7 times the sum of a number and 4 is the same as 8 decreased by 3 times a number

Answer:

12

Step-by-step explanation:

[tex]6y \geqslant 72 \\ divide \: both \: side \: by \: 6 \\ y \geqslant \frac{72}{6} \\ y \geqslant 12[/tex]

Answer:

6y > 72

Inequality Form: y > 12

Interval Notation: (12,infinite loop)

I have answered have a good day.

Step-by-step explanation:

Given

3pq (2p - 4q)

= 6p²q - 12pq²

[tex]hope \: it \: will \: help[/tex]

Answer:

hey how r u I'm Aditya from india can we friends?

Step-by-step explanation:

and can u fo llo w me plss

Answer:

86 shots

Step-by-step explanation:

Answer:

Una ecuación de segundo grado completa es algo como:

y = a*x^2 + b*x + c

Un problema tipico que usa ecuaciones de este tipo es algo que nos haga multiplicar dos términos como h*(x + k) y n*(x + j)

Donde h, k, n, y j son números reales.

Entonces planteemos el siguiente caso.

"Juan tiene una tabla rectangular, de tal forma que su largo es (x + 3cm), y el ancho es igual a dos veces su largo, si sabemos que el área de esta tabla es 95 cm^2 ¿cuál es el valor de x?"

Acá hay que recordar que para un rectángulo de largo L y ancho W, el área es:

A = L*W

En este caso tendremos:

L = (x + 3cm)

Y el ancho es dos veces eso, entonces:

W = 2*(x + 3cm)

Entonces el area de esta tabla se escribirá como:

A = (x + 3cm)*2*(x + 3cm)

Ahora solo tenemos que expandir eso:

A = 2*x^2 + 12cm*x + 18cm^2

Ahora sabemos que el area de esta tabla es 95cm^2

Entonces:

95cm^2 =  2*x^2 + 12cm*x + 18cm^2

0 = 2*x^2 + 12cm*x + (18cm^2 - 95cm^2)

0 = 2*x^2 + 12cm*x - 77 cm^2

Esta es una ecuación de segundo grado completa, la cual deberiamos resolver para encontrar el valor de x como se nos pide en el problema.

Answer:

3.) it is a quadratic

4.) it is an absolute function

Step-by-step explanation:

3 has an exponent

4 has absolute values in it

Answer:

2.4 cm.

Step-by-step explanation:

1. Find Midpoint of segment AB which is 10/2 = 5.

2. Find Midpoint of segment BC which is 5.2/2 = 2.6.

3. Subtract both midpoints 5 - 2.6 = 2.4.

That's pretty much it, Hope it helps!

Answer:

V= 240 sq cm

A= 268 sq cm

Step-by-step explanation:

V= l * w * h

V= 10 * 8 * 3

V= 240 sq cm

A=2(wl+hl+hw)

A=2(8*10 + 3*10 + 3*8)

A= 268 sq cm

Answer:

AA (similar)

Step-by-step explanation:

<Q = <U

64 + 37 = 101°

180 - 101 = 79°

<S is a reflexive angle, congruent on both sides.

AA similarity

Answer:

$48.0

Step-by-step explanation:

Given data

Total cost of DVDs= $24.99+ $19.99

=$44.98

Let us compute the amount of the tax 6.75%

= 6.75/100* 44.98

=0.0675* 44.98

=$3.03615

The total cost including the tax is

=44.98+3.03615

=$48.0

Answer:

Kindly check explanation

Step-by-step explanation:

From the question :

Duration, time, t = 3 minutes, 27 seconds = (3 * 60) + 27 = 207 seconds

Average speed = 15 km/h = (15*1000) /3600 = 4.16666 m/s

Let distance = x

Recall:

Speed = distance / time

Distance = speed * time

x ≤ (speed * time)

x ≤ (4.16666 * 207)

x ≤ 862.5 m

x ≤ (862.5 / 1000) km

x ≤ 0.862.5 km

Answer:

The true statement of the area of the piece of land is;

(C) It is between 0.0007 and 0.007 square mile

Step-by-step explanation:

Using scientific notation, we have the value of a measurement presented as follows;

c × 10ⁿ = ce±n

Where;

c = The coefficient number, less than 10

en = 1 × 10⁺ⁿ

e-n = 1 × 10⁻ⁿ

Therefore, the given number, 7.4 e - 4, can be expressed as follows;

7.4 e - 4 = 7.4 × 10⁻⁴ = 0.00074

0.00074 ≈ 0.0007 and we have;

0.0007 < 0.00074 < 0.007

The correct option is therefore that it is between 0.0007 and 0.007 square mile

The statement that is true of the area of the piece of land is that it is between 0.000074 and 0.00074

The standard form for writing scientific notation is given as A * 10^n

Writing this as a standard value will give:

