Function or no a function

Answer:

1 : 12

Step-by-step explanation:

[tex]\dfrac{1}{4}:3\\\\\\Multiply \ by \ 4\\\\\dfrac{1}{4}*4 : 3*4 = 1 : 12[/tex]

Answer:

1:12

Step-by-step explanation:

Multiply both sides of the ratio by 4 to remove the denominator of 1/4. (1/4x4=1; 3x4=12)

Answer:

The answer is C)

Step-by-step explanation:

Because -3 is between -2 and -4

Answer:

D

Step-by-step explanation:

Domain = all the values that go into a function

The picture of your graphs is very blurry and I can't see the whole of the last graph (D), but from a process of elimination, I think D is the answer as the domains of the other graphs are:

A:   x ≥ 3

B:   x ≥ 5

C:   x ≤ -3

at x = 0, y = 100, y-intercept

meaning at 0 years, at the very beginning of functioning, the satellite had 100 units of power.

at y = 0, x = 10, x-intercept

meaning, at year 10, the satellite had 0 units of power, already out of power.

Answer:

Step-by-step explanation:

a) Pythagorean theorem,

altitude² + base² = hypotenuse²

h²  + (w² - 1)² = (w² + 1)²

                    h² = (w² + 1)² - (w² - 1)²    

{Compare with (a + b)² - (a -b)² = 4ab where a =w² & b = 1}

                   h² = 4*w²*1

                   h² = 4w²

                   [tex]h=\sqrt{4w^{2}} = \sqrt{2*2*w*w} \\\\\\h = 2w[/tex]

b) Area of triangle = [tex]\frac{1}{2}b*h[/tex]

                               [tex]=\dfrac{1}{2}*(w^{2}-1) *2w\\\\= (w^{2}-1)*w = w^{2}*w - 1*w\\\\=w^{3}-w[/tex]

c) w =2

Area of triangle = 3w = 3*2 = 6

Answer:

Step-by-step explanation:   2003160

If you add them up, you get 2003160.

So the lakes holds 2003160 LITERS of water to the current date.

Please mark Brainliest I need it

Answer:

2,003,160 liters of water

Step-by-step explanation:

We see the key word greater, we know to add.

1,620,757 + 382,403

= 2,003,160

The lake currently holds 2,003,160 liters of water.

Hope this helps, please mark brainliest if possible :)

Answer:

45

Step-by-step explanation:

x,30,24,16

since,they are in proportion

x/30=24/16

16x=720

x=720÷16

x=45

therefore the value of x is 45.

Fish = F

F + F(.2) = t

I think this is right

Answer:

[tex]\frac{95}{8}[/tex] or [tex]11\frac{7}{8}[/tex] or 11.875 pints of ice cream.

Step-by-step explanation:

1 guest will be served 5/8

19 guests will be served (5/8) * 19 = 95/8 pints of ice cream.

Answer:

1/8

Step-by-step explanation:

To make any decimal into a fraction, it will need to be over 1. 0.125 needs to be put over 1.

= 0.125 / 1

Multiply the fraction by 8/8 to turn 0.125 into a whole number.

= 1 / 8

Answer:

E and G

Step-by-step explanation:

Answer:

-2k^2+3k-2

Step-by-step explanation:

(4k^2– 12) – (6k^2– 3k – 10)

Expanding using distributive prop.

4k^2-12-6k^2+3k+10

-2k^2+3k-2

The matrix equation has no solution because the same matrix of equal magnitude and opposite in nature is been added to it.

Given to us

A + [11   17   -8    13] = [0   0   0   0]

We know that the given matrix will give values as zero if the same matrix is been deducted from it, therefore,

A + [11   17   -8    13] = [0   0   0   0]

A = [0   0   0   0] - [11   17   -8    13]

A = [-11   -17   +8    -13]

Thus, the matrix is equal to [-11   -17   +8    -13].

The matrix equation has no solution because the same matrix of equal magnitude and opposite in nature is been added to it, therefore, [11   17   -8    13] is been added to it.

Thus, the sum of the two matrices has no solution.

Learn more about Matrices:

https://brainly.com/question/11367104

The matrix equation has no solution because the same matrix of equal magnitude and opposite in nature is been added to it.

