I’m being timed!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

8x² + 5x - 2

Step-by-step explanation:

Given

3x² - 4x + 8 + 5x² + 9x - 10 ← collect like terms

= (3x² + 5x²) + (- 4x + 9x) + (8 - 10)

= 8x² + 5x - 2

Answer:

6

Step-by-step explanation:

since he has 2 pounds of ground beef and we are dividing these pounds into 8th's he would have a total of 16/8 meaning 8/8 for each pound of ground beef.

and since he used 5/8 for each of the two huge meat balls that means he used a total of 10/8 in total leaving 6/8.

[tex]16/8 = 8/8 + 8/8\\[/tex]

[tex]5/8 + 5/8 = 10/8\\16/8-10/8=6/8[/tex]

so since he is making 1/8 pound meatballs and he has 6/8 pounds of ground beef left he can make 6 of the 1/8 pound meatballs

Answer:

20

Step-by-step explanation:

(5x4x3x2x1)÷(3x2x1)=

120÷6=

20

Answer:

P ,Q ,R

Step-by-step explanation:

Three or more points that doesn't lie on a straight lie are Non collinear points

Answer:

First number is 20, second is 25

Step-by-step explanation:

x + y = 5 + 2x = 45

solve for x first

5 + 2x = 45

x = 20

then solve for y

20 + y = 45

y = 25

hope this helps

Answer:

[tex]height = 4[/tex]

Step-by-step explanation:

By the Pythagorean Theorem, we know:

[tex]a^2 + b^2 = c^2[/tex]

Where [tex]c[/tex] is the slope.

Here we see the following:

[tex]a = 3\\b = ???\\c = 5[/tex]

Plug in the numbers:

[tex]3^2 + b^2 = 5^2\\9 + b^2 = 25\\b^2 = 16\\b = \sqrt{16}\\ b = 4[/tex]

Answer:

a) 2 galones y 1500 litros

Step-by-step explanation:

La fórmula para el área de la superficie lateral de una pirámide hexagonal regular =

A = 3a × √ (h² + 3a² / 4)

Donde a = longitud lateral o borde de la base de la pirámide hexagonal = 10 cm

h = altura de la pirámide hexagonal = 30cm.

Resolviendo para 1 molde

A = 3 × 10 × √ (30² + 3 × 10² / 4)

A = 936,7497 cm²

Esto significa que Fabricio tiene que cubrir 936.7497cm² de 1 molde con barniz.

En la pregunta se nos dice que:

1 galón de barniz rinde o cubre 45m²

Por lo tanto, convertimos el área de la superficie de 1 molde a m²

1 cm² = 0,0001m²

936.7497cm² =

936.7497cm² × 0.0001m² / 1 cm²

= 0.09367497m²

Por tanto, si

45m² = 1 galón de barniz

0.09367497m² = x galón

x galón = 0.09367497m² / 45 m²

= 0.002081666 galones

Esto significa que 0,002081666 galones barnizarán 1 molde.

Recuerda, en la pregunta, nos dicen que Fabricio está barnizando 1000 moldes

Si. 1 molde = 0.002081666 galón de barniz

1000 moldes

1000 × 0,002081666

= 2.081666 galones de barniz

Aproximadamente = 2 galones de barniz.

De ahí la capacidad en litros de cada molde = 1500 litros.

Answer:

Los resultados están debajo.

Step-by-step explanation:

Dada la siguiente información:

y = 20.000 + 1.500x

Siendo:

y= costo total

x= kilometros recorridos

Entonces, si recorrio 20km:

y= 20.000 + 1.500*20

y= $50.000

Ahora, si pago $140.000, cuantos km recorrio:

140.000= 20.000 + 1.500*x

120.000/1.500= x

x= 80km

Answer:

1/x-1

Step-by-step explanation:

Answer:

The answer is 12.

Step-by-step explanation:

6 is 3/4 of 8 and 18 is 3/4 of 24. All you do is divide 16 by 4 which equals 4. Then multiple that answer by 3 which gives you 12.

Answer:

The answer is 12

Step-by-step explanation:

Oh boy, here we go again

First we must convert  1 2/3 to an improper fraction.  By doing this, we get 5/3  (3/3 + 2/3)

So now we have 273 /  5/3

To divide this easier we can do something that when I learned it was called (keep, change, flip)  which basically means keep the first fraction, change the sign from division to multiplication, and flip the second fraction

This now turns into:  273/1 * 3/5

Combine 273 and 3/5

273⋅3/5

Multiply 273

by 3

819/5

is your answer

Answer:

Irrational numbers are contradictory, even when combined with a rational number.

Step-by-step explanation:

Since the assumption that the sum of a rational and irrational number is rational leads to a contradiction, the sum must be irrational.

Answer:

[tex]b=20[/tex]

Step-by-step explanation:

So we have the equation:

[tex]b=(\sqrt{4})^2+4^2[/tex]

The square root and the square cancels out for the first term.

And 4 squared is 16.

So:

[tex]b=4+16[/tex]

Add:

[tex]b=20[/tex]

Answer: 20

Solution Steps

Immersive Reader

sqrt4^2​+42

Calculate 4 to the power of 2 and get 16.

sqrt16+4^2≈20

Calculate the square root of 16 and get 4.

4+4^2≈20

Calculate 4 to the power of 2 and get 16.

4+16=20

Add 4 and 16 to get 20.

20

Answer:

10.5

Step-by-step explanation:

Ordering the set of data by ascending order gives us the set {6, 7, 8, 9, 10, 11, 12, 15, 16, 17}. Since there are 10 terms and the median is the middle term, we know that the median will be the average of the 5th and 6th terms, which are 10 and 11. The average of 10 and 11 is (10 + 11) / 2 = 10.5.

Answer:

2

Step-by-step explanation:

-20 divied by -10 is two

2 negavties make a positive

Answer:

2

Step-by-step explanation:

When both numbers are negative it canals out so the answer is positive.

Answer:

[tex]5x^2 + 10[/tex]

Step-by-step explanation:

[tex]4x^2 + x^2 = 5x^2\\7x + (-7x = 0\\-4 + 14 = 10[/tex]

Step-by-step explanation:

1/3(9x+3)=3x+1 multiply inside the parenthesis with 1/3

(9x+3)/3 = 3x + 1 multiply both sides of the equation by 3

9x + 3 = 9x + 3 add like terms

0 = 0 which means there are infinitely many solutions for this equation therefore infinitely many values for x

Answer:

x is any number

infinite solutions

Step-by-step explanation:

1/3(9x+3)=3x+1

Distribute

3x+1 = 3x+1

Subtract 3x from each side

1=1

Since this is always true, x can be any value

Answer:

b. Cubic

Exponential and logarithmic graphs are the similar, logarithmic graphs just reflect exponential graphs. Cubic root is like the one shown, just horizontal.

Answer: a. 8.25t

Step-by-step explanation:

From the question, we are informed that a movie theater charges $8.25 per ticket. The expression that models the cost of buying t tickets is gotten when we multiply $8.25 by t. This will be:

= 8.25 × t

= 8.25t

Therefore, expression that models the cost of buying t tickets is 8.25t. The correct answer is option A.

Answer: Neither Sneha nor the credit card company owes money.

Answer:

The answer is below

Step-by-step explanation:

The question is not complete, the correct question is:

The length of a rectangular room is 9 less than four times the width,  w , of the room. What expression represents the area of the room? How can the expression be rewritten as a polynomial in standard form

Answer: A rectangle is a polygon that has for sides in which the opposite sides are equal. All angles in a rectangle are equal and the diagonals bisect each other. The area of a rectangle is given by the formula:

Area = Length × Width

Given that The length is 9 less than four times the width and the width is w, hence, the length is given as:

Area = 4w² - 9w

A polynomial is in standard if its terms are arranged from highest degree to lowest degree.

The polynomial in standard form is: 4w² - 9w

Answer:

15

Step-by-step explanation:

its in the center so u devide it by 2

Answer:

AE = 15

Step-by-step explanation:

AB = 30

E is the midpoint of AB

AE + EB = AB

AE = EB

2AE = AB

2AE = 30

Divide by 2

AE = 15

Answer:

2 bills and 1 coin

Step-by-step explanation:

Given

[tex]Lite = \$3.50[/tex]

Required

Fewest number of bills and coins she can get receive as change

FIrst, we need to calculate her change

Change = Amount Paid - Lite

[tex]Change = \$10 - \$3.5[/tex]

[tex]Change = \$6.5[/tex]

Next is to split the change to bills and coins

[tex]\$6.5 = \$5\ bill + \$1\ bill + 50 cents[/tex]

The $5 and $1 makes 2 bills while the 50 cents makes 1 coin.

Hence, the minimum she could receive is  2 dollar bills and 1 coin as change

Answer:

Step-by-step explanation:

let us assume that the amount in her accounts compounds annually

Given data

principal p= $160

interest rate r= 3%= 0.03

time t= 30 years

At the end of 30 years the money she will will have can be expressed as

A= P(1+r)^t

A= 160(1+0.03)^30

A= 160(1.03)^30

A= 160*2.42726

A= $388.36

in 30 years she will have $388.36

Simply the equation -2(-3 + 2z)

6  −  4z

Answer:

3/4.

Step-by-step explanation:

5/16 + 7/16

= (5+7)/16

= 12/16

= 3/4.

Answer:

-1

Step-by-step explanation

1/2-3/2 = -1

Answer:

-1

Step-by-step explanation:

3/2+t=1/2

T=1/2-3/2

T=(1-3)/2

=-2/2

-= - 1