somebody help plz its hard for me

Answer:

x=-2 or x=3

Step-by-step explanation:

2(-2)+4=0

3-3=0

Answer:

100

Step-by-step explanation:

10*10

is the same thing as saying

10×10

hope this helped you- have a good day bro cya )

My answer:

−p2−4q+r2 =−(−5)2−4(4)+(−10)2 .

Answer:

Step-by-step explanation:

Answer:

The correct answer is 19 pencils.

Step-by-step explanation:

First, we have to multiply

57 x 4 = 228

Second, we have to divide

228 ÷ 19 = 12

Lastly, we write the answer in a complete sentence.

Each student got 19 pencils if there were no pencils left over.

Hope This Helps!

Answer:

Each student got 12 pencils

Step-by-step explanation:

57 times 4 = 228

228 divided by 19 =12

hope this helps :)

Answer:

8640

Step-by-step explanation:

Take 2.4 hours, And 1 hour is 60 minutes, and 1 minute has 60 seconds, so 1 hour has 3600 seconds, Do one more hour and you have 7200 seconds, Now you need to add another .4 hours, .4 hours is equal to 40 minutes, so how many seconds are in 40 minutes? 1440 seconds are in 40 minutes, so add 7200 and 1440 and you get 8640.

Answer:

30

Step-by-step explanation:

16/54 as a percentage is 29.6296%. round up to get the nearest whole number.

29.6296 rounded up is 30

Answer:

16 = 30% of 54

Step-by-step explanation:

16/54 =x/100

(16/54)(100%) = x

(0.296)(100%) = x

29.6% = x

30% = x

Answer:

I'd say Yev's description is best because it's the most specific to what it actually is in terms of science, while everyone else's descriptions are more like examples of different types and stages of energy, and where it could be found.

Hope this makes sense to ya :)

Answer:

need coordinates of each or side lengths of each to solve

Answer:

Step-by-step explanation:

Answer:

The answer is y = - 1/3x + 6.6

Answer:

17,453.30 feet

Step-by-step explanation:

Answer:

[tex]f( - 1) = - 2[/tex]

Step-by-step explanation:

[tex]f(x) = - {x}^{2} + x \\ f( - 1) = - {( - 1)}^{2} + ( - 1) \\ = - (1) + ( - 1) \\ = - 1 - 1 \\ f( - 1)= - 2[/tex]

I hope I helped you^_^

Answer:

In my thinking, The answer is 80, 160

Step-by-step explanation:

x+2x+35+85 = 360

3x+120=360

3x=360-120

3x=240

x=240/3

Therefore, x=80

and,

2x=2*80

=160

Answer:

StPart 1) The expression is  

Part 2) The area of the schoolyard when x=40 m is A=2,800 m^2

Part 3) The domain is all real numbers greater than zero and less than 75 meters

Step-by-step explanation:

Part 1) Write an expression for A(x)

Let

x -----> the length of the rectangular schoolyard

y ---> the width of the rectangular schoolyard

we know that

The perimeter of the fencing (using the wall of the school for one side) is

so

-----> equation A

The area of the rectangular schoolyard is

---> equation B

substitute equation A in equation B

Convert to function notation

Part 2) What is the area of the schoolyard when x=40?

For x=40 m

substitute in the expression of Part 1) and solve for A

Part 3) What is a reasonable domain for A(x) in this context

we know that

A represent the area of the rectangular schoolyard

x represent the length of of the rectangular schoolyard

we have

This is a vertical parabola open downward

The vertex is a maximum

The x-coordinate of the vertex represent the length for the maximum area

The y-coordinate of the vertex represent the maximum area

The vertex is the point (37.5, 2812.5)

using a graphing tool, see the attached figure

therefore

The maximum area is 2,812.5 m^2

The x-intercepts are x=0 m and x=75 m

The domain for A is the interval -----> (0, 75)

All real numbers greater than zero and less than 75 meters

ep-by-step explanation:

Answer:

C

Step-by-step explanation:

EASY IVE DONE IT

Using conversion of units and the relationship between velocity, distance and time, it is found that the distance between the two stations is of:

c. 454 kilometers

Velocity is distance divided by time, that is:

[tex]v = \frac{d}{t}[/tex]

In this problem:

Then, solving for the distance:

[tex]v = \frac{d}{t}[/tex]

[tex]75.6 = \frac{d}{6}[/tex]

[tex]d = 6(75.6)[/tex]

[tex]d = 453.6[/tex

Rounding up, 454 km, option c.

A similar problem is given at https://brainly.com/question/24316569

Answer:

1. 4.125

2. 9.75

Step-by-step explanation:

Answer:

As follows,

Step-by-step explanation:

1

3x^2y^-1

3x^2/y

2

∛2x^5y^3

2^(1/3)x^(5/3)y^(3/3)

2^(1/3)x^(5/3)y

3

5^(4/4)x^(1/4)y^(3/4)

∜5^4xy^3

Answer:

y = -2x - 5

Step-by-step explanation:

y = is a standard for any equation, as is the use of x as a variable, unless something else is specified.

-2x is the way to denote a slope of -2, and -5 gives you the y-intercept of 5. One point on this line would be (0, -5).

Step-by-step explanation:

remember, dividing one fraction by a second is the same as multiplying the first one with the inverse fraction of the second.

5/6 ÷ 5/24 = 5/6 × 24/5 = 24×5 / 6×5 = 24/6 = 4

Answer:

The inequality is x/5 < 20, and 100 is in the box.

Step-by-step explanation:

x = the amount she spends in June.

So, since she spends an equal amount five times, the amount she spends each time is x/5.

She wants this to be less than 20.

So, x/5 < 20.

Solving for x by multiplying both sides of the equation by yields

x < 5 * 20

x < 100, so that 100 goes into the box.

Answer:

A

Step-by-step explanation:

9 > 3 + 2x

6 > 2x

3 > x

or

x < 3

and that means 3 is NOT included (otherwise there must be a smaller or equal sign). hence A is the right answer.

The graph of the solution set [tex]9 > 3 + 2x[/tex]  is represented by the inequality relation x < 3.

The correct answer is Option A.

Given data:

The inequality is represented as 9 > 3 + 2x

The solution set of the inequality 9 > 3 + 2x can be found by isolating x on one side of the inequality:

Subtract 3 from both sides: 9 - 3 > 2x

Simplify: 6 > 2x

Divide both sides by 2: 3 > x

So, the solution set is x < 3.

Graphically, this represents all the values of x that are to the left of (less than) 3 on the number line. It forms an open interval to the left of 3. The graph consists of all real numbers less than 3, not including 3 itself. In interval notation, this can be written as (-∞, 3).

Hence, the inequality is x < 3.

To learn more about inequality equations, refer:

https://brainly.com/question/11897796

#SPJ3

Answer:

-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29

7-12= -5

7+12= 29

-5 ≤ n ≤ 29 or -5 ≤ n < 30 or -6< n ≤ 29 or -6 < n < 30

either one is acceptable. question was not clear but i did my best! :)

Answer:

9.3$

Step-by-step explanation:

add 4.90 and 4.40 it gives 9.3$

Answer:

18 x 4 = 72

72/2 = 36

36 is the answer

Step-by-step explanation: