1. What do you need to show in order to prove that a number is divisible by 3?
Then, use an example to show your explanation is correct. *

Answers

Answer 1

Answer:

You can divide and see if its devided by 3, and if its not in the times table, you will have a decimal

Step-by-step explanation:


Related Questions

What is an equation in point-slope form of the line that passes through (–3, –1) and has a slope of 2?

Answers

Answer:

y + 1 = 2(x + 3)

General Formulas and Concepts:

Algebra I

Point-Slope Form: y - y₁ = m(x - x₁)  

x₁ - x coordinate y₁ - y coordinate m - slope

Step-by-step explanation:

Step 1: Define

Slope m = 2

Point (-3, -1)

Step 2: Write Function

Substitute variables into general form.

y + 1 = 2(x + 3)

a scientist is running a simulation of a hypothetical city since she wants to explore its environmental impact over time the city's population is increasing 15 percent every year and there are currently 57,000 people what will the population be in 12 years?

Answers

I have no clue if this is correct but the answer I got was 10,260,000

Answer:

203,549 !!!

Step-by-step explanation:

Solve for x plz help!!
4(6x-9.5)=46
:) Thanks to all the people that help me out

Answers

Answer:

x = 3.5

Step-by-step explanation:

Distribute the 4

24x - 38 = 46

Add 38 to both sides

24x = 84

divide by 24

x = 3.5 or 7/2

Answer:

x=7/2

Step-by-step explanation:

What divided by -18 = 23

Answers

Answer:

x= [tex]- \frac{18}{23}[/tex]

Step-by-step explanation:

PLEASE HELP!! Determine whether the triangles are similar. If similar state how (AA~,SSS~, or SAS~), and write a similarity statement

Answers

Answer:

Yes they are similar because of SAS similarity

Step-by-step explanation:

the side lengths are proportional to each other, and the angle in the middle of the sides is the same size, therefore it has Side Angle Side (SAS) similarity.

ΔTSR ~ ΔFEG by the SAS Similarity Theorem

What is the SAS Similarity Theorem?

SAS Similarity Theorem states that two triangles with two pairs of proportionate sides and a pair of included angle are similar to each other.

In the image given, the two triangles have:

Two pairs of proportional sides - TS/FG = TR/FE = 3.A pair of congruent included angles - ∠T ≅ ∠F.

This means they are similar by the SAS Similarity Theorem.

Therefore, ΔTSR ~ ΔFEG by the SAS Similarity Theorem.

Learn more about SAS Similarity Theorem on:

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find the slope of the following 2 points (2,-5), (9,3)

Answers

Answer:

8/7

Step-by-step explanation:

(2,-5) (9,3)

3-(-5)=8 because you apply your keep change change

9-2=  7

so 8/7

The Table represents a Linear Function.

What is the slope of the function?
O -3
O -2
O 3
O 4

Answers

Answer:

The answer is 3

Step-by-step explanation:

I used the equation y/x. (Use the differences between two rows.)

Need help please!!!!!

Answers

Answer:

0 or 5/12

Step-by-step explanation:

with everything subtracted its 0 but with only subtracting 1/6 its 5/12

Estimate 5,860÷2.1≈
i really need help on it.

Answers

Answer: it 2790

Step-by-step explanation:

The value of 5,860÷2.1 is 2790.

What is division?

In easy phrases, the division may be described because of the splitting of a massive institution into smaller companies such that every institution may have the same number of items. it's far an operation used for identical grouping and the same sharing in math.

What are the terminologies used in the division?

dividend, divisor, quotient remainder.

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If y=32 when x=8, find y when x=30.

Answers

Answer: 120

*How to solve*

Step 1: Find how many times larger 30 is than 8

30/8= 3.75

Step 2: Multiply by y

32x3.75=120


Hope this helps comment below for more questions:)

50 POINTS An airplane is traveling at a speed of 240 miles/hour with a bearing of 110°. The wind velocity is 56 miles/hour at a bearing of 325°. What are the plane's actual speed and direction angle? (hint: the direction angle is measured from the positive x-axis in a counter-clockwise direction)
A.
The speed is 179.82 miles/hour, and the direction angle is 100.60°.
B.
The speed is 179.82 miles/hour, and the direction angle is 349.40°.
C.
The speed is 196.77 miles/hour, and the direction angle is 115.60°.
D.
The speed is 196.77 miles/hour, and the direction angle is 349.40°.

Answers

Answer:

the speed is 179.82 miles/hour .and the direction angle is 100.60

I believe you should pick A

How many terms are in the expression below?

-4x + 7 + 2x + 10

Answers

Answer:

3

Step-by-step explanation:

A tank full of water is leaking at a constant rate for 15 minutes. The equation
y=-8x+ 500
describes the amount of water in the tank, where y is the number of liters and
xis the number of minutes that has elapsed since the tank started to leak.
Which statement is true?

A. There were 8 liters in the tank when the leak started, and it is decreasing by 500 liters per minute.

B. There were 8 liters in the tank when the leak started, and it is increasing by 500 liters per minute.

C. There were 500 liters in the tank when the leak started, and it is decreasing by 8 liters per minute.

D. There were 500 liters in the tank after 15 minutes, and it is
decreasina bv 8 liters per minute.

Answers

Answer:

C. There were 500 liters in the tank when the leak started, and it is decreasing by 8 liters per minute.

Step-by-step explanation:

-8x is the rate of the leak and 500 is the initial value for water in the tank.

SERE
Which number line represents the solution set for the inequality 3(8 – 4x) < 6(x – 5)?
1
1
-5
WO
+
4
-4
-3
-2
-1
0
1
2
5
+
-1
+
1
+
2
-5
-4
-3
-2
0
3
4
5
-4
-3
+
1
-5
+
2
-1
+
3
-2
0
4
5
-+
-5
+
-1
-3
+
2
-4
-2
0
1
3
4
5

Answers

Answer:

1.5

Step-by-step explanation:

3(8 – 4x) < 6(x – 5)?

1

1

-5

WO

+

4

-4

-3

-2

-1

0

1

2

5

+

-1

+

1

+

2

-5

-4

-3

-2

0

3

4

5

-4

-3

+

1

-5

+

2

-1

+

3

-2

0

4

5

-+

-5

+

-1

-3

+

2

-4

-2

0

1

3

4

5

This doesn't make any sense

Given the function
f(x)=-1/2(1-x)^2,
find f(-5).

Answers

Answer:

f(x)= -1/2(1-x)^2

replacing x with -5 since -5 was given as the function

f(-5)=-1/2(1-5)^2

according to bodmas we solve what is in the bracket first

f(-5)=-1/2(-4)^2

f(-5)=-1/2(16)

-1/2*16/1

-16/2=-8

What’s the measure of STX?

Answers

Answer: 113

Step-by-step explanation:

47+66=x

113=x

A cake recipe requires 4 and one-half cups of flour to make 1 cake. How many cakes can be made by a baker who has 16 cups of flour?
A. 3
B. 4
C. 40
D. 72

Answers

Answer:

3 cakes

Step-by-step explanation:

Answer:

3.

Step-by-step explanation:

The real answer is 3.8 but since you cannot make .8 of a cake the answer is 3.

(umm can anyone help me please) I’ll give brainlist <3

Answers

Answer:

12

Step-by-step explanation:

8 times 1.5

Which of the following words describe the slope of a vertical line?
a. negative
c. undefined
b. positive
d. zero

Answers

Answer:

Undefined the slope is a slope line

Step-by-step explanation:

It is horizontal straight across

NEED ASAP Triangle XYZ is similar to triangle PDQ. The measures of the angles in triangle XYZ are shown in the table. What is the measure of angle D?

Answers

Answer:

measure angle D = 62

Step-by-step explanation:

as the sum  of measures of triangle =180

then (8x-40)+(4x-10)+(3x+20)=180

15x-30=180

x=(180+30)/15=14

XYZ SIMILAR TO PDQ

Y=D=3*14+20=62

Solve using graphing substitution or elimination in the picture

Answers

Answer:

1) 18 quarters and 30 nickels2) 8 quarters and 12 nickels

Step-by-step explanation:

1) Let quarters be x and nickels be y.

