Mathematics Middle School

How many different triangles can be drawn with one 60° angle and two sides measuring 2 inches each?

Answers

Answer 1
2 traingles use 30 degree angles

Related Questions

How can you solve problems involving equivalent expressions?

Answers

I’m pretty sure I️ can help lol
Since you didn’t give he specific questions I️ just do an example.
Say you’re trying to figure out x from 4x+5=2x+33
You basically just move the stuff around until all you have left on one side of the = is x so whatever you do from one side you do to the other.
4x+5=2x+33
-5 -5
4x =2x+28
-2x -2x
2x = 28
/2 /2
x = 14
Hope this is what you were looking for

Answer:

Problems involving equivalent expressions are solved using the rules of algebra. If 2 expressions are equivalent then they are identical in their simplified form.

Given ΔABC: ΔDEF, find x.



7.2
11.25
20
18

Answers

so, since they are similar, so 9:12 and 15:x
to get to 12, you have to multiply 9 by 4/3. so multiply 15 by 4/3 to get your answer, which is 20.

Answer:

a

Step-by-step explanation:

A parasail is 400 feet above sea level m. Write a positive or negative integer that represents the situation

Answers

sea level is 0. Anything above sea level is positive. Anything below sea level is negative.

And since this one is 400 ft above sea level, then it is 400 (positive)

Answer:

[tex]\displaystyle 400[/tex]

Step-by-step explanation:

Anything below sea-level [below 0] is negative [−], and anything above sea-level [above 0] is positive [+].

I am joyous to assist you anytime.

Factor ax^2−ay−bx^2+cy+by−cx^2

Answers

ax^2−ay−bx^2+cy+by−cx^2
[tex]a\left(x^2-y\right)-bx^2+by+cy-cx^2[/tex]
[tex]a\left(x^2-y\right)+b\left(y-x^2\right)+cy-cx^2[/tex]
[tex]\left(x^2-y\right)\left(a-b\right)+cy-cx^2[/tex]
[tex]\left(x^2-y\right)\left(a-b\right)+c\left(y-x^2\right)[/tex]
[tex]\left(x^2-y\right)\left(a-b-c\right)[/tex]

Round each number to the nearest whole number.

What is the best estimate for the sum of 317.38 82.21?

A.
410



B.
400



C.
399



D.
390

Answers

The answer should be c

317.38 + 82.21 = 399.59

.5 rounds up 

ANS is 400

At a local fitness center, members pay an $8 membership fee and $3 for each aerobics class . Nonmembers pay $4 for each Aerobics class. For what number of aerobics classes will the cost for members & nonmembers be the same?

Answers

This problem is an example of solving equations with variables on both sides. To solve, we must first set up an equation for both members and nonmembers. 

Since members pay $3 for each aerobics class, we can represent this part of the equation as 3c. Members also pay a one time $8 membership fee, so we just add the 8 to the 3c: 

3c + 8

Since nonmembers pay $4 for each aerobics class, we can represent this part of the equation as 4c. They do not have to pay a one time membership fee, so our equation will just be: 

4c

To determine when the cost (c) of the aerobics class will be the same for both members and nonmembers, we set the two equations equal to each other: 

3c + 8 = 4c

Then, we solve for c. First, the variables must be on the same side of the equation. We can do this by subtracting 3c from both sides of the equation: 

8 = 1c. 

Last, we divide both sides by 1. So c = 8. 

This means that the cost of classes will be the same for members and nonmembers at 8 classes. If we want to check our answer, we can plug 8 back into each equation: 

3c + 8 
= 3 ( 8 ) + 8
= 24 + 8
= 32

4c
= 4 ( 8 )
= 32

Scientists believe that there is an extremely massive black hole at the center of the Milky Way. How many times more massive than the Sun would a black hole with a mass of 7.36 x 10^36 kg be? The mass of the Sun is approximately 1.99 x 10^30 kg.

A. 3.7 x 10^8
B. 3.7 x 10^6
C. 3.7 x 10^4
D. 3.7 x 10^3

Answers

I got B 
Hope this helps :D

Final answer:

To find out how many times more massive than the Sun a black hole with a mass of 7.36 x 10³⁶ kg is, divide its mass by the mass of the Sun which is approximately 1.99 x 10³⁰ kg. The answer is 3.7 x 10⁶ times more massive than the Sun.

