Mathematics High School

Helppppppppppppppppp

Answers

Answer 1

Answer:

AD if my calculations are correct

Step-by-step explanation:

Answer 2

Answer:

I think the answer would be CD

Step-by-step explanation:

If I remember correctly, the angles correspond with the line they are opposite of

Related Questions

Pls I need help plsssss

Answers

Answer:

The first option!

Step-by-step explanation:

2 2/3 but brainliest? Thanks!

8 is what percent of 64?

Answers

Answer:

The answer is 12.5

8 is 12.5 percent of 64
Steps:

8:64*100 =

( 8*100):64 =

800:64 = 12.5
All the steps:

Now we have: 8 is what percent of 64 = 12.5

Question: 8 is what percent of 64?

Percentage solution with steps:

Step 1: We make the assumption that 64 is 100% since it is our output value.

Step 2: We next represent the value we seek with x.

Step 3: From step 1, it follows that %100=64

Step 4: In the same vein, x%=8.

Step 5: This gives us a pair of simple equations:
%100=64(1)
x%=8(2)

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have

100%/x% = 64/8

Step 7: Taking the inverse (or reciprocal) of both sides yields

x%/100% = 8/64

x =12.5%
Therefore, 8 is 12.5% of 64.

12 - 3a for a=3. if a=3, 12 - 3a= ?

Answers

Answer:

Step-by-step explanation:

if a=3 then 12-3a = 12-9 = 3

please help this is a prodigy question i'm stuck on

Answers

Answer:

put down the 1/6 and the 1/2 on the number line then calculate the fraction of how far spread they are

Step-by-step explanation:

put down the fractions, calculate how far away they are

2 step explination its 3/6

hope its right................

What is 5×10+4×1+8×110+6×1100+1×11,000 ?

Answers

Answer:

18534 is the answer of this question

The answer is 18,534 yea….

What percent 284 of is 71?

Answers

Answer:

Answer:

30 oranges

Step-by-step explanation:

Total number of apartment in julissa floor = 6

Number of oranges given to each apartment = 5

how many oranges did Julissa give out in all?

Total number of oranges julissa's gave out = Total number of apartment in julissa floor × Number of oranges given to each apartment

= 6 × 5

= 30 oranges

Therefore, total number of oranges julissa gave out = 30

Answer:

Step-by-step explanation:

The numerator of a rational number 8

Answers

Answer:

We conclude that the numerator of a rational number 8 will be 8.

Step-by-step explanation:

We know that any number which can be written in the form p/q is called a rational number.

i.e. p/q

Where p and q are integers and q≠0.

Here:

The numerator is pThe denominator is q

Given the number

As number '8' can be written in the form p/q, so it is a rational number.

i.e. 8/1

Thus,

The numerator = 8The denominator = 1

Therefore, we conclude that the numerator of a rational number 8 will be 8.

The mean of 30 numbers is 18. What will be the new mean, if each observation is
increased by 2.

Answers

Answer:

The new mean will be 20.

Step-by-step explanation:

The Mean Value of a Data Set

The mean or average of a data set is found by adding all numbers and then dividing by the number of values in the set. Written as a formula:

[tex]\displaystyle \bar x=\frac{\sum x_i}{n}[/tex]

Where xi is the value of each data and n is the total number of values.

The mean of n=30 numbers is [tex]\bar x=18[/tex]. If each observation is increased by 2, then xi'=xi+2 and the new mean value will be:

[tex]\displaystyle \bar x'=\frac{\sum x'_i}{30}[/tex]

[tex]\displaystyle \bar x'=\frac{\sum x_i+2}{30}[/tex]

[tex]\displaystyle \bar x'=\frac{\sum x_i}{30}+\frac{\sum 2}{30}[/tex]

The sum of 30 times 2 is 60, thus:

[tex]\displaystyle \bar x'=18+\frac{60}{30}=18+2=20[/tex]

The new mean will be 20.

What will the date be in 2 months and 3 weeks? current date: December 13, 2020.

Answers

Answer: March 6th, 2021

Please help me with this.
Write the expression 8x^2y + 3xy^2 - 2xy - x^2y + 3xy - 5xy^2 in simplest form.
Then, answer the following questions using complete sentences:
a. How many terms are in the simplified expression?
b. How many of the terms in the simplified expression are positive?

