Mathematics High School

## Answers

**Answer 1**

**Answer:**

LCM=780

**Step-by-step explanation:**

The least common denominator, also called lowest common denominator (LCD), of 60 and 13 is 780. Here is a math problem example where you need to know the LCD of 60 and 13 to solve: 3/60 + 2/13 = 780

## Related Questions

on a unit circle, what is tan for coordinates (-√2/2, √2/2)?

a.) -1

b.) -√2/2

c.) 1

d.) √2/2

e.)√2

### Answers

**Answer:**

A

**Step-by-step explanation:**

Remember that tangent is the ratio of sine over cosine.

[tex]\tan(\theta)=\frac{\sin(\theta)}{\cos(\theta)}[/tex]

In the unit circle:

Sine refers to the **y-coordinate. **Cosine refers to the **x-coordinate. **

Our x-coordinate is -√2/2 and our y-coordinate is √2/2.

So, substitute -√2/2 for cosine and √2/2 for sine. This yields:

[tex]\tan(\theta)=\frac{\sqrt2/2}{-\sqrt2/2}[/tex]

Since the numerator and the denominator are the same save for a negative, we can cancel them:

[tex]\tan(\theta)=-1[/tex]

So, our answer is A.

**Answer:**

your correct answer cuz is

A

**Step-by-step explanation:**

The point J(-2, 3) is rotated 90° clockwise around the origin. What are the coordinates of the resulting point, J′?

### Answers

**Answer:**

J' (3, 2)

**Step-by-step explanation:**

when a point is rotated 90 degrees clockwise, the point goes from (x, y) to (y, -x). You can imagine this rule or come up with it by doing a rotation on a graph, but really it's just a rule you should memorize.

So, apply (x, y) --> (y, -x) to this point:

(-2, 3) --> (3, 2)

J' (3, 2)

**Answer:**

J' (3, 2)

**Step-by-step explanation:**

edg 2020

WILL GIVE BRAINLIEST

Starfire wanted to buy a new outfit for the big dance. When she went to the store to purchase the dress, it was tagged $35. How much would Starfire have to pay for tax, if sales tax is 9%?

(Please also show work!)

### Answers

**Answer:**

$3.15

**Step-by-step explanation:**

For this, "x" is a multiplication symbol

Option 1: 35x1.09=38.15 (the 1.09 is how u calculate tax btw)

then 38.15-35=3.15

OR

A simpler way:

Option 2: 35x9% (or 35x.09) however u want to put it)

=3.15

Please help! will make brainliest and answer any question in return!!!!

Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's profits last month, where x is the number of sandwich lunch specials sold and y is the number of wrap lunch specials sold. Suppose Sal's total profit on lunch specials for the next month is $1,593. The profit amounts are the same: $2 for each sandwich and $3 for each wrap. In a paragraph of at least three complete sentences, explain how the graphs of the functions for the two months are similar and how they are different.

### Answers

**Answer:**y = -2/3x + 490

Step-by-step explanation:

2x +3y = 1470

Slope intercept form definition: y = mx + b is the slope-intercept form of a line where m is the slope and b is the y-intercept.

2x + 3y = 1470

2x + 3y -2x = 1470 - 2x - Subtract 2x from both sides

3y = 1470 - 2x - Simplify

3y/3 = 1470/3 - 2x/3 - Divide both sides by 3

y = -2/3x + 490 - Simplify

-⅔ is the slope and 490 is the y-intercept

**Step-by-step explanation:**

**Answer:**

bknln

**Step-by-step explanation:**

mrs.jackson gives the table below to her students. 4 26 5 23 6 a in order for the function to be linear, what must a be and why? a=22 because the rate of change is 1. a=20 because the rate of change is 3. a=22 because the rate of change is -1. a=20 because the rate of change is -3

### Answers

Answer:

a=20 because the rate of change is -3

Step-by-step explanation:

26-3 is 23, 23-3 is 20.

Work out the value of z + x

y

### Answers

what is the value of z

what is the value of x

what is the value of y

?

