What is the value of the expression below when y = 4 and y = 2? 4x + 10y

Answer: 15/2

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Answer:

7 units is the distance

Step-by-step explanation:

________________________________

Step 1:

[tex](2x + 3)(2x - 4)[/tex]

Write the equation

step 2:

[tex] = 4 {x}^{2} - 8x + 6x - 12[/tex]

open brackets and multiply (2x+3) with (2x-4)

step 3:

[tex] = 4 {x}^{2} - 2x - 12[/tex]

subtract -8x and +6x

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Answer:

The 2nd answer point is correct

Step-by-step explanation:

Multiple sites

Answer:

A^2-6A+8 is the answer.......

Answer:

Ax+By=C

Step-by-step explanation:

[tex]\tt{Hey~there![/tex]

[tex]\tt{3\div320[/tex]

[tex]\tt{Divide~the~two~numbers:[/tex]

[tex]\tt{3\div320=0.009375[/tex]

[tex]\boxed{\tt{0.009375}}[/tex]

[tex]\tt{Hope~this~helps![/tex]

[tex]\boxed{\tt{-TestedHyperr}}[/tex]

Answer: 9

Step-by-step explanation:

The value of functions g(f(4)) is 9, f(g(4))=9 and g(f(−1)) is 64

A relation is a function if it has only One y-value for each x-value.

The given functions are  f(x) = x − 7 and g(x) = x²

We have to find g(f(4))

Let us find f(4) = 4-7=-3

g(-3)=9

g(f(4)) = 9

f(g(4))=f(16)

f(g(4))=9

g(f(−1))= g(-8)

g(f(−1))=64

Hence, the value of functions g(f(4)) is 9, f(g(4))=9 and g(f(−1)) is 64

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Answer:

All the ordered pairs (a,b) are

(0,5), (2,3), (4,1), (6,8), and (8,6).

Step-by-step explanation:

765ab4 to be divisible by 36, it must be divisible by both 9 and 4.

For any number to be divisible by 4, the last two digits of the number must be divisible by 4.

Here, the last two digits are b4, so as the number b4 is divisible by 4, b can be 0,2,4,6, and 8.

For any number to be divisible by 9, the sum of all the digit of the number must be divisible by 9.

Here, the sum of all the digits, S= 7+6+5+a+b+4=22+a+b.

Now, we have b={0,2,4,6, 8}

For b=0,

S=22+a+0=22+a which is a multiple of 9.

So, the possible value of the digit a :

a=5

So, (a,b)=(0,5)

For b=2,

S=22+a+2=24+a which is a multiple of 9.

So, the possible value of the digit a :

a=3

So, (a,b)=(2,3)

For b=4,

S=22+a+4=26+a which is a multiple of 9.

So, the possible value of the digit a :

a=1

So, (a,b)=(4,1)

For b=6,

S=22+a+6=28+a which is a multiple of 9.

So, the possible value of the digit a :

a=8

So, (a,b)=(6,8)

For b=8,

S=22+a+8=30+a which is a multiple of 9.

So, the possible value of the digit a :

a=6

So, (a,b)=(8,6)

Hence, all the ordered pairs (a,b) are

(0,5), (2,3), (4,1), (6,8), and (8,6).

Answer:

4 minutes and 30 seconds

Answer:

( x + 4 ) ( 3x + 1 )

Step-by-step explanation:

→ Identify the product, sum & factors

Product = 4

Sum = 13

Factors = 4 & 1

3x² + 12x + x + 4

→ Factorise 3x² + 12x and x + 4

3x² + 12x ⇔ 3x ( x + 4 )

x + 4 ⇔ 1 ( x + 4 )

→ Take out the ( x + 4 ) as a factor and ( 3x + 1 )

( x + 4 ) ( 3x + 1 )

Problem 22

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Explanation:

y = kx is the general form for direct variation. K is some constant.