Answers

Answer:

[tex]7x^{2} y-2xy^2+xy[/tex]

Three terms.

Two terms are positive.

Step-by-step explanation:

[tex]8x^2y + 3xy^2 - 2xy - x^2y + 3xy - 5xy^2[/tex]

Group like terms

[tex]=8x^{2} y-x^{2} y+3xy^2-5xy^2-2xy+3xy[/tex]

Add similar elements: [tex]8x^{2} y-x^2y=7x^2y[/tex]

[tex]=7x^2y+3xy^2-5xy^2-2xy+3xy[/tex]

Add similar elements: [tex]3xy^2-5xy^2=-2xy^2[/tex]

[tex]=7x^{2} y-2xy^2-2xy+3xy[/tex]

Add similar elements: [tex]-2xy+3xy=xy[/tex]

[tex]=7x^2y-2xy^2+xy[/tex]

[tex]7x^2y[/tex] and [tex]-2xy^2[/tex] and [tex]xy[/tex] are the three different terms.

Only [tex]7x^2y[/tex] and [tex]xy[/tex] are positive terms, thus making two positive terms.

Which point in the graph is on f(x)=3x5^x

Answers

Answer:???

Step-by-step explanation:

Answer:

(1,15)

Step-by-step explanation:

twice the difference of a number and 3 is 5.

Answers

Answer:

2(3-n)=5

Step-by-step explanation:

which are equivalent to 3
-
4

Answers

Answer: 9/12 is equivalent to 3/4.

Explanation: 3 times 12 = 36 and 4 times 9 = 36.

Hope this helps!

9/12 is equivalent

Hope that helps

Solve Each Equation show work

7. |n| - 4 = - 3

8. -3 |x|= - 18

Answers

Answer:

1. n is 1 or -1

2. x is 6 or -6

Step-by-step explanation:

1. |n| -4 = -3

|n| = -3 + 4

|n| = 1

so n = 1 or - 1

2) -3|x| = -18

divide both sides by -3

|x| = -18/-3

|x| = 6

so x = -6 or 6

Change the fraction to an equivalent fraction using multiplication.

$\frac{5}{7}=\frac{?}{21}$

Answers

Answer:

[tex]\frac{5}{7\\}[/tex] * [tex]\frac{3}{3}[/tex] = [tex]\frac{15}{21}[/tex]

Step-by-step explanation:

To get an equivalent fraction, we multiply by a fraction that is equal to one. The purpose is to alter the denominator of the fraction. To get from a denominator of 7 to 21 we multiply by 3. Therefore we will multiply 5/7 by 3/3 to get the new equivalent fraction with a denominator of 21.

Answer:

a0 - 15

Step-by-step explanation:

Differentiate Vx(x + 2) with respect to x.

Answers

Answer:

[tex]y'= \frac{3x+2}{2\sqrt{x} }[/tex]

General Formulas and Concepts:

Calculus

The derivative of a constant is equal to 0

Basic Power Rule:

f(x) = cxⁿf’(x) = c·nxⁿ⁻¹

Product Rule: [tex]\frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)[/tex]

Chain Rule: [tex]\frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)[/tex]

Step-by-step explanation:

Step 1: Define

[tex]y=\sqrt{x} (x+2)[/tex]

Step 2: Rewrite

[tex]y=x^{\frac{1}{2} } (x+2)[/tex]

Step 3: Differentiate

Product Rule [Basic Power/Chain Rule]: [tex]y'= \frac{1}{2} x^{\frac{1}{2} -1}(x+2)+x^{\frac{1}{2} }(1)[/tex]Simplify: [tex]y'= \frac{1}{2} x^{\frac{-1}{2}}(x+2)+x^{\frac{1}{2}}[/tex]Rewrite: [tex]y'= \frac{x+2}{2\sqrt{x} } + \sqrt{x}[/tex]Add: [tex]y'= \frac{3x+2}{2\sqrt{x} }[/tex]

Which expression is equivalent to
2(3g-4)-(8g + 3)?
1) -2g - 1
2) -2g - 5
3) -2g -7
4) -29 - 11

Answers

Answer:

4) -2g - 11

Step-by-step explanation:

2(3g-4)-(8g + 3) =

6g - 8 - 8g - 3 =

- 2g - 11

Which equation is equivalent to x + 2y = 6?
y = -x + 6
B
y = -5x – 6
y = -x + 3
y = -x + 3

Answers

Answer:

y = -x + 6

Step-by-step explanation:

you will carry the character "X" to the right hand side making it "-x"

Equation x + 2y = 6 is equivalent to y = 3 - x/2

What is an equation?

