Brainliest question please help please help me now plz

Answer:

x = -1 and x = 5

Step-by-step explanation:

What are the solutions of the equation (x – 3)² + 2(x – 3) -8 = 0? Use u substitution to solve.

(x – 3)² + 2(x – 3) -8 = 0   -------------------------------------------------------(1)

To solve this problem, we will follow the steps below;

let u = x-3

we will replace x-3 by u in the given equation:

(x – 3)² + 2(x – 3) -8 = 0  

u² + 2u -8 = 0  ----------------------------------------------------------- --------------(2)

We will now solve the above quadratic equation

find two numbers such that its product gives -8 and its sum gives 2

The two numbers are 4 and -2

That is; 4×-2 = -8    and 4+(-2) = 2

we will replace 2u by (4u -2u)  in equation (2)

u² + 2u -8 = 0

u² + 4u - 2u -8 = 0

u(u+4) -2(u+4) = 0

(u+4)(u-2) = 0

Either  u + 4 = 0

            u = -4

or

u-2 = 0

u = 2

Either u = -4    or u = 2

But  u = x-3

x = u +3

when u = -4

x = u + 3

x = -4 + 3

x=-1

when u = 2

x = u + 3

x = 2 + 3

x=5

Therefore, x = -1  and  x =5

x

Answer:

x=-1 and x=5

Step-by-step explanation:

Formula for the area of a face of a cube: A = length x width

Let's find the area of one face.

A = 5 x 5

A = 25

Now, let's multiply the area of one face by 6 because a cube has 6 faces.

25 x 6 = 150

A = 150 square centimeters

Hope this helps! :)

Answer:

Let one no. be 1x

other be 4x

x+4x=60

5x=60

x=12

4x=4×12

48

hope it helps :)

Answer:

4

Step-by-step explanation:

Answer:

Step-by-step explanation:

The GCF if 24s^3, 12s^4 and 18s is

24s^3: 2^3 * 3 s s s

12s^4: 2^2 * 3 s *s* s* s

18s: 3^2 * 2 s

3s is the GCF

Answer:

downward

Step-by-step explanation:

The graph is negative which means it is downward sloping

Answer:

16 + 6pi cm

Step-by-step explanation:

We have a square of length 4 cm

A = s^2 = 4^2 = 16

We have 3 semi circles

with radius 2

A semi circle has an area of

1/2 pi r^2 = 1/2 pi (2)^2 = 1/2 (4pi) = 2pi

There are 3 of them

3 * 2 pi = 6pi

Add the areas together for the square and the semicircles

16 + 6pi

Answer:
(6pi + 4) cm^2

Or just A/ first option

Answer:

$9257.5

Step-by-step explanation:

plug into the equation  known variables

Answer:

2257.50

Step-by-step explanation:

B=p(1+r)^t

p= principal amount= $7000 in the saving account

r= interest rate= 15%= .15

t- number of years = 2

B= 7000(1+.15)^2

B= 7000(1.15)^2

B= 7000(1.15)(1.15)

B= 9257.50

She has a total of 927.50 dollars in the account after two years. To find out how much of that is interest we take the Balance and subtract what she invested.

B-p= 9257.50-7000= 2257.50 earned in interest.

Answer: $11,300

Step-by-step explanation:

Given the following :

Buyer Josh's offering price = $452,000

Required deposit rate = 2.5%

Earnest money deposit is the product of :

Offering price × required deposit accepted

$452,000 × 2.5%

$452,000 × 0.025 = $11,300

Answer:

x=6 y=-5

Step-by-step explanation:

6x+5y=11

X=1-y

6x=6(1-y)

6x=6-6y

6-6y+5y=11

6-y=11

y=-5

x=1-y

x=1-(-5)

x=6

so,

x=6

y=-5

Answer:

[tex]y = ( - 5) \\ x = 6[/tex]

Step-by-step explanation:

[tex]x = 1 - y \\ 6x + 5y = 11 \\ \\ \\ 6(1 - y) + 5y = 11 \\ 6 - 6y + 5y = 11 \\ - 6y + 5y = 11 - 6 \\ - y = 5 \\ y = - 5[/tex]

[tex]x = 1 - y \\ x = 1 - ( - 5) \\ x = 1 + 5 \\ x = 6[/tex]

Let's check whether the answer is correct.

[tex]6x + 5y = 11 \\ 6 \times 6 + 5 \times ( - 5) = 11 \\ 36 - 25 = 11 \\ 11 = 11[/tex]

Answer:

The team lost 25 games and won 57.

Step-by-step explanation:

I am going to say what:

w is the number of games won.

As the problem states, l is the number of games lost.

The team won 7 more than twice as many games as it lost.

This means that [tex]w = 2l + 7[/tex]

A baseball team played 82 games.

This means that:

[tex]w + l = 82[/tex]

[tex]2l + 7 + l = 82[/tex]

[tex]3l = 75[/tex]

[tex]l = \frac{75}{3}[/tex]

[tex]l = 25[/tex]

And

[tex]w = 2l + 7 = 2*25 + 7 = 57[/tex]

The team lost 25 games and won 57.

Answer:

A) 5X+6=2X+30

    6 = -3X+ 30 (Subtracted 5X from both sides)

   -24 = -3X (Subtracted 30 from both sides)

     8 = X (divide -3 from both sides)

B) Isolate the variable by dividing each side by factors that don't contain the variable.  x = 8

Given Information:

Principle amount = P = $9,129

Interest rate = r = 4% = 0.05

Period in years = t = 5

Required Information:

Balance in 5 years = ?

Answer:

Balance in 5 years = $11,651.17

Step-by-step explanation:

Using the formula given in the question,

[tex]B = P(1 + r )^{t}[/tex]

Where B is the final amount, P is the initial amount, r is the interest rate and t is the number of years

[tex]B = P(1 + r )^{t}\\\\B = 9,129(1 + 0.05)^{5}\\\\B = 11,651.17[/tex]

Therefore, Zack will have $11,651.17 in 5 years by investing $9,129 in a savings account at 5% annual interest.

Answer:

B) She is incorrect because when substituting 2 for m the result was a false statement

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

She is incorrect because when substituting 2 for m the result was a false statement.

Answer:

A)

Step-by-step explanation:

I did the test and got it correct please mark brainliest. I know it is correct.

HOW DO I START?

Don't worry, you know that this problem only has two small steps, and it's done, it should take less than 45 seconds to complete.

WE ALWAYS WANT TO ISOLATE THE VARIABLE TO FIND Y: MAKE IT BE ALONE!

STEP 1: Subtract 12 from both sides, to start getting 5y alone.

NOW YOU HAVE: 5y = 20

STEP 2: Divide by 5 from both sides, to get the Y fully alone.

NOW YOU HAVE: y = 4

Hopefully this helped!

Answer:

She does not have enough wire.

Step-by-step explanation:

The complete question included a design for her sculpture. It is a circle inscribe in a square and the length of the square is 9 inches. The picture above describe the design.

She has in possession a 5 ft of copper to construct a circle inscribe in a square.

The square is 9 inch length.

Perimeter of the square = 4L

where

L = length

Perimeter of the square = 4 × 9

Perimeter of the square = 36 inches

Circumference of a circle = 2πr

r = diameter/2 = 9/2 = 4.5 inches

Circumference of a circle = 2 × π × 4.5

Circumference of a circle = 2 × 4.5 × 3.14

Circumference of a circle = 9 × 3.14

Circumference of a circle = 28.26 inches.

The sculpture will consume 36 inches for the square and 28.26 inches for the circle. The total length for the sculpture will be 36 + 28.26 = 64.26 inches.

She has 5 ft copper for the sculpture . Let us covert the inches to ft to know if the copper wire is enough.

12 inches = 1 foot

64.26 inches = ?

cross multiply

wire required for the sculpture = 64.26/12

wire required for the sculpture = 5.355 ft

She does not have enough wire.

Answer:

No she does not have enough

Step-by-step explanation:

Answer:

The circumference for circle a is [tex] \\ C = 131.9430[/tex]m.

The circumference for circle b is [tex] \\ C = 175.9240[/tex]m.

The relationship between the radius of a circle and the circumference (the distance around the circle) is constant and is the same for all circles and can be written as [tex] \\ \frac{C}{r} = 2\pi[/tex] or, in a less familiar form, [tex] \\ \frac{r}{C} = \frac{1}{2\pi}[/tex]. The number [tex] \\ \pi[/tex] is constant for all circles and has infinite digits, [tex] \\ \pi = 3.14159265358979....[/tex].

Step-by-step explanation:

The circumference of a circle is given by:

[tex] \\ C = 2*\pi*r[/tex] [1]

Where

[tex] \\ C[/tex] is the circle's circumference.

[tex] \\ r[/tex] is the radius of the circle.

And

[tex] \\ \pi = 3.141592....[/tex] is a constant value (explained below)

We can say that the distance around the circle is the circle's circumference.

The circumferences of the two circles given are:

Circle a, with radius equals to 21 meters ([tex] \\ r = 21m[/tex]).

Using [1], using four decimals for [tex] \\ \pi[/tex], we have:

[tex] \\ C = 2*\pi*r[/tex]

[tex] \\ C = 2*3.1415*21[/tex]m

[tex] \\ C = 131.9430[/tex]m

Then, the circumference for circle a is [tex] \\ C = 131.9430[/tex]m.

Circle b, with radius equals to 28 meters ([tex] \\ r = 28m[/tex]).

[tex] \\ C = 2*3.1415*28[/tex]m

[tex] \\ C = 175.9240[/tex]m

And, the circumference for circle b is [tex] \\ C = 175.9240[/tex]m.

We know that

[tex] \\ 2r = D[/tex]

That is, the diameter of the circle is twice its radius.

Then, if we take the distance around the circle and we divided it by [tex] \\ 2r[/tex]

[tex] \\ \frac{C}{2r} = \frac{C}{D} = \pi[/tex]

This ratio, that is, the relationship between the distance around the circle (circumference) and the diameter of a circle is [tex] \\ \pi[/tex] and is constant for all circles. This result is called the [tex] \\ \pi[/tex] number, which is, approximately, [tex] \\ \pi = 3.141592653589793238....[/tex] (it has infinite number of digits).

We can observe that the relationship between the radius of a circle and the circumference is also constant:

[tex] \\ \frac{C}{2r} = \frac{C}{D} = \pi[/tex]

[tex] \\ \frac{C}{2r} = \pi[/tex]

[tex] \\ \frac{C}{r} = 2\pi[/tex]

However, this relationship is [tex] \\ 2\pi[/tex].

We can rewrite it as  

[tex] \\ \frac{r}{C} = \frac{1}{2\pi}[/tex]

And it is also constant.

Answer:

Circle A is 42π

circle C is 56π

Answer:

[tex]- 7 + \frac{2}{3}n = 13 : n = 30[/tex]

Step-by-step explanation:

[tex]-7+\frac{2}{3}n=13[/tex]

Add [tex]7[/tex] to both sides:

[tex]-7+\frac{2}{3}n+7=13+7[/tex]

Simplify:

[tex]\frac{2}{3}n=20[/tex]

Multiply both sides by [tex]3[/tex]:

[tex]3 * \frac{2}{3}n=20 * 3[/tex]

Simplify:

[tex]2n=60[/tex]

Divide both sides by [tex]2[/tex]:

[tex]\frac{2n}{2}=\frac{60}{2}[/tex]

Simplify:

[tex]n = 30[/tex]

Hope I helped. If so, may I get brainliest and a thanks?

Thank you. Have a good day! =)

Answer:

(-6,-2)

Step-by-step explanation:

Hello! Lets get started!

By looking at this problem, we see that both equations equal 2. This makes this problem much easier!

While there are a few methods you could solve this, I will use substitution. First, I need to find what x is in terms of y!

There are many different ways you could do this, here are two:

-x = 2-2y ==> x = -2+2y

-x + 2y = -3x + 8y ==> 2x = 6y ==> x = 3y

For this problem, I am going to use the second answer, x = 3y, as it is simpler!

We need to substitute 3y in for x in either equation; I am going to use the first equation, -x + 2y = 2.

-3y + 2y = 2

-y = 2

y = -2

Now, lets solve for x!

-x + 2(-2) = 2

-x - 4 = 2

-x = 6

x = -6

After plugging the answers into both equations, we see that they are in fact true!

Therefor, our final answer is (-6, -2)

Answer:

the answer is 6C4 (2x)2 (-Y2)4

Step-by-step explanation:

Answer:

the second answer is D

Step-by-step explanation:

on edge

Answer:

Curtis spent $76

(x=76)

Step-by-step explanation:

12 +26

Tracy spent 12 dollars, which was 26 dollars less two times what Curtis spent

(38)2

You then take 12+26 and multiply it by 2

76

brainliest pls?

Answer:

N (-4,3)

Once A is reflected over the horizontal line, it is (-4,3)

Answer:

Step-by-step explanation:

its -4 3

Answer:

the coordinate of the point at the end of the line segment : ( 7 , 1 )

Step-by-step explanation:

HOPE THIS HELP YOU!!! ;))))

Answer:

i think we need the

Step-by-step explanation:

coordinates to be able to plot it

Answer: The answer is 7

Step-by-step explanation:  First n=14, so we rewrite the equation and get 14-7. So the answer is 7.

PS. Can you mark brainliest???

Answer:

Basically 7

Step-by-step explanation:

If N=14 then 14-7

Answer:

27%

Step-by-step explanation:

Answer:

27% please do not rate this answer

Step-by-step explanation:

Answer:

You have three card : 3, 4, and 5.

You first pick one card randomly, the probability of picking a 3 is:

P = 1/3

You then pick a second card without putting the first card back, the probability of picking a 5 is:

P = 1/2

=> The probability of picking a 3 and then picking a 5:

P = (1/3) x (1/2) = 1/6

Hope this helps!

:)

Answer:

[tex]t+0.07t=t(1+0.07)=t(1.07)=1.07t[/tex]

Step-by-step explanation:

There are a couple of  equivalent expressions to the function [tex]t+0.07t[/tex]. For example:

[tex]t+0.07t[/tex]

Factor:

[tex]t+0.07t=t(1+0.07)[/tex]

If you add the terms inside the parentheses:

[tex]t(1+0.07)=t(1.07)[/tex]

Basically you can add the like terms from the start and get the same result.

[tex]t+0.07t=1.07t[/tex]

Therefore:

[tex]t+0.07t=t(1+0.07)=t(1.07)=1.07t[/tex]

Bank A has the highest possible overdraft fee.

An overdraft fee is charged when a payment or withdrawal from your bank account exceeds the available balance and your bank covers the transaction as part of an overdraft protection service. But in addition to covering the transaction, the bank or credit union then applies the fee.

If you don't bring your balance above zero, the bank may close your account and transfer an unpaid balance to a collection agency. Another form of overdraft protection that banks may offer is an automatic transfer from a linked account to cover a purchase if you don't have enough money in checking.

Learn more about overdraft fees here https://brainly.com/question/1739416

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