as doing each multiplication separately.

Step-by-step explanation:

Example:  "3" can be "distributed" across the "2+4" into 3 times 2 and 3 times 4.

Which is a function?
O {(-3,5), (1,4), (3,7), (1,7), (4,9)}
O {(7.9), (13,-2), (8,4), (7,0), (4,12)}
O {(2,1), (-1,7), (6,-2), (10,3), (-6,0)}
O {(-2,4), (7,4), (-6,8), (-2,8), (1,1)

Answers

50000000000000000000000000000000000000000000

Answer:

{(7.9), (13,-2), (8,4), (7,0), (4,12)} is a function

Step-by-step explanation:

find the volume of this cylinder. geometry help

Answers

Answer:

Volume=3418.1 ft²

Step-by-step explanation:

Volume:π r² h

r=8 ft

h=17ft

π×8²×17

=3418.052 ft³

=3418.1 ft³

hope it helps...

Solve the system of equations and choose the correct answer from the list of options. d + e = 15 −d + e = −5 Label the ordered pair as (d, e). (4 points) Question 3 options: 1) (0, 0) 2) (10, −5) 3) (5, 10) 4) (10, 5)

Answers

Answer:

3) (5, 10)

Step-by-step explanation:

d + e = 15

-d + e = -5

e = -5 + d

substitude e for -5 + d

d + -5 + d = 15

2d = 10

d = 5

figure out e

5 + e = 15

e = 10

help me please!!!!
The area of a circle is 153.86 square meters. What is the diameter of the circle? Use 3.14 for π.
A. 7 m
B. 14 m
C. 24.5 m
D. 49

Answers

Answer:

= p× r²

= 3,14×7×7

= 21,98×7

= 153,86

[tex]153.86 \div 3.14 = 7[/tex]

peggy drives for 3 hours at an average speed of 61 miles per hour. Then when she crosses over into the next state she is able to drive the next 2.5 hours at an average speed of 72 miles per hour.

what was her average speed for the entire trip?

Answers

Answer:

65 miles per hour

What is the slope of the line 4x + 2y = 8?
А 2
b -2
c 1/2
d -1/2

Answers

Answer:

x = -1/2y+2

Step-by-step explanation:

4x+2y=8

Step 1: Add -2y to both sides.

4x+2y+−2y=8+−2y

4x=−2y+8

Step 2: Divide both sides by 4.

4x/4 = -2y+8/4

x = -1/2y+2

Hope this helps!

Can somebody plz help?

Answers

Answer:

x = 42

Step-by-step explanation:

Let the length of the indicated side be represented as "x".

The Theorem of proportionality can be extended and applied to find the indicated side.

Thus, based on the theorem, it is assumed that the parallel lines divides the transversals proportionally.

This implies that:

x/(77 - x) = 30/25

x/(77 - x) = 6/5

Cross multiply

x(5) = 6(77 - x)

5x = 462 - 6x

Add 6x to both sides

5x + 6x = 462

11x = 462

x = 462/11

x = 42

How does the graph of g(x) = 10x – 8 compare to the graph of f(x) = 10x?
The graphs are the same.
The graphs are translated upward 8 units.
The graphs are translated downward 8 units.
The graphs shift to the left 8 units.

Answers

28 aaaaaa!?!?!!?!?!?!?!

Answer:

Translated down 8 units or C

Step-by-step explanation:

Where is the blue point on the number 0 0 4 4 − 4 −4 ?

Answers

Answer:

The answer should be -12

If you wanted to put a fence around your garden, would you find the perimeter or the area of the garden??

Answers

Answer:

U would find the perimeter.

Step-by-step explanation:

Lines that appear to be tangent are tangent. O is the center of the circle. What is the value of x?

Answers

Answer:

hammood habbi knows

Step-by-step explanation:

32 or 16

ILS.
Carnival visitors
50
70
90
110
130
150
What fraction of the days did the carnival have 70 or fewer visitors?
Submit

Answers

Answer:

its 1/4 :)

Step-by-step explanation:

After observing the number of visitors, the fraction of the days that the carnival has 70 or fewer visitors is 1/3.

A fraction is a part of the whole number and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called fraction.

It can be written in the form of p:q, which is equivalent to p / q.

Given that,

There are 2 days with 70 or fewer visitors.