-|-7 + 4|

....................................................................

### Answers

**Answer:**

-3

**Step-by-step explanation:**

find absolute values.

-7 + 4

-3

Hope this helps!

Have a nice day!

If you find my answer helpful

*Pls consider marking my answer as **Brainliest**! It would mean a lot!*

Answer: The answer is -3

Can someone please help me? (You will get brainlest and 18 points)

### Answers

**Answer:**

4 and, 5 conclusion, 6 conjecture, 8 Conditional statement, 10 hypotheses,

11 contrapositive, 12 counterexample,

the rest i dont know srry

Porportionality math

### Answers

**Step-by-step explanation:**

Second option is the answer

can someone tell me which one is wrong please

### Answers

**Answer:**

Circle the 6.

**Step-by-step explanation:**

In the first line, it states: 40 - 2 × 3² + 10.

Remember to follow PEMDAS. PEMDAS is the order of operation, and equals:

**P**arenthesis

**E**xponents (& Roots)

**M**ultiplication

**D**ivision

**A**ddition

**S**ubtraction.

In this case, instead of applying the power (3² = 3 * 3 = 9), the person simply multiplied (3² ≠ 3 * 2 = 6).

Instead, the order should look like:

40 -2 * 3² + 10

40 -2 * (3 * 3) + 10

40 -2 * (9) + 10

40 + (-2 * 9) + 10

40 + (-18) + 10

50 - 18

32

Most likely 32 hopefully helped

You create 15 centerpieces for a party in 5 hours.

A. What is the unit rate?

B. How long will it take you to make 42 centerpiece?

Please please help!

### Answers

**Answer:**

**Step-by-step explanation:**

you create 15 per 5 hours. or 15 centerpieces/5 hours or 3 centerpieces per hour. To make 42, if you make 3 per hour, you would divide 42 by 3, getting 14. It will take 14 hours to make 42 centerpieces.

the quotient of 17 minus 12 and 2

Find the expression

### Answers

Standered form: 2/(17-12)

Answer: 0.4

I hope this helped :)

PLEASE HELP ME ASAP!!!! simplify to create an equivalent expression. 5+7(8r-2) A: 56r+3 B: 56r+9 C: 8r-9 D: 56r-9

### Answers

**Answer:**

**56r-9**

**Step-by-step explanation:**

5+7(8r-2)

5+56r-14

56r-9

The width of a rectangle is 3 less than twice the length, x. If the perimeter of the rectangle is 43 feet, find the dimensions.

### Answers

**Answer:**

**Step-by-step explanation:**

we're given that

[tex]W = 2X - 3\\P = 43\\[/tex]

the perimeter can be defined as

[tex]P = 2X + 2W \\so\\43 = 2X + 2(2X - 3)\\43 = 2X + 4X - 6\\6X = 49\\X = \frac{49}{6}\\ W = 2X - 3\\W = 2(49/6) - 3\\W = 49/3 - 9/3 = \frac{40}{3}[/tex]

The rectangle is

[tex]\frac{49}{6} by \frac{40}{3}[/tex] feet

Please help!!!

Triangle RST will be translated 3 units left and 2 units down. What will the coordinates of the vertices of R'S'T be?

### Answers

R = (1,2)

S = (-2,-1)

T = (2,-1)

Let me know if I got wrong

Find the next three terms of the geometric sequence whose first term is -2 and common ratio equal to -1.

### Answers

-2, 2, -2, 2 etc.

Hope this helps :)

Write an equation in point-slope form for a line that passes through (3, 6) with a slope of - 1− 3.

### Answers

**Answer:**

y-6=-4(x-3)

**Step-by-step explanation:**

Note: I am assuming that the -1-3 means -4, not that it is a typo

Determine which method of proving congruence can be used

### Answers

The answer is option D.

x = the number of students in Janelle's math group.

3x + 5 = 23

Solve the equation to determine how many students are in Janelle's group?

