Mathematics High School

What is the product (2x-1)(x+4)

Answers

Answer 1
You're product is:

Do the foil method: FOIL, First Outside Inside Last

2x² +8x - 1x -4

2x² + 7x - 4 is your answer

hope this helps

Related Questions

What is the missing term? (10x-4x^2)-(7x+?)=3x-6x^2

Answers

The answer is 2x^2
Because everything on the right of the minus sign will turn negative

                                                         

The given problem is =

[tex]( 10x-4x^{2} )-(7x+?)=3x-6x^{2}[/tex]

Lets suppose the missing term to be T

So equation becomes:

[tex]10x-4x^{2} -7x-T=3x-6x^{2}[/tex]

[tex]T=10x-4x^{2} -7x-3x+6x^{2}[/tex]

[tex]T=2x^{2}[/tex]

Hence, the missing term is [tex]2x^{2}[/tex]

In the given right triangle, find the missing length to the nearest tenth.

Answers

Use pythagorean's theorem to solve for missing sides of a right triangle.

a^2 + b^2 = c^2

a = 11
b = 17
c = We don't know yet so I'll call it x

11^2 + 17^2 = c^2

121 + 289 = c^2

410 = c^2

c = √410

c = 20.2

Thus, the answer is B.

Hope this helps, and May the Force Be With You!

-Jabba

How many quarters have the same value as 85 dimes?

Answers

if three quarters is 75¢
one dime is 10¢ 
10 x 85 = 850¢
so 850/25 = 34 quarters

Which number can each term of the equation be multiplied by to eliminate the decimals before solving? –m + 0.02 + 2.1m = –1.45 – 4.81m A)0.01
B)0.1
C)10
D)100

Answers

since the 2 in 0.02 is in the hundredths place, you need to multiply that by 100 to eliminate the decimal, then you would need to multiply the other numbers by 100 as well


 Answer is D) 100


The decimals place in a number can be shifted right or left by multiplying or dividing by powers of 10 respectively

The option which gives the number that will multiply each term of the equation -m + 0.02 + 2.1·m = -1.45 - 4.81·m to eliminate the decimals before solving, is option D)

D) 100

Reason:

The given expression is presented as follows;

-m + 0.02 + 2.1·m = -1.45 - 4.81·m

The number that can multiply the terms to eliminate the decimals before solving

Solution;

The number of decimal places to which the coefficient and constant values are given = 2 decimal places

Therefore, to eliminate the decimal places, the decimal point of each term has to be moved two places to the right

To move decimal points to the right x number of places is given by multiplying the number by 10ˣ

Therefore, to move the decimal point two places to the right so as to eliminate the decimal point, by multiplicative property of equality, we have;

10² × (-m + 0.02 + 2.1·m) = 10² × (-1.45 - 4.81·m)

10² = 100, therefore, we have;

100 × (-m + 0.02 + 2.1·m) = 100 × (-1.45 - 4.81·m)

-100·m + 2 + 2,100·m = -145 - 481·m

Therefore, the number the equation, -m + 0.02 + 2.1·m = -1.45 - 4.81·m, is to be multiplied by is 100

Learn more here:

https://brainly.com/question/11909090

In a soccer league the ratio of boys to girls is 4 to 6, there are a total of 50 players in the soccer league how many girls play in the soccer league

Answers

Number of girls = (6 / 10)* 50  = 6*5  = 30

so there are 30 girls in the soccer league.

Answer:

Number of girls = (6 / 10)* 50  = 6*5  = 30

so there are 30 girls in the soccer league.

Step-by-step explanation:

Find the number of ways 4 members from a family of 5 can line up for a photo shoot?

Answers

they can line up 20 different ways

Final answer:

There are 120 different ways for 4 members out of a family of 5 to line up for a photo shoot. This is calculated using permutations, where the order of members matters, and is found by the formula 5! / (5-4)!.

