No clue how to do. Please help.

The approximate value of x will be approximately equal to 3.4

The formula for calculating area of rectangle is expressed as:

A  = lw

Ar = (3x-1)(x+2)

Ar = 3x^2+6x-x-2

Ar = 3x^2 + 5x - 2

For the circle

Ac = πr²

Ac = 3.14(x-3)²

Ac = 3.14(x²-6x+9)

Ac = 3.14x² - 18.84x + 28.26

If the area are equal;

3x² + 5x - 2 = 3.14x² - 18.84x + 28.26

3.14x² - 3x² - 5x - 18.84x + 30.26 = 0
0.14x²-23.84x+30.26 = 0

On factorizing the equation, the approximate value of x will be approximately equal to 3.4

Learn more on area of rectangle here; https://brainly.com/question/25292087

Answer:

it's 7.5

Step-by-step explanation:

1/2 as a decimal is 0.5

Answer:

$0.25

Step-by-step explanation:

To find the unit rate of each orange, divide the total cost of the bag by the number of oranges in the bag:

⇒ 3.75 ÷ 15 = 0.25

Therefore, the unit rate of each orange is $0.25

Answer:

18 cats.

Step-by-step explanation:

5 divided by 2 is 2.5. 45 multiplied by 2.5 is 18. This is the right answer, I double checked it.

Answer:

They are not equal

Step-by-step explanation:

So, lets start by simplifying the expressions

Expression 1:

4s + 2

Expression 2:

s x s x s x s + h x h

s^4 + h^2

We have two different expressions now, they don't seem to be equivalent, since in the first one, we have 4 x s + 2, but in the second one, it is s x s 2 times added with h x h.

If you have any questions, let me know in the comments. If you could mark this answer as the brainliest, I would very much appreciate it! :D

Answer:

The answer is A)

Step-by-step explanation:

If we take it from the bottom left corner which it wants us to. We get the point (4,-6) if you move it 8 left and 7 up you get the new point (-4,1) Which ends up putting figure 1 inside of figure 2.

Hope this helped.

A brainliest is always appreciated

Answer:

y-intercept mean the line going through

Step-by-step explanation:

it means the line going threw

Answer:

All of them except A

B: 10 meters in 4 seconds

C: 7.5 meters in 3 seconds

D: 5 meters in 2 seconds

Step-by-step explanation:

divided the number meters by the number seconds to get meters per second

Answer:

Step-by-step explanation: it is 37 and per =45

Answer:

we can do it again and again and again and again and again and again and again and again and again on Monday morning baby I'm a fan for the rest are the only way we do to help me to get to see this

Answer:

Option A

Step-by-step explanation:

We use the slope formula:

[tex]\frac{y_{2}-{y_{1}} }{x_{2} -x_{1} }[/tex]

We substitute the values given and see which option corresponds with our equation:

[tex]\frac{-4-(-6)}{-2-3}[/tex]
Option A must be correct

Answer:

{x,y}={-4,-1}

Step-by-step explanation:

Solve by Substitution :

// Solve equation [2] for the variable x

[2] 3x = 4y - 8

[2] x = 4y/3 - 8/3

// Plug this in for variable x in equation [1]

[1] 2•(4y/3-8/3) + 5y = -13

[1] 23y/3 = -23/3

[1] 23y = -23

// Solve equation [1] for the variable y

[1] 23y = - 23

[1] y = - 1

// By now we know this much :

x = 4y/3-8/3

y = -1

// Use the y value to solve for x

x = (4/3)(-1)-8/3 = -4

Solution :

{x,y} = {-4,-1}

Answer:

43 cm!

Step-by-step explanation:

First, C = 86π

So, 86 × 3.14 (which is π) = 270.04

270 ÷ 3.14 = 86

86 ÷ 2 = 43

i hope this helps :)

Answer:

-5.7 + (-4.2) is your question and -9.9 should be the answer for you

Step-by-step explanation:

hope this helps please mark me brainliest

Check the picture below.

Answer:

52

Step-by-step explanation:

answer = fifty two

x = 52

Answer:

X+90+90+128=360(total sum of quadrilateral)

X+180+128=360

X+308=360

X=360-308

X=52

Step-by-step explanation:

sin 2b = -.5

2b =-30°

b = -15°

cot ^2(3π/4 +15)

=cot^2(3π/4+ π/12)

=cot ^2(10π/12)

=cot^2(150°)

=2.99

Answer:

E'=[0,-8]

H'=[0,-3]

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

D is the only graph where the shaded region is on 6 and less.

Answer:

4

Step-by-step explanation:

Quarter hour on chemistry

Quarter hour on class 2

Quarter hour on class 3

Quarter hour on class 4

Total time....One hour

Based on the statements provided, Barry will a have a Labrador, a Collie and a Staffie at home if he has at least one dog breed.

