solutia ecuatiei 4x+12= 0 este x =

Answer:

His score decreased by 9 percent this time.

Step-by-step explanation:

From his first history exam he had a score of 90 percent. The difference between his first score and present score is given by

90 - 81 = 9

Check the picture below.

[tex]\textit{area of a circular ring}\\\\ A=\pi (R^2-r^2) ~~ \begin{cases} R=\stackrel{larger}{radius}\\ r=\stackrel{smaller}{radius}\\[-0.5em] \hrulefill\\ R=10.5\\ r=7 \end{cases}\implies \begin{array}{llll} A=\pi (10.5^2 - 7^2)\implies A=61.25\pi \\\\\\ A\approx 192.42~m^2 \end{array}[/tex]

The circumference of the circle is about 339 cm.

The area of the circle is about  9, 156 cm∧ 2

NOTE :

The circumference of a circle is known to be the perimeter of the circle.

It is determined using ;

Circumference, C = 2 π r

The area of a circle is known to be the axis occupied by the circle in a two-dimensional plane.

It is determined using ;

Area, A = π r ∧2

How to determine the area and circumference of a circle

Parameters:

π = 3.14

radius, r =54 cm

Circumference, C = 2 π r = 2 × 3.14 × 54 = 339. 12 cm

Circumference , C in the nearest hundredth = 339 cm

Area, A = π r∧ 2 = 3. 14 × 54 × 54 =  9,156.24 cm∧ 2

Area, A in the nearest hundredth = 9,156 cm∧2

Thus, the circumference of the circle in the nearest hundredth is 339cm and the area of the circle in the nearest hundredth is 9, 156 cm∧2

Since the figure is dilated by a factor of 4, the coordinates of point g of the pre-image is (-2, 1)

The coordinates of the image are given as:

The dilation rule is given as:

(x,y) -> 4(x,y)

So, we have:

(-8,4) = 4 * g

Divide both sides by 4

g = (-2,1)

Hence, the coordinates of point g of the pre-image is (-2, 1)

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Answer:

A

Step-by-step explanation:

edge

Answer:

2x^3 + 5x^2 - 18x - 45 m

V = lwh

V = (x + 3)(x - 3)(2x + 5)

V = ((x)(x) + (x)(-3) + (3)(x) + (3)(-3))(2x + 5)

V = (x^2 - 3x + 3x - 9)(2x + 5)

V = (x^2 - 9)(2x + 5)

V = (x^2)(2x) + (x^2)(5) + (-9)(2x) + (-9)(5)

V = 2x^3 + 5x^2 - 18x - 45

Answer: attached a picture

The fourth clock shows the time 25 minutes after 4:00.

The correct option is IV.

Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression some number of times.

Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.

Given:

There are four clocks.

To watch the time on the clock:

The small arrow line shows the time in hours.

And the large arrow shows the time in minutes.

At the first clock;

The time is 11:20.

At the second clock;

The time is 11:40.

At the third clock;

The time is 12:20.

At the fourth clock;

The time is 4:25.

25 minutes after 4:00 means the large arrow will be pointing towards 5.

Because 25 = 5 x 5.

Therefore, all the times on the clocks are given above.

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The complete question;

From the given choices,

which clock shows 25 minutes after 4:00?

The options are given in the attached image.

Answer:

7.2

Step-by-step explanation:

(6)^2 + (4)^2

36 + 16

52

square root of 52 = 7.2

Answer:

The answer would be: √x+3=13

Step-by-step explanation:

A radical equation is an equation with at least one variable put on a radical form. In this question, there is only one kind of variable which is x. Then, you need to find the equation where x is in the radical form. The radical form can be expressed with square root symbol.

The option with √x would be only √x+3=13

Factors of 40: (1, 40) (2, 20) (4, 10) (5, 8)

---Using these factors will help us find a pair that adds up to -13 and multiplies to equal 40

-5 + -8 = -13

-5 x -8 = 40

(v - 8)(v - 5)

The trinomial can be factored into the following expression (v - 8)(v - 5).

Hope this helps!

Answer:

5x²+6x+7=0

Step-by-step explanation:

Yeah. I think it's the answer

Answer:

5x² + 6x + 7 = 0

Step-by-step explanation:

Standard form of quadratic equation :

Solving :

Factorising the polynomial 5x³ + 35x² + 6x + 42, the value of A is 6.

Factorising a polynomial simply means to decompose the polynomial into a product of two or more polynomials.

Therefore, let's factorise 5x³ + 35x² + 6x + 42 and find the value of A

(5x² + A)(x + B)

Therefore,

5x³ + 35x² + 6x + 42

5x³ + 6x  + 35x² + 42

x(5x² + 6) + 7(5x² + 6)

Therefore,

(5x² + 6)(x + 7)

Therefore, the value of A is 6

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Answer:

The amplitude is the maximum displacement/highest peek

Which is in your case = 2

Answer:

3 - 2n

Explanation:

Difference means we have to subtract integers.