Explanation:

To find the number of ways 4 members from a family of 5 can line up for a photo shoot, we use the concept of permutations since the order of arrangement matters.

In mathematics, the number of permutations for selecting r objects from a set of n objects is given by nPr, which is calculated as n! (n factorial) divided by (n-r)! (the factorial of the difference between n and r).

In this case, we want to arrange 4 out of 5 family members, so n = 5 and r = 4. The permutation formula gives us:

5P4 = 5! / (5-4)! = (5 × 4 × 3 × 2 × 1) / 1 = 120 ways.

Therefore, there are 120 different ways for 4 members out of a family of 5 to line up for a photo shoot.

11) Solve b = g + (t – 1)w for t. *

Answers

b = g + (t-1)w
b-g = (t-1)w
(b-g)/w = t - 1
(b-g)/w + 1 = t
So the last option (as they appear on my laptop)
Solve for t: w(b + g) + 1 = t w(b + g) + 1 = t is equivalent to t = w(b + g) + 1:
Answer:  t = w(b + g) + 1

Solve for t: (b - g)/w = t (b - g)/w = t is equivalent to t = (b - g)/w:
Answer:  t = (b - g)/w

Solve for t: (b + g)/w - 1 = t (b + g)/w - 1 = t is equivalent to t = (b + g)/w - 1: Answer:  t = (b + g)/w - 1
Solve for t: (b + g)/w + 1 = t (b + g)/w + 1 = t is equivalent to t = (b + g)/w + 1: Answer:  t = (b + g)/w + 1

PLEASE ANSWER QUICK

Your local shoe store anticipated giving away 2,500 pairs of shoes in one month, but they only sold 2,215 pairs of shoes. What was the approximate percent error? Show your work to find the percent error. (2 points)

Answers

I solved the problem, answer is 11.4% as 2500-11.4% is 2215.

I’m Still stuck someone help ?!

Answers

angle y = arcos(2.25/6)

= 67.97 degrees

round to 68 degrees

68 is less than 75 so it is not safe to use

Find a Point-Slope equation for a line containing the given point and having the given slope. 1. (-4, 3), m = -12 2. (-15, 6), m = -3 3. (5, -2), m = -7 4. (3, -5), m = -2 5. (6, -2), m = -5 6. (-5, -2), m = -4 7. (7, 0), m = -3 8. (0, 9), m = -5 9. (5, 1), m = -10

Answers

All you have to do is input the x, y, and m values.

[tex]y-y_{1}=m(x-x_{1})[/tex]

1) y - 3 = -12(x +4)

2) y - 6 = -3(x + 15)

3) y + 2 = -7(x - 5)

4) y + 5 = -2(x - 3)

5) y + 2 = -5(x - 6)

6) y + 2 = -4(x + 5)

7) y - 0 = -3(x - 7)

8) y - 9 = -5(x - 0)

9) y - 1 = -10(x - 5)

(3a) ^ 3 =
This expression without exponents is 3aaa 3 • 3 • 3a 3a3a3a 3 • 3 • 3a 3

Answers

(3a) ^ 3 = 3a x 3a x 3a

answer
3a x 3a x 3a

Answer:  The correct option is (C) [tex]3a.3a.3a.[/tex]

Step-by-step explanation:  We are given to select the correct representation of the following exponent expression :

[tex]E=(3a)^3.[/tex]

We will be using the following property of exponents :

[tex]a^n=a.a.a.~.~.~.~(n~times).[/tex]

So, for the given expression, we get

[tex]E=(3a)^3=3a.3a.3a.[/tex]

Thus, the correct representation is [tex]3a.3a.3a.[/tex]

Option (C) is CORRECT.

Belinda wants to buy 3 large boxes of oranges each box contains 4 bags of oranges and each bag has 10 oranges. How many oranges will she have?

Answers

120! That's a ton of oranges...
120 oranges CAN I GET BRAINLIEST??

