answer plz..... ill mark brainleist

Answer:

x=1 ,x= -5

Step-by-step explanation:

x+2x2-4=-7x+6

2x2+x+7x-4-6=0

2x2+8x-10=0

divide through out by 2 to reduce the equation

x2+4x-5=0

by using formula method

x=[-b+\-√b2-4ac]/2a. a=1, b=4 c=-5

x=[-4+\-√4^2-4*1*-5]/2*1

x=[-4+\-√16+20]/2

x=[-4+\-√36]/2

x=[-4+\-6]/2

x=(-4+6)/2 ,x=(-4-6)/2

x=2/2 , x=-10/2

x=1 , x=-5

The number of solutions to the equation are two and Real in nature. The solutions are x = 1 and x = - 5.

We have the following quadratic equation -

x + [tex]2x^{2}[/tex] - 4 = -7x + 6

We have to determine its solutions.

The Quadratic formula is -

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

According to question, we have -

x + [tex]2x^{2}[/tex] - 4 = -7x + 6

Rearranging the equation -

[tex]2x^{2}[/tex] + x + 7x - 4 - 6 = 0

[tex]2x^{2}[/tex] + 8x - 10 = 0

Using the quadratic formula -

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

[tex]$x=\frac{-8\pm\sqrt{64-(-80)}}{4}$[/tex]

[tex]$x=\frac{-8\pm\sqrt{144}}{4}$[/tex]

[tex]$x=\frac{-8 +12}{4}[/tex]       and         [tex]$x= \frac{-8-12}{4}[/tex]

x = 1         and       x = - 5

Hence, the number of solutions to the equation are two and Real in nature. The solutions are x = 1 and x = - 5.

To solve more questions on Quadratic Equations, visit the link below -

brainly.com/question/23458698

#SPJ6

Answer:

B

Step-by-step explanation:

Answer:

Step-by-step explanation:

Ok look, you gonna laern something’s so basically you can not be a man of a man who is a man of a man and he killed you he was the one he saw him kill him he said it would be a good day he is not the only person who he was killed him in electric he didn’t know what he saw and killed a good man he said was he killed a man he was a good father he said ihe on my way to the hospital was at my moms for my first time here in a good day with him I was with green light blue red white white yellow blue blue orange green yellow blue blue green green orange yellow yellow orange orange brown white yellow yellow white yellow orange yellow yellow green yellow blue blue i was the yellow orange orange yellow orange green yellow blue blue white white blue green green among us

E

Answer:

The optimal, vertex, value will be a minimum

Step-by-step explanation:

The given zeros of the quadratic relation are 3 and 3

The sign of the second differences of the quadratic relation = Positive

Whereby the two zeros are the same as x = 3, we have that the point 3 is the optimal value or vertex (the repeated point in the graph of the quadratic relation) of the quadratic relation

Whereby, the table of values for the quadratic relation from which the second difference is found starts from x = 3, we have;

To the right of the coordinate points of the zeros of the quadratic relation, the positive second difference in y-values gives as x increases, y increases which gives a positive slope

By the nature of the quadratic graph, the slope of the line to the left of the coordinate point of the zeros of the quadratic relation will be of opposite sign (or negative). The quadratic relation is cup shaped and the zeros, therefore, the optimal value will be a minimum of the quadratic relation

Answer: 2 year

Step-by-step explanation: After 3 years scheme B would be 80$ while Scheme A would be 75$

Answer:

X<2

Step-by-step explanation:

- signs will be cancelled after taking common.

then 6 is subtracted from 18 and we get 12.

then 12 is divided by 6 and we get 2.

the inequality sign will remain the same.

Answer:

I hope this helps!

Answer:

1/4

Step-by-step explanation:

Answer:

[tex]m=4[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

Point (3, 7)

Point (5, 15)

Step 2: Find slope m

Answer:

4

Step-by-step explanation:

cuz

Answer:

The value of x = -10 if g(x)=0.

i.e.

When x = 0, g(-10)=0

Step-by-step explanation:

From the given graph, it is clear that the graph passes through the x-axis when x = -10.

In other words, the function becomes zero at x = -10.

Thus, the x-intercept x = -10 will determine that:

at x = -10 , g(-10) = 0

Thus, the value of x = -10 if g(x)=0.

i.e.

When x = 0, g(-10)=0

Answer:

yes

Step-by-step explanation:

Answer:

i think its 6/2=3/1

Step-by-step explanation:

Answer:

1. Volume = 5128.67 ft³

The volume if sphere is given by:

V = (4/3)πr³

If the tank is cut into half vertically, then the volume of sphere becomes.

V = (4/3)πr³ / 2

If the tank is cut into half again horizontally, then the volume of the sphere becomes.

V = (4/3)πr³ / 4

Hence, as the main tank forms a quarter sphere, its Volume is given by:

V = (4/3)πr³ / 4

It is given in the question that the radius is 70 ft.

Substitute that in the given formula:

V = (4/3)π(70)³ / 4

V = 5128.67 ft³

 2. Volume of tank = 461,814 ft³

Step-by-step explanation:

Congruent tanks implies that both tanks are of identifical shape, form & dimensions. Congruent means that the tanks have the same radius as well as height. Hence, the heights and radii of tanks #1 and #2 are equal and the same.

Let's list out the information given us:

radius(tank #1) = 35 ft ⇒ radius(tank #2) = 35 ft, height(tank #2) = 120 ft ⇒ height(tank #2) = 120 ft

Volume of cylinder = πr²h

The tanks have been cut into half, as such:

Volume of tank = ½πr²h

Volume of tank = Volume(tank #1) + Volume(tank #2)

Since the tanks are congruent (same dimensions), we have:

⇒ ½πr²h + ½πr²h ⇒ πr²h

Volume of tank =  π * 35² * 120 = 147,000 π

Volume of tank = 461,814 ft³

3.  1047.2 ft³

Step-by-step explanation:

The following information is missing:

The main show tank has a radius of 60 feet and forms a quarter sphere where the bottom of the pool is spherical and the top of the pool is flat. (Imagine cutting a sphere in half vertically and then cutting it in half horizontally)

The only dimension needed for the main show tank is its radius. Then the model radius will be 1/6 * 60 = 10 feet

The volume of a sphere is:

V = 4/3 * π * r³

For a quarter sphere it is:

V = 4/3 * π * r³ * 1/4

V = 1/3 * π * r³

For the smaller mock-up tank:

V = 1/3 * π * 10³

V = 1047.2 ft³

Answer:

f(1) = 1

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

f(1) is asking for the y-value when x = 1. According to the graph of f, when x = 1, y = 1. Therefore, f(1) = 1.

Answer:

Midpoint={5.5,1}

Step-by-step explanation:

M={x1+x2/2,y1+y2/2}

M={6+5/2,-2+4/2}

M={11/2,2/2}

M={5.5,1}

Answer:

-2, -4, -1.5

Step-by-step explanation:

-6x+10>16

-6x>6

x<-1

(anything less than -1)

Answer:-4, -2, -1.5

Step-by-step explanation: First, simplify the equation. You should get -6x+10>16

Then, substitute the values into the place of x. If they are greater than 16, they are solutions. -4, -2, and -1.5 work. Hope this helps you!

Answer:

[tex] \frac{ - 2}{25} \times 5[/tex]

first you multiply 2 by 5. Then you get 10 over 25. Then you simplify it. What is the common factor of both 10 and 25? Is it 2? No 2 is a factor of 10 but not 25. It's 5. After you get the common factor you divide both numbers by it. So 10/5 would be 2. 25 divide by 5 would be 5. And the negative sign remains

-2/25 x 5/1 = -10/25 = -2/5

hope this helps :}

Answer: 68

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

because if change to slope intercept form: y = mx+b

4=m

m=slope

Answer: Slope = -4.000/2.000 = -2.000

x-intercept = 285/2 = 142.50000

y-intercept = 285/1 = 285.00000

Step-by-step explanation: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

4*x+2*y-(12*48-2-4)=0

STEP

1

:

Pulling out like terms

1.1 Pull out like factors :

4x + 2y - 570 = 2 • (2x + y - 285)

Equation at the end of step

1

:

STEP

2

:

Equations which are never true:

