Answer: its C
Step-by-step explanation:
The area of an equilateral triangle can be written as a squared sine (60 degrees) thus Option D is correct.
What is an equilateral triangle?The triangle in which all three sides are of the same length. In this the all angles are the same 60°.
The area of a triangle can be calculated by,
A = 1/2 x b x h..................1
Where,A - Area of triangle
b - base
h - height
From, Pythagoras Theorem
a² = h² + (a/2)²
h² = a² - (a/2)²
Put the value of “h” in equation 1
A = 1/2 x b x h
A = 1/2 x √[a² - (a/2)²] x h
A = √3/4 a²
Since √3/4 = sin 60°.
So, the area of an equilateral triangle as a squared sine (60 degrees).
Learn more about the equilateral triangle;
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Samantha makes a conjecture that the product of two odd integers is always an odd integer. Which choice is the best proof of her conjecture? CLEAR CHECK Look at these different examples: 7 × 3 = 21, 5 × 9 = 45, 11 × 3 = 33. So the product of two odd numbers must be odd. Every time you multiply two odd numbers, the product is an odd number. Let (2a + 1) be an odd number. Let (2b + 1) be another odd number. The product 2(2ab + a + b) + 1 is a multiple of 2 plus 1, which is an odd number. Let a and b both represent odd numbers, and let a × b be an odd number. Therefore, a × b = b × a, which shows that the product of two odd numbers is odd.
Answer:
Let (2a + 1) be an odd number. Let (2b + 1) be another odd number. The product 2(2ab + a + b) + 1 is a multiple of 2 plus 1, which is an odd number.
Step-by-step explanation:
Which costs the last per ounce, a 20 ounce soda for $0.60, 68 ounce for $2.38, or 100 ounce for $3.32? Explain how you got your answer.
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Answer:
20 oz for $0.60
Step-by-step explanation:
You can determine the least-cost item by comparing costs at the same size. (This can be done using mental arithmetic.)
68 ounces is between 3 and 4 times the size of 20 ounces. If the costs were the same, 68 ounces would cost between 3·$60 = $1.80 and 4·$60 = $2.40. The cost of 68 ounces is closer to $2.40 than 68 is to 80, so we conclude the 20-ounce soda costs less.
The cost of 100 ounces at the 20-ounce price would be 5·$0.60 = $3.00, which is less than the cost of the 100-ounce soda. Again, the 20-ounce soda is cheaper.
The least cost per ounce is the 20-ounce soda.
__
If you like, you can actually find the cost per ounce by dividing the cost by the ounces. Those results are shown in the attached table. The 20-ounce soda costs the least.
5/7 + 2/3
Plz Answer
Answer:
29/21
Step-by-step explanation:
5/7 = 15/21
2/3 = 14/21
Answer:
1.38 or 1 and 1/7
Step-by-step explanation:
5/7 + 2/3
10/21 + 14/21= 24/21
then your have to divide 24 by 21 = 1 and 3/21
then simplify 1 1/7
does this help?
8cm
20cm
What is the volume of this cylinder?
Answer:
4021.2386 cm ^3
Step-by-step explanation:
V = πr2h = π·82·20 = 4021.2386 cm ^3
* Find the length of BD.
A
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Answer:
BD = 17
Step-by-step explanation:
The Pythagorean theorem can be used twice:
BC^2 + AC^2 = AB^2
BC = √(AB^2 -AC^2) = √(25^2 -24^2) = √49 = 7
__
Likewise, ...
DC = √(AD^2 -AC^2) = √(26^2 -24^2) = √100 = 10
Then ...
BD = BC +DC = 7 + 10
BD = 17
What is the equation of a line that passes through (1,2) and has a slope of 7?
Write your answer in the slope -intercept format, y=mx+b.
Pls help
What is 7.4 + ? = 1.
what does it mean by a variables
Answer:
variables
Step-by-step explanation:
variables are constantly variating to contour to the problem it is being used in like in rentals, the variable is the amount of hours rented and the constant is the price it's being rented for
The missing number in the arithmetic sequence 60, 51, ___, 33 is:
Answer:
42
Step-by-step explanation:
In this question, we have the find the rate of change in the sequence.
To find this, we need to find how much the sequence is changing by.
We know from 60 to 51 is -9, so we know that our sequence is changing by -9.
To find our unknown number, we would subtract 9 from 51.
51 - 9 = 42
Our missing number in the sequence is 42.
We can check our answer by subtracting 9 from 42. This gives us our next number, which is 33.
42 would be your answer.
8 * 6 + (12-4) / 2 equals to what
Answer:
52
Step-by-step explanation:
Simplify the expression (Steps shown below).
Find the slope of the line graphed below.
-
Step-by-step explanation:
1st point=(-2,2)x1=-2,y1=2
2nd point=(3,-2)x2=3,y2=-2
slope=y2-y1/x2-x1
According to the question,
slope=-2-2/3-(-2)=-4/5
Erwin earns $ 2 , 100 per month. Her deductions amount to 26 % of her paycheck. How much does Erwin take home each month?
Answer:
Credit ⇒ 45
Debit ⇒ $30
Step-by-step explanation:
Credit = $45
Debit = $30
When an account balance increases it means that it has been credited and when it decreases, it has been debited.
