4x – y if x = – 2 and y = 3
Evaluate

Answer:

5 times

Step-by-step explanation:

Given that,

The population of town A is 4×10⁴

The population of town B is 2×10⁵

Let the population of town is B is x times of the town A. So,

[tex]A\times x=B\\\\x=\dfrac{B}{A}\\\\x=\dfrac{2\times 10^5}{4\times 10^4}\\\\x=5[/tex]

It means that the population of town B is 5 times of the population of town  A.

Answer:

5 times you heard the man

Step-by-step explanation:

Answer:

77

Step-by-step explanation:

Add all the numbers up, then divide it by how many numbers there are in the set.

Answer: 10 1/2 miles

1 hour= 5 miles

2 1/2 hrs = 10 1/2 miles

Answer:

2x^2 +5x-3

Step-by-step explanation:

(x+3)(2x-1)

FOIL

first :(x*2x) = 2x^2

outer: x*-1 = -x

inner: 3*2x = 6x

last: -1 *3 = -3

Add together

2x^2 -x+6x-3

Combine like terms

2x^2 +5x-3

Answer:

The third option. 2x^2+5x-3.

Step-by-step explanation:

The product means to multiply them.

(x+3)(2x-1)

You don't multiply x to 2x and 3 and -1.

That is not the product and say it is 2x^2-3.

You have to multiply x to both 2x and -1.

You don't only multiply the terms that correspond with each other.

You have to do x times 2x and x times -1.

2x times x is 2x squared or 2x^2.

x times -1 is -x.

So you have 2x^2-x.

Leave that there for now.

Now, you have to multiply 3 with 2x and -1.

3 times 2x is 6x and 3 times -1 is -3.

Then you have 6x-3.

Bring back the 2x^2-x with the 6x-3.

Now you have 2x^2-x+6x-3.

You always have to simplify.

Combine like terms. -x plus 6x is 5x.

Therefore, you are left with 2x^2+5x-3.

That is the product of (x+3)(2x-1).

you can check by dividing the polynomials as well.

I hope this clarifies things!

Answer:

Step-by-step explanation:

Jim though this:eight thousandths looks like this .0008

Lou thought this:eight hundredths looks like this .008

So that means Jim Would have been correct in picking the Larger number.

Answer:

Jim is correct

Step-by-step explanation:

Jim is correct because 8 hundreths as a decimal can be written as 0.08. 8 thousanths as a decimal is 0.008. We can see that even though thousandths seems bigger than hundreths, in decimals, the higher it seems, the lower it actually is(0.08>0.008)

Answer: 5

Step-by-step explanation:

21 is 3 times greater than the number 7.

So, we will divide 15 by the number 3.

15 / 3 = 5

We get the answer as 5.

Answer:

Step-by-step explanation:

Answer:

1/4

12/48 simplifies to 1/4 .

Answer:

x=14:^$^$^$$&$&6373££33€¥÷€$^^%;";",,"¥4¥£=£÷£3883393992

Answer:

  I. APY = (1 +r/n)^n -1

  II. 4.0474%

  III. 4.0487%

  IV. 4.0398%

  V. Account B

Step-by-step explanation:

I. The expression is ...

  APY = (1 +r/n)^n -1

__

II–IV. See the attached. (When calculations are tedious and repetitive, a spreadsheet is helpful.)

__

V. The account compounded quarterly has the highest APY, account B.

Answer:

x = 1

Step-by-step explanation:

first you distribute :  3(x + 1) -> 3x  -2(x - 1) -> -2x + 2

next you combine like terms : 2 + 6 = 8

3x + 3 = -2x + 8

subtract 3 from both sides : 3x = -2x + 5

add 2x to both sides : 5x = 5

divide both sides by 5 and you get :  x = 1

Hope this helps :")

Answer:

C

Step-by-step explanation:

We know that the volume of a cylinder is given by the formula:

[tex]V=\pi r^2h[/tex]

And we want to find the expression that represents the volume when the radius is (x+8) and the height is (2x+3).

So, let's substitute (x+8) for r and (2x+3) for h. This yields:

[tex]V=\pi (x+8)^2(2x+3)[/tex]

Let's expand.

Expand the square term first. We can use the perfect square trinomial pattern, which is:

[tex](a+b)^2=a^2+2ab+b^2[/tex]

Here, our a is x and b is 8. So:

[tex]V=\pi (x^2+2(x)(8)+(8)^2)(2x+3)[/tex]

Simplify:

[tex]V=\pi (x^2+16x+64)(2x+3)[/tex]

Expand further. This time, we will use the distribute property. So:

[tex]V=\pi ((x^2+16x+64)(2x)+(x^2+16x+64)(3))[/tex]

Multiply:

[tex]V=\pi((2x^3+32x^2+128x)+(3x^2+48x+192))[/tex]

Combine like terms:

[tex]V=\pi((2x^3)+(32x^2+3x^2)+(128x+48x)+(192))[/tex]

Add:

[tex]V=\pi(2x^3+35x^2+176x+192)[/tex]

Distribute the π:

[tex]V=2\pi x^3+35\pi x^2+176\pi x+192\pi[/tex]

So, our answer is C.