X=

### Answers

Answer: x = 6 or just 6

Step-by-step explanation: You do the opposite of addition, and subtract +5 and 23 to get 3x = 18, then you would divide 3x and 18 by 3 to get x = 6 or just 6.

How do you connect the ideas of congruency and rigid motion? In your own words please

### Answers

**Answer:**

Rigid motions are transformations that maintain congruency. This means that both the pre-image and image will be congruent. This is true because rigid motions do not change the measurements of the sides or angles. Other types of transformations, also called non-rigid motions, like dilations do not maintain congruency.

what is the solution to this problem? 3(2x+1)=2(x+1)+1

### Answers

**Answer:**

x = 0

**Step-by-step explanation:**

**Answer:**

x=0

**Step-by-step explanation:**

6x+3=2x+2+1

6x+3=2x+3

4x=0

x=0

PLEASE HELP ME BRO LITERALLY ANYONE OUT THERE, MAKE SURE TO SHOW WORK BRO

What is the value of x???

### Answers

**Answer: x = 5**

**Step-by-step explanation:**

10x and 130 degrees are supplementary, because they are interior angles and the lines are parallel.

10x + 130 = 180

10x = 50

x = 5

Jamal borrowed $625 from his brother 8 years ago. Jamal repaid his brother in full with $830. What simple annual interest rate did Jamal pay?

A. 4.0%

B. 4.1%

C. 4.2%

D. 4.3%

### Answers

**Answer: b 4.1%**

**Step-by-step explanation:**

B. 4.1%. ...................

Ryan won 123 pieces of

gum playing horseshoes

at the county fair. At

school he gave four to

every student in his math

class. He only has 3

remaining. How many

students are in his class?

### Answers

**Answer:**

30

**Step-by-step explanation:**

**Happy Halloween and hoped this helped!**

**Answer:**

There are 30 students in his math class

**Step-by-step explanation:**

First you subtract the three from 123 because that three he still has. Then you take the 120 and divide it by four since thats how many pieces he gave each student. You are then left with 30 students.

The answer ASAP please

### Answers

-20/27

**Step-by-step explanation:**

Multiply the top denominators

-8•5= -40

Multiply the bottom denominators

9•6=54

So 40/54

Now simplify

-40/54 ÷ 2= -20/27

Does this equation have a solution?

3x - 2 ( x + 10 ) = x - 20

### Answers

**Answer:**

the anwser is 3x-2x-20 im notsure if its right

**Step-by-step explanation:**

**Answer: No this equation doesn't have a solution because x =0 **

**Step-by-step explanation: **

**3x-2(x+10) = x-20**

**3x -2x-20= x-20**

**x-20=x-20**

**x=0 **

A city has 9,322 recycle bins. The city glves half of the recycle bins to its citizens. The rest of the recycle bins are divided into 28 equal groups for city parks. How many recycle blns are left over?

### Answers

**Answer:**

24 trash cans remaining.

**Step-by-step explanation:**

9322 / .5 = 18644

18644/28 groups is 665 r 24

HELPPP Please!!!!!!!

### Answers

**Answer:**

subtract 140 from 166

**Step-by-step explanation:**

There are 11900 films on Netflix. 13% of the films are action. How many films are action?

### Answers

**Answer:**

1,547

**Step-by-step explanation:**

11900*.13 =1547

Simplify square root of 2 multiplied by the cube root of 2 . (1 point) 2 to the power of 1 over 6 2 to the power of 2 over 3 2 to the power of 5 over 6 2 to the power of 7 over 6

### Answers

The third one, 2 to the power of 5 over 6

√2 * 3√2

convert from radical form to exponent form to solve for the same root

( x^m/n = n√x^m )

2^(1/2) * 2^(1/3)

2^{3/6} * 2^{2/6} - find common denominator (6)

6√(2^3) * 6√(2^2) - convert back to radical form

6√(2^3 * 2^2)- combine

6√(2^5)

then convert to exponential form again

~ 2^5/6 ~

**Answer:**

3rd answer.

**Step-by-step explanation:**