What is the value of the expression below when x = 3 and y = 2? 6x - y

Step-by-step explanation:

what??? I don't understand what are you saying?????? please speak english :(

i wish you could help you but i don't know what you're saying

Answer:

2x-16=10

Step-by-step explanation:

16 less is -16

twice a number is 2x because the number is unknown

Answer: 2n-16= 10

Step-by-step explanation:

Let's break this sentence into parts.

"16 less than": always translates to something -16. Hack: Whenever you see "something less than" you put a subtraction sign and that number on the right side. just like "5 less than" becomes something -5.

'twice a number': 2 times a number's value, or 2 times the number. let's say the number is 4. "twice the number" means to double it's value. 4x2=8. In this case, you  write 2n.

- 2n translates to "2 times a number". A number next to a letter means they're being multiplied.

"is 10": =10. Hack:  "is" always becomes an equals sign.

Combine

16 less than , twice a number, is 10.

2n - 16= 10

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The dollar amount the school will raise is given by the expression 0.25n, where n is the number of students.

A combination of terms through addition, subtraction, multiplication, division, and other operations is known as an algebraic expression (or variable expression).

A connection that compares two numbers or other mathematical expressions inequitably is known as an inequality in mathematics.

Therefore the dollar amount the school will raise is given by the expression 0.25n or [tex]\frac{1}{4} n[/tex] , where n is the number of students.

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Answer:

50

Step-by-step explanation:

Apply PEMDAS to this problem

8 × 5 = 40

Now you are left with: 40÷4×5

You then use PEMDAS from left to right from here

So 40 ÷ 4 would be 10, and now you are left with 10 × 5, which would be 50.

The area occupied by the photograph in terms of x described by the quadratic equation A = x² - 20 · x + 100.

Both the backing card and the photograph are represented by two concentric squares, the area of the square is equal to the square of the side length. The expression for the area occupied by the photograph is described by the following polynomial:

A = l²

A = (x - 10) · (x - 10)

A = (x - 10)²

A = x² - 20 · x + 100

The area occupied by the photograph in terms of x described by the quadratic equation A = x² - 20 · x + 100.

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Answer:

Step-by-step explanation:

the amount of garbage started to increase around 2005 or 2007

Just plot a point anywhere they graph is straight

The standard deviation is 2.24 if the sum of squares for a sample containing 101 items equals 500 option (C) is correct.

It is defined as the measure of data disbursement, It gives an idea about how much is the data spread out.

[tex]\rm SD = \sqrt{\dfrac{ \sum (x_i-X)^2}{n-1}[/tex]

SD is the standard deviation

xi is each value from the data set

X is the mean of the data set

n is the number of observations in the data set.

∑(x(i) - X)² = 500

n = 101

SD = √(500/101-1)

SD = √5

SD = 2.236 ≈ 2.24

Thus, the standard deviation is 2.24 if the sum of squares for a sample containing 101 items equals 500 option (C) is correct.

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Answer:

2.667

Step-by-step explanation:

the thousandths place is the third place after the decimal point, going

0.123

1 is the tenths

2 is the hundredths

3 is the thousands

all you have to do is divide 4 by 15 to get 2.66666667

rounded to the thousands the answer is about 2.667

The equation of the perpendicular line is y = x + 15.

In this problem we need to determine the equation of the line perpendicular to another line, that intersects at the point (x, y) = (- 5, 10). The explicit form of the equation of the line is defined by the following first order polynomial:

y = m · x + b      

Where:

The first line has a slope - 1 and the slope of the second line is:

m' = - 1 / m

m' = 1

Then, the intercept of the second line is:

b = y - m · x

b = 10 - (- 5)

b = 15

The equation of the perpendicular line is y = x + 15.

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Answer: Hi The Answer is 3 (the third one)

Step-by-step explanation: Am not sure if this is correct am taking the test right now

Answer:

all real numbers

Step-by-step explanation:

Florida

Answer:

100°

meron po bang D Wala namn ah

The value of Cos(4π/3) is (-1/2) i.e., negative one half.

The given function is Cosine (Start fraction 4 pi over 3 end fraction) and this can be written simply as,

Cos(4π/3)

On splitting 4π/3 in two parts, this can also be written as

= Cos(π + (π/3))

(π + (π/3)) lies in the third quadrant and in the third quadrant the value of cosine function is negative. So, using quadrant sign for cosine function, this can be written as

= -Cos(π/3)

Now, Substitute the value of Cos(π/3) = 1/2.

= (-1/2)

Cos(4π/3) = (-1/2)

The value of Cos(4π/3) is (-1/2) i.e., negative one half.

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Answer:

It's B

Step-by-step explanation:

Answer:

x = 5

Step-by-step explanation:

All the angles of a triangle add up to 180

83 + 61 + 4x + 16 = 180

160 + 4x = 180

180 - 160 = 4x

20 = 4x

20/4 = x

5 = x

Answer:

See explanation

Step-by-step explanation:

a. f(x)=|x|

b. |x|==> -|x|         ==> f(x) has been flipped over the y-axis.

