The perimeter of the rectangle is 45 find out x

Answer:

here is the answer x= 5/3

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

f(x)=f(6) means x=6

Now, as 6>3 we use the formula for x>3

Substituting 6 into 1/2x+7 we get,

1/2(6)+7

=3+7

=10

The value of function at x= 6 is 10.

A piecewise-defined function in mathematics is one that is composed of several smaller functions, each of which has a certain interval of the domain it applies to. Instead of being a property of the function itself, piecewise definition is a means to express the function.

We have,

f(x) = 3x -1 , x<3

1/2x + 7, x>3

Now, for x = 6 which falls in condition x>3

f(6) = 1/2(6)+ 7

f(6) = 3 + 7

f(6)= 10

Learn more about Piecewise function here:

https://brainly.com/question/22428835

#SPJ7

Answer:

8 - (-2) = 10 there you go!

Step-by-step explanation:

Answer:

When you subtract a negative numbe, it is the same as adding the number. For example, 8-(-2) can be written as 8+2. Two negatives make a positive.

:)

Answer:

D) 5

Step-by-step explanation:

To find the unit rate or the amount of shoes per hour. Take the amount of shoes sold and divide by how many hours. On Monday he sold (15/3) or 5 shoes per hour and on Tuesday he sold (20/4) or 5 shoes sold per hour again.

Answer/Step-by-step explanation:

In order, from least to greatest, the factors of 12 are 1, 2, 3, 4, 6, and 12.

Answer:

192

Step-by-step explanation:

Given,

a = 8

b = 24

To find : ab = ?

ab

= 8 x 24

= 192

Answer:

192

Step-by-step explanation:

...................

Answer:

B) 5 gallons

Step-by-step explanation:

4 quarts = 1 gallon

multiply each number by 5

20 quarters = 5 gallons

Answer:

5

Step-by-step explanation:

If there are 4 quarts in a gallon and you are given 20 quarts divide 20 by 4 and you get 5

Answer:

x < -3

Step-by-step explanation:

its correct that the answer.

Step-by-step explanation:

<:

Answer:  314 -(112)

-314 -(112)= -314 * -112

Step-by-step explanation:

Step-by-step explanation:

we have one large rectangle and 2 small right-angled triangles to add.

the area of the rectangle is easy : 15×25 = 375

the right-angled triangle on the long side has one side = 5, and the "invisible" side is 25 - 12 - 5 = 8.

these 2 sides are hitting each other in a right angle and can therefore be used as baseline and height of the triangle.

the area of a triangle is baseline×height/2.

so, the area of the this triangle is 8×5/2 = 20.

the right-angled triangle on the right short side has one side = 5, and the "invisible" side is 15 - 10 = 5.

these 2 sides are hitting each other in a right angle and can therefore be used as baseline and height of the triangle.

so, the area of the this triangle is 5×5/2 = 12.5.

so the total area is

375 + 20 + 12.5 = 407.5

Answer:nahhh nope nevernahhh nope never

Step-by-step explanation:nahhh nope never nahhh nope never

Answer:

Y=m+P

Step-by-step explanation:

oooooooooof me lol

Speed of car in first 15 minutes = 40 km/h

Distance covered = speed × Time taken

60 minutes = 1 hour

15 minutes =

60

15

hour

Distance covered = 240×

60

15

=10km

Speed of car in next 15 minutes = 60 km/h

Distance covered = 60×

60

15

=15km

∴ Total distance covered = (10+15)km = 25 km

∴ 25 km is correct

Answer:

$189

Step-by-step explanation:

first, divide 357/17 to find the unit rate, which is $21/hour, then multiply 21*9 to find how much she would make in 9 hours. 21*9 = 189, so she would make $189.

Answer:

(-3,-6)

Step-by-step explanation:

Answer:

(-3, -6)

Step-by-step explanation:

Answer:

The answer is a.

Step-by-step explanation:

The equation formula is y=mx+b. M stands for the slope. B stands for the y-intercept. In the question, it says that your slope is 3/8 and that your y-intercept is -2. Remember, if it says (0, -2), and 0 is your x-coordinate, it means that it is a y-intercept. So, plug in the numbers into the formula and the equation should be: y=3/8x-2

hope this helps :)

Answer:

Third option again lma.oo

Hope this helps

Answer:

Third answer, or C

Step-by-step explanation:

To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number: number of protons = atomic number. number of electrons = atomic number.

Dubnium Properties

Electrons: 105

Protons: 105

Neutrons: 157

Electron Configuration: [Rn] 5f14 6d3 7s2

Atomic Radius: 139 (estimated)

Answer:

[tex](2 + \sqrt{3}) - (1 + \sqrt{3})i[/tex]

Answer:

  (b)  (2+√3) -(1+√3)i

Step-by-step explanation:

Add like terms. Real terms are added; imaginary terms are added.

  (√3 -i) + (2-√3i) = (√3 +2) +(-i -√3i)

  = (√3 +2) -i(1 +√3) . . . . . the common factor of -i can be factored out

  = (2 +√3) -(1 +√3)i

Answer:

Answer is y = 25/4

Answer:

.072 / 345.00 = 0.0002086956

the tenth place is the first digit to the right of the decimal point so it would round to 0.0

Round to the nearest tenth of the number is 0.

We need to round it to the nearest tenth.

Write the above expression in fractional form.

{0.072}{345} = 0.00028

the Round to the nearest tenth of the number is 0.

HOPE THIS HELP

Answer:

A)60°

B)140°

Step-by-step explanation:

Hope it can help you lovelots

#LEARN WITH BRAINLY

Answer:

D. The axis of symmetry is x = 1.5 and the vertex is (1.5, 0).

Step-by-step explanation:

y=4x^2-12x+9:\quad \mathrm{Parabola\:with\:vertex\:at}\:\left(h,\:k\right)=\left(\frac{3}{2},\:0\right),\:\mathrm{and\:focal\:length}\:|p|=\frac{1}{16}

To find the vertex of this parabola, "complete the square:"  Rewrite y = 4x2 - 12x + 9 in the form y = 4(x - h)^2 + k:

y = 4x^2 - 12x + 9  =>  y = 4(x^2 - 3x) + 9.

Now complete the square of x^2 - 3x:  Take half of -3 and square the result, obtaining (-3/2)^2, or 9/4.  Add 9/4 to x^2 - 3x and then subtract 9/4 from the result:  We get x^2 - 3x + 9/4 - 9/4.  Substitute this result back into

y = 4(x^2 - 3x) + 9:  y = 4(x^2 - 3x + 9/4 - 9/4) + 9

and then rewrite the perfect square x^2 - 3 + 9/4 as the square of a binomial:

                                y = 4(x - 3/2)^2 - 9/4) + 9.  This simplifies to:

                                y = 4(x - 3/2)^2 + 0.

Thus, the vertex is at            (3/2, 0) and the axis of symmetry is x = 3/2.  This agrees with Answer B.

Given : equation y = 4x^2 − 12x + 9

To Find  :

A) The axis of symmetry is x = 0 and the vertex is (0,9).

B)The axis of symmetry is x= 1.5 and the vertex is (1.5, 0).

C)The axis of symmetry is x = 4 and the vertex is (4, -12).

D)The axis of symmetry is x = -1.5 and the vertex is (-1.5, 36).

Solution:

y =  4x² - 12x  + 9

=> y = (2x)² - 2(2x)3  + 3²

=> y = (2x - 3)²

=> y = 4(x - 3/2)²

=> y = 4(x - 1.5)²

Axis of symmetry is x= 1.5  

Vertex  = (1.5 , 0)

The axis of symmetry is x= 1.5 and the vertex is (1.5, 0).

Answer:C

2K = 24 -24

Step-by-step explanation:

Answer:

 thisBiraanin why h chpaidrysayeo ingfreakt qualse

Step-by-stepkStep-by-step explanation:

(3 4/3)²

= (13/3)²

= 169/9

= 18.77

_____

RainbowSalt2222 ☔

Answer:

y=1/2-2

Step-by-step explanation:

Answer:

£1100

Step-by-step explanation:

10% of 22000=2200

2200/2=5%=1100

Answer:

D: [tex]5x-8y=40[/tex]

Step-by-step explanation:

At a glance: Last one, it's the only one with different signs for x and y coefficient, and the graph is growing.

Some more reasoning: Write all of them in slope-intercept point:

[tex]A: y= -\frac58x +\frac52\\B: y= -\frac85x+4\\C: y= -\frac85x+8\\D:y=-\frac58x-5[/tex]

The only one with a compatible slope and intercept is D

Number crunching: replace the coordinates of either [tex](8;0)[/tex]or[tex](0;-5)[/tex]. As soon as the equality stops holding, that option isn't valid anymore.

Example: A w/ [tex](0;-5)[/tex]: [tex]\frac 52(0) +4(-5) = 10 \rightarrow -20 = 10[/tex] which isn't true, so A is out.

Answer:

f(x)=3(-13)^x

Step-by-step explanation:

since we know that our x=0 then y=3(-13)^0

=3

put it in mind that during the indices we learnt that any number to the power zero is 1 and any number to the power 1 it is the number itself so we can continue to say

y=3(1)

=3

[tex]\large\underline{\sf{Solution-}}[/tex]

[tex]\sf \dfrac{x + 1}{10} - \dfrac{3(x - 1)}{5} = 2[/tex]

[tex]\sf\longmapsto \dfrac{x + 1}{10} - \dfrac{3x - 3}{5} = 2[/tex]

[tex]\sf\longmapsto \dfrac{(x + 1) - 2(3x - 3)}{10} = 2[/tex]

[tex]\sf\longmapsto \dfrac{x + 1 - (6x - 6)}{10} = 2[/tex]

[tex]\sf\longmapsto \dfrac{x + 1 - 6x + 6}{10} = 2[/tex]

[tex]\sf\longmapsto \dfrac{ - 5x + 7}{10} = 2[/tex]

[tex]\sf\longmapsto - 5x + 7 = 20[/tex]

[tex]\sf\longmapsto - 5x = 20 - 7[/tex]

[tex]\sf\longmapsto - 5x = 13[/tex]

[tex]\sf\therefore x = - \dfrac{13}{5} [/tex]

Hence, the value of x will be -13/5 respectively.

[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]

[tex]\frac{x + 1}{10} - \frac{3(x - 1)}{5} = 2 \\ [/tex]

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

[tex]\frac { x + 1 } { 10 } - \frac { 3 ( x - 1 ) } { 5 } = 2 \\ \frac { x + 1 } { 10 } - \frac { 3 ( x - 1 ) } { 5 } = \frac{2}{1} [/tex]

Take a look at the denominators. The denominators are 10, 5 & 1. Their LCM is 10. So, multiply the fractions on both the sides of the equation by 10.

[tex]\frac { x + 1 } { 10 } - \frac { 3 ( x - 1 ) } { 5 } = \frac{2}{1} \\ \frac{x + 1}{10} \times \frac{1}{1} - \frac{3x - 3}{5} \times \frac{2}{2} = \frac{2}{1} \times \frac{10}{10} \\ \frac{x + 1}{10} - \frac{6x - 6}{10} = \frac{20}{10} [/tex]

Now cancel the denominators (as they have the same value) & take the numerators.

[tex]x + 1 - (6x - 6) = 20 \\ [/tex]

Now, simplify it.

[tex]x + 1 - (6x - 6) = 20 \\ x + 1 - 6x + 6 = 20 \\ x - 6x + 1 + 6 = 20 \\ - 5x + 7 = 20 \\ - 5x = 13 \\ x = -\frac{13}{5} \\ \boxed{ \boxed{ \bf x = - \frac{13}{5} =\: - 2 \frac{3}{5} = - 2.6}}[/tex]

__________________

Hope it'll help you!

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