Let the number be n. Twice of this number: 2n

Difference of 3 and twice this number: 3 - 2n

Answer:

We are given the initial price of a car and we are also told that the car sold for a 15% profit which means that the price that the car was sold for is 15% more than it's initial price.  This is just a simple multiplication problem which we multiply the initial price by the total percentage plus 0.15

[tex]Sold\ Price = Initial\ Price *(Total\ Percentage+Profit\ Percentage)[/tex]

[tex]Sold\ Price = \$5200*(1+0.15)[/tex]

[tex]Sold\ Price = \$5200*(1.15)[/tex]

[tex]Sold\ Price = \$5980[/tex]

Therefore, our final answer is that the selling price was $5980

Hope this helps!

Answer:

A= 10

Step-by-step explanation:

[10 + 2/360˚(10)]

Answer:

Here is the answer...hope it helps

Answer:

12,30

Step-by-step explanation:

Hence the numbers can either be (6,60) or (12,30), but as both the numbers are greater than 6 so the answer is (12,30)

Answer:

your answer is 242 in^2

A=22+52+168

Answer:

Reflection across the x axis

Step-by-step explanation:

When the triangle reflects across the x axis it will directly map over the other triangle and will appear to be congruent

Answer:

A reflection over the x - axis.

Step-by-step explanation:

The new position of a point, a line, a line segment, or a figure after a transformation is called its image. line y=x. A reflection is a type of transformation known as a flip. The figure will not change size or shape. Mathematical reflections are shown using lines or figures on a coordinate plane. The reason these two triangles are congruent is they reflect each other meaning that they are complete opposites reflecting. When mapped, they are completely reflecting.

Answer:

p = 12

Step-by-step explanation:

13 + p = 25 ( subtract 13 from both sides )

p = 12

Answer:

the value of P is 12

Step-by-step explanation:

if 13+P=25 then P must be 12

subtract 13 from both sides

you're left with P=12

Answer:

126

Step-by-step explanation:

By evaluating the function in j = 1, we conclude that each bottle costs 80 cents.

We know that the total cost in dollars can be represented by the linear equation:

C(j) = 0.8*j

Where C is the cost, and j is the number of juice bottles bought.

Then to get the cost of each bottle, we can evaluate the function in 1, which means buying only one.

C(1) = 0.8*1 = 0.8

So each bottle costs $0.80 (or 80 cents).

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Probability = option(s) that we want / total number of possibilities

Options that we want = cash or credit card  = 50 + 4 = 54

Total number of possibilities = cash, debit card, credit card = 50 + 2 + 4 = 56

54 / 56 = 0.96

Answer: 0.96

Hope this helps!

Answer: the one that passes through the y-intercept of -3

Step-by-step explanation:

Answer:

its c

Step-by-step explanation:

Answer:

470 cm³

Step-by-step explanation:

Volume of rectangular prism = width × length × height

⇒ Volume of whole rectangular prism = 9 cm × 10 cm × 8 cm

                                                                = 720 cm³

Side lengths of the missing piece:

⇒ Volume of the missing piece = 5 cm × 10 cm × 5 cm

                                                    = 250 cm³

⇒ Volume of irregular figure = 720 cm³ - 250 cm³

                                                = 470 cm³

Step-by-step explanation:

there is no image here. and we don't know, if B is smaller or lager than A.

anyway, the volume of a sphere is

4/3 × pi × r³ = 4/3 × pi × r×r×r

that means the scale factor applying to r (radius) has to be multiplied in 3 times (with every r). so, to compare the volumes, the volume scale factor is cubed the linear scale factor.

44³ = 85184

if B is smaller, then its volume is 50/85184 m³

if B is larger, then its volume is 50×85184 m³

since this a such a big number, you made possibly a typo with the scale factor.

The volume of sphere B, the image of sphere A after dilation by a scale

factor of 44, is approximately 1,223,762.42 cubic meters.

The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.

Since, The volume of a sphere is given by the formula:

V = (4/3) pi r

where V is the volume, pi is the constant 3.14.., and r is the radius of the sphere.

Since, sphere A has a volume of 50 cubic meters, we can use this formula to solve for its radius:

50 = (4/3) pi r

r = (3/4)  (50 / pi)

r = (3/(4pi) 50)^(1/3)

r = 2.67 meters

Note that we know,

The radius of sphere A, we can use the scale factor of 44 to find the radius of sphere B:

rₐ = 44  rₓ

rₐ = 44 × 2.67

rₐ = 117.48 meters

Finally, we can use the volume formula again to find the volume of sphere B:

V(B) = (4/3) pi rₓ

V (B) = (4/3) pi (117.48)

V (B) = 1,223,762.42 cubic meters

Therefore, the volume of sphere B, the image of sphere A after dilation by a scale factor of 44, is approximately 1,223,762.42 cubic meters.

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