(2, infinity)
What is the answer to this question?
Please help

Answer:

D=25h

Step-by-step explanation:

D=Dollars

H=Hours

Hope this helps! #Healthylifestyle

The correct equation which models the situation is,

⇒ d = 25 h

Where, h represent the hours worked and d represent the total amount earned.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

A computer repairman makes $25 per hour.

Now,

Let h represent the hours worked.

And, Let d represent the total amount earned.

Hence, The total amount earned (d) = 25 × h

⇒ d = 25h

Thus, The correct equation which models the situation is,

⇒ d = 25 h

Where, h represent the hours worked and d represent the total amount earned.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ6

Answer:

a = 14  

Step-by-step explanation:

The mean is the sum of the values divided by the number of values.

[tex]\begin{array}{rcl}\text{Mean}&= &\dfrac{11 + 8 + 7 + a + 16 + 10}{6}\\\\\dfrac{52 + a}{6}& = & 11\\52 + a & = & 66\\a & = & 66 - 52\\& = & \mathbf{14}\\\end{array}[/tex]

Answer:

-4y-7

Step-by-step explanation:

-4y-4-3

-4y-7

Answer:

a^2 + a or a(a + 1).

Step-by-step explanation:

a^2 - 1 + a + 1

= a^2 + a - 1 + 1

= a^2 + a or a(a + 1).

The correct option is B.

For numbers, a, b, and c distributivity of multiplication over addition says

a(b + c) = ab + bc

Given

We have two algebraic expressions; a² - 1, a + 1.

Add the expressions

Let their sum be g(a). On adding the two expressions

g(a) = (a² - 1) + (a + 1).

Using commutativity of addition of numbers,

g(a) = (a² - 1) + (1 + a).

      = ((a² - 1) + 1) + a                  (Associative property)

      = ((a² + (-1)) + 1) + a              (a - b = a + (-b) )

      = (a² + ((-1) + 1)) + a              (Associative property)

      = (a² + 0) + a                       (a + (-a) = 0)

      = a² + a                               (a + 0 = a)

      = a(a + 1)                             (Distributive property: a(b + c) = ab + bc)

⇒  (a² - 1) + (a + 1) = a(a + 1).

Option B matches the above result.

The correct option is B.

Learn more about the property of addition and multiplication here

https://brainly.com/question/11007967

The question was incomplete. Please find the full content here

which of the following is equivalent to the sum of the expressions a² - 1 and a + 1?

(A)  a(a - 1)

(B)  a(a + 1)

(C)  a²(a + 1)

(D)  a²(a - 1)

#SPJ2

Answer:

D : x² + y² = 64

Step-by-step explanation:

x² + y² = 8²

x² + y² = 64

therefore, your answer is 64

Answer:

D

Step-by-step explanation:

The circle equation is (x-h)² + (x-k)² = r²

Where (h,k) is the center of the circle and r is the radius

Since the center of this circle is at the origin and the radius is 8,

the equation will be x² + y² = 64

Answer:

Step-by-step explanation:

According to the question:

EF +FG = EG

so,

2x + 4 + 4 = 4x + 16

Rearrange and solve:

2x+8 = 4x+16

4x+16 = 2x+8

2x = -8

x = -4.

Now substitute x to find each value:

EF = 2x + 4 = -4

FG = 4

EG = 4x + 16 = 0

Answer:

Region B

Step-by-step explanation:

The solution to the system is the point at which the two lines intersect, which would be in Region B.

Answer:

He is 200 meters south of his house.

Step-by-step explanation:

Say north is positive and south is negative, but your answer will be the absolute value. He goes 250m North. He then goes 450m south which would translate into a problem as 250-450=|-200|=200. In simpler terms think of the road as a number line where north is positive and south is negative and your house is zero, you want the distance on the line from zero.

Answer: The second type of investment earns greater amount of interest.

Step-by-step explanation:

1)

SI = prt / 100

= 10000 x .02 x 4

= 8000

2)

At compound intetest

A = P(1 + r/n)^nt

= 108307.12

Interest = 108307.12 - 100000 = 8307.12

Difference

8307.12 - 8000 = 307.12

Answer:

60

Step-by-step explanation:

hexagon is 6 sided shape. 10 * 6=60

Answer:

A

Step-by-Step Explanation:

We want to find the limit:

[tex]\displaystyle{\lim_{x\to\frac{\pi}{2}}(2e^x\cos(x))}[/tex]

Use direct substitution.

Hence:

[tex]\displaystyle{\Rightarrow 2e^\frac{\pi}{2}\cos(\frac{\pi}{2}})[/tex]

Recall the unit circle. cos(π/2) is simply 0. Hence:

[tex]\displaystyle{\Rightarrow 2e^\frac{\pi}{2}(0)=0[/tex]

Therefore:

[tex]\displaystyle{\lim_{x\to\frac{\pi}{2}}(2e^x\cos(x))}=0[/tex]

So, our answer is A.

C. (-4,-⅔)

Step-by-step explanation:

Elimination Method:

R - 9S = 2

3R - 3S = -10

I'll solve for X first by eliminating S.

R - 9S = 2

-3(3R - 3S = -10)

R - 9S = 2

-9R + 9S = 30

(Add the equations)

-9R = 32

(Divide both sides by -9)

-9R/-5 = 32/-5

R = -4

Substitute the R value into either equation:

R - 9S = 2

(-4) - 9S = 2 (Add 4 to both sides of the equation)

+4 +4

-9S = 6 (Divide both sides of the equation by -9)

-9S/-9 = 6/-9

S = -6/9

Simplify

S = -2/3

Solution: (-4,-⅔)

Hope this helped

Answer:

3a³ - 6a² - 2

Step-by-step explanation:

X²Y - Z

= a²(3a - 5) - (a² + 2) ← distribute both parenthesis

= 3a³ - 5a² - a² - 2 ← collect like terms

= 3a³ - 6a² - 2

Answer:

its B on edge

Step-by-step explanation:

Answer:

square root of 192

Step-by-step explanation:

12 cos 30 degrees + 2 tan 60 degrees

= 12* (root 3 /2) + 2* root 3  [as cos 30= root 3/2 and tan 60 = root 3]

=6 root 3 + 2 root 3

= 8 root 3

= square root of 64*3

=square root of 192

= square root of k [ where k = 192 = integer]

Trigonometry ratios are used to represent sine, cosine and tangent functions

The value of [tex]\mathbf{12cos(30) + 2tan(60)}[/tex] is [tex]\mathbf{\sqrt {192}}[/tex]

The trigonometry equation is given as:

[tex]\mathbf{12cos(30) + 2tan(60)}[/tex]

In trigonometry,

[tex]\mathbf{cos(30^o) = \frac{\sqrt 3}{2}}[/tex]

[tex]\mathbf{tan(60^o) = \sqrt 3}[/tex]

So, we have:

[tex]\mathbf{12cos(30) + 2tan(60) = 12 \times \frac{\sqrt 3}{2} + 2 \times \sqrt 3}[/tex]

Evaluate all products

[tex]\mathbf{12cos(30) + 2tan(60) = 6\sqrt 3 + 2 \sqrt 3}[/tex]

Add roots

[tex]\mathbf{12cos(30) + 2tan(60) = 8 \sqrt 3}[/tex]

Express 8 as square root of 64

[tex]\mathbf{12cos(30) + 2tan(60) = \sqrt {64} \times \sqrt 3}[/tex]

So, we have:

[tex]\mathbf{12cos(30) + 2tan(60) = \sqrt {64 \times 3}}[/tex]

Evaluate product

[tex]\mathbf{12cos(30) + 2tan(60) = \sqrt {192}}[/tex]

The form is given as:

[tex]\mathbf{\sqrt {k}}[/tex]

By comparison, we have:

[tex]\mathbf{k = 192}[/tex]

Hence, the value of [tex]\mathbf{12cos(30) + 2tan(60)}[/tex] is [tex]\mathbf{\sqrt {192}}[/tex]

Read more about trigonometry ratios at:

https://brainly.com/question/24888715

Answer:

the answer for this question is D

Answer:

Correct answer is actually B

Step-by-step explanation:

I used someone’s answer with their work shown for my test

Answer:

Step-by-step explanation:

Let the shape of the vase be a cylindrical shape

the volume of the cylinder is given as

let the depth be h

[tex]v= \pi r^2h[/tex]

Given

radius r= 5 cm

volume v= 1000 cm

height h= ?

Substituting the values we can find the depth(h)

[tex]1000= 3.142*5^2*h\\1000= 3.142*25*h\\\\1000= 78.55*h\\[/tex]

Dividing both sides by 78.55 we have

[tex]h= \frac{1000}{78.55} \\\h= 12.73[/tex]

to 1 dp h= 12.7 cm

The probability that a student chosen randomly from the class plays basketball or baseball is 0.56. 

We are able to utilize the equation:

P(B or b) = P(B) + P(b) - P(B and b)

where

B speaks to playing ball

and b speaks about playing baseball.

From the given data, we have:

P(B) = 5/27 (the likelihood of playing ball)

P(b) = 12/27 (the likelihood of playing baseball)

P(B and b) = 2/27 (the likelihood of playing both sports)

Substituting these values into the equation, we get:

P(B or b) = P(B) + P(b) - P(B and b)

= 5/27 + 12/27 - 2/27

= 15/27

= 5/9

Hence, the likelihood that an understudy chosen haphazardly from the course plays ball or baseball is 5/9 or around 0.56. 

To know more about probability refer to this :

https://brainly.com/question/24756209

#SPJ1

Answer:

increment :

= 20% × $6000

= $1200

present salary

= $6000 + $1200

= $7200

the answer is B

Answer:

B) 7200 dollars

Step-by-step explanation:

20/100 x 6000 = 1200

6000 + 1200 = 7200

Answer: None

Step-by-step explanation:

y=0 and y=-5 don't have any solutions. When you ask if a pair of equations have a solution, that means there is an intersection of the equations. The 2 equations will meet somewhere, and that is the solution. To find the solution, you set the equations equal to each other.

0≠-5

It is obvious that 0 and -5 are not equal to each other. Therefore, there is no solution. Also, y=0 and y=-5 are horizontal lines that are parallel to each other. They will never meet, which means there will be no intersection. No intersection means no solutions.

Answer:

8x + 1y

Step-by-step explanation:

3(2x - y) + 2y + 2(x + y)

use destributive property

6x - 3y + 2y + 2x + 2y

combine like terms

6x - 3y + 4y + 2x

6x + 1y +2x

8x + 1y

Answer

The chosen topic is not meant for use with this type of problem. Try the examples below.

(4,4) ⋅ (4,4)

(12,-5) - (5,6)

(-5,8) ⋅ (2,4)

Step-by-step explanation:

Answer:

48 students

Step-by-step explanation:

Girls who sing : girls who don't sing = 1 : 2

Let total number of girl be x

Part of girls who sing = (1/3)x

Part of girls who sing = 8

                              [tex]\frac{1}{3}x=8\\\\x =8*\frac{3}{1}\\[/tex]

                             x = 24

Number of girls = 24

Girls : boys = 1 : 1

Number of boys = number of girls

Total students in the show = 24 + 24 = 48

Answer:

4 and 8

Step-by-step explanation:

(a)

f(0) for x = 0 , that is the interval x < 5, thus

f(0) = x + 4 = 0 + 4 = 4

(b)

f(6) for x = 6 , that is the interval 5 ≤ x < 7, thus

f(6) = 8

Answer:

(5,0) is the only solution out of those points

Step-by-step explanation:

If you graph the 2 inequalities you'll notice the point (0,-2) falls on the dotted line, since the line is dotted this can not be a solution as a dotted line entails that anything on that line is not a solution, for the point (3,13) it doesn't fall in a solution for either inequality due to what I just stated, the point (5,0) on the other hand falls in the domain and range of both inequalities.

Answer:

Step-by-step explanation:

correct one is b

Answer:

5/12, 3/8, 5/16

Step-by-step explanation:

Answer:

Step-by-step explanation:

Find the common denominator, in this case 48. Divide 48 by each denominator and multiply that answer to the numerator. You get (48/16)x5, (48/12)x5 and (48/8)x3. So, 3x5, 4x5, and 5x5. So, 15,20, and 25. Then put these over your new common denominator of 48. So you get 15/48, 20/48, and 25/48. Then you can just order them like this, 15/48,20/48,25/48.

Easiest way: Another way is just to type each into your calculator and put the decimals in order of greatest to smallest. So divide 5 by 16. 5 by 12. And 3 by 8.

5/16=.3125

5/12=.4166

3/8=.375.

Then put in order.

Answer:

yes she did make a home run

Step-by-step explanation:

because, doing the math she makes it there just in time

Answer:

(-1, 5), (2, -1), (0, 3)

Answer:

[tex]d=2\sqrt{5}[/tex] units

Step-by-step explanation:

[tex]\text{Distance, }d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\$If ( x_1 , y_1 ) = ( 0 , - 5 )$ and ( x_2 , y_2 ) = ( 4 , - 3 )\\\\d=\sqrt{(4-0)^2+(-3-(-5))^2} \\=\sqrt{4^2+(-3+5)^2}\\=\sqrt{4^2+2^2}\\=\sqrt{20}\\\\d=2\sqrt{5}$ units[/tex]

Answer:

The answer is "4"

Step-by-step explanation:

Given:

[tex]{F(x)= \left \{ {{2x+5\ \ \ \ -6 < x \leq 0} \atop {-2x+3 \ \ \ 0<x\leq4} \right.}[/tex]

The domain was its input (or x values) of its function.  

It begins at -6 (and doesn't include) or ends on +4 (it was included)

The final answer is "4", and value is "[tex]-2x+3 \ \ \ 0<x\leq4[/tex]".