The beginning balance here is $0 and the closing balance is $15.
There were 2 transactions, one credit and one debit.
For the closing balance to be $15, the Credit amount must have been $15 more than the Debit amount.
Calculate the length of the diagonal, d, of this cylinder
the answer is 10ft hope this helps!
Please help me please due today
Answer:
2
Step-by-step explanation:
Use the method [tex]\frac{rise}{run}[/tex].
Both points are 3 across (run), and 6 up (rise).
Plug it in and divide the numbers.
6/3 = 2
Hence, m equals 2.
Are the ratios 1:2 and 8:20 equivalent?
Answer:
Nah
Step-by-step explanation:
8:20=2:5
1:2 is not equal to 2:5
Simply each expression
1) 2x+5-3x
2) -(w-2)
Answer:
1) -x+5
2)-w+2
Step-by-step explanation:
2x+5-3x Combine.
-x+5
-(w-2)
-w+2
I need help- I’ll give brainlist if it’s right
Answer:
D. x>[4]
Plzzzzz give me Brainliest!!!!!
Answer:
D. x > 4
Step-by-step explanation:
You have to do the opposite operations to get the variable on one side of the equation by itself.
4 - x + 4 = 8 - 4
x = 4
You only switch the comparison sign if you mutliply or divide by negative numbers when you do opposite operations to get the variable on one side of the equation by itself.
I hope this helps!
Write the exponent for the expression.2.78
The exponent for the expression is ___
Answer:
The exponent for the expression is -8
Step-by-step explanation:
I dont think this is right PLEASE HELP ASAP!!!! thank you so so so much!!! *will give brainliest*
Answer:
i got -2.093 repeating
Step-by-step explanation:
multiply -2 and 3.14 then divide by - 3 sorry if not right
30 points! See pic attached. Will mark brainliest.
Answer:
Step-by-step explanation:
i think it a c e i hope this helps :^
answer: D,B,C
Step-by-step explanation:
line A is perpendicular to B and line A and B is parallel to line C
Tina has $24.00 in coins and is putting them into piles of $0.03. How many piles will she have?
Answer:
800 I think I think I think or I know
Help me please 9w+4= 2w+32
Answer:
w=4
Step-by-step explanation:
9w+4=2w+32
-2w -2w
7w+4=32
-4 -4
7w=28
w=4
Answer:
w = 4
Step-by-step explanation:
How to solve...
You have your equation 9w + 4 = 2w + 32, now you take 4 and subtract on both sides, so you will subtract it to 4 and 32. You get 28 as your answer. Now leave that alone, next you will take 2w and subtract it on both sides, when you subtract 2w to 9w you will get 7w. Now just do 28 divided by 7, which is 4. So w = 4. Hope this helps!
9w + 4 = 2w + 32
- 4 = - 4
--------------------------
9w = 2w + 28
-2w = -2w + 28
---------------------------
7w = 28
7w = 7w
---------------------------
w = 4
What are all the variables of x y and z ?
Answer:
x°=96°
y°=88°
z°=151°
Step-by-step explanation:
55°+29°+×°=180°
×°=96°
96°+55°=z°
z°=151
then let variable A° be one of the inner angle of the triangle
A°+z°=180°
A°+151°=180°
A°=29°
finally adding all the inner angles will give us 180°
96°+y°-13°+29=180°
y°=88°
can someone help me on this please :)
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Answer:
x = 6y = 18Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)/(a^c) = a^(b-c)
(a^b)^c = a^(bc)
__
[tex]\left(\dfrac{a^3b^4}{a^2b}\right)^6= (a^{3-2}b^{4-1})^6 =a^{1\cdot6}b^{3\cdot6}=\boxed{a^6b^{18}}[/tex]
Comparing to the given form, we see x=6, y=18.
Solve for z. 12=15(z-1/5)
Answer:
1
Step-by-step explanation:
First, Distribute
Then, add 3 to both sides
Then, Divide 15 from both sides
1=Z
Work out these approximate conversions. 8 miles=..... km
Answer:
12.87 km
Step-by-step explanation:
searched it up
PLEASE HELP | WILL GIVE BRAINLY IF RIGHT | LOOK AT IMAGE
Answer:
Town C
Step-by-step explanation:
i^2=√-1 true or false
Answer:
im pretty sure its true :)
Step-by-step explanation:
Have a good day sorry if its wrong
Answer: True
Step-by-step explanation: i^2=-1
-1 = \sqrt{-1}
Write the ratio of the first measurement to the second measurement. Compare in millimeters Diameter of ball A: 33mm Diameter of ball B: 5.4 cm
Answer:
The ratio of first measurement to second measurement in millimeters is 11:18
Step-by-step explanation:
Given that:
Diameter of ball A = 33 mm
Diameter of ball B = 5.4 cm
1 cm = 10 mm
5.4 cm = 10*5.4 mm
5.4 cm = 54 mm
Ratio of diameter of ball A to diameter of ball B.
33 : 54
Simplifying the ratio
11 : 18
Hence,
The ratio of first measurement to second measurement in millimeters is 11:18
Solve for x. 5 = 1/5x -3
Answer:
40.
Step-by-step explanation:
5=1/5x-3
8=1/5x
40
Brainliest PLS