Explanation:

Scientists believe that there is an extremely massive black hole at the center of the Milky Way. To find out how many times more massive than the Sun a black hole with a mass of 7.36 x 10³⁶ kg is, you can divide its mass by the mass of the Sun. So, 7.36 x 10³⁶ kg / 1.99 x 10³⁰ kg = 3.7 x 10⁶ times more massive than the Sun.

Percy is plotting points on a graph. The ratio of y-value to x-value is 2 to 3 for each point. What will be the x-value of a point with a y-value of 18?

Answers

It is 27 because if you do 9 times 2 you get 18 so you would do 9 times 3 which is the value of x, which is equal to 26

Answer: Value of x = 27

Explanation:

Percy is plotting a coordinate on the graph.

Now the ratio of y-value to x-value is 2 to 3 for each point.

Suppose Value of is 3a and y value is 2a

So, the coordinate of the point is (3a,2a)

Now we find the x value of the coordinate when value of y is 18.

2a is same as 18

2a = 18

a = [tex] \frac{18}{2} [/tex]

a = 9.

Now find the x ordinate

put the value of a=9 into 3a

3a = 3(9) = 27

So the final answer is :

Value of x = 27 when value of y = 18

Need help on this question 8 only

Answers

i hope this helps! let me know

Rhonda is playing a board game. The players take turns rolling a pair of number cubes. On her next turn Rhonda must roll a 5 to win the game, but if she rolls a double she gets an extra turn.
a. Explain why the events Rolling a 5 and Rolling Doubles are mutually exclusive.

b. If the probability of rolling a 5 is 1/9 and the probability of rolling doubles is 1/6, what is the probability that Rhonda rolls either a 5 or doubles on her next turn. Express your answer as a fraction in simplest form.

Answers

a) We presume "roll a 5" means rolling the dice so they come up with a total of 5 spots on top. 5 is not an even number, so when 5 is showing, the numbers on the two dice must be different, hence cannot be doubles.

b) Since these events are mutually exclusive, we can simply add their probabilities: (1/9) +(1/6) = 2/18 +3/18 = 5/18.

Use foil to explain how to find the product of (a+b)(a-b). Then describe a shortcut that you could use to get this product without using foil.

Answers

FOIL stands for Front Outter Inner Last

F- multiply the first two terms axa= a^2
O- multiply the two terms on the outside a x -b= -ab
I- multiply the two inner (middle) terms - b x a= ab
L- multiply the last variable in each term= b^2


A shortcut without using FOIL is called the difference of squares and can be rewrote as (a^2-b^2)
Using the FOIL method -
Firsts: a×a= a^2
Outers: a×-b= -ab
Inners: b×a= ab
Lasts: b×-b= -b^2

Combine -
a^2-ab+ab-b^2
= a^2-b^2

This particular pair of binomial brackets with a + and a - in them can be expanded with the difference of two squares:
(a+b)(a-b) = a^2-b^2
This works for binomial brackets with a + and a - in each of them, and where the two terms in each bracket are the sameFor example:
(x+5)(x-5)= x^2-25
So remember,
Difference
Of
Two
Squares,
Abbreviated as D.O.T.S

Jane has a checkbook balance of $68 she then writes two checks for $5 in one 46250 she also deposit $75 she then uses her calculator to determine her new balance in which of the following is a correct series of keys

Answers

68 - 5(2) + 75
68 - 10 + 75
58 + 75
133

Drawing a vowel from letter tiles that spell out MATHEMATICS.

Answers

Well because the question isn’t specified, I can only assume that this is a probability question?
Answer: There are 4 vowels out of the 11 total letters in the word MATHEMATICS. 4/11 is 0.3636... or approximately 36%.
This means that there is a 36% chance of drawing a vowel from the word MATHEMATICS.

Final answer:

Explanation of drawing a vowel from the letters spelling MATHEMATICS focusing on vowels A, E, and I.