-|x| ==> -2|x|        ==> Then, f(x) doubled by 2, scale factor of 2

-2|x| ==> -2|x|-3  ==> Finally, f(x) became g(x) when it translated 3 units down

c. Use the transformations in part b to graph

176/2^10 = 0.171875.

n=10, p=1/2, q=1/2

probability of student passes the quiz only if he answers 7 or more than 7 questions correctly and let it be x

P(x)=10C7(0.5)^7(0.5)^3 + 10C8(0.5)^8(0.5)^2 + 10C9(0.5)^9(0.5)^1

+ 10C10(0.5)^10(0.5)^0

=120 /1024 + 45/1024 + 10/1024 + 1/1024

P(x)=176 / 1024

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The value of the expression (3x^5 + y^2)^2 is 9x^10 + 6x^5y^2 + y^4

The expression is given as:

(3x^5 + y^2)^2

Expand the expression

So, we have

(3x^5 + y^2)^2 = (3x^5 + y^2)(3x^5 + y^2)

Expand the bracket

(3x^5 + y^2)^2 = 9x^10 + 3x^5y^2 + 3x^5y^2 + y^4

Evaluate the sum

(3x^5 + y^2)^2 = 9x^10 + 6x^5y^2 + y^4

Hence, the value of the expression (3x^5 + y^2)^2 is 9x^10 + 6x^5y^2 + y^4

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Answer:

16x² + 8x + 1

Step-by-step explanation:

(4x + 1)(4x + 1)

each term in the second factor is multiplied by each term in the first factor, that is

4x(4x + 1) + 1(4x + 1) ← distribute both parenthesis

= 16x² + 4x + 4x + 1 ← collect like terms

= 16x² + 8x + 1

Answer:

16 x 2 + 8x + 1

Step-by-step explanation:

Using the foil method we expanded the polynomial.

Answer: x=6

Step-by-step explanation:

[tex]5x+4x-68=34-8x\\\\9x-68=34-8x\\\\9x-68+8x=34-8x+8x\\\\17x-68=34\\\\17x-68+68=34+68\\\\17x=102\\\\Divide \ both \ parts\ of\ the\ equation\ by\ 17:\\\\x=6\\[/tex]

Your friend should have added 68 to each side of the equation, but instead subtracted 68 from the right side.

[tex]17x=34-68\\17x=-34[/tex]

Divide both parts of the equation by 17:

[tex]x=-2[/tex]

Your answer will be:

y = 9x

y = 2.5x

y = 24x

I hope this helps!

Answer:

[tex]\sqrt{17}[/tex]

Answer:

a)  5.9

b)  4.2

Step-by-step explanation:

Plot the data points on the number line (see attached).

Part (a)

[tex]\begin{aligned}\textsf{Distance between Ben and Kloee} & = \sf \left| Ben - Kloee \right|\\& = \sf \left|-2.65-3\frac{1}{4}\right|\\& = \sf \left|-2.65-3.25\right|\\& = \sf \left|-5.9\right|\\& = \sf 5.9\end{aligned}[/tex]

Part (b)

[tex]\begin{aligned}\textsf{Distance between Middle school and Football field} & = \sf \left| Middle\:school-Football\:field\right|\\& = \sf \left| 1.5-5.7\right|\\& = \sf \left| -4.2 \right|\\& = \sf 4.2\end{aligned}[/tex]

Answer: a, 9x10^9, largest number 900000000

Answer: greatest is A.

Step-by-step explanation:

The number of students who study Indonesian only = 10

Total pupils= 110

Study French = 88

Study Indonesian = 65

Study French and German = 40

Study German and Indonesian = 38

Study French and Indonesian = 26

Study German only = 19

Students who study German only = G - F∩G - G∩I + F∩G∩I

                                                     19= 88-40-38 + F∩G∩I

                                                   F∩G∩I = 9

Students who study all three languages = 9

So the students who study only Indonesian = I - F∩I - G∩I + F∩G∩I

                                                                        = 65- 38-26+ 9

                                                                        = 10

Therefore the number of students studying Indonesian only = 10.

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The complete question is:

In a certain school, there are 180 pupils in Year 7. One hundred and

ten pupils study French, 88 study German and 65 study Indonesian.

Forty pupils study both French and German, 38 study German and

Indonesian, and 26 study both French and Indonesian, while 19 study

German only. Find the number of pupils who study Indonesian only.

Answer:

-2

Step-by-step explanation:

[tex]Rule(s): a\frac{b}{c} = \frac{a \cdot c + b}{c}, \frac{-a}{b}=-\frac{a}{b}, \frac{\frac{a}{b}}{\frac{c}{d}}=\frac{a\cdot \:d}{b\cdot \:c} \\2\frac{2}{3}=\frac{2\cdot 3+2}{3}\\=\frac{8}{3}\\=\frac{-\frac{8}{3}}{\frac{4}{3}}\\=-\frac{\frac{8}{3}}{\frac{4}{3}}\\=\frac{-8\cdot \:3}{3\cdot \:4}\\= \frac{-24}{12}\\= -2[/tex]

Answer:

11/20

Step-by-step explanation:

this fraction is simplified as much as possible and no longer can be simplified. 11/20 is in its simplest form

hope this helps!

Scaling transformation onto the x co ordinate by a factor of 5.

A co-ordinate system represents two points one for x axis and another for y axis in a ordered pair (x,y)

According the given question Point (w, z) is transformed by the rule (w5, z).

Here w represents x co-ordinate points and z represents y co-ordinate points.

We can observe that the x co-ordinate point have been scaled by a factor of 5.We can think of that after this transformation the line has become less steeper from origin.

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Answer: 0.75km

Step-by-step explanation: