3xy - 4y when y = 2 and x = 5​

Answers

Answer 1

Answer:

22

Step-by-step explanation:

Answer 2
the answer is 22!! :) mark me as brainliest please so I can help more people ?!

Related Questions

Find the slope of the line that passes through the points (2,8) and (6,8).

Answers

Answer:

8-8/6-2

0/4

answer is 0

y=0x+c

8=0(2)+c

8=0+c

8=c

y=0x+8 i thinkkk

Step-by-step explanation:

Answer:

8-8/6-2

0/4

answer is 0

y=0x+c

8=0(2)+c

8=0+c

8=c

y=0x+8

Step-by-step explanation:

HELP HELP PLEASE IM BEGGING YOU HELP!

Answers

Answer:

22 * n + 4

Step-by-step explanation:

PLZ HELP MY TEACHER IS GIVING ME SO MUCH WORK


If you walking on the sidewalk and your pencil falls how many toddlers did you eat last night with Tom Holland???​

Answers

What sort of question is that lol
the answer is 69-
just trust me it’s right

Will mark brainliest!!
Solve for x

Answers

Answer:

The x=22

Step-by-step explanation:

At 8:00 the temperature in Juneau was -8º F. Ten hours later the temperature was -25º F. By how many degrees Fahrenheit did the temperature change?

Answers

Answer:

17

Step-by-step explanation:

25-8=17 therefore the temp changed by 17

Tyler was at the amusement park. He walked at a steady pace from the ticket booth to the bumper
cars.

The point on the graph shows his
arrival at the bumper cars. What do
the coordinates of the point tell us
about the situation?

What does the point (0,0) mean in
this situation?


What is the constant of
proportionality for the relationship
between time and distance? What
does it tell you about Tyler's walk?
Where do you see it in the graph?

Answers

9514 1404 393

Answer:

  a) It took 40 seconds to go 50 meters from the ticket booth

  b) Tyler started at the ticket booth

  c) k = 5/4

  d) Tyler walked at the rate of 1.25 meters per second

  e) The constant of proportionality is the slope of the line from (0, 0) to (40, 50). It is not shown on the graph.

Step-by-step explanation:

a) The axis labels on the graph tell you that 40 represents the number of seconds of elapsed time, and 50 represents the number of meters from the ticket booth. With the information in the problem statement, the coordinates (40, 50) tell us it took Tyler 40 seconds to walk 50 meters from the ticket booth to the bumper cars.

__

b) The point (0, 0) tells us that Tyler started counting time when he left the ticket booth.

__

c) The constant of proportionality is the ratio of the second coordinate to the first. The constant of proportionality is 50/40 = 5/4 = 1.25. (Its units are meters per second.)

__

d) The constant of proportionality tells us that Tyler's steady pace was 1.25 meters per second.

__

e) The constant of proportionality is not shown on the graph. It is the slope of a line between the origin and the point (40, 50).

Please help quick!
Subtracting a number is the same as adding its opposite.
Use this understanding to complete each of the equations below.

Enter numbers to evaluate −5−(−7).

‐5 –(‐7)= ‐5 + _______

= ________

Enter numbers to evaluate −5−7.

‐5− 7 = ‐5 + _______

= ________

Answers

Answer:

-5+7

=2

-5+-7

=-12

Step-by-step explanation:

It is the same thing with adding its opposite(aka change its sign so addition is being imply)

Write an equation for a line perpendicular to h(t) = -2t +4 and passing through the point (-4, -1).

Answers

Answer:

y=1/2t+1

Step-by-step explanation:

To get a perpendicular line, the slopes have to be reciprocals.

Write the standard form of the equation of the circle below.
Center (0,-1) passes through the point (-1,-2)

Answers

Answer:

[tex]x^2+(y+1)^2=2[/tex]

Step-by-step explanation:

We use the formula for a circle with center at (0, -1), that goes through the (x, y) point (-1, -2):

[tex](x-0)^2 + (y-(-1))^2 = R^2\\Using \,\,\,point\,\,\,(-1, -2)\\(-1-0)^2+ (-2+1)^2 = 1 + 1 = 2 = R^2[/tex]

Therefore, the equation of this circle can be written as:

[tex]x^2+(y+1)^2=2[/tex]

6 more than 7 times 3 ?

Answers

Answer:

27

Step-by-step explanation:

A biologist studied the frequency of croaks for frogs from two different regions. From a random sample of 32 frogs located in the northern region, the mean number of croaks per hour was 21.3, and from a random sample of 38 frogs located in the southern region, the mean number of croaks per hour was 28.9. To estimate the difference in the mean number of croaks (southern minus northern), a 95 percent confidence interval was constructed from the samples. The interval was reported as (7.1, 8.1). Which of the following claims is supported by the interval?
A. All southern frogs croak more times per hour than do all northern frogs.
B. The northern frogs are likely to have a greater mean number of croaks per hour than the southern frogs.
C. The southern frogs are likely to have a greater mean number of croaks per hour than the northern frogs.
D. All frogs in the study have about the same number of croaks per hour.
E. The northern and southern frogs have the same mean number of croaks per hour.