Explanation:

Vowels are fundamental in the English language. When drawing a vowel from the letters that spell out MATHEMATICS, we identify the vowels to be A, E, I. Therefore, drawing a vowel from these letters could result in A, E, or I.

If five bags of mulch covers 32 square feet, how many square feet could 16 bags covers?

Answers

Answer:

102.4 square feet

Step-by-step explanation:

(32/5)*16=102.4

Final answer:

One bag of mulch covers 6.4 square feet. Therefore, 16 bags will cover 102.4 square feet.

Explanation:

To find out how many square feet 16 bags of mulch will cover, we need to first determine the coverage of one bag. If 5 bags cover 32 square feet, then one bag covers 32 ÷ 5, which equals 6.4 square feet. Multiplying the area covered by one bag by 16 bags gives us a total coverage, of 6.4 × 16, which equals 102.4 square feet. Therefore, 16 bags of mulch will cover 102.4 square feet.

A bicycle wheel has a radius of 13 inches.

What is the distance the bicycle will travel after 30 revolutions of the wheel?

Use 3.14 for π .

Enter your answer in the box.

Answers

Given the formula for circumference is
[tex]30 \times 2\pi(13)[/tex]

Answer:

2449.2

Step-by-step explanation:

Write -1/6, 5/3, -5/6 in order from least to greatest.

A. -1/6, -5/6, 5/3
B. -5/6, -1/6, 5/3
C. 5/3, -5/6, -1/6
D. -1/6, 5/3, -5/6

Answers

That would be B. -5/6, -1/6, 5/3

Which of the following shows the correct match of the box numbers and the genotype of the offspring?

Answers

Technically a biology question but if you create the chart all 4 types will be Tt because the Male has the genotype of TT so they will each have a large T in each box (like making a multiplication table). and the female has tt so the only possibility is a large T with a small t in all four squares because there are both homogenous genotypes.  (the bottom-most answer is the correct answer)

Answer:

i forgot i mostly think its the last?

Step-by-step explanation:

If f(x)=|9-2x|,for which values of x will f(x)<3?

Answers

i think the answer is -4 if you subsitute x for 3

a projector transforms the image on a computer screen so that it is dilated by a scale factor of 7/2. if the original image in the screen is 10 inches wide, find the new width in inches after it is projected on the wall.

Answers

if i dont fail, i think it should be 35 inches

Answer:35

Step-by-step explanation:

I know the answerr

Exponents and exponential functions unit test
1. -(10)^-1
A)-1/10
B)-1/-1^10
C)1/10
D)10

Answers

-(10)∧-1= -(0.1)=-0.1
10^-1=0.1

Answer:

A


Step-by-step explanation:

We can change the sign of an exponent if we change sides. This means sign of exponent changes when we move the number (along with base) from numerator to denominator or from denominator to numerator.


So 10 to the power -1 will change to 10 to the power 1 if we take the whole thing to the denominator (steps shown below):

[tex]-(10)^-1\\=-\frac{1}{10^1}\\=-\frac{1}{10}[/tex]


Answer choice A is right.

Kerry drove 312 miles on 11 gallons of gas. She had 175 miles left to complete her trip. How many more gallons of gas would she need?

Answers

312/11= 28.36363*175 =6.17 gallons

3 is less than y minus 2.

Answers

Y-2-3

To solve it the answer would be
Y-5

John uses 9 eggs to make 5 burritos. How many burritos can he make with 27 eggs?

Answers

He can make 15 burritos
Hello!

John uses 9 eggs to make 5 burritos.

27 ÷ 9 = 3

Nine goes into seven three times.

5 × 3 = 15

ANSWER:

John can make 15 burritos with 27 eggs.

I have four questions please answer all! With data/evidence

1. A = 0.225 mi2 b= 0.6 mi h= ?

2. A= 4.86 yd2 b= ? H= 1.8 yd

3. A= 63 m2 b= ? H= 12m

4. A= 2.5 km2 b= 5km h= ?

2 means squared, and solve the question marks

Answers

To answer all these questions you will use the formula A= bh. In words this means to find the area you multiply the base times the height. For each of these examples, you are given the area and you have to find the missing dimension. Each of these will be set up as four separate equations that need solved. Here they are 0.225=0.6h, 4.86=1.8b, 63=12b, and 2.5=5h. To solve all four of these and show evidence, you were divided the area by the dimension that you know. 0.225÷0.6, 4.86÷1.8, 63÷12, and 2.5÷5. With any multiplication equation if you know the total, you have to divide to find the missing part. The answers for each of these in order that they are presented our 3.75 miles, 2.7 yards, 5.25 m, and 0.5 km. None of the answers are square units because they are only giving a one dimensional measurement.