To find the required fraction,

Determine how many days out of the given total had 70 or fewer visitors.

Since there are 2 days with 70 or fewer visitors,

To calculate the fraction,

Divide the number of days with 70 or fewer visitors (2) by the total number of days (6).

So, the fraction is 2/6.

Simplifying this fraction yields 1/3.

Hence, the required fraction is 1/3.

To learn more about the fraction visit:

https://brainly.com/question/5454147

#SPJ4

Eli gave out a survey to some students in his school about their favorite color. 880 of those surveyed said their favorite color was red. If 88% of the students surveyed said their favorite color was red, how many students were surveyed in total?

Answers

Answer:

The answer is 1000.

Step-by-step explanation:

Someone please help me answer this!!

Answers

Answer:

10

Step-by-step explanation:

For this you can use the pythagorean theorem such as (a^2 + b^2) = c^2 so the answer will be ten

How to write -x^2+12-8x=-3 in standard form

Answers

Answer:

-x^2-8x+15=0

Please mark as brainliest

Answer:

give me a min if you can

Step-by-step explanation:

Lincoln is seeking a loan with a simple interest rate of 8% per year. If he wants to borrow $5000, then how much will he be charged in interest for 24 months? $8,000 $9,600 $1,250 $800​

Answers

Answer:

Lincoln will be charged $9,600.

Step-by-step explanation:

To find the answer we will first turn 8% into a decimal.  8 ÷ 100 = 0.08.  Now multiply 0.08 by $5,000 and we get $400.  then multiply $400 by 24 and we get $9,600.  Therefore, $9,600 is our answer.

An in-ground pond has the shape of a rectangular prism. The pond has a depth of 24 inches and a volume of 72,000 cubic inches. The length
the pond is two times its width.
Find the length and width of the pond to the nearest tenth.

Answers

Answer:

Should be

Width: 38.7

Length: 77.5

Please give me Brainliest and like

3|2z-4|-6>12
Solve for z

Answers

Answer:

312z-41-6>12

subtract -41-6

312z-47>12

add it on both sides

312z-47>12

      +47   +47

312z>59

divide 312 to both sides

z<0.189

Answer:

can someone help me pls i dont know 2x=4=

Step-by-step explanation:

What is the median of the data represented by the box plot?

enter your answer in the box

Answers

Answer:

[tex]Median= 20[/tex]

Step-by-step explanation:

Given

The attached box plot

Required

The median

The median is represented by the vertical line inside the rectangle on the box plot.

Using the description above to read the median from the given box plot.

[tex]Median = 20[/tex]

It is also the same as the second quartile

Haley pays a monthly fee of $20 for her cell phone and then pays 5 cents per minute used. The total cost of Haley’s monthly cell phone bill can be expressed by the function C(m) = 0.05m + 20, where m is the number of minutes used. What are the domain and range of the function C(m)?

Answers

Answer:

The domain is [tex]D_C = [0,\infty)[/tex]

The range is: [tex]R_C = [20,\infty)[/tex]

Step-by-step explanation:

Domain and range of a function:

The domain of a function are the values that the input assumes, while the range are the values that the output assumes.

In this question:

[tex]C(m) = 0.05m + 20[/tex]

m is the input, which is the number of phone calls, which can be any number between 0 and infinite. So

The domain is [tex]D_C = [0,\infty)[/tex]

When the input is m = 0, the value of C(0) = 20. As m increases, so does C(m). This means that:

The range is: [tex]R_C = [20,\infty)[/tex]

Answer:

Option 1  because

domain: m is Greater than or equal to zero

range: C is greater than or equal to twenty

Step-by-step explanation:

The (C) cost of the bill is always going to start at twenty and be higher depending on how many (m) minutes were used.

Edg2021

Which shape is the base of the pyramid shown below?
A triangle
B square

Answers

B square
hope that helps!

Answer:

B. it's a square pyramid so the base is a square.

Step-by-step explanation:

40 pts please help! picture below!

Answers

Answer:

B. 135

Step-by-step explanation:

CB is 45

AB= half of circle or 180*

So, 180-45=135

Therefore, the answer is 135* or b

hope this helps

Answer:

135 degrees

Step-by-step explanation:

Since the angle is measured from the center, the arc is the same as the angle measurement.

ACB = 180

AC + CB = 180

AC + 45 = 180

AC = 180-45 = 135

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