Plug in (x,y) = (-3,5) to find k

y = kx

5 = k*(-3)

-5/3 = k

k = -5/3

-------------

The equation is y = (-5/3)x. Now plug in y = -1 to find x

y = (-5/3)x

-1 = (-5/3)x

(-5/3)x = -1

x = -1*(-3/5)

x = 3/5

==========================================================

Problem 23

---------------------------------------

Explanation:

Same idea as above. First we need to find k.

y = kx

-7 = k(-3) .... plug in x = -3 and y = -7

-3k = -7

k = 7/3

The equation is y = (7/3)x

-------------

We can use this to find y when x = 9

y = (7/3)x

y = (7/3)*9 .... plug in x = 9

y = 21

==========================================================

Problem 24

---------------------------------------

Explanation:

First find k

y = kx

25 = k*15

25/15 = k

5/3 = k

k = 5/3

The equation is y = (5/3)x

------------

Now find y when x = 6

y = (5/3)x

y = (5/3)*6

y = 10

Answer:

  22. 3/5

  23. 21

  24. 10

Step-by-step explanation:

In each case, multiply the old value of the variable of interest by the new/old ratio of the given variable values.

__

22. x = (-1/5)(-3) = 3/5

23. y = (9/-3)(-7) = 21

24. y = (6/15)(25) = 10

_____

The proportions can be written as either of ...

  newX/newY = oldX/oldY   ⇒   newX = (newY/oldY)(oldX)

or, the same thing with x and y interchanged:

  newY/newX = oldY/oldX   ⇒   newY = (newX/oldX)(oldY)

Answer:

$115

Step-by-step explanation:

15x6=90

90+25=115

Answer:

1

Step-by-step explanation:

3x + 9= 9 -3x

Collect like terms

3x + 3x = 9-9

6x = 0

X = 0

6

Answer:

1 Solution

Step-by-step explanation:

Step 1:

3x + 9 = 9 - 3x

Step 2:

6x + 9 = 9

Step 3:

6x = 0

Answer:

x = 0

Hope This Helps :)

Answer:

w = 3/4 or w = -1/4

Step-by-step explanation:

3l4w - 1l - 5 = 1

Add 5 to both sides.

3|4w - 1| = 6

Divide both sides by 3.

|4w - 1| = 2

Set the inside of the absolute value equal to 2 and -2.

4w - 1 = 2 or 4w - 1 = -2

Add 1 to both sides.

4w = 3 or 4w = -1

Divide both sides by 4.

w = 3/4 or w = -1/4

Check w = 3/4:

3l4w - 1l - 5 = 1

3|4(3/4) - 1| - 5 = 1

3|3 - 1| - 5 = 1

3|2| - 5 = 1

6 - 5 = 1

1 = 1

w = 3/4 works.

Check w = -1/4:

3l4w - 1l - 5 = 1

3|4(-1/4) - 1| - 5 = 1

3|-1 - 1| - 5 = 1

3|-2| - 5 = 1

3(2) - 5 = 1

6 - 5 = 1

1 = 1

w = -1/4 works.

There are no extraneous solutions.

Answer: w = 3/4 or w = -1/4

Answer:

B. 21.5

Step-by-step explanation:

Median is the center value in a list of numbers arranged in ascending order.

In this case, values given in the list are in increasing order ;

10 , 11, 12, 15, 19, 24, 27, 29, 33 ,38  --------identify the middle value

The middle position has two values , 19 , 24 ---------find the average

( 19+24 )/ 2

43 / 2 = 21.5

The median is 21.5 (answer choice B).

Choice A is incorrect because sum of middle values (43) divided by two is not 21.8 .It is 21.5

Choice C and D are incorrect because 19 and 24 are both at the middle of the list of numbers so to get the correct median you get the average of the two middle values.

Answer:

you plug -6 and get 8x(1-(-6))=8×7=56

Step-by-step explanation:

Answer:

56

Step-by-step explanation:

f(-6) = 8(1 - (-6))

f(-6) = 8(1 + 6)

f(-6) = 8(7)

g(-6) = 56

Best of Luck!

Answer:

Step-by-step explanation:

Which number is the largest?

