Help please!! I’ll give brainliest to those who explain!! :)

Answer:

4,3,

-2,5

-4,-5

Step-by-step explanation:

Substitute the number for the variable in the equation. Simplify the expressions on both sides of the equation. Determine whether the resulting equation is true. If it is true the number is a solution

Answer:

B+J = 100

Soccer ball cost  $40

Soccer Jersey cost $60

Step-by-step explanation:

Let soccer ball be B and soccer Jersey be J

so, B+J = 100

since each cost is a whole dollar,

Soccer ball cost " $40

Soccer Jersey cost $60

Answer:

x ≈ 31.8

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + 12² = 34²

x² + 144 = 1156 ( subtract 144 from both sides )

x² = 1012 ( take square root of both sides )

x = [tex]\sqrt{1012}[/tex] ≈ 31.8 ( to the nearest tenth )

Answer:

20.8

Step-by-step explanation:

[tex]24 = \sqrt{ {12}^{2} + {x}^{2} } [/tex]

[tex] {24}^{2} = 144 + {x}^{2} [/tex]

[tex]576 - 144 = {x}^{2} [/tex]

[tex] {x}^{2} = 432[/tex]

x=20.8

Answer:

105 millimeters

Step-by-step explanation:

Answer:

[tex]\mathrm{True\:for\:all}\:x[/tex]

Step-by-step explanation:

[tex]\left(2x+3y\right)^2-24xy=\left(2x-3y\right)^2[/tex]

[tex]\left(2x+3y\right)^2-24xy[/tex]

[tex]=4x^2+12xy+9y^2-24xy[/tex]

[tex]=9y^2-12xy+4x^2[/tex]

[tex]\left(2x-3y\right)^2[/tex]

[tex]a=2x,\:\:b=3y[/tex]

[tex]=\left(2x\right)^2-2\cdot \:2x\cdot \:3y+\left(3y\right)^2[/tex]

[tex]=4x^2-12xy+9y^2[/tex]

[tex]9y^2-12xy+4x^2=4x^2-12xy+9y^2[/tex]

[tex]\mathrm{Subtract\:}9y^2\mathrm{\:from\:both\:sides}[/tex]

[tex]9y^2-12xy+4x^2-9y^2=4x^2-12xy+9y^2-9y^2[/tex]

[tex]\mathrm{Simplify}[/tex]

[tex]-12xy+4x^2=4x^2-12xy[/tex]

[tex]\mathrm{Subtract\:}4x^2-12xy\mathrm{\:from\:both\:sides}[/tex]

[tex]-12xy+4x^2-\left(4x^2-12xy\right)=4x^2-12xy-\left(4x^2-12xy\right)[/tex]

[tex]\mathrm{Simplify}[/tex]

[tex]0=0[/tex]

[tex]\mathrm{Both\:sides\:are\:equal}[/tex]

[tex]\mathrm{True\:for\:all}\:x[/tex]

X = - 3

Y = 2

2^ x^ y^

=2^ (-3)^ (2)^

= (-6)^(2)

Answer:

The answer is 8^4+4. The last one

[tex]slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ f(x)=18000(0.52)^x \qquad \begin{cases} x_1=4\\ x_2=8 \end{cases}\implies \cfrac{f(8)-f(4)}{8-4} \\\\\\ \cfrac{[18000(0.52)^8]~~ - ~~[18000(0.52)^4]}{4}~~\approx ~~\cfrac{-1219.86}{4}~~ \approx ~~ -304.97[/tex]

notice, the rate is negative, because the car is losing value as the time moves on.

Answer:

Possible rational zeroes are [tex]\pm1,\pm2,\pm3,\pm6,\pm9,\pm18[/tex]

Step-by-step explanation:

The rational zero theorem states that potential zeroes of a given polynomial function written in descending order are equal to [tex]\pm\frac{factors\: of\: the\: constant\: term}{factors\: of\: the\: leading\: coeficient\: term}[/tex]

Answer:

Step-by-step explanation:

The last statement : "The customers surveyed are not representative of all the customers who come to the mall".

For instance, if only half the mall want the mall to open earlier, but then out of the 20 people that we randomly picked, 15 of them are in the half, we could go to a wrong conclusion that most of the people want the mall to open earlier.

to fix the problem, you might just want to increase the area of the survey next time, or get more people to be in it, etc.

Answer:

blank 1 - 41 .. 47 - 6

blank 2 - 44 .. 44 + 3

-

+ 3 – 6 + 3 – 6 + 3 - 6

Answer:

25/120 simplified to lowest terms is 5/24.

Step-by-step explanation:

in percentage its 20.83.

mark me brainlist

Answer:

C

Step-by-step explanation:

"At least 75" means Erin needs a score that is 75 or more.  Her score should be equal to or greater than 75.

The number line that shows this is C because the point at 75 is filled in (showing that 75 is included), and the ray (arrow) extends to the right indicating numbers larger than 75.

(a) Air bounce: 37 <  x < 61

Tide pool climb:   [tex]x\leq 39[/tex]

(b) look at the uploaded diagram

(c) 37 < x [tex]\leq 39[/tex]

According to the p-value, the correct option regarding the decision of the test hypothesis is:

v. No, because 0.283 > 0.05.

At the null hypothesis, we test if the proportion is still of 0.53, that is:

[tex]H_0: p = 0.53[/tex]

At the alternative hypothesis, we test if it has increased, that is:

[tex]H_1: p > 0.53[/tex].