2.1 Solve : 2 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Equation of a Straight Line

2.2 Solve 2x+y-285 = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line 2x+y-285 = 0 and calculate its properties

Graph of a Straight Line :

Calculate the Y-Intercept :

Notice that when x = 0 the value of y is 285/1 so this line "cuts" the y axis at y=285.00000

y-intercept = 285/1 = 285.00000

Calculate the X-Intercept :

When y = 0 the value of x is 285/2 Our line therefore "cuts" the x axis at x=142.50000

x-intercept = 285/2 = 142.50000

Calculate the Slope :

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 285.000 and for x=2.000, the value of y is 281.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 281.000 - 285.000 = -4.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

Slope = -4.000/2.000 = -2.000

Geometric figure: Straight Line

Slope = -4.000/2.000 = -2.000

x-intercept = 285/2 = 142.50000

y-intercept = 285/1 = 285.00000

Answer:

39.4285714286

Step-by-step explanation:

Hope this helps and have a great day!!!

Answer:

$110.25

Step-by-step explanation:

Step one:

given

principal= $100

rate= 5%

time = 2 years

Required

The final amount

Step two:

The compound interest formula is

[tex]A=p(1+r)^t[/tex]

substituting we have

[tex]A=100(1+0.05)^2\\\\A=100(1.05)^2\\\\A=100*1.1025\\\\A=110.25\\\\[/tex]

The final amount is $110.25

Step-by-step explanation:

2x^3=128

or,x^3=128/2

or,x^3=64

or,x=3√64

or,x=4

Answer:

. i think it's wrong

Answer:

Scalene triangle (As the definition says)

Answer:

142

Step-by-step explanation:

Ok explanation

we know the sides 9, 11, 38, and 13.

there are 2 missing sides we need to find

so the first one whic is the longer one is we know that the 38 is already 1 part of it but not the whole thing. We know the 9 is part of the 38 since it connects. So that gives us that side of 47.

Now for the shrter side, we know 1 part of it is 13 And the other part is 11. So we Add them up and get 24

Now the sides are 9, 11, 38, 13, 47, and 24

We add them up and get 142

Answer:

142 mi

Step-by-step explanation:

Top = 9 +38 = 47

Right Side = 13

Bottom Right = 38

11 + 9 = 20

Left Side = 24

47 + 13 +38 + 20 + 24 = 142

Answer:

fair credit billing act

Answer:

No

Step-by-step explanation:

The amount of minutes to climb up 1 foot of height would take around 2 to 3 minutes. if you divide 950 with 2, you get 475 which would be the time in minutes it takes to climb, if we convert 475 minutes to hours, it would be an estimate of  7.92 hours. So as we see they would need an extra 92 minutes to climb the full 950 feet. If you were able to climb it at an average rate of 135.7 ft/hr, you could make it.

(this was someone elses explanation)

Answer:

a^2+b^2=c^2

15+17=32cm

Step-by-step explanation:

Answer:

57.59cm

Step-by-step explanation:

Use the Pythagorean theorem to calculate the hypotenuse from right triangle sides. Take a square root of sum of squares:

c = √(a² + b²)

Right triangle with law of sines formulas. a over sin(α) equals b over sin(β) equals c, because sin(90°) = 1

Given angle and one leg

c = a / sin(α) = b / sin(β), from the law of sines

Given area and one leg

As area of a right triangle is equal to a * b / 2, then

c = √(a² + b²) = √(a² + (area * 2 / a)²) = √((area * 2 / b)² + b²)

Answer:

d

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Just took the test

Answer:

Step-by-step explanation:

This is B

Step-by-step explanation:

s = ut + 0.5at²

= (3)(1/3) + 0.5(-12)(1/3)²

= 1 - 2/3

= 1/3

The value of s is 1/3.

Answer:

[tex]s = ut + \frac{1}{2} a {t}^{2} \\ s = (3 \times \frac{1}{3} ) + ( \frac{1}{2} \times -12 \times {( \frac{1}{3}) }^{2} ) \\ s = (1) + ( -\frac{2}{3} ) \\ s = - \frac{1}{3} \\ s = -\frac{1}{3} \: metres[/tex]