Apply THe ORder of operations to simplify the expression
90/ [10+(3² - 4)]
most with best answer gets brainliest please help.

Answers

90/(10+(3^2-4))

PEMDAS
Parentheses, exponents, multiplication, division, addition, subtraction

First, we would solve what's in the parentheses. However, since we have more than one set of parentheses and a value in the parentheses has an exponent, we'll do that first. Then, we can do the addition inside the parentheses.
90/(10+(9-4))
90/(10+(5))
90/(10+15)
90/(25)

Now, we can finish the problem by doing division.
90/25
18/5
3.6

Choose the correct transformation of the graph f(x) = |x + 8| - 3.

The graph of f(x) = x| is shifted to the left 8 units, down 3 units.
The graph of f(x) = x| is shifted to the right 8 units, down 3 units.
The graph of f(x) = x| is shifted to the left 8 units, up 3 units.
The graph of f(x) = x| is shifted to the right 8 units, up 3 units.

Answers

The graph of f(x) = x| is shifted to the left 8 units, down 3 units.

Answer:

A. The graph of f(x) = |x| is shifted to the left 8 units, down 3 units.

Step-by-step explanation:

We are given,

The transformed function is [tex]f(x)=|x+8|-3[/tex].

Now, the parent function is [tex]f(x)=|x|[/tex].

So, we have,

When the parent function is shifted 8 units to the left, the function is [tex]|x+8|[/tex].

This function when translated 3 units downwards gives [tex]f(x)=|x+8|-3[/tex].

Thus, we get,

The parent function f(x)=|x| is translated 8 units to the left and 3 units downwards.

So, option A is correct.

Last month, Margo bought a tree that grows 2.5 cm each day. It was 5cm tall when she bought it and now it is 65 cm tall. Write an equation to determine the number of days Margo has owned the plant.

Answers

2.5*d+5= 65

subtract 65 by 5 and divide by 2.5 to get the number of days shes had the plant :)
65=2.5x+5 I hope you get this one

Leo is roller-blading at a speed of 200 meters per minute. How long will it take him to roller-blade 1 km?

Answers

Find out how many meters are in a km, 1000 meters. 

If it takes Leo a minute to roller blade 200 meters, 

1000/200 => 5 

5x1 minute= 5 minutes

It would take Leo 5 minutes to rollerblade 1 kilometer. 

Hope I helped :) 

Answer:

5 min

Step-by-step explanation:

Fatimah works two shifts per day at the pizza shop. During her storefront shift, she sells her pizzas at a rate of 6 pizzas per hour. During her delivery shift, she sells 20 pizzas per night. Write an equation in slope-intercept form that represents the number of pizzas that Fatimah sells in one day if she works x hours.

A-y=1/6x-20
B-y=20x+6
C-y=6x+20
D-y=-6x+20

Answers

C: y = 6x+20 Let's construct our own equation and then see if one of the available options matches. "During her storefront shift, she sells her pizzas at a rate of 6 pizzas per hour" This sounds like the equation should be: 6x Since for every hour (represented by x) she sells 6 pizzas. Now we have: "During her delivery shift, she sells 20 pizzas per night." Notice that there's no mention of anything per hour. If she does the delivery shift, she sells a constant 20 pizzas. So let's modify our equation to: 6x + 20 And since we want it in slope intercept form, let modify a bit further: y = 6x + 20 Now look at the available options and see if there's anything that matches. And there is ... Option C is a perfect match.

Almira earns $50 an hour. How much does she earn in 6 hours? What’s the independent and dependent variables?

Answers

y = 50x

ur independent variable is x....the number of hrs worked
ur dependent variable is y...the total money that she earns

how much does she earn in 6 hrs...
y = 50x
y = 50(6)
y = 300 <== she earns $ 300 in 6 hrs
She earns $300
Independent: amount she gets paid
Dependent: amount of hours she works

Dennis has 30 plums and 42 apricots. he wants to put the fruit in bag so that each bag has the same number of like fruit. how many pieces of fruit can he put in each bag

Answers

Solve.