In this problem, the p-value is of 0.283 > 0.05, hence there is not sufficient evidence to conclude, at the significance level of a = 0.05, that the proportion of all car owners in the United States who own American-made cars has increased from what it was ten years ago, which means that option V is correct.

More can be learned about p-values at https://brainly.com/question/16313918

Answer:

Step-by-step explanation:

Permutation and combination is very important in our daily life. By using it, we can already distinguish or identify the different possible ways of the things that we get or have.

Permutation refers to the different possible arrangements of a set of objects and order is very important while combination is the number of ways of selecting from a set when the order is not important.

Which of the following situations does NOT illustrate combination?

a. Selecting 2 songs from 10 choices for an audition piece

b. Fixing the schedule of a group of students who must take exactly 8 subjects

c. Enumerating the subsets of a set

d. Identifying the lines formed by connecting some given points on a Plane

In this situations, we can determine if it is all combination or not. Let's find it out.

a. Selecting 2 songs from 10 choices for an audition piece - this situation does not require any order or arrangement. That's why letter A illustrates combination.

b. Fixing the schedule of a group of students who must take exactly 8 subjects - in fixing and arranging the schedule of a group of students, it must have to be in order so that they can determine their subjects every hour or period and everyday. The schedule must be arrange properly so that the students must not get confused. That's why in this situation the order and arrangement is very important and it shows the concept of permutation not combination.

c. Enumerating the subsets of a set - in enumerating we are not required to make it in order. We can list the subsets of a set in any order, that's why letter C illustrates combination.

d. Identifying the lines formed by connecting some given points on a Plane - we can connect different and many given points in any directions to have a Plane. It is not required to connect all the points in order so that we can form a Plane. Also, in identifying the lines, we can write and list it in any order and that the order is not important.

In conclusion, the situation that does NOT illustrate combination is situation B, because it is more on the concept of permutation not in combination.

Answer:

1 cm

Step-by-step explanation:

You see, if the polygon is rectangular, it has 4 sides, and if the perimeter is 4cm, 4 divided by 4 is one.

Step-by-step explanation:

Let,

[tex](x+9) \div 3=48[/tex]

[tex]x+9=48\times 3 [/tex]

[tex]x+9=144 [/tex]

[tex]x=144-9 [/tex]

[tex]x=135 [/tex]

Therefore,

The number = 135

Answer:

the answer is for that question is b

Answer:

need to replace x for 6

Step-by-step explanation:

Please add the function

you need to replace x for 6

example

2x-4

2*(6)-4

12-4=8

Answer:

16 cm

Step-by-step explanation:

A right triangle, with the hypotenuse = 18, one side = 7, and the other side = x.

Since this is a right triangle, use the pythagorean theorem to find the value for x.

let a = 7 for one side, and let c = 18 for the hypotenuse. And, let c = x for the other side.

The pythagorean theorem is: c^2 = a^2 + b^2.

18^2 = 7^2 + x^2324 = 49 +x^2

x^2 = 324 - 49 = 275So, x = sqrt(275) = 16.5 cm

Answer:

B

Step-by-step explanation:

It passes the vertical line test. Going up and down it doesn't touch the line at two separate points at any time.

Answer:

17 degrees

Step-by-step explanation:

94 = 60 + 2x

94 - 60 = 2x

34 = 2x

x = 17 degrees

Answer:

V = 564.2 m^3

Step-by-step explanation:

The volume of a cone is given by

V = 1/3 pi r^2 h  where r is the radius and h is the height

V = 1/3 pi (7)^2 (11)

V =539 /3 * pi

Letting pi be approximated by 3.14

V = 564.1533333 m^3

Rounding to the nearest tenth

V = 564.2 m^3

Answer:

564.512 m³

Step-by-step explanation:

Formula to find the volume of a cone is :

Volume = [tex]\frac{1}{3}[/tex] π r² h

Here,

r = radius = 7 m

h =  height = 11 m

Let us solve now.

Volume = [tex]\frac{1}{3}[/tex] π r² h

Volume = [tex]\frac{1}{3}[/tex] π ×7² × 11

Volume = [tex]\frac{1}{3}[/tex] π × 49 × 11

Volume = [tex]\frac{1}{3}[/tex] π × 539

Volume = [tex]\frac{1}{3}[/tex] × 1693.538

Volume = 564.512 m³

Hope this helps you :-)

Let me know if you have any other questions :-)

Answer:

43°

Step-by-step explanation:

A triangle has a total angle of 180° and we can use it to find the answer.

The attachment is a visualization of the triangle.

In order to find angle T, we can use the triangle formula to find t.

[tex] {180}^{o} = r + s + t[/tex]

By substituting r and s, we will get

[tex] {180}^{o} = {85}^{o} + {52}^{o} + t[/tex]

Hence, we can find T, which is

[tex]t = {180}^{o} - {85}^{o} - {52}^{o} = {43}^{o} [/tex]

Answer:

57.2 units^2

Step-by-step explanation:

The coordinates provided form a parallelogram, not a rectangle.    See the attached image for a diagram of EFGH.  The area of a parallelogram is given by:

Area = (Base) x (Height)

The attachment explains an approach of using right triangles to find the base and height of the parallelogram.  

I'm not confident this was the best approach, so I hope someone would comment if a simpler solution is available.

Answer:

130 i think

Step-by-step explanation:

2(58+7)

58+7+65x2=130