I NEED HELP IN MATH!!! It’s due tonight and I’ve tried to do it and it don’t fully understand please help if u can!!!

Answer:

The center of this circle is (5, -4) and the radius is 1.

Step-by-step explanation:

First regroup these terms according to x and y :

x^2 - 10x + y^2 + 8y = -40

Next, complete the square for x^2 - 10x:  x^2 - 10x + 5^2 - 5^2.

and the same for y^2 + 8y:  y^2 + 8y + 16 - 16

Substituting these results into x^2 - 10x + y^2 + 8y = -40, we get:

x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40.

Next, rewrite x^2 - 10x + 25 and y^2 + 8y + 16 as squares of binomials:

Then x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40 becomes:

(x - 5)^2 + (y + 4)^2 - 25 - 16 = -40, or:

(x - 5)^2 + (y + 4)^2 = 1

This equation has the form (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius.  Matching like terms, we get h = 5, k = -4 and r = 1.

The center of this circle is (5, -4) and the radius is 1.

Answer:

Center (5,-4) Radius = 1

Step-by-step explanation:

Put it in the form of the standard circle equation after dividing everything by 2. (-10x/2=-5x) (8y/2=4y) Since the radius wasn't given, it's just going to be a 1.

(x-5)^2+y(-(-4))^2 = 1^2

Hence, center (5, -4) and radius 1.

Answer:

7/4

Step-by-step explanation:

the slope rises 7 units then goes to the right of 4 units

Answer:

x= 5

the length = 13 meters

the width = 7 meters

Step-by-step explanation:

(2x+3)(x+2)=91

2x²+7x+6=91

2x²+7x-85=0

(2x+17)(x-5) =0

x=-17/2 or x = 5

the length = 2(5)+3= 13 meters

the width = 5+2 = 7 meters

Hi there!  

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I believe your answer is:  

Vertex: (0, 39)

Axis of Symmetry: x = 0  

»»————-　★　————-««  

Here’s why:

⸻⸻⸻⸻

⸻⸻⸻⸻

The 'x' value of the vertex is '0', so the axis of symmetry is [tex]x = 0[/tex].

⸻⸻⸻⸻

See the graph that I have attached.

⸻⸻⸻⸻  

»»————-　★　————-««  

Hope this helps you. I apologize if it’s incorrect.  

Answer:

For equation:

[tex]f(x)=x^2-16x+55[/tex]

Vertex: [tex](8,-9)[/tex]

Axis of symmetry, ([tex]x=8[/tex])

For equation,

[tex]f(x)=x^2-16+55[/tex]

Vertex:[tex](0,39)[/tex]

Axis of symmetry, ([tex]x=0[/tex])

Step-by-step explanation:

The x-coordinate of the vertex of a parabola indicates the line of symmetry of the parabola. Thus, to solve this problem, one must find the vertex of the parabola. This can be done through a process called completing the square.

Completing the square is a process that converts a quadratic equation in standard form into vertex form. The first step is to group the linear and quadratic terms. Then factor out the coefficient of the quadratic term. After doing so, add a term to make the group a perfect square trinomial, then balance the equation.

Possibility 1

If the given equation is the following,

[tex]f(x)=x^2-16x+55[/tex]

Group,

[tex]=(x^2-16x)+55[/tex]

There is no quadratic term, thus, complete the square,

[tex]=(x^2-16x+64)+55-64[/tex]

Simplify,

[tex]=(x-8)^2-9[/tex]

Vertex: [tex](8,-9)[/tex]

Axis of symmetry, ([tex]x=8[/tex])

Possibility 2

If the given equation is the following,

[tex]f(x)=x^2-16+55[/tex]

Combine like terms,

[tex]=x^2+39[/tex]

Put in vertex form,

[tex]=(x)^2+39[/tex]

Vertex:[tex](0,39)[/tex]

Axis of symmetry, ([tex]x=0[/tex])

Answer:

D.

(DNE)

Step-by-step explanation:

when you plug in 1 to the denominator, 1 minus 1 becomes 0. a fraction with 0 as the denominator does not exist.

The limit of the function f(x)=[tex]x^{3}-1[/tex]/x-1 as x approaches 1 is 3.

Limit is the value that a function approaches as the value of variable approaches some value. They are essential to calculas and mathematical analysis and are use to define continuity , derivatives and integrals. It can change value of function at different values of x.

We have been given a function f(x)=[tex]x^{3}-1[/tex]/x-1 and we have to find the limit of function.

F(x)=[tex]x^{3} -1[/tex] /(x-1) [[tex]x^{3} -y^{3} =x^{2} +y^{2} +xy[/tex]]

[tex]\lim_{x \to \0}x^{3}-1/x-1[/tex]

[tex]\lim_{x \to \0} (x-1)(x^{2} +1+x)[/tex]/x-1

[tex]\lim_{x \to \0} x^{2} +x+1[/tex]

change limit by putting x=1-h

[tex]\lim_{h \to \0} (1-h)^{2} +1+1-h[/tex]

Put the value of h=0.

=1+1+1

=3

Hence the limit of the function [tex]x^{3}-1/x-1[/tex] is 3.

Learn more about limits at https://brainly.com/question/27517662

#SPJ2

Answer:

it looks pretty nice

Step-by-step explanation:

Answer:

12.25 cm²

Step-by-step explanation:

(3.5 cm)² = 12.25 cm²

Answer:

r his

Step-by-step explanation:rfrfrefeffrefeferfeferfe

Answer:

14/1.8 = x/4

Step-by-step explanation:

Using similar triangles,

height of man/length of man's shadow = height of tree/length of tree's shadow

1.8/4 = x/14

x/14 = 1.8/4

If we cross-multiply, we have

1.8 × 14 = x × 4

dividing both sides by 4 and 1.8,we have

14/4 = x/1.8

x/1.8 = 14/4

So, the two expressions we have are

x/14 = 1.8/4 and x/1.8 = 14/4.

So, the answer is 14/1.8 = x/4 since the product 1.8 × 14 = x × 4 cannot be expressed in the given ratio.

Answer:

Step-by-step explanation:

Answer:

the answer is 2

-3x+7=1 x=2

Answer:

Answer:

1041$/1W(M-Sun)

892$/1W(M-SAT)

744$/1W(M-Fri)

Step-by-step explanation:

Go to sleep stoo naughty

Answer:

5x - 3

Step-by-step explanation:

Add like terms: (4x + x) + (-6 + 3) = 5x - 3

Answer:

3x-3

Step-by-step explanation:

combine like terms, 4x-x=3x and -6+3=-3

Answer:

B

Step-by-step explanation:

2/9th of the money does to netball

2/9 of 1800 is 400

Answer:b

Step-by-step explanation:

Answer:

The mistakes were on points C and D

Step-by-step explanation:

Point C was graphed on (5,8) when it's supposed to be plotted on (5,7). Point D was on (-3,-4) but was supposed to be on (-4,-3?

Answer:

The mistakes are Point C and D

Answer:

35

Step-by-step explanation:

Trust me. The two triangles are equivalent, so 90+55=145

180-145=35

I believe the answers are A. The account earns about 1.03% interest each year. and D. Tatiana's starting balance was $500.

I hope this helps

Answer:

A and E

Step-by-step explanation:

Answer:

It is a number with 6 whole numbers and 2 decimals, Its a Hundred thousand number

Step-by-step explanation:

Answer: Hi

Step-by-step explanation:

Cost Price per bottle : $1.10

Selling price per bottle : $2.50

2.50 - 1.10 = 1.40

$1200=1.40B

B=858

The company must sell 858 Soda´s in order to equal it daily cost.

Hope this help. Be safe

Answer:

A percentage or percent for short is a fraction; a fraction that always has the denominator as 100. Because the denominator of a percent is always a 100, no matter what the numerator is, we replace 100 with the percent symbol % after the number. By definition, for any number x, x% = x100.

Step-by-step explanation:

Answer:

y < 3

Step-by-step explanation:

If you put the equation on a graphing calculator it shows that.

    Please give me BRAINLIEST and THANKS <(￣︶￣)>

Answer:

8/3

Step-by-step explanation:

We need to find the slope of the line that passes through points , (5,1) and (2,-7) . We can find the slope as ,

=> m = y₁ - y₂/ x ₁ - x ₂

=> m = -7 - 1 / 2 - 5

=> m = -8/-3

=> m = 8/3

Answer:

I would go with letter B. -7

Step-by-step explanation:

The two factors of a quadratic equation can be multiplied to form the original equation. Let the missing term be a:

y² + 15y + 56 = (y + 7)(y + a)

y² + 15y + 56 = y² + (7 + a)y + 7a

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Step by Step Solution

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Reformatting the input :

Changes made to your input should not affect the solution:

Step by step solution :

STEP  1 :

Trying to factor by splitting the middle term

1.1     Factoring  y2+14y+49  

The first term is,  y2  its coefficient is  1 .

The middle term is,  +14y  its coefficient is  14 .

The last term, "the constant", is  +49  

Step-1 : Multiply the coefficient of the first term by the constant   1 • 49 = 49  

Step-2 : Find two factors of  49  whose sum equals the coefficient of the middle term, which is   14 .

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  7  and  7  

                    y2 + 7y + 7y + 49

Step-4 : Add up the first 2 terms, pulling out like factors :

                   y • (y+7)

             Add up the last 2 terms, pulling out common factors :

                   7 • (y+7)

Step-5 : Add up the four terms of step 4 :

                   (y+7)  •  (y+7)

The solution is:

  y  =  -7  

 The solution is:

 y = -14 / 2 = -7

Answer:

89°

Step-by-step explanation:

By inscribed angle theorem:

[tex]m\angle ZXY =\frac{1}{2} \times 178\degree \\ \\ m\angle ZXY =89\degree [/tex]

Answer:

(a) O+ to A+

[tex]O+:A+=90:45[/tex]

[tex]O+:A+=18:9[/tex]

[tex]O+:A+=2:1[/tex]

(b) AB- : AB+

[tex]AB-:AB+ = 6:4[/tex]

[tex]AB-:AB+ = 3:2[/tex]

[tex]AB-:AB+ = 12:8[/tex]

(c): B+ to total

[tex]B+ : Total = 20 : 195[/tex]

[tex]B+ : Total = 4 : 39[/tex]

[tex]B+ : Total = 40 : 390[/tex]

Step-by-step explanation:

Given

[tex]A+ = 45[/tex]       [tex]B+ = 20[/tex]        [tex]AB+ =6[/tex]        [tex]O+=90[/tex]

[tex]A-=21[/tex]       [tex]B-=0[/tex]          [tex]AB-=4[/tex]          [tex]O-=9[/tex]

[tex]Total = 195[/tex]

See attachment

Required

Solving (a): O+ to A+

We have:

[tex]A+ = 45[/tex]

[tex]O+=90[/tex]

So, the ratio is:

[tex]O+:A+=90:45[/tex] ---- first comparison

Divide by 5

[tex]O+:A+=90/5:45/5[/tex]

[tex]O+:A+=18:9[/tex] ---- Second comparison

Divide by 45

[tex]O+:A+=90/45:45/45[/tex]

[tex]O+:A+=2:1[/tex] ---- Third comparison

Solving (b): AB- to AB+

We have:

[tex]AB+ =6[/tex]

[tex]AB-=4[/tex]

So, the ratio is:

[tex]AB-:AB+ = 6:4[/tex] ---- first comparison

Divide by 2

[tex]AB-:AB+ = 6/2:4/2[/tex]

[tex]AB-:AB+ = 3:2[/tex] ---- Second comparison

Multiply by 2

[tex]AB-:AB+ = 6*2:4*2[/tex]

[tex]AB-:AB+ = 12:8[/tex] ---- Third comparison

Solving (c): B+ to total

We have:

[tex]B+ = 20[/tex]

[tex]Total = 195[/tex]

So, the ratio is:

[tex]B+ : Total = 20 : 195[/tex] ---- first comparison

Divide by 5

[tex]B+ : Total = 20/5 : 195/5[/tex]

[tex]B+ : Total = 4 : 39[/tex] ---- Second comparison

Multiply by 2

[tex]B+ : Total = 20*2 : 195*2[/tex]

[tex]B+ : Total = 40 : 390[/tex] ---- Third comparison