Someone help me I don’t understand !

Answer:

x<18

Step-by-step explanation:

2+x<20

Answer:

(-5, 4)

Step-by-step explanation:

x^2 + x < 20 can be rewritten as a quadratic in standard form:  x^2 + x - 20 < 0.  Recognize that the graph of x^2 + x - 20 is that of a parabola that opens up.  Because the y-intercept (0, -20) is below the x-axis, we know for certain tht the graph intersects the x-axis in two places.  Our job is to determine the two horizontal intercepts, which in turn determine the solution set.

x^2 + x - 20 = 0 factors as follows:  (x + 5)(x - 4) = 0, whose roots are -5 and 4.

These two roots form 3 intervals:  (-infinity, -5), (-5, 4) and (4, infinity).   We now must identify on which intervals x^2 + x - 20 is less than 0 (that is, on which intervals the graph is below the x-axis).  Choose three test values for x:  the first could be -6 (which is in the set (-infinity, -5) ); x^2 + x - 20 is + there, and so the graph is above the x-axis and x^2 + x - 20 is positive.  Reject this.  

Next, test x = 0; x^2 + x - 20 is negative there, meaning that x^2 + x - 20 < 0 and that x^2 + x < 20.  Thus, the solution is (-5, 4).  It can be shown that x^2 + x - 20 is positive again for x-values within the interval (4, infinity).

Evaluating

Answer:

-3, and 1

Step-by-step explanation:

-3 is the coefficient of h 1 is the co efficient of h

Answer:

it equals .85 hope this helps!

Step-by-step explanation:

Answer:

598 possibly because you multiply 46 x 13

Answer:

a) third degree trinomial

Step-by-step explanation:

The degree of a polynomial is the same as the degree of the term of the polynomial with the highest degree. The degree of a term is the sum of all the exponents of the variables of the term. Remember that a variable such as x, or y, or z has degree 1.

Now we look at the degree of each term:

2x: degree 1 (since x is the same as x^1)

10x^2: degree 2

-x^3: degree 3

The term with highest degree is the last term which has degree 3, so the degree of the polynomial is 3.

The polynomial has 3 terms, so it is a trinomial.

Answer: a) third degree trinomial

Answer:

2.4 or 12/5 or 2 2/5

Step-by-step explanation:

Answer:

The third one

Step-by-step explanation:

Answer:

the 3rd option

Step-by-step explanation:

because im smert

Answer:

48

Step-by-step explanation:

Do 96/2=48

Answer:

Step-by-step explanation:

The question is not displaying correctly.

4x·3x = 12x²

Answer:

3x^2+10x-48

Step-by-step explanation:

(3x-8)(x+6)

3x*x+18x-8x-48

3x^2+10x-48

Answer:

C

Step-by-step explanation:

Answer: i dont know lol i just need points

Step-by-step explanation:

Answer:

Rly lazy man.....

Step-by-step explanation:

1/2*l*w is the area of triangle, plug in values...

1/2*4.5*6.6

14.85 square feet is the area

Answer:

A=14.85

Step-by-step explanation:

[tex]A=\frac{ab}{2}[/tex]

"ab' are the lengths of the sides

[tex]A=\frac{(4.5)(6.6)}{2} \\\\A=\frac{29.7}{2} \\\\A=14.85[/tex]

Hope this helped and answered your question! Have a great day/night!

Answer:

[tex]y = {x}^{2} - 11x + 30[/tex]

Answer:

x = 24

Step-by-step explanation:

[tex]20 - \frac{x}{3} = \frac{x}{2}[/tex]

[tex]40 - \frac{2x}{3} = x[/tex]

[tex]120 - 2x = 3x\\120 = 5x\\x = 120 /5\\x = 24[/tex]

Answer:

Step-by-step explanation:

An improper fraction is a fraction that the numerator is greater than the denominator. As for a mixed fraction, that is a whole number with a fraction next to it.

Answer:

100%

Step-by-step explanation:

Let  p = percent of cashews in first mix

2p = lb. of cashews in first mix

30(.20) =  6 = lb. of cashews in second mix

32(.25) =  8 = lb. of cashews in the combined mix

So,

lb. of cashews in first mix +  lb. of cashews in second mix = lb. of cashews in the combined mix

2p + 6 = 8

2p = 2

p = 1 = 100%

Answer:

100%

Step-by-step explanation:

I solved it and it was correct lol

Answer:

x= 94.79

Step-by-step explanation:

x= 87.3+7.59

x= 94.79

Answer:

6 gallons of gas an hour

Step-by-step explanation:

pls mark brainliest if correct

Answer:

6 gallons used per hour

Step-by-step explanation:

you would divide 48 by 8 because Mr. Wade used 48 after 8 hours.

Answer:

Yes, the diagonals could be 6 and 7 in. In a parallelogram, only the opposite sides of the parallelogram are congruent.

Step-by-step explanation:

In a parallelogram, the diagonals bisect each other, so you can set the labeled segments equal to one another and then solve for . \displaystyle 20 - 3x = 2x - 4 \rightarrow 24 = 5x \rightarrow 4.8 = x. Then, substitute 4.8 for in each labeled segment to get a total of 11.2 for the diagonal length.

Step-by-step explanation:

Perimeter means the sum of all the three side of triangle perimeter= x + x+ 5 + x +7 =3x +12

Answer:

D= It is the total number of data points in the data set, which is also the sum of the row totals or the column totals.

Step-by-step explanation:

Answer:

f= −5

Step-by-step explanation:

Answer:

x=1/6

Step-by-step explanation:

since the base is the same, condense the equation

from log m base a=log n base n, m=n

Answer:

First that's a  quiz. Lol

Step-by-step explanation:

It is the 2'nd answer.

Your Welcome.

Answer:

Number of cupcakes = 2

Number of cookies = 5

Step-by-step explanation:

Let [tex]x[/tex] denotes the number of cupcakes and [tex]y[/tex] denotes the number of cookies.

Abigail bought $11.25 worth of cupcakes and cookies such that each cupcake costs $3.75 and each cookie costs $0.75.

[tex]3.75x+0.75y=11.25[/tex]

At [tex]x=0;[/tex] [tex]0.75y=11.25[/tex]

[tex]y=\frac{11.25}{0.75} =15[/tex]

At [tex]y=0;3.75x=11.25[/tex]

[tex]x=\frac{11.25}{3.75}=3[/tex]

So, plot the points [tex](0,15)\,,\,(3,0)[/tex]

Also,

Abigail bought a total of 7 cupcakes and cookies altogether.

[tex]x+y=7[/tex]

At [tex]x=0;0+y=7[/tex]

[tex]y=7[/tex]

At [tex]y=0;x+0=7[/tex]

[tex]x=7[/tex]

So, plot points [tex](7,0)\,,\,(0,7)[/tex]

From the graph, solution is [tex](2,5)[/tex]

Number of cupcakes = 2

Number of cookies = 5

Answer:

d

Step-by-step explanation:

Answer:600 students

Step-by-step explanation:

Answer:

There are 600 students participating. The operation you have to carry out is 800 × .75 = 600.

Or you can simply divide 800÷4= 200. 3/4=200×3. The percentage of students is 3/4 that would be 600 students participating.

Answer:

the volume is 57600pi, also simplified as 180,956 ft^3 to the nearest whole number

Step-by-step explanation:

hope it helps