Answer please anyone ?

Answer:

Step-by-step explanation:

real zeros -----> where f(x) = 0

[tex]-2x^{2} - 6x - 1 = 0\\[/tex] * (-1)

[tex]2x^{2} + 6x + 1 = 0\\[/tex]

Δ = [tex]6^{2} - 4 * 2 * 1[/tex] = 36 - 8 = 28

vΔ = 2[tex]\sqrt{7}[/tex]

x' = [tex]\frac{-6 + 2\sqrt{7} }{2 * 2} = \frac{-6 +2\sqrt{7} }4}[/tex]

x'' = [tex]\frac{-6 - 2\sqrt{7} }{2 * 2} = \frac{-6 -2\sqrt{7} }4}[/tex]

Answer:

13/7, or 1 and 6/7.

Step-by-step explanation:

2 and 3/5=13/5

1 and 2/5=7/5

(13/5)/(7/5)=13/5(5/7)

65/35

13/7

Answer:

1 6/7

Step-by-step explanation:

2 3/5 ÷ 1 2/5

Change to improper fractions

2 3/5 = (5*2 +3)/5 = 13/5

1 2/5 = (5*1 +2)/5 = 7/5

13/5 ÷ 7/5

Copy dot flip

13/5 * 5/7

The 5's cancel

13/7

Change back to a mixed number

7/7 + 6/7

1 6/7

Answer: x=-7

Step-by-step explanation:

The equation we are given is 2.5x+10=x-0.5. We can use out algebraic properties to solve for x.

2.5x+10=x-0.5       [move like terms into one side by adding and subtracting]

2.5x-x=-0.5-10       [combine like terms]

1.5x=-10.5              [divide both sides by 1.5]

x=-7

Answer:

3/14

Step-by-step explanation:

Express the beds as a fraction of the total output.

Beds = 15

Total output = 30 + 25 + 15 = 70

Proportion that is beds = 15/70

15/70 = 3/14

Answer:

x=2 and x= -8

Answer: 180 houses

Step-by-step explanation:

From the question, we are informed that in a village the number of houses and the number of flats are in the ratio 9:5 while the number of flats and the number of bungalows are in the ratio 10:3 and that there are 30 bungalows in the village.

Since the ratio of the number of flats and the number of bungalows are in the ratio 10:3 and there are 30 bungalows in the village, the number of flats will be:

= 10/3 × 30

= 10 × 10

= 100 flats

Since we are told that the ratio of the number of houses to the number of flats are in the ratio 9:5 and we've gotten the number of flats as 100, then the number of houses will be:

= 9/5 × 100

= 9 × 20

= 180 houses

Proof:

3 consecutive integers are x, x+1 , x+2.

Add these values.

x+x+1+x+2

3x+3

3×(x+1)

3(x+1) is the multiple of 3 for any integer value of x.

Answer: We have proved that the sum of 3 consecutive numbers is always a multiple of 3.

Let us assume: 3 consecutive integers are x, x+1 , x+2.

Then add these values.

[tex]x+x+1+x+2\\=3x+3\\=3(x+1)[/tex]

It is the multiple of 3 for any integer value of x.

Learn more: https://brainly.com/question/12049968

Answer:

x = 4

Step-by-step explanation:

M is the midpoint of segment VW. Hence, we have MV = MW

As we can see from the picture: MV = 4x - 1 and MW = 3x + 3.

Therefore, we have an equation as below:

4x - 1 = 3x + 3

Let's move all the x-components to the left and other numbers to the right for working out x. The new equation is presented as:

4x - 3x = 1 + 3

We notice that the sign of 3x has been changed from + to -, and the sign of 1 has been changed from - to + (this is the rule used to change the sign of a number in an equation when you move that number from one side to the other side)

Now we perform the subtraction on the left side and the addition on the right side to simplify the equation. We finally get:

x = 4

This is the final answer.

I hope this helps!

Answer:

the answer is g (x)=2x2

Answer:g(x)= -1/2x2

Step-by-step explanation:

This is the correct answer just took the quiz

Answer:

B) 2

Step-by-step explanation:

f(x) = 3x - 6

0 = 3x - 6

3x = 6

x = 2

Answer:

.

Step-by-step explanation:

Answer:

The area of the semi circle  [tex]A = 157.1 cm^2[/tex]

Step-by-step explanation:

Explanation:-

Given radius of circle 'r' = 10 cm

The area of the circle formula

                                [tex]A = \pi (r)^{2}[/tex]

The area of the semi circle formula

                            [tex]A = \frac{\pi (r)^{2} }{2}[/tex]

taking  π =3.142

                           [tex]A = 3.142 X \frac{(10)^2}{2}[/tex]

On calculation , we get

                           [tex]A = 157.1 cm^2[/tex]

Final answer:-

The area of the semi circle  [tex]A = 157.1 cm^2[/tex]

The answer is < RQO and < STV

Hope it helps

Good luck on your assignment ..

All real numbers because any value of x works

Answer:

x²+6

Step-by-step explanation:

Let the number be x

⇒ Multiplying it by itself makes x × x = x²

⇒ Adding 6 makes it x²+6

Answer:

[tex] {x}^{2} + 6[/tex]

Step-by-step explanation:

thinked number = x

multiply by itself = x *x

[tex]x \times x \\ = {x}^{2} [/tex]

add 6 =+6

[tex] {x}^{2} + 6[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

- 3 ≤ x < 2

Step-by-step explanation:

The line extends from - 3 to 2

The closed circle at - 3 means x can equal - 3

The open circle at 2 means that x cannot equal 2, thus

- 3 ≤ x < 2

Answer:

D

Step-by-step explanation:

Here, we want to know the total amount of money shared

Total ratio is 2 + 4 + 9 = 15

Now, John and Peter with ratios 2 and 4 equals $360

If we combine their ratios, what we have would be

6:9

Let the amount shared be x

Now, mathematically

6/15 * x = 360

6x = 15 * 360

x = (15 * 360)/6

x = $900

Answer:

Third angle = 70 degrees

tan (70) = 10 / x

x = 10 / tan (70)

x = 10 / 2.7475

x = 3.6396724295

x = 3.6 cm (rounded)

Step-by-step explanation:

Answer:

[tex]\angle FMG=60^{\circ}[/tex]

Step-by-step explanation:

Given: [tex]\angle EMG=120^{\circ}\,,\,\angle EMF=60^{\circ}[/tex]

To find: [tex]\angle FMG[/tex]

Solution:

A trapezoid is a quadrilateral in which one pair of opposite sides is parallel. A trapezoid in which opposite angles are supplementary is known as an isosceles trapezoid. In any isosceles trapezoid, two opposite sides are parallel, and the two other sides are equal to each other.

Consider the figure:

[tex]\angle FMG=\angle EMG-\angle EMF\\=120^{\circ}-60^{\circ}\\=60^{\circ}[/tex]

Answer:

Area of square yard is 289 square units.

Step-by-step explanation:

Problem: find the area of yard

Given

side measure of yard is equal to length of garage.

Dimension of rectangular garage : 17 by 10

we know that rectangle consist of 4 sides with opposite of equal length.

Additionally in rectangle value of length is always greater than measure than width of rectangle.

Thus, in the given dimension 17 by 10, 17 is greater than 10.

hence length of garage is 17

this length is equal to side of square yard.

Thus, measure of yard = 17

we know area of square is given by = [tex]side^2[/tex]

thus, area of square yard = [tex]17^2[/tex] = 289

Area of square yard is 289 square units.