Mr. Madison picked 80 pieces of fruit on Thursday.Add.

042412+ 4080

A box contains only red yellow and green jelly beans. The number of red jelly beans 4/5 of the number of green jelly beans 3/4 the number of yellow ones. If there are 470 beans in total, what's the probability of picking yellow?

Answers

A jar contains a number of jelly beans of which 58 are red, 78 are green, and the rest ... If the probabilityof choosing a blue jelly bean from this jar at random is , how ... If there are 78 blue jelly beans, then you would have a total of 58 + 78 + 78 ...

Difference of two exponential random variables

Answers

the difference would be subtracting the variables and the dividing the difference by 2

Difference of two exponential random variables



Chloe draws three parallelograms. In each figure, she measures a pair of angles, as shown.

What is a reasonable conjecture for Chloe to make by recognizing a pattern and using inductive reasoning?


In a parallelogram, all angles are supplementary.
In a parallelogram, consecutive angles are supplementary.
In a parallelogram, consecutive angles are congruent.
In a parallelogram, all angles are congruent

Three parallelograms. The angles of the first parallelogram are 35 degrees and 145 degrees. The angles of the second parallelogram are 38 degrees and 142 degrees. The angles of the third parallelogram are 51 degrees and 129 degrees.

Answers

Using inductive reasoning, the best answer from the given shapes is:
B) In a parallelogram, consecutive angles are supplementary.

How many subsets of exactly two elements does a set of five elements have?
A.10
B.26
C.7
D.32

Answers

Answer:

Option: A is the correct answer.

                A. 10

Step-by-step explanation:

We know that the number of subsets of exactly ''r'' elements that is formed by the help of n elements is calculated by:

            [tex]n_C_r[/tex]

Since here we have to chose 2 elements out of the 5 elements in order to form a subset.

Hence, we have:   n=5 and r=2

Hence, the number of subsets are:

[tex]5_C_2=\dfrac{5!}{2!\times (5-2)!}\\\\\\5_C_2=\dfrac{5!}{3!\times 2!}\\\\\\5_C_2=10[/tex]

Hence, the number of subsets are:

                                   10

Answer:

  A. 10

Step-by-step explanation:

Will mark Brainliest!!

Is it possible to remove ten unit cubes from a 3 by 3 by 3 cube made from 27 unit cubes so that the surface area of the remaining solid is the same as the surface area of the original 3 by 3 by 3 cube? In how many different ways can this be done?

Answers

I removed all eight corners, leaving the total area unchanged.

I removed the central cube of the top surface obtaining an increase of the surface area with four units.

I removed one cube from the middle of an edge at the top (any of the four remaining) and I arrived at a figure with ten cubes less then the original one but with the same surface area.

https://nrich.maths.org/787/solution

The cube can be removed from the top middle and from the center if a 3 by 3 by 3 cube is made from 27 unit cubes.

What is surface area?

An object's surface area refers to the overall space that its surfaces occupy.

Given:

The dimensions of the cube are 3 by 3 by 3

Calculate the surface area of the cube as shown below,

Surface area = 6 × side²

Surface area = 6 × 3²

Surface area = 6 × 9

Surface area = 54

I eliminated each of the eight corners, leaving the entire space untouched.

I deleted the top surface's central cube to increase the surface area by four units.

I started with a shape that was ten cubes smaller than the original one but had the same surface area after removing one cube from the center of one of the top edges (any of the four still there).

To know more about the surface area:

brainly.com/question/2696528

#SPJ2

A restaurant offers a​ $12 dinner special that has 77 choices for an​ appetizer, 1010 choices for an​ entrée, and 44 choices for a dessert. how many different meals are available when you select an​ appetizer, an​ entrée, and a​ dessert?

