Mathematics Middle School

How many triangles can you make if you are given these three lengths for sides

Answers

Answer 1

Answer:

a lot of triangles

Step-by-step explanation:

hope this helps please give me brainiest

Answer 2

Answer:

In traditional power stations, the original energy source spins a turbine which connects to an electric generator. The generator converts mechanical energy into electrical energy. This working is based on which fundamental principle of physics?

A.

Newton’s law

B.

Ohm’s law

C.

Stoke’s law

D.

Faraday’s law

Step-by-step explanation:

Related Questions

The perimeter of the rectangle below is 94 units. Find the value of x.

Answers

Answer:

The value of x = 9 units

Step-by-step explanation:

The complete question is attached to this solution.

The perimeter of a rectangle is given as

P = 2 (L + B)

L = Length of the rectangle = 3x - 1

B = Breadth of the rectangle = 2x + 3

P = Perimeter of the rectangle = 94 units

94 = 2 [(3x - 1) + (2x + 3)]

3x - 1 + 2x + 3 = (94/2) = 47

5x + 2 = 47

5x = 47 - 2 = 45

5x = 45

x = (45/5) = 9 units

Hope this Helps!!!

The perimeter of the rectangle below is 94 units. Find the value of x.

in the xy-coordinate plane, the points (4, 2) and (-1, k) are on a line that is perpendicular to the line y = 2x + 1. What is the value of k?

Answers

Answer: The value of x is 7/5

The value of x is 5/7

please help 20 points

please help 20 points

Answers

Answer:

5/6

Step-by-step explanation:

subtract 3 from 18 to get the present people.

Hello !
There is 3 people missing out of 18, so 15 students are present.
The ratio is \(\frac{15}{18}=\frac{5}{6}\).

Have a nice day ;)

Simplify -15- |-7.5|

Answers

Answer:

-22.5

Step-by-step explanation:

-15- |-7.5|

after taking the absolute value off, -7.5 would become positive 7.5. But then the negative outside the absolute value makes it negative again.

-15-7.5

=-22.5

The simplified expression -15 - |-7.5| is equal to -22.5.

To simplify the expression -15 - |-7.5|, we'll follow these steps:

Evaluate the absolute value: |-7.5|.

The absolute value of a number is its distance from zero on the number line. In this case, |-7.5| is equal to 7.5 because 7.5 units away from zero.

Substitute the absolute value into the expression:

-15 - 7.5.

Perform the subtraction:

-15 - 7.5 = -22.5.

Therefore, the simplified expression -15 - |-7.5| is equal to -22.5.

To know more about an expression follow;

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Help!!
Use the diagram of the equilateral triangle shown below to answer the following questions. Show the work that leads to your answers. a. What is the perimeter of the triangle? b. What is the height, ℎ mm, of the equilateral triangle? Write an exact answer using a square root and an approximate answer rounded to the tenths place.

Help!!Use the diagram of the equilateral triangle shown below to answer the following questions. Show

Answers

Answer:

Perimeter is 12mm, height is \(2\sqrt3\)mm in simplest radical form, and 3.5mm in approximate decimal form.

Step-by-step explanation:

The perimeter is easy; since it's an equilateral triangle, all sides are the same length of 4, so you can just do 3*4 (3 sides, 4mm each) to get a perimeter of 12.

For the height, you can see that it forms two right triangles, each with a given base of 2 and a hypotenuse of 4. We can apply the pythagorean theorem (\(a^2+b^2=c^2\)) here to find the missing leg length of the smaller right triangles, which is equal to the big triangle's height.

I've enclosed an attachment for that.

Hope this helps!

Help!!Use the diagram of the equilateral triangle shown below to answer the following questions. Show

Work out the size of angle x

Work out the size of angle x

Answers

Answer:

129°

Step-by-step explanation:

Step-by-step explanation:

soln,

51°+x=180°[exterior angles]

or,x=180°-51°

or,x=129°

•°•x=129°

hope it helps

Please help will mark Brainliest

Please help will mark Brainliest

Answers

Answer:

I think that is correct

Step-by-step explanation:

Use the Midpoint Rule with \(n=5\) to estimate the volume obtained by rotating about the y-axis the region under the curve \(y=\sqrt{1+x^3}\), \(0\leq x\leq 1\).

Answers

To estimate the volume using the Midpoint Rule with \(\displaystyle n=5\), we need to divide the interval \(\displaystyle 0\leq x\leq 1\) into \(\displaystyle n\) subintervals of equal width. Since \(\displaystyle n=5\), each subinterval will have a width of \(\displaystyle \Delta x=\frac{1-0}{5}=\frac{1}{5}\).

Now, let's calculate the volume using the Midpoint Rule. The formula for the volume obtained by rotating about the y-axis is:

\(\displaystyle V\approx 2\pi \sum _{i=1}^{n}y_{i}\Delta x\)

where \(\displaystyle y_{i}\) represents the value of the function \(\displaystyle y=\sqrt{1+x^{3}}\) evaluated at the midpoint of each subinterval.