Line plots are used to display data elements using markers

The total growth, in inches, of Isabella's plant is [tex]4\frac{1}2[/tex] inches

From the line plot, the total growth can be represented as:

[tex]Total = \frac 18 * 4 + \frac 28 * 2 + \frac 38 * 3 + \frac 48 * 1 + \frac 58 * 3[/tex]

Evaluate the products

[tex]Total = \frac 48+ \frac 48 + \frac 98 + \frac 48 + \frac {15}8[/tex]

Evaluate the sum

[tex]Total = \frac{4+4+9+4+15}8[/tex]

Evaluate the numerator

[tex]Total = \frac{36}8[/tex]

Evaluate the quotient

[tex]Total = 4\frac{1}2[/tex]

Hence, the total growth, in inches, of Isabella's plant is [tex]4\frac{1}2[/tex] inches

Read more about line plots at:

https://brainly.com/question/15853311

Answer:

option 1

Step-by-step explanation:

sin 60 = x/50

√3/2 = x/50

x = 25√3

[tex]\qquad \qquad\huge \underline{\boxed{\sf ᴀɴsweʀ}}[/tex]

Let's solve ~

[tex]\qquad \sf  \dashrightarrow \: {x}^{2} - 21 = 79[/tex]

[tex]\qquad \sf  \dashrightarrow \: {x}^{2} = 79 + 21[/tex]

[tex]\qquad \sf  \dashrightarrow \: x {}^{2} = 100 [/tex]

[tex]\qquad \sf  \dashrightarrow \: x = \pm\sqrt{100} [/tex]

[tex]\qquad \sf  \dashrightarrow \: x = \pm \sqrt{10 \times 10} [/tex]

[tex]\qquad \sf  \dashrightarrow \: x = \pm10[/tex]

Answer:

given below

Step-by-step explanation:

Valid:

Invalid:

Answer:

85 adult tickets were sold.

Step-by-step explanation:

Let's let A = number of adult tickets sold and s = number of student tickets sold. Now, the number of adult tickets and student tickets sold added equal 340 tickets.

Therefore, A + s = 340

We also know that number of student tickets sold was three times the number of adult tickets sold.

Therefore, s = 3A

We can now substitute s with 3A.

A + 3A = 340

4A = 340 (Divide both sides by 4.)

A = 85

Therefore, 85 adult tickets were sold. Please mark brainliest if possible and I hope you get a good grade on your homework.

La razón de cambio de la longitud de la sombra es [tex]\dot x = \frac{15}{7} \,\frac{ft}{s}[/tex].

Sabemos que la longitud de la sombra ([tex]x[/tex]), en pies, aumenta a medida que la niña se aleja del poste. Se puede derivar una expresión para la longitud de la sombra a partir de la semejanza entre dos triángulos rectángulos:

[tex]\frac{x}{5} = \frac{x+y}{12}[/tex]

[tex]\frac{12\cdot x}{5} = x+y[/tex]

[tex]y = \frac{7\cdot x}{5}[/tex] (1)

Donde [tex]y[/tex] es la distancia entre la niña y el poste, en pies.

Luego, obtenemos la expresión de razón de cambio por cálculo diferencial:

[tex]\dot x = \frac{5\cdot \dot y}{7}[/tex] (2)

Donde:

Si sabemos que [tex]\dot y = 3\,\frac{ft}{s}[/tex], entonces por (2) tenemos que la razón de cambio de la longitud de la sombra es [tex]\dot x = \frac{15}{7} \,\frac{ft}{s}[/tex]. [tex]\blacksquare[/tex]

Para aprender más sobre problemas de razón de cambio, invitamos cordialmente a ver esta pregunta verificada: https://brainly.com/question/11606037

Answer:

y=3/2x+15

Step-by-step explanation:

Hi there!

We are given that a line passes through the point (-4,9) and has a slope of 3/2

We want to write the equation of this line in slope-intercept form

Slope-intercept form is  y=mx+b, where m is the slope and b is the y intercept

Since we are given the slope of the line already (3/2), we can plug it in as m into the equation.

y=3/2x+b

Now we must solve for b

As the equation passes through the point (-4, 9), it means that the point is a solution to the equation, meaning that it will result in a true statement when you plug its values into the equation

So let's plug the -4 as x and 9 as y into the equation

9=3/2(-4)+b
Multiply

9=-6+b
Add 6 to both sides

15=b
Substitute 15 as b into the equation

y=3/2x+15

Hope this helps!

Here is a link to a similar problem if you would like more practice: https://brainly.com/question/25508767

Step-by-step explanation:

to make it hopefully better visible :

(2a² + b³)(2a² - b³) = 4a² - b³

let's do the multiplication on the left side :

2a²×2a² - 2a²×b³ + 2a²×b³ - b³×b³ =

= 4a⁴ - b⁶

this is NOT the same as the right side of the original equation 4a² - b³

so, this is NOT an identity.

FYI

(a + b) × (a - b) is always a² - b²

Answer:

y = -3x + 5

Step-by-step explanation:

You want it in y = mx + b  form

-5 = -y - 3x

Add y to both sides

-5 + y = -y + y - 3x

-5 + y = -3x

Add 5 to both sides

- 5 + 5 + y = -3x + 5

y = -3x + 5

Answer:

10.5cm

Step-by-step explanation:

3+8+7=18, this means that there are 18 parts assuming each part reprecents 1cm

63/18=3.5

so 1 part=3.5cm

3.5*3=10.5cm

Answer:

b

Step-by-step explanation: