PLEASEEEE HELPPP MEEE
6 and 7 PLEASE

PLEASEEEE HELPPP MEEE 6 And 7 PLEASE

Answers

Answer 1

Answer:

Question 6

[tex]\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8[/tex]

Question 7

The width is 2x.

Step-by-step explanation:

                                           Question 6)

Expand

[tex](5a+2)(a+4)[/tex]

solving to the expand

[tex](5a+2)(a+4)[/tex]

[tex]\mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd[/tex]

[tex]a=5a,\:b=2,\:c=a,\:d=4[/tex]

so the expression becomes

[tex]=5aa+5a\cdot \:4+2a+2\cdot \:4[/tex]

[tex]=5aa+5\cdot \:4a+2a+2\cdot \:4[/tex]

[tex]=5a^2+20a+2a+8[/tex]

adding similar elements: 20a+2a=22a

[tex]=5a^2+22a+8[/tex]

Hence,

[tex]\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8[/tex]

                                                  Question 7)

Given

[tex]A\:=\:8x^2[/tex][tex]l=4x[/tex]

Using the formula

width = Area/Length

          [tex]=\:\frac{8x^2}{4x}[/tex]

          [tex]=2x[/tex]                  ∵ [tex]\mathrm{Divide\:the\:numbers:}\:\frac{8}{4}=2[/tex]

Therefore, the width is 2x.


Related Questions

(2,8),(7,8) slope of the line​

Answers

Answer:

The slope of line is 0 given points (2,8)(7,8)

Step-by-step explanation:

We need to find slope of line given points (2,8),(7,8)

The formula used to find slope of line is: [tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]

We are given:

[tex]x_1=2, y_1=8, x_2=7 \ and \ y_2=8[/tex]

Finding slope using formula:

[tex]Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{8-8}{7-2}\\Slope=\frac{0}{5}\\Slope=0[/tex]

So, the slope of line is 0

(W+4)(3w-2) please solveeed

Answers

Step-by-step explanation:

[tex]{:}\longrightarrow[/tex][tex]\sf (w+4)(3w-2)[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf w(3w-2)+4 (3w-2)[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 3w^2-2w+12w-8[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 3w^2+10w-8 [/tex]

3w^2 - 2w +12w -8
Simplify to 3w^2+ 10 -8 is the answer

A polyhedron with two parallel congruent faces called bases connected by parallelogram faces is called a...

Answers

Answer:

right prism

Step-by-step explanation:

If the faces are rectangles, then this prism is called a "right prism"

An object travels in a straight line for 1200 m in 20 seconds. What is the average velocity? *

Answers

Answer:

Velocity is 20

Step-by-step explanation:

well you divide the meters traveled by the time it took and you should get your answer.

1. divide 1200 by 20

2 answer should be 60

Find a positive number for which the sum of it and its reciprocal is the smallest​ (least) possible. Let x be the number and let S be the sum of the number and its reciprocal. Write the objective function in terms of x. ​S(x) nothing The interval of interest of the objective function is nothing. ​(Simplify your answer. Type your answer in interval​ notation.) The number is 0.

Answers

Answer:

[tex]S(x) = x + \frac{1}{x}[/tex] --- Objective function

Interval = [tex]\{x:x=1\}[/tex]

Step-by-step explanation:

Given

Represent the number with x

The required sum can be represented as:

[tex]x + \frac{1}{x}[/tex]

Hence, the objective function is:

[tex]S(x) = x + \frac{1}{x}[/tex]

To get the the interval, we start by differentiating w.r.t x

Using first principle, this gives:

[tex]S'(x) = 1 - \frac{1}{x^2}[/tex]

Equate S'(x) to 0 in order to solve for x

[tex]0 = 1 - \frac{1}{x^2}[/tex]

Subtract 1 from both sides

[tex]0 -1 = 1 -1 - \frac{1}{x^2}[/tex]

[tex]-1 = - \frac{1}{x^2}[/tex]

Multiply both sides by -1

[tex]1 = \frac{1}{x^2}[/tex]

Cross Multiply

[tex]x^2 * 1 = 1[/tex]

[tex]x^2 = 1[/tex]

Take positive square root of both sides because x is positive

[tex]\sqrt{x^2} = \sqrt{1[/tex]

[tex]x = 1[/tex]

Representing x using interval notation, we have

Interval = [tex]\{x:x=1\}[/tex]

To get the smallest sum, we substitute 1 for x in [tex]S(x) = x + \frac{1}{x}[/tex]

[tex]S(1) = 1 + \frac{1}{1}[/tex]

[tex]S(1) = 1 + 1[/tex]

[tex]S(1) = 2[/tex]

Hence, the smallest sum is 2

Jordan weighed two buckets of sand for a geology project. The first bucket weighed 26.31 pounds. The other bucket weighed 4.39 pounds. How much do the two buckets of sand weigh all together?

Answers

Answer:

30.7

Step-by-step explanation:

Tje answer is 26,31+4,39=30,7

Use an exponent to write each expression 7/9 x 7/9 x 7/9 x 7/9 x 7/9 x 7/9 x 7/9 x 7/9

Answers

the exponent is 7^9 i forgot what they were called i’m sorry

Which statements are true? Select the five correct answers. StartRoot 1.8 EndRoot < 1.8 StartRoot 1.8 EndRoot greater-than 1 StartRoot 1.8 EndRoot less-than StartRoot 1.9 EndRoot 1.3 less-than StartRoot 1.8 EndRoot less-than 1.4 StartRoot 1.9 EndRoot + StartRoot 1.8 EndRoot greater-than 2 StartRoot 1.9 EndRoot minus StartRoot 1.8 EndRoot greater-than 0.1

Answers

Answer:

A,B,C,D,E

Step-by-step explanation:

Answer:

a b c d e

Step-by-step explanation:

edge 2023

Read this introduction to a magazine article

What will most likely be included in the magazine

article that follows this introduction?

Summertime is near, and the lifeguard's whistle

beckons. It is almost time for the swimming season of

course, with swimming season comes slippery pool

decks and shallow water at the end of some docks And

there are always a few swimmers who overestimate

their skills or underestimate their fatigue

O the benefits of swimming

a technical description of strokes

water-safety suggestions

water-centered vacation destinations

Jp

Answers

Answer:

water-safety suggestions

Explanation:

We can make this conclusion because we notice this addition from the opening lines of the article, "Summertime is near, the lifeguard's whistle  beckons.."

By such Inclusion, the article in other words is saying that since during summertime many people go swimming, it would be best to follow some water-safety suggestions. Therefore, it is most likely to be included in the magazine.

Answer:

water-safety suggestions

Step-by-step explanation:

2r-7 = r + 15,
Find R

Answers

Answer: 22

Step-by-step explanation:

2r - 7 = r + 15

2r - r = 15 + 7

2r = 22

r = 22/2

r = 11

3x + 2 y = 8
5x + 2 y = 12
What is the solution of the system of equations shown above?

Answers

Answer:

x = -3

Step-by-step explanation:

First solve it:

Subtract the x's from both sides

2y = -3x +8

2y = -5x +2

Divide by two

y= -1.5x + 4

y = -2.5x +1

set them equal to each other:

-1.5x +4 = -2.5x +1

Add 2.5 x to both sides

1x +4 = 1

x +4 = 1

subtract 4 from both sides

x = -3

In parallelogram ABCD, if AO = 4x + 12 and OC = 5x – 6 what is the
****length of AC (be careful)

Answers

Answer:

Step-by-step explanation:

The sides of a parallelogram are equal. If O is the midpoint of its diagonal AC, them AO+OC = AC

Given

AO = 4x + 12 and

OC = 5x – 6

Required

AC

AC = 4x+12 + 5x-6

AC = 4x+5x+12-6

AC = 9x+6

Hence the length of AC is 9x+6

Two cases of cans weigh 32 lbs. How much do 7 cases weigh?

Answers

Answer:

112 lbs

Step-by-step explanation:

32/2 = 16 lbs

16*7 lbs = 112 lbs

PLS GIVE BRAINLIEST

Will someone help me please please please please :D

Answers

Answer:

I believe it's C, 0.4 x 0.7

Step-by-step explanation:

It’s 10 by 10 table
So it’s 0.4 x 0.7

i am currently struggling on number 5

Answers

Answer:

7 and 5 also 3 probably I guess

4(x+8)+9(6-2x)
plz explain me step by step plz answer me fast​

Answers

Plz mark me brainliest if it was useful for you !!!
Ans is 86 - 14x
Steps in image :-

Answer:

86-14x

Step-by-step explanation:

4(x+8)+9(6-2x)

4x-18x+54

4x-18x+86

-14x+86

86-14x

what 4p-5(p+6)simplified

Answers

Answer: -p - 30

Step-by-step explanation:



Hi, this is apart of my homework assignment!
The Directions are, “Find the Percent Change. Specify an increase or a decrease.”


13. original amount: 25
amount of increase: 4

This is worth 12 pts!

Answers

Answer:

Percent Change is 16%

The change is increased.

Step-by-step explanation:

The original amount = 25

Amount increase = 4

We need to find percent increase

The formula used is: [tex]\frac{Amount \ increased}{Original \ Amount}*100[/tex]

Putting values in formula

[tex]Percent \ Change = \frac{Amount \ increased}{Original \ Amount}*100\\Percent \ Change =\frac{4}{25}*100\\Percent \ Change =16 \%[/tex]

So, Percent Change is 16%

The change is increased.

What is the answer to x - 10 + -6 + 4

Answers

Answer: x-12

Step-by-step explanation:

Simplify.

x

1

0

6

+

4

x−10−6+4

2 Collect like terms.

x

+

(

1

0

6

+

4

)

x+(−10−6+4)

3 Simplify.

x

1

2

x−12

Given mn, find the value of x.