First, let's find the midpoints of the subintervals. Since the width of each subinterval is \(\displaystyle \Delta x=\frac{1}{5}\), the midpoint of the \(\displaystyle i\)-th subinterval is given by:

\(\displaystyle x_{i}=\frac{\Delta x}{2}+\left( i-\frac{1}{2}\right) \Delta x=\frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\)

Substituting \(\displaystyle x_{i}\) into the function \(\displaystyle y=\sqrt{1+x^{3}}\), we obtain:

\(\displaystyle y_{i}=\sqrt{1+\left( \frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\right) ^{3}}\)

Now, we can calculate the approximate volume using the Midpoint Rule:

\(\displaystyle V\approx 2\pi \sum _{i=1}^{5}y_{i}\Delta x\)

Substituting the values of \(\displaystyle y_{i}\) and \(\displaystyle \Delta x\) into the formula, we can evaluate the sum and compute the estimated volume.

\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)

♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)

The answer your looking for is right above my

i need to know what the answer is!?

i need to know what the answer is!?

Answers

Answer:

2

Step-by-step explanation:

Use PEMDAS

First simplify the exponent (9)

Next multiply 5 and 3 (15)

Now add 15 and 15 (30)

Add 9 and 6 (15)

Lastly simply 30 by 15 (2)

Answer:

\(\boxed{A. 2}\)

Step-by-step explanation:

Hey there!

Well we first need to solve the top part.

15 + 5 * 3

5*3 = 15

15 + 15 = 30

3^2 + 6

3*3 = 9

9+6 = 15

Now we have 30 ÷ 15 = 2.

Hope this helps :)

I WILL MARK BRAINLIEST IF YOU ANSWER THIS RIGHT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
A circle with a radius with 14 feet is cut to 8 equal pieces. How many square feet are 3 of the pieces? use 22/7 for pi.
1,175 square feet
231 square feet
22 square feet
11 square feet

Answers

Answer: The answer is 231 square feet


10 points, with explanation, please.
Triangle NMO is drawn with vertices N(−5, 2), M(−2, 1), O(−3 , 3). Determine the image vertices of N′M′O′ if the preimage is reflected over x = −5.

N′(5, 2), M′(2, 1), O′(3, 3)

N′(2, −5), M′(1, −2), O′(3, −3)

N′(0, 2), M′(3, 1), O′(2, 3)

N′(−5, 2), M′(−8, 1), O′(−7, 3)

Answers

Answer:

I had to put it as an image since some of the symbols doesn't really a-line properly

Step-by-step explanation:

10 points, with explanation, please. Triangle NMO is drawn with vertices N(5, 2), M(2, 1), O(3 , 3).

Can someone help please for 10 points due today need asp

Can someone help please for 10 points due today need asp

Answers

Answer:good job

Step-by-step explanation:

they are all right

Which expressions are equivalent to 2(3/4x + 7) - 3 (1/2x - 5) Check all that apply.
1) -1

2) 29

3) 2(3/4x + 7) + (-3) [1/2x + (-5)]

4) 2(3/4x) / 2 (7) / 3(1/2x) / 3(-5)

5) 2(3/4x) / 2(7) / (-3)(1/2x) / (-3)(-5)

Please hurry, the assignments due soon! The "/" stand for division btw-

Answers

well the answer is 29

meaning 2 and 3 are the correct answers :)

Answer:

3

Step-by-step explanation:

What is 125 ÷ (2×7) = ???

Answers

Answer:

8.93

Step-by-step explanation:

Answer:

the answer is 8 and 13/14, or 8.93

Step-by-step explanation:

because of PEMDAS, we solve the numbers in the parenthesis first.

2 x 7 = 14.

next, we divide 125 by 14.     125 / 14 =     8 and 13/14

in decimal form, that is 8.93 (rounded up)

hope this helps :D

I need help beacuse is $9.86 x 8 is 78.88 right ???

Answers

Yep you did it right!
Mhm, 9.86 x 8 = 78.88, you can also check on a calculator

Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared deals from Speedy Clean Carwash and Sudsy Bubbles Carwash to decide which membership to get. Robin arranged the information in the tables below.
How many times will Robin need to wash her car to spend the same amount at both carwashes?
P.S.: I attached the table below:)

Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared

Answers

Robin will need to wash her car 4 times to have spent the same amount at both car washes. I hope this helps!
Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared
It will be 35 dollars

NEED HELP ASAP 27 hundredths is written this way: 0.27. Which scale shows 0.27 kilogram?

NEED HELP ASAP 27 hundredths is written this way: 0.27. Which scale shows 0.27 kilogram?

Answers

It would be answer B :)
It would be B because it’s the closest to 0.3

What's 5 + (7 x 8) divided by 3

Answers

Answer:

23.6666666667

Step-by-step explanation:

Answer:

23.67 or \(\frac{71}{3}\)

Step-by-step explanation:

You would follow the steps of PEMDAS (parentheses, exponents, multiplication, division, addition, subtraction)

So the first thing we will do is the problem inside the parentheses.

5 + (7 x 8) ÷ 3

5 + 56 ÷ 3

Then we will do the one next in line which is division.

5 + 56 ÷ 3

5 + 18.6666...

Finally we should do the addition.

23.6666...

Now since we have a repeating decimal we should round or turn it into a fraction.

23.67 or \(\frac{71}{3}\)

What is the first step in determining if 6 is a solution to 3 x = 18?
A: Substitute 6 for x in the equation.
B :Rewrite 3 x as 36.
C: Multiply 3 and 18.
D: Divide 6 by 3.

Answers

Answer:

I think its A. Im sorry if its wrong

Step-by-step explanation:

It think it is A as well.

Write down the inequality for x that is shown on this line.

Write down the inequality for x that is shown on this line.

Answers

Answer:

x>3

Step-by-step explanation:

An open circle on a graph indicates greater than or less than and since the line points to the right then it'd be greater than and the circle is on 3.

The required inequality will be 3

On a coordinate grid, point L is at (-4, 4) and point S is at (8, 4). The distance (in units) between points L and S is ___.

Input whole numbers, such as 2.

(numerical numbers as expected!)

Answers

Answer:

(12,0)

Step-by-step explanation:

count up from -4 to 8, then the other coordinate is the same so it will stay

Create an equation and solve.
A cell phone company charges $0.35 for the first minute but only $.10 every
minute after that. How many minutes did Eric talk if the bill for the call was $5.45?

Answers

Answer:

The equation is 0.1x + 0.25 = 5.45. The solution is 52 minutes.

Step-by-step explanation:

If the cell phone company charges 0.35 for the first minute and 0.1 for every minute after that, then we know the flat fee for the call is 0.25, and then we can make a linear equation to solve.

This equation is 0.1x + 0.25 = 5.45.

To solve, we subtract 0.25 from both sides to get 0.1x = 5.2.

To isolate the x variable, we divide 0.1 from both sides, and we get:

5.2/0.1 = 5.2*10 = 52.

Hope this helps.

Please give brainliest

Answer: 52 Minutes

Step By Step Explanation:

$5.45 - $0.35 = $5.10

$5.10 ÷ $0.10 = 51

51 + 1 = 52 Minutes

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-3/2,-3.2,2.-0.32 arrange least to greatest. The smallest number on the left.

Answers

-3.2, -3/2, -.32, 2.
i couldn’t tell if that was positive 2 by itself but if so, that should be the answer.

Answer:

-3.2, -3/2, -.32, 2.

i couldn’t tell if that was positive 2 by itself but if so, that should be the answer.

Bonsoir svp aidez moi pour demain merci

AEB un triangle isocèle en point E et C le symétrique de A par rapport à E

1)Construire la figure

2)Montrer que le triangle ABC est rectangle

Answers

Answer:

the distance from church to school is 1 . 25km and the distance from school to home is 1 . 52km.how much is it from school to home than from church to school in metres

the answer is 1 the distance from church to school is 1.
25km and the distance from school to home is 1.52km.how much is it from school to home than from church to school in metres

Which of the xxx-values satisfy the following inequality?
7x\lt 217x<217, x, \lt, 21
Choose all answers that apply:
A
x = 1x=1x, equals, 1

(Choice B)
B
x = 2x=2x, equals, 2

(Choice C)
C
x = 3x=3

Answers

Answer:

CHOICE A AND B

Step-by-step explanation:

trust.

person above wrong

the first too answer this right get brainliest


576789.0 x 678757585 =

Answers

Answer:

3.9149991e+14

Step-by-step explanation:

I did it in my head

Answer: 391499908694565

Step-by-step explanation: used the multiplication algorithm

Which equation is parallel to:
y = -2x +2
Group of answer choices

y = 1/2x +7

y = -2x +5

y = -1/2x +3

y = 2x +6

Answers

Answer:

y = -2x +5

Step-by-step explanation:

If the slope(-2x is the slope in this case) is the same, then the equation is parallel

I'm pretty sure that it's the second one

Whats 23.95 x 17.3? Please let me know below

Answers

414.335 because of a calculator

Answer:

414.335

Step-by-step explanation:

Put the 23.95 on top of the 17.3

if there are 208 ducks in the lake and there are 499 more duck that want to join. But the lake can only fit 250. How would they get all the ducks in how big does the lake need to be. Explane your answer.

Answers

hello, there are 208 ducks, there are 449 more ducks who want to come to the lake 208 + 499 = 707 total ducks The maximum number of ducks this lake can buy is 250.

formula = total ducks - total number of ducks it can afford = calculates how big the lake can be.

so 707-250 = 457

Answer:

457

Step-by-step explanation:

I used a caculator!

Can someone help, please

Can someone help, please

Answers

Answer: the slope is -5/8

Step-by-step explanation: use desmos graphing calculator, it helps a lot. just put the 2 coordinates in and you see that the y value drops from 9 to 4, and the x value moves right from 1 to 9, hence -5/8

Answer:slope is -5/8
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