An equation is a combination of different variables, in which two mathematical expressions are equal to each other.

The given equation is,

x + 2y = 6,

Subtract x from both the sides,

x + 2y - x = 6 - x

2y = 6 - x

Divide both the sides by 2,

y = 3 - x/2

The equation x + 2y = 6 can be expressed as y = 3 - x/2.

To know more about Equation on:

https://brainly.com/question/187506

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Which number is a solution of the inequality?

8< x ( 7- x)
A. 2
B. 8
C. –1
D. 0

Answers

Answer:

8< (2) ( 7- (2)) = 8<10 which is true

so A. is the answer

Step-by-step explanation:

Plainfield Community Center is buying new seating for their building. They want to purchase a combination of stools and chairs. Stools cost $50 and chairs cost $65. The center cannot spend more than $3000.

Which inequality represents all possible combinations of s stools and c chairs?

50s+65c≤3000

50c+65s≥3000

50s+65c<3000

50c+65s≤3000

Answers

Answer:

D) 50s + 65c ≤ 3000

Step-by-step explanation:

50s represents the stools and 65c represents the chairs

you can't go over 3000 and so this is the only answer that makes sense.

Answer:

The answer is D) 50s + 65c ≤ 3000!

Step-by-step explanation:

I just took the test and i got 100%. Hope this helps! :]

if y directly with x, and y= -20 when x=3, what is y when x=15?

Answers

Step-by-step explanation:

you can ask questions for clarification

find the equations that describe the circle of radius 3 centered at (9, 2, 1) that is parallel to the xy-plane.

Answers

The equation that describe the circle of radius 3 centered at (9, 2, 1) that is parallel to the x y-plane is (x - 9)² + (y - 2)² = 9.

We know that the given coordinates correspond to a sphere.

The x, y coordinates for our search for a circle parallel to the x-y plane are (x, y) = (9, 2)

The circle's standard equation is (x - h)²+ (y - k)² = r², where h and k are the circle's x and y coordinates, respectively, and r is its radius.

So, we have:

h = 9 ;

k = 2 ;

r = 3;

the solution is (x - 9)² + (y - 2)² = 9.

To learn about the equation of circle, visit: https://brainly.com/question/8509628

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Part 1: Students performed in a play on a Friday and a Saturday. For both performances, adult tickets cost a dollars each and student

tickets cost s dollars each.

On Friday, they sold 125 adult tickets and 65 student tickets, and collected $1,200. On Saturday, they sold 140 adult tickets and 50

student tickets, and collect $1,230.

This situation is represented by this system of equations:

125a +65 s = 1,200

140a +505 = 1,230

What could the equation 265a+115s=2,430 mean in this situation?

Part 2: The solution to the original system is the pair a=7 and s=5. Explain why it makes sense that this pair of values is also the solution to the equation 265a+115s=2430.

Answers

Answer:

Sum of the two separate equations.

The values satisfies the equation

Step-by-step explanation:

Given the equations for the two separate days :

125a +65 s = 1,200 - - - Friday

140a +50s = 1,230 - - - Saturday

265a+115s=2430 means the addition of the two separate equations which means the overall sales for the two days in one single equation.

Because, Inputting the solution, satisfied the equation:

a = 7 ; s = 5

265a+115s=2430

265(7) + 115(5) = 2430

1855 + 575 = 2430

29. JK, given J(-3, 5) and K(2, -5)
Domain
Range

Answers

Answer:

I think, the domain would be the x values and range would be the y values.

Domain - [-3 , 2]

Range - [-5 , 5]

I hope you get this right.

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