Logical reasoning in mathematics is the process of using rational and critical thinking abilities to arrive at a conclusion about a problem.

Since Barry have at least one dog breed, the possible breeds of dogs that Barry have can be determined as follows:

Statement 1: If I have a Labrador but not a Staffie, I also have a Collie

Statement 2: I either have both a Collie and a Staffie or neither.

Statement 3: If I have a Collie, then I also have a Labrador.

Therefore, Barry will have a Labrador, a Collie and a Staffie at home if he has at least one dog breed.

Learn more about logical reasoning at: https://brainly.com/question/25175983

(

x

)

=

x

3

+

2

x

2

−

3

x

Explanation:

given zeros

x

=

−

3

,

x

=

0

,

x

=

1

then factors are

(

x

+

3

)

,

(

x

−

0

)

,

(

x

−

1

)

⇒

f

(

x

)

=

x

(

x

+

3

)

(

x

−

1

)

⇒

f

(

x

)

=

x

(

x

2

+

2

x

−

3

)

⇒

f

(

x

)

=

x

3

+

2

x

2

−

3

x

is a possible function

graph{x^3+2x^2-3x [-10, 10, -5, 5]}

Answer:

O 16,30,34

Step-by-step explanation:

To confirm, use Pythagorean theorem to check.

(16)² + (30)² = (34)²

256 + 900 = 1156

=> It is correct

=> Therefore, this set of three lengths will form a right triangle

Answer:

Explanation to the answer below... (Answers in the Explanation)

Step-by-step explanation:

We Know that our rule is y = [tex]y = -6(3)^{x}[/tex] , which means we can use this rule to find y from x. Since we don't know what X, is, we have to assume numbers like 1, to 7. And there is no space to write on the graph, I'll put a virtual copy of a graph.

1st Point,

[tex]y = -6(3)^{x}\\y = -6(3)^{1}\\y = -6(3)\\y = -18\\x = 1, y = -18[/tex]

2nd, point

[tex]y = -6(3)^x\\ y = -6(3)^2\\y = -6(9)\\y = -54\\x = 2, y = -54[/tex]

3rd Point

[tex]y = -6(3)^x\\y = -6(3)^3\\y = -6(27)\\y = -162\\x = 3, y = -162[/tex]

4th Point

[tex]y = -6(3)^4\\y = -6(81)\\y = -486\\x = 4, y = -486\\[/tex]

5th Point

[tex]y = -6(3)^5\\y = -6(243)\\y = -1458\\\x = 5, y = -1458[/tex]

6th Point

[tex]y = -6(3)^x\\y = -6(3)^6\\y = -6(729)\\y = -4,374\\x = 6, y = -4,374\\[/tex]

7th Point (Last Point)

[tex]y = -6(3)^x\\y = -6(3)^7\\y = -6(2,187)\\y. = -13,122\\x = 7, y = -13,122[/tex]

Let's now plot them on the Graph, the values are so big, the graph might look a little odd.

Always remember that we can continue the points infinitely, and there is no stop, The Graph is attached below...

Answer:

[tex]cos2\theta = -frac7{25}[/tex]

Step-by-step explanation:

By using the double angle formula for cosine [tex]cos 2\theta = 2cos^2\theta -1[/tex], replacing the value we have we get

[tex]cos 2\theta = 2 (\frac35)^2 -1 = 2\frac9{25} -1 = \frac{18}{25}-\frac{25}{25} = -\frac{7}{25}[/tex]

Answer:

-7/25

Step-by-step explanation:

Disclaimer: I'm using variable x instead of theta.

Step 1: Simplify cos 2x.

[tex] \cos(2x) = \cos {}^{2} (x) - { \sin {}^{2} (x) }^{2} [/tex]

[tex] \cos(2x) = \cos {}^{2} (x) - (1 - \cos {}^{2} (x) ) [/tex]

[tex]2 \cos {}^{2} (x) - 1[/tex]

We know that cos x= 3/5 so that means

[tex] 2(\frac{3}{5} ){}^{2} - 1 = 2( \frac{9}{25} ) - 1 = \frac{18}{25} - 1 = \frac{ - 7}{25} [/tex]

So the exact value of cos 2x=

[tex] \frac{ - 7}{25} [/tex]

There is another way to find this but this is easier.

Answer:

They scored 66 points

Step-by-step explanation:

Sally scored 45% out of the 100%

And there are 120 points in all.

To find the rest of the teams points you have to subtract Sally's points:

100% - 45% = 55

So to find this out you solve for x (points):

55/100 = x/120

100x = 6,600

100x = 6,600

100         100

x = 66

Step-by-step explanation:

Answer:

I think I'm correct I don't know but I think the answer is B