1/4 inch represents 3 feet. what is the length of a room with an actual length of 24 feet

Answers

2 inches long because 24÷3=8. 8 times .25 equals 2
The length of a room with an actual length of 24ft is 24ft(.25in/3ft)=2in

HELP NOW I WILL GIVE BRAINLEST!!!
What type of association does the graph show between x and y?

A scatter plot is shown. Data points are located at 1 and 5, 2 and 4, 3 and 3, 4 and 2, 5 and 1, 6 and 0.
Linear positive association
Nonlinear positive association
Linear negative association
Nonlinear negative association

Answers

Answer: Choice C) Linear negative association

-----------------------------------------------------------------------------------------------

The given points are:
(1,5)
(2,4)
(3,3)
(4,2)
(5,1)
(6,0)

The x values are: 1, 2, 3, 4, 5, 6
The y values are: 5, 4, 3, 2, 1, 0
In the same order

As x increases by 1, y decreases by 1
So we have perfect negative linear correlation

Side Note: The equation of the line that goes through all of the points is the equation y = -x+6 which can be written as x+y = 6. This line has a negative slope (slope = -1)

He’s rightAnswer:

Step-by-step explanation:

Need help ASAP. Please! Thank u☺️

Answers

I would range it from 2 to 30.
This is because the lowest value is 2 and the highest value is 30.
Hope this helps!

Solve if you are a genius!

5+3 =158
9+1 =910
8+6 =4814
4+4 =168
Then what’s is 7+3 =????

Answers

5x3=15 then 5+3=8 answer is 158
9x1=9 then 9+1=10 answer is 910
8x6=48 then 8+6=14 answer is 4814
so
7x3=21 then 7+3=10 answer is 2110

The answer is: 7+3 = 2110  

The given question is a typical example of mathematical puzzles. Mathematical puzzles are mathematical problem given to pupils, students for recreational experience and more.

Further Explanation

Mathematical puzzles further enhance the creativity of students, as it deals with their logical reasoning.  

Mathematical puzzles also has do with the practical usage of order of operations i.e. BODMAS (which is an acronym of Bracket, Of, Division, Multiplication, Addition, Subtraction) to derive solutions for existing problems.

It can be observed from the above given mathematical puzzle expression that Multiplication and Addition are in use in that order.

The two figures are multiplied and added together and then placed together to derive a final

5 + 3 = 158

5 x 3 ~ 5 + 3 = 15 ~ 8 = 158

9 + 1 = 910

9 x 1 ~ 9 + 1 = 9 ~ 10 = 910

8 + 6 = 4814

8 x 6 ~ 8 + 6 = 48 ~ 14 = 4814

4 + 4 = 168

4 x 4 ~ 4 + 4 = 16 ~ 8 = 168

Therefore,

7 + 3 = 2110  

7 x 3 ~ 7 + 3 = 21 ~ 10 = 2110

LEARN MORE:

mathematics puzzle https://brainly.com/question/9337345BODMAS rule https://brainly.com/question/2898753

KEYWORDS:

mathematical puzzlebodmasmultiplicationadditiondivision

Temperature in degrees Fahrenheit is equal to 32 more than 9/5 times the temperature in degrees Celsius.One day the high temperature in Edison,NJ,was 95 degrees Fahrenheit.What was the high temperature in degrees Celsius

Answers

95 = 9/5C + 32

63 = 9/5C

9C = 315

C = 35
Degrees Celsius is 35

Which of the following is another way to explain the Distributive Property?

1) With addition and multiplication, it doesn't matter how you group things.

2) With addition and multiplication, the operands can be moved around.

3) Multiplication distributes over addition

Answers

Multiplication distributes over addition
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