Answers

Answer:

C

Step-by-step explanation:

Since at the 95% confidence, the difference between the number of croaks per hour between southern and northern region frog is lying in the rage 7.1 to 8.1, this shows that the southern region's frogs' croak frequency is highly likely to be greater than that of northern region's frogs' croaks' frequency.

The claim supported by the interval is

Option C. The southern frogs are likely to have a greater mean number of croaks per hour than the northern frogs.

What does the interval tell obtained in the hypothesis testing?

The interval we obtain at certain confidence tells that the value of the test statistics will lie in that interval with that confidence.

How to identify what is the obtained interval indicating?

Since the test statistics was measuring the croak frequency difference

with southern - northern, and since at 95% confidence,  the difference will lie in interval (7.1, 8.1), which is positive, thus the frequency of crocks for southern frogs is greater than the frequency of crocks for northern frogs.

Thus,

The claim supported by the interval is

Option C. The southern frogs are likely to have a greater mean number of croaks per hour than the northern frogs.

Learn more about confidence interval here:

https://brainly.com/question/14562078

9(2k-3m)-9m-4(-3m-3k)

Answers

Answer:

30k−24m

Step-by-step explanation:

find the value of x in the equation below.

x+1=6

Answers

X+1=6
Move the constant to the right hand side and change its sing
X=6-1
You subtract the number
X=5
And that’s your solution

What is the distance between point (8,4) and point (3,2) rounded to the nearest tenth?

Answers

Step-by-step explanation:

the answer of this question is 5.39

Simplify
(45x6y%) = (5x4y2

Answers

Answer:

0 would be your anwswer

Step-by-step explanation:

help plss , thanksss !!

Answers

Answer:

a or c

Step-by-step explanation:

Turkey for dinner would be correct

A machine is designed to fill 16oz bottles of shampoo. When the machine is working properly, the mean amount poured into the bottles is 16.05oz with a standard deviation of 0.1oz. Assume that the machine is working properly. If four bottles are randomly selected each hour and the number of oz in each bottle is measured, then 95% of the observations should occur in which interval

Answers

Answer:

The 95% of confidence interval are

(15.8663 ,16.2337)

Step-by-step explanation:

Step(i):-

Size of the Population = 16

Size of the sample (n) = 4

The mean of the sample = 16.05 oz

The standard deviation of the sample (S) = 0.1 oz

Degrees of freedom =n-1 =4-1 =3

t₀.₀₅,₃  = 3.1824

Step(ii):-

The 95% of confidence interval is determined by

[tex](x^{-} - Z_{0.05} \frac{S}{\sqrt{n} } , x^{-} -+Z_{0.05} \frac{S}{\sqrt{n} })[/tex]

[tex](16.05 - 3.1824\frac{0.1}{\sqrt{3} } , 16.05 -+3.1824 \frac{0.1}{\sqrt{3} })[/tex]

(16.05 -  0.1837 ,16.05  +0.1837 )

(15.8663 ,16.2337)

Final answer:-

The 95% of confidence interval are

(15.8663 ,16.2337)

Use either Gaussian elimination or Gauss-Jordan elimination to solve the given system or show that no solution exists. (If there is no solution, enter NO SOLUTION. If the system has an infinite number of solutions, use t for the parameter.) x1 + x2 + x3 = 0 x1 + x2 + 9x3 = 0

Answers

Answer:

x1 = t, x2 = -t and x3 = 0

Step-by-step explanation:

Given the system of equation

x1 + x2 + x3 = 0 .... 1

x1 + x2 + 9x3 = 0 .... 2

Subtract both equation

x3 - 9x3 = 0

-8x3 = 0

x3 = 0

Substitute x3 = 0 into equation 1

x1 + x2 + 0 = 0

x1+x2 = 0

x1 = -x2

Let t = x1

t = -x2

x2 = -t

Hence x1 = t, x2 = -t and x3 = 0

What is the exponential form of log5 15,625 = 6?

Answers

Answer:

I'm currently having the same lesson.

Exponential form:

5⁶ = 15,625

The number next to the "log" symbol is the base, which is positioned down. Next to the base of the exponent is the result of the exponent.

The number after the equal sign is the exponent.

Check the image for better clarification.

Step-by-step explanation:

Answer: [tex]5^{6} =15625[/tex]

Step-by-step explanation:  

3 Times Square root of 200 simplified

Answers

Answer:

C. [tex]30\sqrt{2}[/tex]  

I hope this helps!

The simplified form of expression 3 times the square root of 200 is 30√2 ( thirty times square root 2 ) .