Answers

Answer: x = 15

we have: (6x - 5)° + (6x + 5)° = 180°

⇔ 12x = 180

⇔ x = 180/12=15

Step-by-step explanation:

omg do u have more i love those

helllllllppppp me please

Answers

Answer:

no

Step-by-step explanation:

Point A is located at (-4, -5). After it is translated, point A' is located at (-4, 1). What was the translation?
6 units down
6 units up
6 units to the left
6 units to the right

Answers

Answer: 6 units up

Step-by-step explanation:

because -5 +6 is 1, we know that the translation is 6 units up

i am dumb pleasle help
The ratio of white socks to brown socks is

Answers

Answer:

3:2 is the ratio.

Step-by-step explanation:

find the value of x of given figure and solve this question step by step plzz help question number D​​

Answers

Answer:

x=15 cm

Step-by-step explanation:

The two triangles in the diagram are:

ABC and BDC

First we have to find the third side (hypotenuse) of BDC so that we can use it to find the value of x.

Hypotenuse is the largest side of a triangle which is usually in front of the right angle.

So in BDC

[tex]Base = BD =10cm\\Hypotenuse = BC = ?\\Perpendicular = CD = 2\sqrt{11}cm[/tex]

Applying Pythagoras theorem:

[tex](Hypotenuse)^2 = (Base)^2 + (Perpendicular)^2\\BC^2 = BD^2 + CD^2\\BC^2 = (10)^2 + (2\sqrt{11})^2\\BC^2 = 100+(2^2 * 11)\\BC^2 = 100+(4*11)\\BC^2 = 100+44\\BC^2 = 144\\\sqrt{BC^2} = \sqrt{144}\\BC = 12cm[/tex]

Solving for triangle ABC

[tex]Base = BC = 12 cm\\Perpendicular = AB = 9 cm\\Hypotenuse = AC = x\\[/tex]

Applying Pythagoras theorem

[tex]AC^2 = BC^2+AB^2\\x^2 = (12)^2 + (9)^2\\x^2 = 144+81\\x^2 = 225\\\sqrt{x^2} = \sqrt{225}\\x = 15cm[/tex]

Hence,

x=15 cm

Addition and Subtraction of Mixed Numbers.

8 7/8+(7 5/6−2 1/3)

Answers

Answer:

14 1/3

Step-by-step explanation:

First, you need to do what's in the parenthesis by finding a common denominator, which is 6. Multiply the 1 by 2 because that is what you multiply 3 by to get 6. You end up with 8 7/8 + 5 3/6. You then have to find the common denominator again, which is 24. Now the problem is 8 21/24 + 5 12/24. you get 13 32/24, which is equal to 14 8/24. Simplify, and you have 14 1/3.

On a loan of $3520.10, if the one-time simple interest was at 7.77% of the principal, how much interest was incurred?

Answers

Answer:

Step-by-step explanation:

3520.10*7.77%= $273.51

How can I isolate the variable f in f/3 + 22 = 17

Answers

Answer:  First You Have To Simplify The Equation From Both Sides Then Thats how You Will Determine what f is. F = -15

Variable [tex]f[/tex] is isolated as [tex]\boldsymbol{f=-15}[/tex] in the expression [tex]\frac{f}{3}+22=17[/tex].

Variable

A variable is a symbol and placeholder for a changing amount or any mathematical object.

An algebraic expression is one that is composed of integer constants, variables, and algebraic operations.

Given expression is [tex]\frac{f}{3}+22=17[/tex]

Transpose [tex]22[/tex] to the right side of the equation.

[tex]\frac{f}{3}=17-22\\\frac{f}{3}=-5[/tex]

[tex]f=-15[/tex]

So, variable [tex]f[/tex] is isolated as [tex]\boldsymbol{f=-15}[/tex]

Find out more information about algebraic expression here:

https://brainly.com/question/2945451?referrer=searchResults

if y⁻⁴ = 256 then y will be

Answers

Answer:

y = 1/4

Step-by-step explanation:

y⁻⁴ = 256

(1/y)⁴ = 256

y⁴ = 1/256

y =  ⁴√1/256

y = 1/4

Thus, The value of y is 1/4

-TheUnknownScientist

b. Were you able to find the solution(s) of each Mathematical sentence? How did
you find the solution(s) of each Mathematical sentence?

pls,,, help me mga tol​

Answers

Answer:

Evaluate each given numbers, expressions or equation.

Check the values or numbers.

Now in order to solve we proceed in the manner

Read the problem Analyze the problem Write the given variables Find the missing variables Write the equation Solve the equation

When finding the slope of a line using a slope triangle, the____
length is divided by the____
length.

Answers

Answer:

rise, run

Step-by-step explanation:

When finding the slope of a line using a slope triangle, the RISE length is divided by the RUN length. (I think. Sometimes the "divided by" makes me confused about which is on top, but I'm pretty sure this is right.)

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