Answers

280 I'm assuming that this question is badly formatted and that the actual number of appetizers is 7, the number of entres is 10, and that there's 4 choices of desserts. So let's take each course by itself. You can choose 1 of 7 appetizers. So we have n = 7 After that, you chose an entre, so the number of possible meals to this point is n = 7 * 10 = 70 Finally, you finish off with a dessert, so the number of meals is: n = 70 * 4 = 280 Therefore the number of possible meals you can have is 280. Note: If the values of 77, 1010 and 44 aren't errors, but are actually correct, then the number of meals is n = 77 * 1010 * 44 = 3421880 But I believe that it's highly unlikely that the numbers in this problem are correct. Just imagine the amount of time it would take for someone to read a menu with over a thousand entres in it. And working in that kitchen would be an absolute nightmare.

How many different outcomes are possible when a nickel,a quarter and a penny are flipped at the came time? Solve by applying the counting principle

Answers

The coin values don't matter. What does is the fact that each can land on either heads or tails. There are 3 coins, so you would do 3!, or 3 factorial. 3! = 3 * 2 * 1, or 6. Thus, there are 6 possible outcomes.

This figure shows the nose cone of a rocket used for launching satellites. The nose cone houses the satellite until the satellite is placed in orbit. What is the volume of the nose cone?

45  cubic feet
60  cubic feet
90  cubic feet
180  cubic feet

Thank you :)

Answers

The formula for the volume of a cone, V, is:

V = [1/3] * π * (radius)^2 * height

Here radius = 6 feet / 2 = 3 feet

Height = 15 feet

V = [1/3] π (3 feet)^2 * 15 feet = 45π feet^3

Answer: 45π feet^3

Answer:

[tex]45\pi\ ft^3[/tex]

Step-by-step explanation:

The volume of the cone can be calculated using formula

[tex]V_{cone}=\dfrac{1}{3}\cdot \pi r^2\cdot H,[/tex]

where [tex]r[/tex] is the radius of the base circle and [tex]H[/tex] is the height of the cone.

Since [tex]r=3\ ft[/tex] (half of the diameter given in the diagram) and [tex]H=15\ ft,[/tex] then

[tex]V_{cone}=\dfrac{1}{3}\cdot \pi \cdot 3^2\cdot 15=45\pi\ ft^3.[/tex]

The table below shows the price of rolls at a bakery. A baker’s dozen includes 13 rolls for the price of a dozen rolls. How much money is saved by buying a baker’s dozen instead of 13 individual rolls?

Answers

Please provide table or else i can't calculate!
Answer: is ) $0.60 cents.

Answer:

0.60

Step-by-step explanation:

hope this helps

Consider the equation 3p – 7 + p = 13. What is the resulting equation after the first step in the solution?

Answers

The first step in solving 3p - 7 + p = 13 would be to simplify 3p - 7 + p so it can be 4p - 7.

So the resulting equation AFTER the first step would be 4p = 13 + 7.
The equation after the first step would be: 4p-7=13
that's all you can do in one step, and it calls combine like terms. On the next step you use the addition property of equality to add 7 on both side and it would gives you 4p=20.
if they asked to solve for P then you can use the division property of equality to divide 4 on both side. 
p=5

please help quick im offering 10pts and brainliest answer

Answers

Answer: The value of x is 30

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

Angle PJK and Angle DJB are vertical angles. They are formed when you cross PD and KB. They are opposite one another. Vertical angles are congruent, so,

(angle PJK) = (angle DJB)
3x-40 = 2x-10
3x-40-2x = 2x-10-2x ... subtract 2x from both sides
x-40 = -10
x-40+40 = -10+40 .... add 40 to both sides
x = 30

Side Note:
if x = 30, then angle PJK is...
angle PJK = 3x-40
angle PJK = 3*x-40
angle PJK = 3*30-40
angle PJK = 90-40
angle PJK = 50 degrees
which is also the measure of angle DJB

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