To simplify the expression 3 times the square root of 200, we can break it down into smaller components .

First, let's simplify the square root of 200 :

√ 200 = √ ( 100 × 2 ) = √ 100 × √ 2 = 10√2

Now, we substitute this simplified value back into the original expression :

3 × √ 200 = 3 × ( 10√ 2 ) = 30√ 2

Therefore, the simplified form of 3 times the square root of 200 is 30√2 .

To know more about simplified click here :

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4x10 26 [87.96 x 10 6]​

Answers

Answer:

remember that you start in the [ ] and work your way out

Step-by-step explanation:

how do I make another similar figure​

Answers

Draw it with a pencil or your required art supply.
Follow the lines with a pencil!! Good job

calculate the unit rate of change for each linear function using the formula. (4,9) (8,12) (16,18) (32,30)

Answers

Answer:

The unit rate of change is of [tex]\frac{3}{4}[/tex]

Step-by-step explanation:

We are given a set of points (x,y).

To find the unit rate of change, we take two points, and divide the change in y by the change in x.

Points (4,9) and (8,12)

Change in y: 12 - 9 = 3

Change in x: 8 - 4 = 4

Unit rate of change: [tex]\frac{3}{4}[/tex]

4(y - 3) =
Use distributive property to complete the equivalent expression

Answers

Answer:

Step-by-step explanation:

4(y-3) = 4y - 4·3 = 4y - 12

The equivalent value of the expression is A = 4y - 12

Given data ,

Let the equation be represented as A

Now , the value of A is

A = 4 ( y - 3)

On simplifying the equation , we get

A = 4 ( y - 3 )

So , the left hand side of the equation is equated to the right hand side by the value of A = 4 ( y - 3 )

Opening the parenthesis on both sides , we get

A = 4 ( y - 3 )

Using the distributive property , we get

A = 4 ( y ) - 4 ( 3 )

On further simplification , we get

A = 4y - 12

Taking the common factor as 4 , we get

A = 4 ( y - 3 ) = 4y - 12

Therefore , the value of A = 4y - 12

Hence , the expression is A = 4y - 12

To learn more about equations click :

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Need help in math!!!!!!!!

Answers

Answer:

1.9x+2(1.5)>30

Step-by-step explanation:

1.9(15)+2(1.5)

28.5+3

31.5 dollars

therefore the equation is grater than 30 dollars

I NEED HELP ( WILL GET BRAINLYIST FOR CORRECT ANSWER)

Answers

Answer:

36 units.

Step-by-step explanation:

A rectangular room measures 21 feet by 28 feet with a 10-foot-high ceiling. The flooring is being replaced with carpeting that sells for $10.45 per square foot and entails a $149 installation fee. What is the total pricing for the carpeting with an 8.0% sales tax

Answers

9514 1404 393

Answer:

  $6,797.09

Step-by-step explanation:

The area of the floor is ...

  (21 ft)(28 ft) = 588 ft²

Then the cost of the carpet material is ...

  (588 ft²)($10.45/ft²) = $6,144.60

The subtotal with installation fee is ...

  $6,144.60 +149.00 = $6,293.60

Adding the sales tax multiplies this amount by 1 +8% = 1.08, so the final price is ...

  1.08 × $6,293.60 = $6,797.09 . . . total price

I need help... plssss :))

Answers

Answer:

(1, -1), (1, -2), (2, -3), (2, -4)

NO

Step-by-step explanation:

✔️Each ordered pair is written as (input, output).

Thus, we would have the following:

(1, -1), (1, -2), (2, -3), (2, -4)

✔️This cannot be a function because every input value do not have exactly one output value related to it. A function should not have an input value related to more than one output value.

So, the answer is NO. It is not a function.



Find two integers whose sum is -9 and product is 14

Answers

-7, 2

-7 + -2 = -9

-7 * -2 = 14

FOR 20 points

Show your work neatly for each problem.
1. Michelle and Cameron are selling popcorn for a school fundraiser. Michelle sold 10 tins of cheese
popcorn and 8 tins of caramel popcorn for a total of $446. Cameron sold 22 tins of cheese popcorn and
11 tins of caramel popcorn for a total of $803. Write a system of equations to determine the cost one tin
of cheese popcorn and one tin of caramel popcorn. Show all your work.

Answers

Answer:

one tin of cheese $23

one tin of caramel $27

Step-by-step explanation:

let 'x' = cost of cheese tin

let 'y' = cost of caramel tin

10x + 8y = 446

22x + 11y = 803

i multiplied the first equation by -11 and the second by 8 to eliminate the 'y' terms

  -110x - 88y = -4906

+  176x + 88y = 6424

    66x = 1518

     x = 1518 / 66

     x = 23

find 'y':  10(23) + 8y = 446

             230 + 8y = 446

              8y = 216

               y = 27

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