And we're done!

Answer:

C

Step-by-step explanation:

V=πr²h

V=π(x^2+64)h

V=π(x^2+64)(2x+3)

V=π(2x^3+3x^2+128x+192)

C: 2πx³+ 35πx²+176πx+192π

Answer:

the square root of -1/4 is irrational

Answer:

9.0×10^3K/moles

Step-by-step explanation:

ionization energy of these electrons = Energy of photons - kinetic energy of the electrons

Given

Kinetic energy of electron = 1.34×10^5

Energy of photons = 1.43 x 105 kJ/mole

Required

Ionization energy of these electrons

Ionization energy of these electrons = 1.43×10^5-1.34×10^5

ionization energy of these electrons = 0.09×10^5 kJ/mol

= 9.0 × 10^3 kJ/mol

Hence the ionization energy of these electrons is 9.0×10^3K/moles

Answer:

y = 2x + 1

Step-by-step explanation:

Slope formula is y2-y1/x2-x1

-5-3/-3-1

-8/-4

2

Thus, the slope is 2 (m = 2)

Find the y intercept.

y = 2x + b

3 = 2(1) + b

3 = 2 + b

1 = b

y = 2x + 1

Best of Luck!

Answer:

4

Step-by-step explanation:

The Significant Figures are 9 8 0 7

Answer:

Quadrants I and II.

O: (-2, 2)

N: (-2, 4)

M: (1, 4)

P: (1, 2)

Step-by-step explanation:

When rotating about the origin 90 degrees in a counterclockwise direction, focus on the coordinates of one point on the preimage at a time. So, the x-coordinate on the image will be the opposite of the y-coordinate of the preimage, and the y coordinate of the image will be the x-coordinate of the preimage. That sounds complicated so here is an example from the problem.

O is a point on the preimage. Its coordinates are (2, 2). To find the x-coordinate, take the opposite of the image's y-coordinate. The y-coordinate is 2, so it will be a -2 x-coordinate on the image. To find the y-coordinate on the image, take the x-coordinate of the preimage (O). The x-coordinate of O is 2, so the y-coordinate of the image will be 2. Combine those together and after a 90 degree counterclockwise rotation, you get a point of (-2, 2)

Answer:

Step-by-step explanation:

when rotate counterclock wise 90 degrees:

(x,y)⇒(-y,x)

points                            (2,2)        (4,2)          (2,-1)          (4,-1)

CCW90 degrees           (-2,2)      (-2,4)         (1,2)           (1,4)

CCW 270 degrees        (2,-2)       (2,-4)        (-1,-2)         (-1,-4)

(x,y)⇒(y,-x)   the shape will be in quadrant 3 and 4

Answer:

Angle is a point view. side view, front view, back view and simmangu sunggu

Answer: C: (-1,-2)

Step-by-step explanation:

Just answered it

Answer:

2.3,2.03,2.003

Step-by-step explanation:

i need points

Answer:

no, no, yes, no

Step-by-step explanation:

Starting with <EDG=43

You need to find <CDF. AB is a straight line, making it 180.

ADC=90 and FDB=20

180-90-20 to get CDF

70=CDF 70 doesnt equal 43

CDF and EDG are not congruent.

Find EDA. GC=180 ADC= 90 EDG=45

180-90-45

45

you can also see that ADC and EDG are adjacent angles and if you look, GDA makes up a right angle which is 90 so you could subtract the 45 from that to get 45 as well.

ADB=180

45+133=178

no

We already figured out that CDF=70

70+20=90 so yes.

BDG is obviously a right angle but looks can be deceiving so math wise

AEG is 90 and AB is 180

180-90=90

so BDG is 90

20+90+43=180

155=180

no

Answer:

23*3.324 is 76.452 yes

Step-by-step explanation:

Answer:

[tex]d=860.23\ m[/tex]

[tex]\theta=35.54^\circ[/tex]

Step-by-step explanation:

Rectangles

The sides of the rectangular fields are 500 meters and 700 meters. The diagonal of the rectangle can be calculated as the hypotenuse of the right triangle formed by the two sides, thus:

[tex]d=\sqrt{x^2+y^2}[/tex]

Where x and y are the lengths of the sides. For the rectangular field, we have:

[tex]d=\sqrt{500^2+700^2}=\sqrt{250000+490000}=\sqrt{740000}=860.23\ m[/tex]

The angle between the diagonal and the longest side can be calculated using trigonometry. Please refer to the image attached.

[tex]\displaystyle \cos\theta=\frac{x}{d}=\frac{700}{869.23}=0.8137[/tex]

[tex]\boxed{\theta=35.54^\circ}[/tex]

Answer:

37

Step-by-step explanation:

Greetings! Hope this helps!

Answer

37 degree's

Have a good day!

_______________

A brainliest would help tons! :D

Answer:

11

Step-by-step explanation:

W^7/W^-2=W^7+2=W^9 ( when divide subtract the exponent (7-(-2))

W^?/W² = W^?-2

W^9=W^(?-2)

9=?-2

?=11

W^7/W^-2 = W^11/W²

Answer:

11

Step-by-step explanation:

totally didnt look at someone elses answer ;)