Hence the statement that is true of the area of the piece of land is that it is between 0.000074 and 0.00074

Learn more on scientific notation here: https://brainly.com/question/13526198

Answer:

7.5m²

Step-by-step explanation:

A=½b×l

A=½×7.5×2

A=7.5m²

Answer:

The correct answer is (a) 4a + 22b

Answer:

B) n ≥ -20

Step-by-step explanation:

n/4 ≥ -5

n ≥ -20

Answer:

thanks

Step-by-step explanation:

The Nucleus is considered the "brain" of the cell because houses the cell’s CHROMOSOMES,which are strands made of DNA,which is the code for genetic information.

i just put this here because i already been warned so i might get banned

Answer:

Cost of 1 calculator= 36.30÷ 3

= 12.1

Cost of 10 = 121

Answer:

A + 12 > 21

Step-by-step explanation:

This means the sum of salem and his cousin's age should be bigger than 21 years.

Answer:

12 batches

Step-by-step explanation:

If 3 cup of red paint = 1 batch

Then

36 cups of red paint = 12 batches

36/3 = 12 batches

Answer:

the  length of the piece of rope in meters is 22

Step-by-step explanation:

The computation of the length of the piece of rope in meters is shown below:

= 2πr

= 2 × 3.14 × 3.5m

= 21.98

= 22 meters

Hence, the  length of the piece of rope in meters is 22

Answer:C

Step-by-step explanation:

Answer:

total plane weight with 82gallons fuel is 2424.80 lbs.

Answer:

there's nothing there you have to insert a file

Step-by-step explanation:

Answer: $12

Step-by-step explanation: 840 divided by 70 is $12

Answer:

yes

Step-by-step explanation:

Answer:

yes. 81+51+48 = 180

I hope this helps

Answer:

3a. Angles q,r, and u are 105 degrees.

 b. Angles p,s, and t are 75 degrees.

Step-by-step explanation:

Vertical angles, or angles that are across from each other, are congruent, meaning they are the same angle. When you shrink it, its angles are still the same.

Hope this helps:)

Answer:

Angle A = 49°  Angle B = 41°  Side AB = 30.5

Step-by-step explanation:

Let's work out Angle A and Angle B first. We are given AC and CB, therefore AB must be the hypotenuse as it is the longest side.

AC and CB must be the opposite and adjacent sides, therefore we can use tan(x) = Opposite/Adjacent for working out both Angle A and Angle B.

Angle A:

tan(A) = 23/20  For Angle A, CB (23) is the side opposite the angle and AC (20) is the side in between Angle A and the right angle, also the adjacent side.

A = [tex]tan^{-1}(\frac{23}{20})[/tex]  We do the inverse of tan here.

A = 48.9909131

A = 49°  Rounding to the nearest degree simply means to the nearest whole number.

Angle B:

tan(B) = 20/23  For Angle B, AC (20) is the side opposite the angle and CB (23) is the side in between Angle B and the right angle, also the adjacent side.

B = [tex]tan^{-1}(\frac{20}{23})[/tex]

B = 41.0090869

B = 41°

Side AB:

We can just use Pythagoras' Theorem here to work out AB, but I will also use trigonometry to show you how you can use both formulas. When I use trigonometry, I will only be using Angle A as an example.

Pythagoras' Theorem: [tex]a^{2} + b^{2} = c^{2}[/tex]

AC = 20 = a

CB = 23 = b

[tex]20^{2} + 23^{2} = c^{2}[/tex]

929 = [tex]c^{2}[/tex]

c = [tex]\sqrt{929}[/tex]

c = 30.47950131

c = 30.5  Rounding to the nearest 10th simply means rounding to 1 decimal place.

Trigonometry: SOHCAHTOA

Angle A = 49°

AC = 20  I will use AC as our adjacent side instead of CB. They will both give us the same answer anyways.

AB will always be the hypotenuse in the given right-angled triangle.

cos(x) = Adjacent/Hypotenuse

cos(49) = 20/AB

ABcos(49) = 20  Here we multiply by AB, our hypotenuse.

AB = 20/cos(49)  Now we divide by cos(49)

AB = 30.48506173  As you can see here, this answer is different from the Pythagoras' Theorem one because we rounded our angle values, meaning out angle values aren't exact! Instead, use Pythagoras' Theorem here for more accurate results instead of Trigonometry.

AB = 30.5  They still give us the same answer in the end!

I hope this helps you!! ^-^

Answer:

A.) Angle CAD

Step-by-step explanation:

Hope this helps! :)

Answer:

Step-by-step explanation:

A wall is rectangular in shape. The area of a shape is used to determine the amount of space taken up by a 2Dimensional or surface.

So, the area of the wall will help determine the amount of space the paint will take.