Answer:

Given

Hope it helps

Step-by-step explanation:

Pressure is the force per unit perpendicular area over which the force is applied

p=F/A

Where f is force and a is area

So P

= F/A

= 76N / 0.049m2

= (76/0.049) Nm2

= 76000/49

= 1551.02

Or 1551 N/m2

[tex]the \: answer \: is \: one \\ explanation \\ there \: is \: only \: one \: such \: plane \: which \: \\ will \: have \: these \: two \: points. \: these \\ two \: points \: will \: satisfy \: only \: one \: pl - \\ ane \: equation \: because \: they \: doesnot \\ lie \: in \: a \: single \: line. \\ hope \: it \: helps[/tex]

Answer:

c

Step-by-step explanation:

one

Answer:

Part A: x⁴ + x³ + x²

Part B: (4·x + 2) + (-5·x + 6) = -x + 8

Step-by-step explanation:

Part A:

We note that standard form means that the terms of the polynomial are arranged in order starting from the the largest exponential of the polynomial to the smallest exponent

Therefore, we have

x⁴ + x³ + x² is a fourth-degree polynomial with three terms in standard form

It is known that the above polynomial is in standard form based on its ordered arrangement from the largest exponential to the smallest exponential

Part B:

Polynomial are closed under addition, that is when two polynomials are added only the coefficients change as the exponents and variables remain unchanged as follows;

(4·x + 2) + (-5·x + 6)

= 4·x + 2 - 5·x + 6

= 4·x - 5·x + 2 + 6

= -x + 8 which is a polynomial with the same variable and exponent.

Answer:

(f-g)(x)=-x^(2)+2x+8

the solutions are:

x=4 or x=-2

Step-by-step explanation:

(f-g)(x)=2x+1-(x^(2)-7)

(f-g)(x)=-x^(2)+2x+1+7

(f-g)(x)=-x^(2)+2x+8

does this help or should I solve for the zeros/solutions of this quadratic equation?

then:

-x^(2)+2x+8=0

-(x^(2)-2x-8)=0

x^(2)-2x-8=0

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

x=4 or x=-2

Answer:

The required answer is: -x^2+2x+8

Step-by-step explanation:

We have been given the two function:

f(x)=2x+1

And g(x)=x^2-7

We have to find (f-g)(x):

(f-g)(x)=f(x)-g(x)

(2x+1)-(x^2-7)

2x+1-x^2+7

-x^2+2x+8

Hence, the required answer is: -x^2+2x+8

Answer:

c

Step-by-step explanation:

We see that for x≤2 y = x + 2 so the answer is C.

Answer:

7 3/13

Step-by-step explanation:

34x-21x= 9+85

13x=94

x= 94/13

x=7 3/13

Answer:

80 kg

Step-by-step explanation:

[tex]x \times (1+10/100)=88[/tex]

[tex]1.1x=88[/tex]

[tex]x=88/1.1[/tex]

[tex]x=80[/tex]

Answer:  c

Step-by-step explanation:

When multiplying matrices, multiply ACROSS with the left matrix and DOWN with the right matrix.

[tex]\text{Example}:\left[\begin{array}{cc}a&b\\c&d\end{array}\right] \times \left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{c}ax+by\\cx+dy\\\end{array}\right][/tex]

[tex]\left[\begin{array}{cc}5&2\\3&-1\end{array}\right] \times \left[\begin{array}{c}2\\3\end{array}\right] =\left[\begin{array}{c}5(2)+2(3)\\3(2)-1(3)\\\end{array}\right] = \left[\begin{array}{c}16\\3\end{array}\right][/tex]

Answer:

Commission = $76.25

Gross wage = $301.25

Step-by-step explanation:

First, we know her commission is 5% of her sales which means the commission she will receive is;

5% * $1525

[tex]\frac{5}{100} * 1525[/tex]

= $76.25

∴ Her total wage for the week will be;

$225 + $76.25

= $301.25

Answer:

-9x²+6

Step-by-step explanation:

f(x)=3x^2-2

g(x)=(-3) x f (x)