please help fast for my math project and its due today !!!!!!! fasttttb pleaseeee

Answer:

28(brainlestplzzzzzzzzzzzzzzz)

Step-by-step explanation:

Answer:

28 men will be needed for three hours.

Step-by-step explanation:

7 hours --- 12 men

1 hour --- (12 * 7) 84 hours

3 hours --- (84/3) = 28 hours

Thenks and mark me brainliest :)))

Answer:

it would be [tex]x^2z^2[/tex]

Step-by-step explanation:

you would just put the x^2 next to the z^2 in this case.

[tex]\huge\text{Hey there!}[/tex]

[tex]\large\text{Use these formulas to solve for this equation.}\\\\\\\mathsf{ax^2 + bx + c = 0}\\\\\\\mathsf{x = \dfrac{-b \pm\sqrt{b^2-4ac}}{2a}}[/tex]

[tex]\mathsf{x^2-14x + 74= 0}[/tex]

[tex]\mathsf{1x^2 + (-14x) + 74= 0}[/tex]

[tex]\large\text{Whereas, a = 1, b = -14, \& c = 74}[/tex]

[tex]\mathsf{x =\dfrac{-(-14)\pm \sqrt{(-14)^2 - 4(1)(74)}}{2(1)}}[/tex]

[tex]\mathsf{-(-14) = \bf 14}\\\\\mathsf{(-14)^2-4(1)(74)=\bf -100}[/tex]

[tex]\mathsf{x = \dfrac{14\pm \sqrt{-100}}{2}}[/tex]

[tex]\boxed{\boxed{\large\textsf{Answer: \huge \bf No real solutions}}}\huge\checkmark[/tex]

[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

[tex] \Large{\boxed{\sf x= 7 \pm 5i} } [/tex]

[tex] \\ [/tex]

The given equation is a quadratic equation. In other words, it is written in the form ax² + bx + c = 0, where a ≠ 0.

[tex] \\ [/tex]

We will solve this equation using the quadratic equation, which is the following:

[tex] \sf x = \dfrac{- b \pm \sqrt{b^2 - 4ac}}{2a} [/tex]

[tex] \\ [/tex]

First, let's identify the value of the coefficients a, b, and c:

[tex] \\ [/tex]

Then, substitute these values into the quadratic formula:

[tex] \sf x= \dfrac{-(-14) \pm \sqrt{(-14)^2 - 4(1)(74)}}{2(1)} = \dfrac{14 \pm \sqrt{-100}}{2} [/tex]

[tex] \\ [/tex]

Simplify the expression knowing that [tex] \sf \sqrt{-1} = i [/tex], and keep in mind the following property:

[tex] \Large{\boxed{\sf \sqrt{ab} = \sqrt{a}\sqrt{b} }} [/tex]

[tex] \\ [/tex]

[tex] \sf x= \dfrac{14 \pm \sqrt{100 \times (-1) }}{2} = \dfrac{14 \pm \sqrt{100} \times \sqrt{-1}}{2} = \dfrac{14 \pm 10 \times i }{2} \\ \\ \implies \boxed{\boxed{\sf x= 7 \pm 5i}} [/tex]

[tex] \\ [/tex]

Therefore, the two complex conjugate roots of this equation are x = 7 + 5i and x = 7 - 5i.

[tex] \\ [/tex]

▪️Learn more about quadratic equations and complex conjugate roots here:

↣https://brainly.com/question/13880878

Answer:

xr ≤ 7

Step-by-step explanation:

He must spend less than or equal to 7$ to account for 5 trips and 3 extra dollars for 1 trip.

Answer:

(4,-3)

Step-by-step explanation:

The y coordinate stays the same, and the x changes from positive to negative

Answer:

Step-by-step explanation:

or the function f(x) = x² what is the

Max. domain if y is restricted to; f(x) = 144 and

f(x) =1286?

Answer:

P( 44 < X < 56 ) =  0.12

Step-by-step explanation:

Number of seconds one gets to solve the puzzle ( X )

E( X ) = 100 + 0 ) / 2 = 50

Var ( X ) = 833.3333

бx = √833.3333  =  28.868

Determine The approximate probability

P( 44 < X < 56 ) = Δ time given / number of players selected

P( 44 < X < 56 ) = (56 - 44) / 100

                          = 12 / 100 = 0.12

Answer:

Step-by-step explanation:

X+X+X+Y+Y=

you simply count equal letters and add them x+x+x is 3x and y + y = 2y.

x + x + x + y + y =

3x + 2y

Answer:

b is corect

Step-by-step explanation:

Answer:

Step-by-step explanation:

1）√320=8√5

（√125+√45）=8√5

（√500-√20）=8√5

ABC is an equilateral triangle.

2) area=1/2 lengh * h

1/2 * 4√15 * 8√5

=2√15 * 8√5

=80√3

Answer:

The length of the fence is 6.28x-150 cm.

Step-by-step explanation: ... Since the pool is in a circular shape so the circumference will be the length of the fence.

Answer: ux= 10.5, ox= 0.001

Step-by-step explanation:

I took the test and got it right

Answer:

20

Step-by-step explanation:

5 x 4 = 20

take both numbers and multiply them .

Answer:

D . 64

Step-by-step explanation:

Explanation attached as photo

Therefore , the solution of the given problem of square comes out to be the ABCD  square is 18 inches

The side length of a square ABCD is 18 inches Each side of square ABCD is 18 inches The midpoints of ABCD are joined to form a square MNOP The figure is attached below

Here,

We need to find the side length of square MNOP

AMN form a Right angle triangle

We know AM =9  and AN= 9

To find MN , use Pythagoreans theorem

MN2=AM2+AN2

MN2=9square+9 square

MN2=162

Take square root on both sides

MN=9 root 2

so the side of the square MNOP is  9 square root 2 inches

To learn more about square refers to;

brainly.com/question/11581964

#SPJ1

Answer:

slope is 3/4 or .75

Step-by-step explanation:

Equation of line is

y= .75 + 1.5

hope this helps :)

Answer: 16.10

Step-by-step explanation:

$14 + 15% increase rate = 16.10

15% = 2.10

Answer:

Yes, it is possible

Step-by-step explanation:

Answer:

378873

Step-by-step explanation:

Using the relation :

y = 180000(1.07)^x

x = Number of days since May 6 ;

y = Number of mosquitoes after x days

x = May 17- May 6 = 11 days

Therefore, number of mosquitoes inhabiting the city on May 17 will be :

y = 180000(1.07)^11

y = 180000 * 2.1048519522998348950643

y = 378873.351413970281111574

y = 378873 (nearest whole number).

Answer:

okay.................................

Answer:

10.14

Step-by-step explanation

The numbers sum equals 71

and there are 7 # so

71/7

=

Ans.

Answer:

Mei is correct because -9 is to the left of -3 on the number line. ( -9<-3)

Answer:

Mel is correct because -9 is to the left of -3 on the number line.

Step-by-step explanation:

This is because numbers on the left are less so -9 is less than -3.

Answer:

Y intercept is where x=0. Plug it in the original function find the y intercept

Step-by-step explanation:

Graph?

Hi there!

[tex]\large\boxed{P = 4x^2 + 12x + 22}[/tex]

The perimeter of a rectangle is:

P = 2l + 2w

Thus, plug in the given length and width:

P = 2(2x² + 5x + 8) + 2(x + 3)

Distribute:

P = 2(2x²) + 2(5x) + 2(8) + 2(x) + 2(3)

Simplify:

P = 4x² + 10x + 16 + 2x + 6

Combine like terms:

P = 4x² + 12x + 22

Answer:

[tex]4x^2+12x+22[/tex]

Step-by-step explanation:

The perimeter of a rectangle is equal to [tex]2l+2w[/tex] where l is the length and w is the width. So, this rectangle would be equal to [tex]2\left(x+3\right)+2\left(2x^2+5x+8\right)[/tex]. Then, to find the polynomial simplify the expression. To do this first distribute the two 2s. This equals [tex]2x+6+4x^2+10x+16[/tex]. Then, add like terms to finish simplifying. This gives you the final answer of [tex]4x^2+12x+22[/tex].

9514 1404 393

Answer:

  distributive property

Step-by-step explanation:

The distributive property of multiplication over addition tells you ...

  a(b +c) = ab +ac

This works both ways, allowing you to eliminate or add parentheses as may be needed.

The common factor of ...

  11x +5xy

is x. It may be factored out according to the distributive property to give ...

  x(11 +5y)