The first one is the largest as it has the greatest power

Answer:

A

Step-by-step explanation:

Remember that the sum of the interior angles of a triangle is always 180 degrees. We are given that two of the interior angles of the triangle are y and the exterior angle that is connected to the missing interior angle is 130 degrees. We can see from the image that the given exterior angle and the missing interior angle are supplementary, or they add up to 180. Knowing this, we can find the missing interior angle:

130 + a = 180

a = 50

So we now know that the missing interior angle is 50 degrees. Since the sum of the interior angles for a triangle is 180 degrees, we can make the equation:

50 + y + y = 180

and solve for y.

50 + y + y = 108

50 + 2y = 180

2y = 130

y = 65

So now we know that y = 65.

I hope you find my answer and explanation to be helpful. Happy studying. :)

Answer:

651.0

Step-by-step explanation:

Answer:

Reflection across the y-axis

Answer:

Population density = [tex]148.22\ \text{people per square kilometer}[/tex]

Step-by-step explanation:

The attached figure shows the dimension of an island.

Population density is equal to total population per unit land area.

Firstly we will find the area of the triangle using Pythagoras theorem as follows :

[tex]H^2=B^2+P^2[/tex]

H is Hypotenuse, B is base and P is perpendicular

[tex]B=\sqrt{H^2-P^2} \\\\B=\sqrt{(18.5)^2-(11.1)^2} \\\\B=14.8\ km[/tex]

Area of triangle is given by :

[tex]A=\dfrac{1}{2}\times b\times P\\\\A=\dfrac{1}{2}\times 14.8\times 11.1\\\\A=82.14\ km^2[/tex]

[tex]\text{Population density}=\dfrac{\text{Total population}}{\text{land area}}\\\\=\dfrac{12175 }{82.14}\\\\=148.22\ \text{people per square kilometer}[/tex]

Hence, the population density is [tex]148.22\ \text{people per square kilometer}[/tex].

Answer:

-11

Step-by-step explanation:

A constant is a term without any algebraic coefficients or simply.. that isn't a variable..

Here, -11 is a constant

Answer:

-11

Step-by-step explanation:

A constant is a number that has no variable such as x, y, z, a, b, c, d or any other terms next to that number. It's just the integer and nothing else. Integers can be positive and negative from 0. The integer -11 in this example is a constant because there is no variable or other terms next to it.

Answer:

2158

Step-by-step explanation:

Answer:

Step-by-step explanation:

54

Answer:

A number line going from negative 2 to positive 2 in increments of 1. There are 4 equal spaces between each number. Point A is halfway between negative 2 and negative 1. Point B is 1 mark to the right of negative 1. Point C is 1 mark to the left of 1. Point D is 1 mark to the left of 2.

Use the drop-down menus to label the points on the number line.

Point A is at

✔ -1 2/4

.

Point B is at

✔ -3/4

.

Point C is at

✔ 3/4

.

Point D is at

✔ 1 3/4

.

Step-by-step explanation:

Branliest PLZ!!!!!!!    <3

Answer:Use the drop-down menus to label the points on the number line.

Point A is at

✔ -1 2/4

.

Point B is at

✔ -3/4

.

Point C is at

✔ 3/4

.

Point D is at

✔ 1 3/4

.

Step-by-step explanation:

also the guy above me is 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 percent right

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Answer: bus stop #2, by 6.5 minutes

Step-by-step explanation: Took the quiz on edge2020

Answer:

bus stop 2 by 6.5 mins

Step-by-step explanation:

have a great day :)))

Answer:

He drove 45.04 miles

Step-by-step explanation:

Answer:

a= 365

b= 700

c=76.5

Step-by-step explanation:

the first one goes by 10, and the arrow is in the middle of 60&70, so it is 365

the second one goes by hundreds, so it is 700

the third one goes by .5, and the third one is 76.5

Answer:

4/5

Step-by-step explanation:

2/1 * 2/5 = 4/5

Answer:

176.15 lbs

Step-by-step explanation:

201.64 - 25.49 = 176.15