Equations based on given, 48 coins, total of $6 = 600c:

x + y = 4825x + 5y = 600

Substitute y in the second equation, y = 48 - x

25x + 5(48 - x) = 60025x + 240 - 5x = 60020x = 360x = 18

Then value of y is:

y = 48 - 18 = 30

2) Similarly to problem 1.

x + y = 2025x + 5y = 260

Substitution: y= 20 - x

25x + 5(20 - x) = 26025x + 100 - 5x = 26020x = 160x = 8

Then finding y:

y = 20 - 8 = 12

How do i solve tis in need help
slope=2/7 y-intercept=-4

Answers

Answer:

y=2/7x-4

Step-by-step explanation:

Write in Slope intercept form

y=mx+b

m = slope

b = y intercept

x = x intercept

y = (0,-4)

So,

y = 2/7x+(-4)   substitute

y = 2/7x-4

a company makes a cone-shaped container with a height of 15 in. The area of its base is about 78.8 in.2 Approximately what is the volume if the container?

Answers

Answer:

Approximately the volume of cone-shaped container is 393 in³.

Step-by-step explanation:

In an experiment, the variable that is manipulated is called the?
Measurement variable
Explanatory variable
Response variable
Confounding variable

Answers

Response variable.....

Answer:

Explanatory Variable is the right answer it is the variaable being manipulated and observed.

Step-by-step explanation:

What's the probability of drawing a 5 out of a standard deck of 52 cards

Answers

4/52 = 1/13 ... there are four 5 cards in a deck and 52 cards in a standard deck so 4/52 !

What is the value of fraction x plus z plus y over, y, end fraction, when x equals 7, y equals minus 5, and z equals square root of 9 ?

Answers

7+3+(-5)/-5
10-5/-5
5/-5
-1

slope =-5, y-intercept =-2

Answers

Answer:

y = -5x - 2

Step-by-step explanation:

y = mx + b

m = -5

b = -2

Step-by-step explanation:

I am not completely sure what your question is, but if you want to write an equation, you can just plug in the values for m and b to get y=-5x-2. If you wish to graph it, start at (0,-2) because that is your y-intercept. Next, move up 5 units and to the left 1 unit since the slope is negative. Now you have the point (-1,3). Connect the dots to get the graph.

What is y + 5 = 7(x– 8) written in standard form?
Choose 1 answer:
A) x-7y=-61 B)-7x+y=-61 C) x+7y=-61
D) 7x + y = -61

Answers

Answer:

B)-7x+y=61

Step-by-step explanation:

y + 5 = 7(x– 8)

y + 5 =(7xX)(7x-8)

y + 5 =(7x)(-56)

y – 5 =(7x)(-56+-5)

y=7x-7x-61/

-7x+y=-61

ALREADY LATE PLS HELP!!!

Answers

Answer:

36 ounces

Step-by-step explanation:

9 x 4 = 36

1/4=0.25 0.25/9=36 so the answer is 36 sorry if this is wrong hope it helps <3

find the composition of transformations that map ABCD to EHGF

Answers

Answer:

(x - 1, y + 1 )

Step-by-step explanation:

Consider the reflection in the y- axis

A point (x, y ) → (- x, y )

Consider the reflection of point A

A(- 5, 2 ) → A'(5, 2 )

Now A → E after the transformations

E = (4, 3 ), thus

A'(5, 2 ) → E(4, 3 )

(x, y ) → (x + (- 1), y + 1 ) = (x - 1, y + 1 )

The translation rule is (x, y ) → (x - 1, y + 1 ).

What is Translation?

In mathematics, translation is a transformation that moves every point of a figure or a graph the same distance and in the same direction. The object being translated retains its size and shape, but its position changes.

Consider the reflection in the y- axis

A point (x, y ) → (- x, y )

Consider the reflection of point A

A(- 5, 2 ) → A'(5, 2 )

Now A → E after the transformations

E = (4, 3 ), then

A'(5, 2 ) → E(4, 3 )

Thus, the translation rule is (x, y ) → (x + (- 1), y + 1 ) = (x - 1, y + 1 )

Learn more about Translation here:

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